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freebsd/contrib/gcc/expr.c

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Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Convert tree expression to rtl instructions, for GNU compiler.
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #3
2001-02-17 08:34:50 +00:00
Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
2000, 2001, 2002 Free Software Foundation, Inc.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
This file is part of GCC.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
You should have received a copy of the GNU General Public License
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "config.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "system.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "machmode.h"
#include "rtl.h"
#include "tree.h"
#include "obstack.h"
#include "flags.h"
#include "regs.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "hard-reg-set.h"
#include "except.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "function.h"
#include "insn-config.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "insn-attr.h"
/* Include expr.h after insn-config.h so we get HAVE_conditional_move. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "expr.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "optabs.h"
#include "libfuncs.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "recog.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "reload.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "output.h"
#include "typeclass.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "toplev.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "ggc.h"
#include "langhooks.h"
#include "intl.h"
#include "tm_p.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Decide whether a function's arguments should be processed
from first to last or from last to first.
They should if the stack and args grow in opposite directions, but
only if we have push insns. */
#ifdef PUSH_ROUNDING
#if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#define PUSH_ARGS_REVERSED /* If it's last to first. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
#endif
#ifndef STACK_PUSH_CODE
#ifdef STACK_GROWS_DOWNWARD
#define STACK_PUSH_CODE PRE_DEC
#else
#define STACK_PUSH_CODE PRE_INC
#endif
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Assume that case vectors are not pc-relative. */
#ifndef CASE_VECTOR_PC_RELATIVE
#define CASE_VECTOR_PC_RELATIVE 0
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If this is nonzero, we do not bother generating VOLATILE
around volatile memory references, and we are willing to
output indirect addresses. If cse is to follow, we reject
indirect addresses so a useful potential cse is generated;
if it is used only once, instruction combination will produce
the same indirect address eventually. */
int cse_not_expected;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Chain of pending expressions for PLACEHOLDER_EXPR to replace. */
static tree placeholder_list = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* This structure is used by move_by_pieces to describe the move to
be performed. */
struct move_by_pieces
{
rtx to;
rtx to_addr;
int autinc_to;
int explicit_inc_to;
rtx from;
rtx from_addr;
int autinc_from;
int explicit_inc_from;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT len;
HOST_WIDE_INT offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int reverse;
};
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* This structure is used by store_by_pieces to describe the clear to
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
be performed. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
struct store_by_pieces
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
rtx to;
rtx to_addr;
int autinc_to;
int explicit_inc_to;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT len;
HOST_WIDE_INT offset;
rtx (*constfun) PARAMS ((PTR, HOST_WIDE_INT, enum machine_mode));
PTR constfundata;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int reverse;
};
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
extern struct obstack permanent_obstack;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static rtx enqueue_insn PARAMS ((rtx, rtx));
static unsigned HOST_WIDE_INT move_by_pieces_ninsns
PARAMS ((unsigned HOST_WIDE_INT,
unsigned int));
static void move_by_pieces_1 PARAMS ((rtx (*) (rtx, ...), enum machine_mode,
struct move_by_pieces *));
static rtx clear_by_pieces_1 PARAMS ((PTR, HOST_WIDE_INT,
enum machine_mode));
static void clear_by_pieces PARAMS ((rtx, unsigned HOST_WIDE_INT,
unsigned int));
static void store_by_pieces_1 PARAMS ((struct store_by_pieces *,
unsigned int));
static void store_by_pieces_2 PARAMS ((rtx (*) (rtx, ...),
enum machine_mode,
struct store_by_pieces *));
static rtx get_subtarget PARAMS ((rtx));
static int is_zeros_p PARAMS ((tree));
static int mostly_zeros_p PARAMS ((tree));
static void store_constructor_field PARAMS ((rtx, unsigned HOST_WIDE_INT,
HOST_WIDE_INT, enum machine_mode,
tree, tree, int, int));
static void store_constructor PARAMS ((tree, rtx, int, HOST_WIDE_INT));
static rtx store_field PARAMS ((rtx, HOST_WIDE_INT,
HOST_WIDE_INT, enum machine_mode,
tree, enum machine_mode, int, tree,
int));
static rtx var_rtx PARAMS ((tree));
static HOST_WIDE_INT highest_pow2_factor PARAMS ((tree));
static rtx expand_increment PARAMS ((tree, int, int));
static void do_jump_by_parts_greater PARAMS ((tree, int, rtx, rtx));
static void do_jump_by_parts_equality PARAMS ((tree, rtx, rtx));
static void do_compare_and_jump PARAMS ((tree, enum rtx_code, enum rtx_code,
rtx, rtx));
static rtx do_store_flag PARAMS ((tree, rtx, enum machine_mode, int));
#ifdef PUSH_ROUNDING
static void emit_single_push_insn PARAMS ((enum machine_mode, rtx, tree));
#endif
static void do_tablejump PARAMS ((rtx, enum machine_mode, rtx, rtx, rtx));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Record for each mode whether we can move a register directly to or
from an object of that mode in memory. If we can't, we won't try
to use that mode directly when accessing a field of that mode. */
static char direct_load[NUM_MACHINE_MODES];
static char direct_store[NUM_MACHINE_MODES];
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* If a memory-to-memory move would take MOVE_RATIO or more simple
move-instruction sequences, we will do a movstr or libcall instead. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifndef MOVE_RATIO
#if defined (HAVE_movstrqi) || defined (HAVE_movstrhi) || defined (HAVE_movstrsi) || defined (HAVE_movstrdi) || defined (HAVE_movstrti)
#define MOVE_RATIO 2
#else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we are optimizing for space (-Os), cut down the default move ratio. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#define MOVE_RATIO (optimize_size ? 3 : 15)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
#endif
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* This macro is used to determine whether move_by_pieces should be called
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to perform a structure copy. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifndef MOVE_BY_PIECES_P
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#define MOVE_BY_PIECES_P(SIZE, ALIGN) \
(move_by_pieces_ninsns (SIZE, ALIGN) < (unsigned int) MOVE_RATIO)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* This array records the insn_code of insns to perform block moves. */
enum insn_code movstr_optab[NUM_MACHINE_MODES];
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* This array records the insn_code of insns to perform block clears. */
enum insn_code clrstr_optab[NUM_MACHINE_MODES];
/* SLOW_UNALIGNED_ACCESS is non-zero if unaligned accesses are very slow. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifndef SLOW_UNALIGNED_ACCESS
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) STRICT_ALIGNMENT
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
/* This is run once per compilation to set up which modes can be used
directly in memory and to initialize the block move optab. */
void
init_expr_once ()
{
rtx insn, pat;
enum machine_mode mode;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int num_clobbers;
rtx mem, mem1;
start_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Try indexing by frame ptr and try by stack ptr.
It is known that on the Convex the stack ptr isn't a valid index.
With luck, one or the other is valid on any machine. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
mem = gen_rtx_MEM (VOIDmode, stack_pointer_rtx);
mem1 = gen_rtx_MEM (VOIDmode, frame_pointer_rtx);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
insn = emit_insn (gen_rtx_SET (0, NULL_RTX, NULL_RTX));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
pat = PATTERN (insn);
for (mode = VOIDmode; (int) mode < NUM_MACHINE_MODES;
mode = (enum machine_mode) ((int) mode + 1))
{
int regno;
rtx reg;
direct_load[(int) mode] = direct_store[(int) mode] = 0;
PUT_MODE (mem, mode);
PUT_MODE (mem1, mode);
/* See if there is some register that can be used in this mode and
directly loaded or stored from memory. */
if (mode != VOIDmode && mode != BLKmode)
for (regno = 0; regno < FIRST_PSEUDO_REGISTER
&& (direct_load[(int) mode] == 0 || direct_store[(int) mode] == 0);
regno++)
{
if (! HARD_REGNO_MODE_OK (regno, mode))
continue;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
reg = gen_rtx_REG (mode, regno);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
SET_SRC (pat) = mem;
SET_DEST (pat) = reg;
if (recog (pat, insn, &num_clobbers) >= 0)
direct_load[(int) mode] = 1;
SET_SRC (pat) = mem1;
SET_DEST (pat) = reg;
if (recog (pat, insn, &num_clobbers) >= 0)
direct_load[(int) mode] = 1;
SET_SRC (pat) = reg;
SET_DEST (pat) = mem;
if (recog (pat, insn, &num_clobbers) >= 0)
direct_store[(int) mode] = 1;
SET_SRC (pat) = reg;
SET_DEST (pat) = mem1;
if (recog (pat, insn, &num_clobbers) >= 0)
direct_store[(int) mode] = 1;
}
}
end_sequence ();
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* This is run at the start of compiling a function. */
void
init_expr ()
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
cfun->expr = (struct expr_status *) xmalloc (sizeof (struct expr_status));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
pending_chain = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
pending_stack_adjust = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
stack_pointer_delta = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
inhibit_defer_pop = 0;
saveregs_value = 0;
apply_args_value = 0;
forced_labels = 0;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
void
mark_expr_status (p)
struct expr_status *p;
{
if (p == NULL)
return;
ggc_mark_rtx (p->x_saveregs_value);
ggc_mark_rtx (p->x_apply_args_value);
ggc_mark_rtx (p->x_forced_labels);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
free_expr_status (f)
struct function *f;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
free (f->expr);
f->expr = NULL;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Small sanity check that the queue is empty at the end of a function. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
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2002-02-01 18:16:02 +00:00
finish_expr_for_function ()
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (pending_chain)
abort ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Manage the queue of increment instructions to be output
for POSTINCREMENT_EXPR expressions, etc. */
/* Queue up to increment (or change) VAR later. BODY says how:
BODY should be the same thing you would pass to emit_insn
to increment right away. It will go to emit_insn later on.
The value is a QUEUED expression to be used in place of VAR
where you want to guarantee the pre-incrementation value of VAR. */
static rtx
enqueue_insn (var, body)
rtx var, body;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
pending_chain = gen_rtx_QUEUED (GET_MODE (var), var, NULL_RTX, NULL_RTX,
body, pending_chain);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return pending_chain;
}
/* Use protect_from_queue to convert a QUEUED expression
into something that you can put immediately into an instruction.
If the queued incrementation has not happened yet,
protect_from_queue returns the variable itself.
If the incrementation has happened, protect_from_queue returns a temp
that contains a copy of the old value of the variable.
Any time an rtx which might possibly be a QUEUED is to be put
into an instruction, it must be passed through protect_from_queue first.
QUEUED expressions are not meaningful in instructions.
Do not pass a value through protect_from_queue and then hold
on to it for a while before putting it in an instruction!
If the queue is flushed in between, incorrect code will result. */
rtx
protect_from_queue (x, modify)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx x;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int modify;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
RTX_CODE code = GET_CODE (x);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#if 0 /* A QUEUED can hang around after the queue is forced out. */
/* Shortcut for most common case. */
if (pending_chain == 0)
return x;
#endif
if (code != QUEUED)
{
/* A special hack for read access to (MEM (QUEUED ...)) to facilitate
use of autoincrement. Make a copy of the contents of the memory
location rather than a copy of the address, but not if the value is
of mode BLKmode. Don't modify X in place since it might be
shared. */
if (code == MEM && GET_MODE (x) != BLKmode
&& GET_CODE (XEXP (x, 0)) == QUEUED && !modify)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx y = XEXP (x, 0);
rtx new = replace_equiv_address_nv (x, QUEUED_VAR (y));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (QUEUED_INSN (y))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp = gen_reg_rtx (GET_MODE (x));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_insn_before (gen_move_insn (temp, new),
QUEUED_INSN (y));
return temp;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Copy the address into a pseudo, so that the returned value
remains correct across calls to emit_queue. */
return replace_equiv_address (new, copy_to_reg (XEXP (new, 0)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Otherwise, recursively protect the subexpressions of all
the kinds of rtx's that can contain a QUEUED. */
if (code == MEM)
{
rtx tem = protect_from_queue (XEXP (x, 0), 0);
if (tem != XEXP (x, 0))
{
x = copy_rtx (x);
XEXP (x, 0) = tem;
}
}
else if (code == PLUS || code == MULT)
{
rtx new0 = protect_from_queue (XEXP (x, 0), 0);
rtx new1 = protect_from_queue (XEXP (x, 1), 0);
if (new0 != XEXP (x, 0) || new1 != XEXP (x, 1))
{
x = copy_rtx (x);
XEXP (x, 0) = new0;
XEXP (x, 1) = new1;
}
}
return x;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If the increment has not happened, use the variable itself. Copy it
into a new pseudo so that the value remains correct across calls to
emit_queue. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (QUEUED_INSN (x) == 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return copy_to_reg (QUEUED_VAR (x));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the increment has happened and a pre-increment copy exists,
use that copy. */
if (QUEUED_COPY (x) != 0)
return QUEUED_COPY (x);
/* The increment has happened but we haven't set up a pre-increment copy.
Set one up now, and use it. */
QUEUED_COPY (x) = gen_reg_rtx (GET_MODE (QUEUED_VAR (x)));
emit_insn_before (gen_move_insn (QUEUED_COPY (x), QUEUED_VAR (x)),
QUEUED_INSN (x));
return QUEUED_COPY (x);
}
/* Return nonzero if X contains a QUEUED expression:
if it contains anything that will be altered by a queued increment.
We handle only combinations of MEM, PLUS, MINUS and MULT operators
since memory addresses generally contain only those. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
int
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
queued_subexp_p (x)
rtx x;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum rtx_code code = GET_CODE (x);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
switch (code)
{
case QUEUED:
return 1;
case MEM:
return queued_subexp_p (XEXP (x, 0));
case MULT:
case PLUS:
case MINUS:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return (queued_subexp_p (XEXP (x, 0))
|| queued_subexp_p (XEXP (x, 1)));
default:
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
/* Perform all the pending incrementations. */
void
emit_queue ()
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx p;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
while ((p = pending_chain))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx body = QUEUED_BODY (p);
if (GET_CODE (body) == SEQUENCE)
{
QUEUED_INSN (p) = XVECEXP (QUEUED_BODY (p), 0, 0);
emit_insn (QUEUED_BODY (p));
}
else
QUEUED_INSN (p) = emit_insn (QUEUED_BODY (p));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
pending_chain = QUEUED_NEXT (p);
}
}
/* Copy data from FROM to TO, where the machine modes are not the same.
Both modes may be integer, or both may be floating.
UNSIGNEDP should be nonzero if FROM is an unsigned type.
This causes zero-extension instead of sign-extension. */
void
convert_move (to, from, unsignedp)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx to, from;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int unsignedp;
{
enum machine_mode to_mode = GET_MODE (to);
enum machine_mode from_mode = GET_MODE (from);
int to_real = GET_MODE_CLASS (to_mode) == MODE_FLOAT;
int from_real = GET_MODE_CLASS (from_mode) == MODE_FLOAT;
enum insn_code code;
rtx libcall;
/* rtx code for making an equivalent value. */
enum rtx_code equiv_code = (unsignedp ? ZERO_EXTEND : SIGN_EXTEND);
to = protect_from_queue (to, 1);
from = protect_from_queue (from, 0);
if (to_real != from_real)
abort ();
/* If FROM is a SUBREG that indicates that we have already done at least
the required extension, strip it. We don't handle such SUBREGs as
TO here. */
if (GET_CODE (from) == SUBREG && SUBREG_PROMOTED_VAR_P (from)
&& (GET_MODE_SIZE (GET_MODE (SUBREG_REG (from)))
>= GET_MODE_SIZE (to_mode))
&& SUBREG_PROMOTED_UNSIGNED_P (from) == unsignedp)
from = gen_lowpart (to_mode, from), from_mode = to_mode;
if (GET_CODE (to) == SUBREG && SUBREG_PROMOTED_VAR_P (to))
abort ();
if (to_mode == from_mode
|| (from_mode == VOIDmode && CONSTANT_P (from)))
{
emit_move_insn (to, from);
return;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (VECTOR_MODE_P (to_mode) || VECTOR_MODE_P (from_mode))
{
if (GET_MODE_BITSIZE (from_mode) != GET_MODE_BITSIZE (to_mode))
abort ();
if (VECTOR_MODE_P (to_mode))
from = simplify_gen_subreg (to_mode, from, GET_MODE (from), 0);
else
to = simplify_gen_subreg (from_mode, to, GET_MODE (to), 0);
emit_move_insn (to, from);
return;
}
if (to_real != from_real)
abort ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (to_real)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx value, insns;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE_BITSIZE (from_mode) < GET_MODE_BITSIZE (to_mode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Try converting directly if the insn is supported. */
if ((code = can_extend_p (to_mode, from_mode, 0))
!= CODE_FOR_nothing)
{
emit_unop_insn (code, to, from, UNKNOWN);
return;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef HAVE_trunchfqf2
if (HAVE_trunchfqf2 && from_mode == HFmode && to_mode == QFmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_unop_insn (CODE_FOR_trunchfqf2, to, from, UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef HAVE_trunctqfqf2
if (HAVE_trunctqfqf2 && from_mode == TQFmode && to_mode == QFmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_unop_insn (CODE_FOR_trunctqfqf2, to, from, UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
#endif
#ifdef HAVE_truncsfqf2
if (HAVE_truncsfqf2 && from_mode == SFmode && to_mode == QFmode)
{
emit_unop_insn (CODE_FOR_truncsfqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncdfqf2
if (HAVE_truncdfqf2 && from_mode == DFmode && to_mode == QFmode)
{
emit_unop_insn (CODE_FOR_truncdfqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncxfqf2
if (HAVE_truncxfqf2 && from_mode == XFmode && to_mode == QFmode)
{
emit_unop_insn (CODE_FOR_truncxfqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_trunctfqf2
if (HAVE_trunctfqf2 && from_mode == TFmode && to_mode == QFmode)
{
emit_unop_insn (CODE_FOR_trunctfqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_trunctqfhf2
if (HAVE_trunctqfhf2 && from_mode == TQFmode && to_mode == HFmode)
{
emit_unop_insn (CODE_FOR_trunctqfhf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncsfhf2
if (HAVE_truncsfhf2 && from_mode == SFmode && to_mode == HFmode)
{
emit_unop_insn (CODE_FOR_truncsfhf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncdfhf2
if (HAVE_truncdfhf2 && from_mode == DFmode && to_mode == HFmode)
{
emit_unop_insn (CODE_FOR_truncdfhf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncxfhf2
if (HAVE_truncxfhf2 && from_mode == XFmode && to_mode == HFmode)
{
emit_unop_insn (CODE_FOR_truncxfhf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_trunctfhf2
if (HAVE_trunctfhf2 && from_mode == TFmode && to_mode == HFmode)
{
emit_unop_insn (CODE_FOR_trunctfhf2, to, from, UNKNOWN);
return;
}
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef HAVE_truncsftqf2
if (HAVE_truncsftqf2 && from_mode == SFmode && to_mode == TQFmode)
{
emit_unop_insn (CODE_FOR_truncsftqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncdftqf2
if (HAVE_truncdftqf2 && from_mode == DFmode && to_mode == TQFmode)
{
emit_unop_insn (CODE_FOR_truncdftqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncxftqf2
if (HAVE_truncxftqf2 && from_mode == XFmode && to_mode == TQFmode)
{
emit_unop_insn (CODE_FOR_truncxftqf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_trunctftqf2
if (HAVE_trunctftqf2 && from_mode == TFmode && to_mode == TQFmode)
{
emit_unop_insn (CODE_FOR_trunctftqf2, to, from, UNKNOWN);
return;
}
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef HAVE_truncdfsf2
if (HAVE_truncdfsf2 && from_mode == DFmode && to_mode == SFmode)
{
emit_unop_insn (CODE_FOR_truncdfsf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncxfsf2
if (HAVE_truncxfsf2 && from_mode == XFmode && to_mode == SFmode)
{
emit_unop_insn (CODE_FOR_truncxfsf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_trunctfsf2
if (HAVE_trunctfsf2 && from_mode == TFmode && to_mode == SFmode)
{
emit_unop_insn (CODE_FOR_trunctfsf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_truncxfdf2
if (HAVE_truncxfdf2 && from_mode == XFmode && to_mode == DFmode)
{
emit_unop_insn (CODE_FOR_truncxfdf2, to, from, UNKNOWN);
return;
}
#endif
#ifdef HAVE_trunctfdf2
if (HAVE_trunctfdf2 && from_mode == TFmode && to_mode == DFmode)
{
emit_unop_insn (CODE_FOR_trunctfdf2, to, from, UNKNOWN);
return;
}
#endif
libcall = (rtx) 0;
switch (from_mode)
{
case SFmode:
switch (to_mode)
{
case DFmode:
libcall = extendsfdf2_libfunc;
break;
case XFmode:
libcall = extendsfxf2_libfunc;
break;
case TFmode:
libcall = extendsftf2_libfunc;
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
break;
case DFmode:
switch (to_mode)
{
case SFmode:
libcall = truncdfsf2_libfunc;
break;
case XFmode:
libcall = extenddfxf2_libfunc;
break;
case TFmode:
libcall = extenddftf2_libfunc;
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
break;
case XFmode:
switch (to_mode)
{
case SFmode:
libcall = truncxfsf2_libfunc;
break;
case DFmode:
libcall = truncxfdf2_libfunc;
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
break;
case TFmode:
switch (to_mode)
{
case SFmode:
libcall = trunctfsf2_libfunc;
break;
case DFmode:
libcall = trunctfdf2_libfunc;
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (libcall == (rtx) 0)
/* This conversion is not implemented yet. */
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
start_sequence ();
value = emit_library_call_value (libcall, NULL_RTX, LCT_CONST, to_mode,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
1, from, from_mode);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
insns = get_insns ();
end_sequence ();
emit_libcall_block (insns, to, value, gen_rtx_FLOAT_TRUNCATE (to_mode,
from));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
/* Now both modes are integers. */
/* Handle expanding beyond a word. */
if (GET_MODE_BITSIZE (from_mode) < GET_MODE_BITSIZE (to_mode)
&& GET_MODE_BITSIZE (to_mode) > BITS_PER_WORD)
{
rtx insns;
rtx lowpart;
rtx fill_value;
rtx lowfrom;
int i;
enum machine_mode lowpart_mode;
int nwords = CEIL (GET_MODE_SIZE (to_mode), UNITS_PER_WORD);
/* Try converting directly if the insn is supported. */
if ((code = can_extend_p (to_mode, from_mode, unsignedp))
!= CODE_FOR_nothing)
{
/* If FROM is a SUBREG, put it into a register. Do this
so that we always generate the same set of insns for
better cse'ing; if an intermediate assignment occurred,
we won't be doing the operation directly on the SUBREG. */
if (optimize > 0 && GET_CODE (from) == SUBREG)
from = force_reg (from_mode, from);
emit_unop_insn (code, to, from, equiv_code);
return;
}
/* Next, try converting via full word. */
else if (GET_MODE_BITSIZE (from_mode) < BITS_PER_WORD
&& ((code = can_extend_p (to_mode, word_mode, unsignedp))
!= CODE_FOR_nothing))
{
if (GET_CODE (to) == REG)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, to));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
convert_move (gen_lowpart (word_mode, to), from, unsignedp);
emit_unop_insn (code, to,
gen_lowpart (word_mode, to), equiv_code);
return;
}
/* No special multiword conversion insn; do it by hand. */
start_sequence ();
/* Since we will turn this into a no conflict block, we must ensure
that the source does not overlap the target. */
if (reg_overlap_mentioned_p (to, from))
from = force_reg (from_mode, from);
/* Get a copy of FROM widened to a word, if necessary. */
if (GET_MODE_BITSIZE (from_mode) < BITS_PER_WORD)
lowpart_mode = word_mode;
else
lowpart_mode = from_mode;
lowfrom = convert_to_mode (lowpart_mode, from, unsignedp);
lowpart = gen_lowpart (lowpart_mode, to);
emit_move_insn (lowpart, lowfrom);
/* Compute the value to put in each remaining word. */
if (unsignedp)
fill_value = const0_rtx;
else
{
#ifdef HAVE_slt
if (HAVE_slt
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& insn_data[(int) CODE_FOR_slt].operand[0].mode == word_mode
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& STORE_FLAG_VALUE == -1)
{
emit_cmp_insn (lowfrom, const0_rtx, NE, NULL_RTX,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
lowpart_mode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
fill_value = gen_reg_rtx (word_mode);
emit_insn (gen_slt (fill_value));
}
else
#endif
{
fill_value
= expand_shift (RSHIFT_EXPR, lowpart_mode, lowfrom,
size_int (GET_MODE_BITSIZE (lowpart_mode) - 1),
NULL_RTX, 0);
fill_value = convert_to_mode (word_mode, fill_value, 1);
}
}
/* Fill the remaining words. */
for (i = GET_MODE_SIZE (lowpart_mode) / UNITS_PER_WORD; i < nwords; i++)
{
int index = (WORDS_BIG_ENDIAN ? nwords - i - 1 : i);
rtx subword = operand_subword (to, index, 1, to_mode);
if (subword == 0)
abort ();
if (fill_value != subword)
emit_move_insn (subword, fill_value);
}
insns = get_insns ();
end_sequence ();
emit_no_conflict_block (insns, to, from, NULL_RTX,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_fmt_e (equiv_code, to_mode, copy_rtx (from)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
/* Truncating multi-word to a word or less. */
if (GET_MODE_BITSIZE (from_mode) > BITS_PER_WORD
&& GET_MODE_BITSIZE (to_mode) <= BITS_PER_WORD)
{
if (!((GET_CODE (from) == MEM
&& ! MEM_VOLATILE_P (from)
&& direct_load[(int) to_mode]
&& ! mode_dependent_address_p (XEXP (from, 0)))
|| GET_CODE (from) == REG
|| GET_CODE (from) == SUBREG))
from = force_reg (from_mode, from);
convert_move (to, gen_lowpart (word_mode, from), 0);
return;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Handle pointer conversion. */ /* SPEE 900220. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (to_mode == PQImode)
{
if (from_mode != QImode)
from = convert_to_mode (QImode, from, unsignedp);
#ifdef HAVE_truncqipqi2
if (HAVE_truncqipqi2)
{
emit_unop_insn (CODE_FOR_truncqipqi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_truncqipqi2 */
abort ();
}
if (from_mode == PQImode)
{
if (to_mode != QImode)
{
from = convert_to_mode (QImode, from, unsignedp);
from_mode = QImode;
}
else
{
#ifdef HAVE_extendpqiqi2
if (HAVE_extendpqiqi2)
{
emit_unop_insn (CODE_FOR_extendpqiqi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_extendpqiqi2 */
abort ();
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (to_mode == PSImode)
{
if (from_mode != SImode)
from = convert_to_mode (SImode, from, unsignedp);
#ifdef HAVE_truncsipsi2
if (HAVE_truncsipsi2)
{
emit_unop_insn (CODE_FOR_truncsipsi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_truncsipsi2 */
abort ();
}
if (from_mode == PSImode)
{
if (to_mode != SImode)
{
from = convert_to_mode (SImode, from, unsignedp);
from_mode = SImode;
}
else
{
#ifdef HAVE_extendpsisi2
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! unsignedp && HAVE_extendpsisi2)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
emit_unop_insn (CODE_FOR_extendpsisi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_extendpsisi2 */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifdef HAVE_zero_extendpsisi2
if (unsignedp && HAVE_zero_extendpsisi2)
{
emit_unop_insn (CODE_FOR_zero_extendpsisi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_zero_extendpsisi2 */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
abort ();
}
}
if (to_mode == PDImode)
{
if (from_mode != DImode)
from = convert_to_mode (DImode, from, unsignedp);
#ifdef HAVE_truncdipdi2
if (HAVE_truncdipdi2)
{
emit_unop_insn (CODE_FOR_truncdipdi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_truncdipdi2 */
abort ();
}
if (from_mode == PDImode)
{
if (to_mode != DImode)
{
from = convert_to_mode (DImode, from, unsignedp);
from_mode = DImode;
}
else
{
#ifdef HAVE_extendpdidi2
if (HAVE_extendpdidi2)
{
emit_unop_insn (CODE_FOR_extendpdidi2, to, from, UNKNOWN);
return;
}
#endif /* HAVE_extendpdidi2 */
abort ();
}
}
/* Now follow all the conversions between integers
no more than a word long. */
/* For truncation, usually we can just refer to FROM in a narrower mode. */
if (GET_MODE_BITSIZE (to_mode) < GET_MODE_BITSIZE (from_mode)
&& TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (to_mode),
GET_MODE_BITSIZE (from_mode)))
{
if (!((GET_CODE (from) == MEM
&& ! MEM_VOLATILE_P (from)
&& direct_load[(int) to_mode]
&& ! mode_dependent_address_p (XEXP (from, 0)))
|| GET_CODE (from) == REG
|| GET_CODE (from) == SUBREG))
from = force_reg (from_mode, from);
if (GET_CODE (from) == REG && REGNO (from) < FIRST_PSEUDO_REGISTER
&& ! HARD_REGNO_MODE_OK (REGNO (from), to_mode))
from = copy_to_reg (from);
emit_move_insn (to, gen_lowpart (to_mode, from));
return;
}
/* Handle extension. */
if (GET_MODE_BITSIZE (to_mode) > GET_MODE_BITSIZE (from_mode))
{
/* Convert directly if that works. */
if ((code = can_extend_p (to_mode, from_mode, unsignedp))
!= CODE_FOR_nothing)
{
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2002-02-01 18:16:02 +00:00
if (flag_force_mem)
from = force_not_mem (from);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_unop_insn (code, to, from, equiv_code);
return;
}
else
{
enum machine_mode intermediate;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
rtx tmp;
tree shift_amount;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Search for a mode to convert via. */
for (intermediate = from_mode; intermediate != VOIDmode;
intermediate = GET_MODE_WIDER_MODE (intermediate))
if (((can_extend_p (to_mode, intermediate, unsignedp)
!= CODE_FOR_nothing)
|| (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (intermediate)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (to_mode),
GET_MODE_BITSIZE (intermediate))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& (can_extend_p (intermediate, from_mode, unsignedp)
!= CODE_FOR_nothing))
{
convert_move (to, convert_to_mode (intermediate, from,
unsignedp), unsignedp);
return;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* No suitable intermediate mode.
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2002-02-01 18:16:02 +00:00
Generate what we need with shifts. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
shift_amount = build_int_2 (GET_MODE_BITSIZE (to_mode)
- GET_MODE_BITSIZE (from_mode), 0);
from = gen_lowpart (to_mode, force_reg (from_mode, from));
tmp = expand_shift (LSHIFT_EXPR, to_mode, from, shift_amount,
to, unsignedp);
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2002-02-01 18:16:02 +00:00
tmp = expand_shift (RSHIFT_EXPR, to_mode, tmp, shift_amount,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
to, unsignedp);
if (tmp != to)
emit_move_insn (to, tmp);
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Support special truncate insns for certain modes. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (from_mode == DImode && to_mode == SImode)
{
#ifdef HAVE_truncdisi2
if (HAVE_truncdisi2)
{
emit_unop_insn (CODE_FOR_truncdisi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == DImode && to_mode == HImode)
{
#ifdef HAVE_truncdihi2
if (HAVE_truncdihi2)
{
emit_unop_insn (CODE_FOR_truncdihi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == DImode && to_mode == QImode)
{
#ifdef HAVE_truncdiqi2
if (HAVE_truncdiqi2)
{
emit_unop_insn (CODE_FOR_truncdiqi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == SImode && to_mode == HImode)
{
#ifdef HAVE_truncsihi2
if (HAVE_truncsihi2)
{
emit_unop_insn (CODE_FOR_truncsihi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == SImode && to_mode == QImode)
{
#ifdef HAVE_truncsiqi2
if (HAVE_truncsiqi2)
{
emit_unop_insn (CODE_FOR_truncsiqi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == HImode && to_mode == QImode)
{
#ifdef HAVE_trunchiqi2
if (HAVE_trunchiqi2)
{
emit_unop_insn (CODE_FOR_trunchiqi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == TImode && to_mode == DImode)
{
#ifdef HAVE_trunctidi2
if (HAVE_trunctidi2)
{
emit_unop_insn (CODE_FOR_trunctidi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == TImode && to_mode == SImode)
{
#ifdef HAVE_trunctisi2
if (HAVE_trunctisi2)
{
emit_unop_insn (CODE_FOR_trunctisi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == TImode && to_mode == HImode)
{
#ifdef HAVE_trunctihi2
if (HAVE_trunctihi2)
{
emit_unop_insn (CODE_FOR_trunctihi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
if (from_mode == TImode && to_mode == QImode)
{
#ifdef HAVE_trunctiqi2
if (HAVE_trunctiqi2)
{
emit_unop_insn (CODE_FOR_trunctiqi2, to, from, UNKNOWN);
return;
}
#endif
convert_move (to, force_reg (from_mode, from), unsignedp);
return;
}
/* Handle truncation of volatile memrefs, and so on;
the things that couldn't be truncated directly,
and for which there was no special instruction. */
if (GET_MODE_BITSIZE (to_mode) < GET_MODE_BITSIZE (from_mode))
{
rtx temp = force_reg (to_mode, gen_lowpart (to_mode, from));
emit_move_insn (to, temp);
return;
}
/* Mode combination is not recognized. */
abort ();
}
/* Return an rtx for a value that would result
from converting X to mode MODE.
Both X and MODE may be floating, or both integer.
UNSIGNEDP is nonzero if X is an unsigned value.
This can be done by referring to a part of X in place
or by copying to a new temporary with conversion.
This function *must not* call protect_from_queue
except when putting X into an insn (in which case convert_move does it). */
rtx
convert_to_mode (mode, x, unsignedp)
enum machine_mode mode;
rtx x;
int unsignedp;
{
return convert_modes (mode, VOIDmode, x, unsignedp);
}
/* Return an rtx for a value that would result
from converting X from mode OLDMODE to mode MODE.
Both modes may be floating, or both integer.
UNSIGNEDP is nonzero if X is an unsigned value.
This can be done by referring to a part of X in place
or by copying to a new temporary with conversion.
You can give VOIDmode for OLDMODE, if you are sure X has a nonvoid mode.
This function *must not* call protect_from_queue
except when putting X into an insn (in which case convert_move does it). */
rtx
convert_modes (mode, oldmode, x, unsignedp)
enum machine_mode mode, oldmode;
rtx x;
int unsignedp;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If FROM is a SUBREG that indicates that we have already done at least
the required extension, strip it. */
if (GET_CODE (x) == SUBREG && SUBREG_PROMOTED_VAR_P (x)
&& GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))) >= GET_MODE_SIZE (mode)
&& SUBREG_PROMOTED_UNSIGNED_P (x) == unsignedp)
x = gen_lowpart (mode, x);
if (GET_MODE (x) != VOIDmode)
oldmode = GET_MODE (x);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mode == oldmode)
return x;
/* There is one case that we must handle specially: If we are converting
a CONST_INT into a mode whose size is twice HOST_BITS_PER_WIDE_INT and
we are to interpret the constant as unsigned, gen_lowpart will do
the wrong if the constant appears negative. What we want to do is
make the high-order word of the constant zero, not all ones. */
if (unsignedp && GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_BITSIZE (mode) == 2 * HOST_BITS_PER_WIDE_INT
&& GET_CODE (x) == CONST_INT && INTVAL (x) < 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
HOST_WIDE_INT val = INTVAL (x);
if (oldmode != VOIDmode
&& HOST_BITS_PER_WIDE_INT > GET_MODE_BITSIZE (oldmode))
{
int width = GET_MODE_BITSIZE (oldmode);
/* We need to zero extend VAL. */
val &= ((HOST_WIDE_INT) 1 << width) - 1;
}
return immed_double_const (val, (HOST_WIDE_INT) 0, mode);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* We can do this with a gen_lowpart if both desired and current modes
are integer, and this is either a constant integer, a register, or a
non-volatile MEM. Except for the constant case where MODE is no
wider than HOST_BITS_PER_WIDE_INT, we must be narrowing the operand. */
if ((GET_CODE (x) == CONST_INT
&& GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT)
|| (GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_CLASS (oldmode) == MODE_INT
&& (GET_CODE (x) == CONST_DOUBLE
|| (GET_MODE_SIZE (mode) <= GET_MODE_SIZE (oldmode)
&& ((GET_CODE (x) == MEM && ! MEM_VOLATILE_P (x)
&& direct_load[(int) mode])
|| (GET_CODE (x) == REG
&& TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode),
GET_MODE_BITSIZE (GET_MODE (x)))))))))
{
/* ?? If we don't know OLDMODE, we have to assume here that
X does not need sign- or zero-extension. This may not be
the case, but it's the best we can do. */
if (GET_CODE (x) == CONST_INT && oldmode != VOIDmode
&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (oldmode))
{
HOST_WIDE_INT val = INTVAL (x);
int width = GET_MODE_BITSIZE (oldmode);
/* We must sign or zero-extend in this case. Start by
zero-extending, then sign extend if we need to. */
val &= ((HOST_WIDE_INT) 1 << width) - 1;
if (! unsignedp
&& (val & ((HOST_WIDE_INT) 1 << (width - 1))))
val |= (HOST_WIDE_INT) (-1) << width;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return GEN_INT (trunc_int_for_mode (val, mode));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return gen_lowpart (mode, x);
}
temp = gen_reg_rtx (mode);
convert_move (temp, x, unsignedp);
return temp;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* This macro is used to determine what the largest unit size that
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
move_by_pieces can use is. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* MOVE_MAX_PIECES is the number of bytes at a time which we can
move efficiently, as opposed to MOVE_MAX which is the maximum
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
number of bytes we can move with a single instruction. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifndef MOVE_MAX_PIECES
#define MOVE_MAX_PIECES MOVE_MAX
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Generate several move instructions to copy LEN bytes from block FROM to
block TO. (These are MEM rtx's with BLKmode). The caller must pass FROM
and TO through protect_from_queue before calling.
If PUSH_ROUNDING is defined and TO is NULL, emit_single_push_insn is
used to push FROM to the stack.
ALIGN is maximum alignment we can assume. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
void
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
move_by_pieces (to, from, len, align)
rtx to, from;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT len;
unsigned int align;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
struct move_by_pieces data;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx to_addr, from_addr = XEXP (from, 0);
unsigned int max_size = MOVE_MAX_PIECES + 1;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
enum machine_mode mode = VOIDmode, tmode;
enum insn_code icode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
data.offset = 0;
data.from_addr = from_addr;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (to)
{
to_addr = XEXP (to, 0);
data.to = to;
data.autinc_to
= (GET_CODE (to_addr) == PRE_INC || GET_CODE (to_addr) == PRE_DEC
|| GET_CODE (to_addr) == POST_INC || GET_CODE (to_addr) == POST_DEC);
data.reverse
= (GET_CODE (to_addr) == PRE_DEC || GET_CODE (to_addr) == POST_DEC);
}
else
{
to_addr = NULL_RTX;
data.to = NULL_RTX;
data.autinc_to = 1;
#ifdef STACK_GROWS_DOWNWARD
data.reverse = 1;
#else
data.reverse = 0;
#endif
}
data.to_addr = to_addr;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
data.from = from;
data.autinc_from
= (GET_CODE (from_addr) == PRE_INC || GET_CODE (from_addr) == PRE_DEC
|| GET_CODE (from_addr) == POST_INC
|| GET_CODE (from_addr) == POST_DEC);
data.explicit_inc_from = 0;
data.explicit_inc_to = 0;
if (data.reverse) data.offset = len;
data.len = len;
/* If copying requires more than two move insns,
copy addresses to registers (to make displacements shorter)
and use post-increment if available. */
if (!(data.autinc_from && data.autinc_to)
&& move_by_pieces_ninsns (len, align) > 2)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Find the mode of the largest move... */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) < max_size)
mode = tmode;
if (USE_LOAD_PRE_DECREMENT (mode) && data.reverse && ! data.autinc_from)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
data.from_addr = copy_addr_to_reg (plus_constant (from_addr, len));
data.autinc_from = 1;
data.explicit_inc_from = -1;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (USE_LOAD_POST_INCREMENT (mode) && ! data.autinc_from)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
data.from_addr = copy_addr_to_reg (from_addr);
data.autinc_from = 1;
data.explicit_inc_from = 1;
}
if (!data.autinc_from && CONSTANT_P (from_addr))
data.from_addr = copy_addr_to_reg (from_addr);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (USE_STORE_PRE_DECREMENT (mode) && data.reverse && ! data.autinc_to)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
data.to_addr = copy_addr_to_reg (plus_constant (to_addr, len));
data.autinc_to = 1;
data.explicit_inc_to = -1;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (USE_STORE_POST_INCREMENT (mode) && ! data.reverse && ! data.autinc_to)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
data.to_addr = copy_addr_to_reg (to_addr);
data.autinc_to = 1;
data.explicit_inc_to = 1;
}
if (!data.autinc_to && CONSTANT_P (to_addr))
data.to_addr = copy_addr_to_reg (to_addr);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! SLOW_UNALIGNED_ACCESS (word_mode, align)
|| align > MOVE_MAX * BITS_PER_UNIT || align >= BIGGEST_ALIGNMENT)
align = MOVE_MAX * BITS_PER_UNIT;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* First move what we can in the largest integer mode, then go to
successively smaller modes. */
while (max_size > 1)
{
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) < max_size)
mode = tmode;
if (mode == VOIDmode)
break;
icode = mov_optab->handlers[(int) mode].insn_code;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (icode != CODE_FOR_nothing && align >= GET_MODE_ALIGNMENT (mode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
move_by_pieces_1 (GEN_FCN (icode), mode, &data);
max_size = GET_MODE_SIZE (mode);
}
/* The code above should have handled everything. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (data.len > 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
abort ();
}
/* Return number of insns required to move L bytes by pieces.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ALIGN (in bits) is maximum alignment we can assume. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static unsigned HOST_WIDE_INT
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
move_by_pieces_ninsns (l, align)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT l;
unsigned int align;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT n_insns = 0;
unsigned HOST_WIDE_INT max_size = MOVE_MAX + 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! SLOW_UNALIGNED_ACCESS (word_mode, align)
|| align > MOVE_MAX * BITS_PER_UNIT || align >= BIGGEST_ALIGNMENT)
align = MOVE_MAX * BITS_PER_UNIT;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
while (max_size > 1)
{
enum machine_mode mode = VOIDmode, tmode;
enum insn_code icode;
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) < max_size)
mode = tmode;
if (mode == VOIDmode)
break;
icode = mov_optab->handlers[(int) mode].insn_code;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (icode != CODE_FOR_nothing && align >= GET_MODE_ALIGNMENT (mode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
n_insns += l / GET_MODE_SIZE (mode), l %= GET_MODE_SIZE (mode);
max_size = GET_MODE_SIZE (mode);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (l)
abort ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return n_insns;
}
/* Subroutine of move_by_pieces. Move as many bytes as appropriate
with move instructions for mode MODE. GENFUN is the gen_... function
to make a move insn for that mode. DATA has all the other info. */
static void
move_by_pieces_1 (genfun, mode, data)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx (*genfun) PARAMS ((rtx, ...));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode;
struct move_by_pieces *data;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int size = GET_MODE_SIZE (mode);
rtx to1 = NULL_RTX, from1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
while (data->len >= size)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->reverse)
data->offset -= size;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->to)
{
if (data->autinc_to)
to1 = adjust_automodify_address (data->to, mode, data->to_addr,
data->offset);
else
to1 = adjust_address (data->to, mode, data->offset);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->autinc_from)
from1 = adjust_automodify_address (data->from, mode, data->from_addr,
data->offset);
else
from1 = adjust_address (data->from, mode, data->offset);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (HAVE_PRE_DECREMENT && data->explicit_inc_to < 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_insn (gen_add2_insn (data->to_addr,
GEN_INT (-(HOST_WIDE_INT)size)));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (HAVE_PRE_DECREMENT && data->explicit_inc_from < 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_insn (gen_add2_insn (data->from_addr,
GEN_INT (-(HOST_WIDE_INT)size)));
if (data->to)
emit_insn ((*genfun) (to1, from1));
else
{
#ifdef PUSH_ROUNDING
emit_single_push_insn (mode, from1, NULL);
#else
abort ();
#endif
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (HAVE_POST_INCREMENT && data->explicit_inc_to > 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_insn (gen_add2_insn (data->to_addr, GEN_INT (size)));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (HAVE_POST_INCREMENT && data->explicit_inc_from > 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_insn (gen_add2_insn (data->from_addr, GEN_INT (size)));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! data->reverse)
data->offset += size;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
data->len -= size;
}
}
/* Emit code to move a block Y to a block X.
This may be done with string-move instructions,
with multiple scalar move instructions, or with a library call.
Both X and Y must be MEM rtx's (perhaps inside VOLATILE)
with mode BLKmode.
SIZE is an rtx that says how long they are.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ALIGN is the maximum alignment we can assume they have.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Return the address of the new block, if memcpy is called and returns it,
0 otherwise. */
rtx
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_block_move (x, y, size)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx x, y;
rtx size;
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx retval = 0;
#ifdef TARGET_MEM_FUNCTIONS
static tree fn;
tree call_expr, arg_list;
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int align = MIN (MEM_ALIGN (x), MEM_ALIGN (y));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_MODE (x) != BLKmode)
abort ();
if (GET_MODE (y) != BLKmode)
abort ();
x = protect_from_queue (x, 1);
y = protect_from_queue (y, 0);
size = protect_from_queue (size, 0);
if (GET_CODE (x) != MEM)
abort ();
if (GET_CODE (y) != MEM)
abort ();
if (size == 0)
abort ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (GET_CODE (size) == CONST_INT && MOVE_BY_PIECES_P (INTVAL (size), align))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
move_by_pieces (x, y, INTVAL (size), align);
else
{
/* Try the most limited insn first, because there's no point
including more than one in the machine description unless
the more limited one has some advantage. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx opalign = GEN_INT (align / BITS_PER_UNIT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Since this is a move insn, we don't care about volatility. */
volatile_ok = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (mode = GET_CLASS_NARROWEST_MODE (MODE_INT); mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
{
enum insn_code code = movstr_optab[(int) mode];
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
insn_operand_predicate_fn pred;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (code != CODE_FOR_nothing
/* We don't need MODE to be narrower than BITS_PER_HOST_WIDE_INT
here because if SIZE is less than the mode mask, as it is
returned by the macro, it will definitely be less than the
actual mode mask. */
&& ((GET_CODE (size) == CONST_INT
&& ((unsigned HOST_WIDE_INT) INTVAL (size)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
<= (GET_MODE_MASK (mode) >> 1)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| GET_MODE_BITSIZE (mode) >= BITS_PER_WORD)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& ((pred = insn_data[(int) code].operand[0].predicate) == 0
|| (*pred) (x, BLKmode))
&& ((pred = insn_data[(int) code].operand[1].predicate) == 0
|| (*pred) (y, BLKmode))
&& ((pred = insn_data[(int) code].operand[3].predicate) == 0
|| (*pred) (opalign, VOIDmode)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx op2;
rtx last = get_last_insn ();
rtx pat;
op2 = convert_to_mode (mode, size, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
pred = insn_data[(int) code].operand[2].predicate;
if (pred != 0 && ! (*pred) (op2, mode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op2 = copy_to_mode_reg (mode, op2);
pat = GEN_FCN ((int) code) (x, y, op2, opalign);
if (pat)
{
emit_insn (pat);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
volatile_ok = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
delete_insns_since (last);
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
volatile_ok = 0;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* X, Y, or SIZE may have been passed through protect_from_queue.
It is unsafe to save the value generated by protect_from_queue
and reuse it later. Consider what happens if emit_queue is
called before the return value from protect_from_queue is used.
Expansion of the CALL_EXPR below will call emit_queue before
we are finished emitting RTL for argument setup. So if we are
not careful we could get the wrong value for an argument.
To avoid this problem we go ahead and emit code to copy X, Y &
SIZE into new pseudos. We can then place those new pseudos
into an RTL_EXPR and use them later, even after a call to
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_queue.
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Note this is not strictly needed for library calls since they
do not call emit_queue before loading their arguments. However,
we may need to have library calls call emit_queue in the future
since failing to do so could cause problems for targets which
define SMALL_REGISTER_CLASSES and pass arguments in registers. */
x = copy_to_mode_reg (Pmode, XEXP (x, 0));
y = copy_to_mode_reg (Pmode, XEXP (y, 0));
#ifdef TARGET_MEM_FUNCTIONS
size = copy_to_mode_reg (TYPE_MODE (sizetype), size);
#else
size = convert_to_mode (TYPE_MODE (integer_type_node), size,
TREE_UNSIGNED (integer_type_node));
size = copy_to_mode_reg (TYPE_MODE (integer_type_node), size);
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef TARGET_MEM_FUNCTIONS
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* It is incorrect to use the libcall calling conventions to call
memcpy in this context.
This could be a user call to memcpy and the user may wish to
examine the return value from memcpy.
For targets where libcalls and normal calls have different conventions
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for returning pointers, we could end up generating incorrect code.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
So instead of using a libcall sequence we build up a suitable
CALL_EXPR and expand the call in the normal fashion. */
if (fn == NULL_TREE)
{
tree fntype;
/* This was copied from except.c, I don't know if all this is
necessary in this context or not. */
fn = get_identifier ("memcpy");
fntype = build_pointer_type (void_type_node);
fntype = build_function_type (fntype, NULL_TREE);
fn = build_decl (FUNCTION_DECL, fn, fntype);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ggc_add_tree_root (&fn, 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
DECL_EXTERNAL (fn) = 1;
TREE_PUBLIC (fn) = 1;
DECL_ARTIFICIAL (fn) = 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TREE_NOTHROW (fn) = 1;
make_decl_rtl (fn, NULL);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
assemble_external (fn);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* We need to make an argument list for the function call.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
memcpy has three arguments, the first two are void * addresses and
the last is a size_t byte count for the copy. */
arg_list
= build_tree_list (NULL_TREE,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
make_tree (build_pointer_type (void_type_node), x));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TREE_CHAIN (arg_list)
= build_tree_list (NULL_TREE,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
make_tree (build_pointer_type (void_type_node), y));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TREE_CHAIN (TREE_CHAIN (arg_list))
= build_tree_list (NULL_TREE, make_tree (sizetype, size));
TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (arg_list))) = NULL_TREE;
/* Now we have to build up the CALL_EXPR itself. */
call_expr = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (fn)), fn);
call_expr = build (CALL_EXPR, TREE_TYPE (TREE_TYPE (fn)),
call_expr, arg_list, NULL_TREE);
TREE_SIDE_EFFECTS (call_expr) = 1;
retval = expand_expr (call_expr, NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (bcopy_libfunc, LCT_NORMAL,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
VOIDmode, 3, y, Pmode, x, Pmode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
convert_to_mode (TYPE_MODE (integer_type_node), size,
TREE_UNSIGNED (integer_type_node)),
TYPE_MODE (integer_type_node));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we are initializing a readonly value, show the above call
clobbered it. Otherwise, a load from it may erroneously be hoisted
from a loop. */
if (RTX_UNCHANGING_P (x))
emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return retval;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Copy all or part of a value X into registers starting at REGNO.
The number of registers to be filled is NREGS. */
void
move_block_to_reg (regno, x, nregs, mode)
int regno;
rtx x;
int nregs;
enum machine_mode mode;
{
int i;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef HAVE_load_multiple
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx pat;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx last;
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (nregs == 0)
return;
if (CONSTANT_P (x) && ! LEGITIMATE_CONSTANT_P (x))
x = validize_mem (force_const_mem (mode, x));
/* See if the machine can do this with a load multiple insn. */
#ifdef HAVE_load_multiple
if (HAVE_load_multiple)
{
last = get_last_insn ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pat = gen_load_multiple (gen_rtx_REG (word_mode, regno), x,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GEN_INT (nregs));
if (pat)
{
emit_insn (pat);
return;
}
else
delete_insns_since (last);
}
#endif
for (i = 0; i < nregs; i++)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_move_insn (gen_rtx_REG (word_mode, regno + i),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
operand_subword_force (x, i, mode));
}
/* Copy all or part of a BLKmode value X out of registers starting at REGNO.
The number of registers to be filled is NREGS. SIZE indicates the number
of bytes in the object X. */
void
move_block_from_reg (regno, x, nregs, size)
int regno;
rtx x;
int nregs;
int size;
{
int i;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef HAVE_store_multiple
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx pat;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx last;
#endif
enum machine_mode mode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (nregs == 0)
return;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If SIZE is that of a mode no bigger than a word, just use that
mode's store operation. */
if (size <= UNITS_PER_WORD
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (mode = mode_for_size (size * BITS_PER_UNIT, MODE_INT, 0)) != BLKmode
&& !FUNCTION_ARG_REG_LITTLE_ENDIAN)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (adjust_address (x, mode, 0), gen_rtx_REG (mode, regno));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Blocks smaller than a word on a BYTES_BIG_ENDIAN machine must be aligned
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
to the left before storing to memory. Note that the previous test
doesn't handle all cases (e.g. SIZE == 3). */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (size < UNITS_PER_WORD
&& BYTES_BIG_ENDIAN
&& !FUNCTION_ARG_REG_LITTLE_ENDIAN)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx tem = operand_subword (x, 0, 1, BLKmode);
rtx shift;
if (tem == 0)
abort ();
shift = expand_shift (LSHIFT_EXPR, word_mode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_REG (word_mode, regno),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
build_int_2 ((UNITS_PER_WORD - size)
* BITS_PER_UNIT, 0), NULL_RTX, 0);
emit_move_insn (tem, shift);
return;
}
/* See if the machine can do this with a store multiple insn. */
#ifdef HAVE_store_multiple
if (HAVE_store_multiple)
{
last = get_last_insn ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pat = gen_store_multiple (x, gen_rtx_REG (word_mode, regno),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GEN_INT (nregs));
if (pat)
{
emit_insn (pat);
return;
}
else
delete_insns_since (last);
}
#endif
for (i = 0; i < nregs; i++)
{
rtx tem = operand_subword (x, i, 1, BLKmode);
if (tem == 0)
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_move_insn (tem, gen_rtx_REG (word_mode, regno + i));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Emit code to move a block SRC to a block DST, where DST is non-consecutive
registers represented by a PARALLEL. SSIZE represents the total size of
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
block SRC in bytes, or -1 if not known. */
/* ??? If SSIZE % UNITS_PER_WORD != 0, we make the blatant assumption that
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
the balance will be in what would be the low-order memory addresses, i.e.
left justified for big endian, right justified for little endian. This
happens to be true for the targets currently using this support. If this
ever changes, a new target macro along the lines of FUNCTION_ARG_PADDING
would be needed. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_group_load (dst, orig_src, ssize)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx dst, orig_src;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int ssize;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx *tmps, src;
int start, i;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (dst) != PARALLEL)
abort ();
/* Check for a NULL entry, used to indicate that the parameter goes
both on the stack and in registers. */
if (XEXP (XVECEXP (dst, 0, 0), 0))
start = 0;
else
start = 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tmps = (rtx *) alloca (sizeof (rtx) * XVECLEN (dst, 0));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Process the pieces. */
for (i = start; i < XVECLEN (dst, 0); i++)
{
enum machine_mode mode = GET_MODE (XEXP (XVECEXP (dst, 0, i), 0));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bytepos = INTVAL (XEXP (XVECEXP (dst, 0, i), 1));
unsigned int bytelen = GET_MODE_SIZE (mode);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int shift = 0;
/* Handle trailing fragments that run over the size of the struct. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (ssize >= 0 && bytepos + (HOST_WIDE_INT) bytelen > ssize)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
shift = (bytelen - (ssize - bytepos)) * BITS_PER_UNIT;
bytelen = ssize - bytepos;
if (bytelen <= 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
abort ();
}
/* If we won't be loading directly from memory, protect the real source
from strange tricks we might play; but make sure that the source can
be loaded directly into the destination. */
src = orig_src;
if (GET_CODE (orig_src) != MEM
&& (!CONSTANT_P (orig_src)
|| (GET_MODE (orig_src) != mode
&& GET_MODE (orig_src) != VOIDmode)))
{
if (GET_MODE (orig_src) == VOIDmode)
src = gen_reg_rtx (mode);
else
src = gen_reg_rtx (GET_MODE (orig_src));
emit_move_insn (src, orig_src);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
/* Optimize the access just a bit. */
if (GET_CODE (src) == MEM
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& MEM_ALIGN (src) >= GET_MODE_ALIGNMENT (mode)
&& bytepos * BITS_PER_UNIT % GET_MODE_ALIGNMENT (mode) == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& bytelen == GET_MODE_SIZE (mode))
{
tmps[i] = gen_reg_rtx (mode);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (tmps[i], adjust_address (src, mode, bytepos));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (GET_CODE (src) == CONCAT)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (bytepos == 0
&& bytelen == GET_MODE_SIZE (GET_MODE (XEXP (src, 0))))
tmps[i] = XEXP (src, 0);
else if (bytepos == (HOST_WIDE_INT) GET_MODE_SIZE (GET_MODE (XEXP (src, 0)))
&& bytelen == GET_MODE_SIZE (GET_MODE (XEXP (src, 1))))
tmps[i] = XEXP (src, 1);
else if (bytepos == 0)
{
rtx mem = assign_stack_temp (GET_MODE (src),
GET_MODE_SIZE (GET_MODE (src)), 0);
emit_move_insn (mem, src);
tmps[i] = adjust_address (mem, mode, 0);
}
else
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (CONSTANT_P (src)
|| (GET_CODE (src) == REG && GET_MODE (src) == mode))
tmps[i] = src;
else
tmps[i] = extract_bit_field (src, bytelen * BITS_PER_UNIT,
bytepos * BITS_PER_UNIT, 1, NULL_RTX,
mode, mode, ssize);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (BYTES_BIG_ENDIAN && shift)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_binop (mode, ashl_optab, tmps[i], GEN_INT (shift),
tmps[i], 0, OPTAB_WIDEN);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_queue ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Copy the extracted pieces into the proper (probable) hard regs. */
for (i = start; i < XVECLEN (dst, 0); i++)
emit_move_insn (XEXP (XVECEXP (dst, 0, i), 0), tmps[i]);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Emit code to move a block SRC to a block DST, where SRC is non-consecutive
registers represented by a PARALLEL. SSIZE represents the total size of
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
block DST, or -1 if not known. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_group_store (orig_dst, src, ssize)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx orig_dst, src;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int ssize;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx *tmps, dst;
int start, i;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (src) != PARALLEL)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Check for a NULL entry, used to indicate that the parameter goes
both on the stack and in registers. */
if (XEXP (XVECEXP (src, 0, 0), 0))
start = 0;
else
start = 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tmps = (rtx *) alloca (sizeof (rtx) * XVECLEN (src, 0));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Copy the (probable) hard regs into pseudos. */
for (i = start; i < XVECLEN (src, 0); i++)
{
rtx reg = XEXP (XVECEXP (src, 0, i), 0);
tmps[i] = gen_reg_rtx (GET_MODE (reg));
emit_move_insn (tmps[i], reg);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_queue ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we won't be storing directly into memory, protect the real destination
from strange tricks we might play. */
dst = orig_dst;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (GET_CODE (dst) == PARALLEL)
{
rtx temp;
/* We can get a PARALLEL dst if there is a conditional expression in
a return statement. In that case, the dst and src are the same,
so no action is necessary. */
if (rtx_equal_p (dst, src))
return;
/* It is unclear if we can ever reach here, but we may as well handle
it. Allocate a temporary, and split this into a store/load to/from
the temporary. */
temp = assign_stack_temp (GET_MODE (dst), ssize, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_group_store (temp, src, ssize);
emit_group_load (dst, temp, ssize);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
return;
}
else if (GET_CODE (dst) != MEM)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
dst = gen_reg_rtx (GET_MODE (orig_dst));
/* Make life a bit easier for combine. */
emit_move_insn (dst, const0_rtx);
}
/* Process the pieces. */
for (i = start; i < XVECLEN (src, 0); i++)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bytepos = INTVAL (XEXP (XVECEXP (src, 0, i), 1));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode = GET_MODE (tmps[i]);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int bytelen = GET_MODE_SIZE (mode);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Handle trailing fragments that run over the size of the struct. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (ssize >= 0 && bytepos + (HOST_WIDE_INT) bytelen > ssize)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
if (BYTES_BIG_ENDIAN)
{
int shift = (bytelen - (ssize - bytepos)) * BITS_PER_UNIT;
expand_binop (mode, ashr_optab, tmps[i], GEN_INT (shift),
tmps[i], 0, OPTAB_WIDEN);
}
bytelen = ssize - bytepos;
}
/* Optimize the access just a bit. */
if (GET_CODE (dst) == MEM
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& MEM_ALIGN (dst) >= GET_MODE_ALIGNMENT (mode)
&& bytepos * BITS_PER_UNIT % GET_MODE_ALIGNMENT (mode) == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& bytelen == GET_MODE_SIZE (mode))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (adjust_address (dst, mode, bytepos), tmps[i]);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_bit_field (dst, bytelen * BITS_PER_UNIT, bytepos * BITS_PER_UNIT,
mode, tmps[i], ssize);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_queue ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Copy from the pseudo into the (probable) hard reg. */
if (GET_CODE (dst) == REG)
emit_move_insn (orig_dst, dst);
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* Generate code to copy a BLKmode object of TYPE out of a
set of registers starting with SRCREG into TGTBLK. If TGTBLK
is null, a stack temporary is created. TGTBLK is returned.
The primary purpose of this routine is to handle functions
that return BLKmode structures in registers. Some machines
(the PA for example) want to return all small structures
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
in registers regardless of the structure's alignment. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
rtx
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
copy_blkmode_from_reg (tgtblk, srcreg, type)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
rtx tgtblk;
rtx srcreg;
tree type;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT bytes = int_size_in_bytes (type);
rtx src = NULL, dst = NULL;
unsigned HOST_WIDE_INT bitsize = MIN (TYPE_ALIGN (type), BITS_PER_WORD);
unsigned HOST_WIDE_INT bitpos, xbitpos, big_endian_correction = 0;
if (tgtblk == 0)
{
tgtblk = assign_temp (build_qualified_type (type,
(TYPE_QUALS (type)
| TYPE_QUAL_CONST)),
0, 1, 1);
preserve_temp_slots (tgtblk);
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* This code assumes srcreg is at least a full word. If it isn't, copy it
into a new pseudo which is a full word.
If FUNCTION_ARG_REG_LITTLE_ENDIAN is set and convert_to_mode does a copy,
the wrong part of the register gets copied so we fake a type conversion
in place. */
if (GET_MODE (srcreg) != BLKmode
&& GET_MODE_SIZE (GET_MODE (srcreg)) < UNITS_PER_WORD)
{
if (FUNCTION_ARG_REG_LITTLE_ENDIAN)
srcreg = simplify_gen_subreg (word_mode, srcreg, GET_MODE (srcreg), 0);
else
srcreg = convert_to_mode (word_mode, srcreg, TREE_UNSIGNED (type));
}
/* Structures whose size is not a multiple of a word are aligned
to the least significant byte (to the right). On a BYTES_BIG_ENDIAN
machine, this means we must skip the empty high order bytes when
calculating the bit offset. */
if (BYTES_BIG_ENDIAN
&& !FUNCTION_ARG_REG_LITTLE_ENDIAN
&& bytes % UNITS_PER_WORD)
big_endian_correction
= (BITS_PER_WORD - ((bytes % UNITS_PER_WORD) * BITS_PER_UNIT));
/* Copy the structure BITSIZE bites at a time.
We could probably emit more efficient code for machines which do not use
strict alignment, but it doesn't seem worth the effort at the current
time. */
for (bitpos = 0, xbitpos = big_endian_correction;
bitpos < bytes * BITS_PER_UNIT;
bitpos += bitsize, xbitpos += bitsize)
{
/* We need a new source operand each time xbitpos is on a
word boundary and when xbitpos == big_endian_correction
(the first time through). */
if (xbitpos % BITS_PER_WORD == 0
|| xbitpos == big_endian_correction)
src = operand_subword_force (srcreg, xbitpos / BITS_PER_WORD,
GET_MODE (srcreg));
/* We need a new destination operand each time bitpos is on
a word boundary. */
if (bitpos % BITS_PER_WORD == 0)
dst = operand_subword (tgtblk, bitpos / BITS_PER_WORD, 1, BLKmode);
/* Use xbitpos for the source extraction (right justified) and
xbitpos for the destination store (left justified). */
store_bit_field (dst, bitsize, bitpos % BITS_PER_WORD, word_mode,
extract_bit_field (src, bitsize,
xbitpos % BITS_PER_WORD, 1,
NULL_RTX, word_mode, word_mode,
BITS_PER_WORD),
BITS_PER_WORD);
}
return tgtblk;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Add a USE expression for REG to the (possibly empty) list pointed
to by CALL_FUSAGE. REG must denote a hard register. */
void
use_reg (call_fusage, reg)
rtx *call_fusage, reg;
{
if (GET_CODE (reg) != REG
|| REGNO (reg) >= FIRST_PSEUDO_REGISTER)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
*call_fusage
= gen_rtx_EXPR_LIST (VOIDmode,
gen_rtx_USE (VOIDmode, reg), *call_fusage);
}
/* Add USE expressions to *CALL_FUSAGE for each of NREGS consecutive regs,
starting at REGNO. All of these registers must be hard registers. */
void
use_regs (call_fusage, regno, nregs)
rtx *call_fusage;
int regno;
int nregs;
{
int i;
if (regno + nregs > FIRST_PSEUDO_REGISTER)
abort ();
for (i = 0; i < nregs; i++)
use_reg (call_fusage, gen_rtx_REG (reg_raw_mode[regno + i], regno + i));
}
/* Add USE expressions to *CALL_FUSAGE for each REG contained in the
PARALLEL REGS. This is for calls that pass values in multiple
non-contiguous locations. The Irix 6 ABI has examples of this. */
void
use_group_regs (call_fusage, regs)
rtx *call_fusage;
rtx regs;
{
int i;
for (i = 0; i < XVECLEN (regs, 0); i++)
{
rtx reg = XEXP (XVECEXP (regs, 0, i), 0);
/* A NULL entry means the parameter goes both on the stack and in
registers. This can also be a MEM for targets that pass values
partially on the stack and partially in registers. */
if (reg != 0 && GET_CODE (reg) == REG)
use_reg (call_fusage, reg);
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int
can_store_by_pieces (len, constfun, constfundata, align)
unsigned HOST_WIDE_INT len;
rtx (*constfun) PARAMS ((PTR, HOST_WIDE_INT, enum machine_mode));
PTR constfundata;
unsigned int align;
{
unsigned HOST_WIDE_INT max_size, l;
HOST_WIDE_INT offset = 0;
enum machine_mode mode, tmode;
enum insn_code icode;
int reverse;
rtx cst;
if (! MOVE_BY_PIECES_P (len, align))
return 0;
if (! SLOW_UNALIGNED_ACCESS (word_mode, align)
|| align > MOVE_MAX * BITS_PER_UNIT || align >= BIGGEST_ALIGNMENT)
align = MOVE_MAX * BITS_PER_UNIT;
/* We would first store what we can in the largest integer mode, then go to
successively smaller modes. */
for (reverse = 0;
reverse <= (HAVE_PRE_DECREMENT || HAVE_POST_DECREMENT);
reverse++)
{
l = len;
mode = VOIDmode;
max_size = MOVE_MAX_PIECES + 1;
while (max_size > 1)
{
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) < max_size)
mode = tmode;
if (mode == VOIDmode)
break;
icode = mov_optab->handlers[(int) mode].insn_code;
if (icode != CODE_FOR_nothing
&& align >= GET_MODE_ALIGNMENT (mode))
{
unsigned int size = GET_MODE_SIZE (mode);
while (l >= size)
{
if (reverse)
offset -= size;
cst = (*constfun) (constfundata, offset, mode);
if (!LEGITIMATE_CONSTANT_P (cst))
return 0;
if (!reverse)
offset += size;
l -= size;
}
}
max_size = GET_MODE_SIZE (mode);
}
/* The code above should have handled everything. */
if (l != 0)
abort ();
}
return 1;
}
/* Generate several move instructions to store LEN bytes generated by
CONSTFUN to block TO. (A MEM rtx with BLKmode). CONSTFUNDATA is a
pointer which will be passed as argument in every CONSTFUN call.
ALIGN is maximum alignment we can assume. */
void
store_by_pieces (to, len, constfun, constfundata, align)
rtx to;
unsigned HOST_WIDE_INT len;
rtx (*constfun) PARAMS ((PTR, HOST_WIDE_INT, enum machine_mode));
PTR constfundata;
unsigned int align;
{
struct store_by_pieces data;
if (! MOVE_BY_PIECES_P (len, align))
abort ();
to = protect_from_queue (to, 1);
data.constfun = constfun;
data.constfundata = constfundata;
data.len = len;
data.to = to;
store_by_pieces_1 (&data, align);
}
/* Generate several move instructions to clear LEN bytes of block TO. (A MEM
rtx with BLKmode). The caller must pass TO through protect_from_queue
before calling. ALIGN is maximum alignment we can assume. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static void
clear_by_pieces (to, len, align)
rtx to;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT len;
unsigned int align;
{
struct store_by_pieces data;
data.constfun = clear_by_pieces_1;
data.constfundata = NULL;
data.len = len;
data.to = to;
store_by_pieces_1 (&data, align);
}
/* Callback routine for clear_by_pieces.
Return const0_rtx unconditionally. */
static rtx
clear_by_pieces_1 (data, offset, mode)
PTR data ATTRIBUTE_UNUSED;
HOST_WIDE_INT offset ATTRIBUTE_UNUSED;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
return const0_rtx;
}
/* Subroutine of clear_by_pieces and store_by_pieces.
Generate several move instructions to store LEN bytes of block TO. (A MEM
rtx with BLKmode). The caller must pass TO through protect_from_queue
before calling. ALIGN is maximum alignment we can assume. */
static void
store_by_pieces_1 (data, align)
struct store_by_pieces *data;
unsigned int align;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx to_addr = XEXP (data->to, 0);
unsigned HOST_WIDE_INT max_size = MOVE_MAX_PIECES + 1;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
enum machine_mode mode = VOIDmode, tmode;
enum insn_code icode;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
data->offset = 0;
data->to_addr = to_addr;
data->autinc_to
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= (GET_CODE (to_addr) == PRE_INC || GET_CODE (to_addr) == PRE_DEC
|| GET_CODE (to_addr) == POST_INC || GET_CODE (to_addr) == POST_DEC);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
data->explicit_inc_to = 0;
data->reverse
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= (GET_CODE (to_addr) == PRE_DEC || GET_CODE (to_addr) == POST_DEC);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->reverse)
data->offset = data->len;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If storing requires more than two move insns,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
copy addresses to registers (to make displacements shorter)
and use post-increment if available. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!data->autinc_to
&& move_by_pieces_ninsns (data->len, align) > 2)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Determine the main mode we'll be using. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) < max_size)
mode = tmode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (USE_STORE_PRE_DECREMENT (mode) && data->reverse && ! data->autinc_to)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
data->to_addr = copy_addr_to_reg (plus_constant (to_addr, data->len));
data->autinc_to = 1;
data->explicit_inc_to = -1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (USE_STORE_POST_INCREMENT (mode) && ! data->reverse
&& ! data->autinc_to)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
data->to_addr = copy_addr_to_reg (to_addr);
data->autinc_to = 1;
data->explicit_inc_to = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if ( !data->autinc_to && CONSTANT_P (to_addr))
data->to_addr = copy_addr_to_reg (to_addr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! SLOW_UNALIGNED_ACCESS (word_mode, align)
|| align > MOVE_MAX * BITS_PER_UNIT || align >= BIGGEST_ALIGNMENT)
align = MOVE_MAX * BITS_PER_UNIT;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* First store what we can in the largest integer mode, then go to
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
successively smaller modes. */
while (max_size > 1)
{
for (tmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmode != VOIDmode; tmode = GET_MODE_WIDER_MODE (tmode))
if (GET_MODE_SIZE (tmode) < max_size)
mode = tmode;
if (mode == VOIDmode)
break;
icode = mov_optab->handlers[(int) mode].insn_code;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (icode != CODE_FOR_nothing && align >= GET_MODE_ALIGNMENT (mode))
store_by_pieces_2 (GEN_FCN (icode), mode, data);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
max_size = GET_MODE_SIZE (mode);
}
/* The code above should have handled everything. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->len != 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
abort ();
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Subroutine of store_by_pieces_1. Store as many bytes as appropriate
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
with move instructions for mode MODE. GENFUN is the gen_... function
to make a move insn for that mode. DATA has all the other info. */
static void
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_by_pieces_2 (genfun, mode, data)
rtx (*genfun) PARAMS ((rtx, ...));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
struct store_by_pieces *data;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int size = GET_MODE_SIZE (mode);
rtx to1, cst;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
while (data->len >= size)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->reverse)
data->offset -= size;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (data->autinc_to)
to1 = adjust_automodify_address (data->to, mode, data->to_addr,
data->offset);
else
to1 = adjust_address (data->to, mode, data->offset);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (HAVE_PRE_DECREMENT && data->explicit_inc_to < 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_insn (gen_add2_insn (data->to_addr,
GEN_INT (-(HOST_WIDE_INT) size)));
cst = (*data->constfun) (data->constfundata, data->offset, mode);
emit_insn ((*genfun) (to1, cst));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (HAVE_POST_INCREMENT && data->explicit_inc_to > 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_insn (gen_add2_insn (data->to_addr, GEN_INT (size)));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! data->reverse)
data->offset += size;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
data->len -= size;
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Write zeros through the storage of OBJECT. If OBJECT has BLKmode, SIZE is
its length in bytes. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
clear_storage (object, size)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx object;
rtx size;
{
#ifdef TARGET_MEM_FUNCTIONS
static tree fn;
tree call_expr, arg_list;
#endif
rtx retval = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int align = (GET_CODE (object) == MEM ? MEM_ALIGN (object)
: GET_MODE_ALIGNMENT (GET_MODE (object)));
/* If OBJECT is not BLKmode and SIZE is the same size as its mode,
just move a zero. Otherwise, do this a piece at a time. */
if (GET_MODE (object) != BLKmode
&& GET_CODE (size) == CONST_INT
&& GET_MODE_SIZE (GET_MODE (object)) == (unsigned int) INTVAL (size))
emit_move_insn (object, CONST0_RTX (GET_MODE (object)));
else
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
object = protect_from_queue (object, 1);
size = protect_from_queue (size, 0);
if (GET_CODE (size) == CONST_INT
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& MOVE_BY_PIECES_P (INTVAL (size), align))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
clear_by_pieces (object, INTVAL (size), align);
else
{
/* Try the most limited insn first, because there's no point
including more than one in the machine description unless
the more limited one has some advantage. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx opalign = GEN_INT (align / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode;
for (mode = GET_CLASS_NARROWEST_MODE (MODE_INT); mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
{
enum insn_code code = clrstr_optab[(int) mode];
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
insn_operand_predicate_fn pred;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (code != CODE_FOR_nothing
/* We don't need MODE to be narrower than
BITS_PER_HOST_WIDE_INT here because if SIZE is less than
the mode mask, as it is returned by the macro, it will
definitely be less than the actual mode mask. */
&& ((GET_CODE (size) == CONST_INT
&& ((unsigned HOST_WIDE_INT) INTVAL (size)
<= (GET_MODE_MASK (mode) >> 1)))
|| GET_MODE_BITSIZE (mode) >= BITS_PER_WORD)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& ((pred = insn_data[(int) code].operand[0].predicate) == 0
|| (*pred) (object, BLKmode))
&& ((pred = insn_data[(int) code].operand[2].predicate) == 0
|| (*pred) (opalign, VOIDmode)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
rtx op1;
rtx last = get_last_insn ();
rtx pat;
op1 = convert_to_mode (mode, size, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
pred = insn_data[(int) code].operand[1].predicate;
if (pred != 0 && ! (*pred) (op1, mode))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op1 = copy_to_mode_reg (mode, op1);
pat = GEN_FCN ((int) code) (object, op1, opalign);
if (pat)
{
emit_insn (pat);
return 0;
}
else
delete_insns_since (last);
}
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* OBJECT or SIZE may have been passed through protect_from_queue.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
It is unsafe to save the value generated by protect_from_queue
and reuse it later. Consider what happens if emit_queue is
called before the return value from protect_from_queue is used.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Expansion of the CALL_EXPR below will call emit_queue before
we are finished emitting RTL for argument setup. So if we are
not careful we could get the wrong value for an argument.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
To avoid this problem we go ahead and emit code to copy OBJECT
and SIZE into new pseudos. We can then place those new pseudos
into an RTL_EXPR and use them later, even after a call to
emit_queue.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Note this is not strictly needed for library calls since they
do not call emit_queue before loading their arguments. However,
we may need to have library calls call emit_queue in the future
since failing to do so could cause problems for targets which
define SMALL_REGISTER_CLASSES and pass arguments in registers. */
object = copy_to_mode_reg (Pmode, XEXP (object, 0));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifdef TARGET_MEM_FUNCTIONS
size = copy_to_mode_reg (TYPE_MODE (sizetype), size);
#else
size = convert_to_mode (TYPE_MODE (integer_type_node), size,
TREE_UNSIGNED (integer_type_node));
size = copy_to_mode_reg (TYPE_MODE (integer_type_node), size);
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifdef TARGET_MEM_FUNCTIONS
/* It is incorrect to use the libcall calling conventions to call
memset in this context.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
This could be a user call to memset and the user may wish to
examine the return value from memset.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
For targets where libcalls and normal calls have different
conventions for returning pointers, we could end up generating
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
incorrect code.
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
So instead of using a libcall sequence we build up a suitable
CALL_EXPR and expand the call in the normal fashion. */
if (fn == NULL_TREE)
{
tree fntype;
/* This was copied from except.c, I don't know if all this is
necessary in this context or not. */
fn = get_identifier ("memset");
fntype = build_pointer_type (void_type_node);
fntype = build_function_type (fntype, NULL_TREE);
fn = build_decl (FUNCTION_DECL, fn, fntype);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ggc_add_tree_root (&fn, 1);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
DECL_EXTERNAL (fn) = 1;
TREE_PUBLIC (fn) = 1;
DECL_ARTIFICIAL (fn) = 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TREE_NOTHROW (fn) = 1;
make_decl_rtl (fn, NULL);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
assemble_external (fn);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* We need to make an argument list for the function call.
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
memset has three arguments, the first is a void * addresses, the
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
second an integer with the initialization value, the last is a
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
size_t byte count for the copy. */
arg_list
= build_tree_list (NULL_TREE,
make_tree (build_pointer_type (void_type_node),
object));
TREE_CHAIN (arg_list)
= build_tree_list (NULL_TREE,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
make_tree (integer_type_node, const0_rtx));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
TREE_CHAIN (TREE_CHAIN (arg_list))
= build_tree_list (NULL_TREE, make_tree (sizetype, size));
TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (arg_list))) = NULL_TREE;
/* Now we have to build up the CALL_EXPR itself. */
call_expr = build1 (ADDR_EXPR,
build_pointer_type (TREE_TYPE (fn)), fn);
call_expr = build (CALL_EXPR, TREE_TYPE (TREE_TYPE (fn)),
call_expr, arg_list, NULL_TREE);
TREE_SIDE_EFFECTS (call_expr) = 1;
retval = expand_expr (call_expr, NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (bzero_libfunc, LCT_NORMAL,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
VOIDmode, 2, object, Pmode, size,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TYPE_MODE (integer_type_node));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we are initializing a readonly value, show the above call
clobbered it. Otherwise, a load from it may erroneously be
hoisted from a loop. */
if (RTX_UNCHANGING_P (object))
emit_insn (gen_rtx_CLOBBER (VOIDmode, object));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return retval;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Generate code to copy Y into X.
Both Y and X must have the same mode, except that
Y can be a constant with VOIDmode.
This mode cannot be BLKmode; use emit_block_move for that.
Return the last instruction emitted. */
rtx
emit_move_insn (x, y)
rtx x, y;
{
enum machine_mode mode = GET_MODE (x);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx y_cst = NULL_RTX;
rtx last_insn;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
x = protect_from_queue (x, 1);
y = protect_from_queue (y, 0);
if (mode == BLKmode || (GET_MODE (y) != mode && GET_MODE (y) != VOIDmode))
abort ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* Never force constant_p_rtx to memory. */
if (GET_CODE (y) == CONSTANT_P_RTX)
;
else if (CONSTANT_P (y) && ! LEGITIMATE_CONSTANT_P (y))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
y_cst = y;
y = force_const_mem (mode, y);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If X or Y are memory references, verify that their addresses are valid
for the machine. */
if (GET_CODE (x) == MEM
&& ((! memory_address_p (GET_MODE (x), XEXP (x, 0))
&& ! push_operand (x, GET_MODE (x)))
|| (flag_force_addr
&& CONSTANT_ADDRESS_P (XEXP (x, 0)))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
x = validize_mem (x);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (y) == MEM
&& (! memory_address_p (GET_MODE (y), XEXP (y, 0))
|| (flag_force_addr
&& CONSTANT_ADDRESS_P (XEXP (y, 0)))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
y = validize_mem (y);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mode == BLKmode)
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
last_insn = emit_move_insn_1 (x, y);
if (y_cst && GET_CODE (x) == REG)
set_unique_reg_note (last_insn, REG_EQUAL, y_cst);
return last_insn;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Low level part of emit_move_insn.
Called just like emit_move_insn, but assumes X and Y
are basically valid. */
rtx
emit_move_insn_1 (x, y)
rtx x, y;
{
enum machine_mode mode = GET_MODE (x);
enum machine_mode submode;
enum mode_class class = GET_MODE_CLASS (mode);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if ((unsigned int) mode >= (unsigned int) MAX_MACHINE_MODE)
abort ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
return
emit_insn (GEN_FCN (mov_optab->handlers[(int) mode].insn_code) (x, y));
/* Expand complex moves by moving real part and imag part, if possible. */
else if ((class == MODE_COMPLEX_FLOAT || class == MODE_COMPLEX_INT)
&& BLKmode != (submode = mode_for_size ((GET_MODE_UNIT_SIZE (mode)
* BITS_PER_UNIT),
(class == MODE_COMPLEX_INT
? MODE_INT : MODE_FLOAT),
0))
&& (mov_optab->handlers[(int) submode].insn_code
!= CODE_FOR_nothing))
{
/* Don't split destination if it is a stack push. */
int stack = push_operand (x, GET_MODE (x));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifdef PUSH_ROUNDING
/* In case we output to the stack, but the size is smaller machine can
push exactly, we need to use move instructions. */
if (stack
&& (PUSH_ROUNDING (GET_MODE_SIZE (submode))
!= GET_MODE_SIZE (submode)))
{
rtx temp;
HOST_WIDE_INT offset1, offset2;
/* Do not use anti_adjust_stack, since we don't want to update
stack_pointer_delta. */
temp = expand_binop (Pmode,
#ifdef STACK_GROWS_DOWNWARD
sub_optab,
#else
add_optab,
#endif
stack_pointer_rtx,
GEN_INT
(PUSH_ROUNDING
(GET_MODE_SIZE (GET_MODE (x)))),
stack_pointer_rtx, 0, OPTAB_LIB_WIDEN);
if (temp != stack_pointer_rtx)
emit_move_insn (stack_pointer_rtx, temp);
#ifdef STACK_GROWS_DOWNWARD
offset1 = 0;
offset2 = GET_MODE_SIZE (submode);
#else
offset1 = -PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)));
offset2 = (-PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)))
+ GET_MODE_SIZE (submode));
#endif
emit_move_insn (change_address (x, submode,
gen_rtx_PLUS (Pmode,
stack_pointer_rtx,
GEN_INT (offset1))),
gen_realpart (submode, y));
emit_move_insn (change_address (x, submode,
gen_rtx_PLUS (Pmode,
stack_pointer_rtx,
GEN_INT (offset2))),
gen_imagpart (submode, y));
}
else
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If this is a stack, push the highpart first, so it
will be in the argument order.
In that case, change_address is used only to convert
the mode, not to change the address. */
if (stack)
{
/* Note that the real part always precedes the imag part in memory
regardless of machine's endianness. */
#ifdef STACK_GROWS_DOWNWARD
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
(gen_rtx_MEM (submode, XEXP (x, 0)),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gen_imagpart (submode, y)));
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
(gen_rtx_MEM (submode, XEXP (x, 0)),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gen_realpart (submode, y)));
#else
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
(gen_rtx_MEM (submode, XEXP (x, 0)),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gen_realpart (submode, y)));
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
(gen_rtx_MEM (submode, XEXP (x, 0)),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gen_imagpart (submode, y)));
#endif
}
else
{
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
rtx realpart_x, realpart_y;
rtx imagpart_x, imagpart_y;
/* If this is a complex value with each part being smaller than a
word, the usual calling sequence will likely pack the pieces into
a single register. Unfortunately, SUBREG of hard registers only
deals in terms of words, so we have a problem converting input
arguments to the CONCAT of two registers that is used elsewhere
for complex values. If this is before reload, we can copy it into
memory and reload. FIXME, we should see about using extract and
insert on integer registers, but complex short and complex char
variables should be rarely used. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE_BITSIZE (mode) < 2 * BITS_PER_WORD
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
&& (reload_in_progress | reload_completed) == 0)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int packed_dest_p
= (REG_P (x) && REGNO (x) < FIRST_PSEUDO_REGISTER);
int packed_src_p
= (REG_P (y) && REGNO (y) < FIRST_PSEUDO_REGISTER);
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
if (packed_dest_p || packed_src_p)
{
enum mode_class reg_class = ((class == MODE_COMPLEX_FLOAT)
? MODE_FLOAT : MODE_INT);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum machine_mode reg_mode
= mode_for_size (GET_MODE_BITSIZE (mode), reg_class, 1);
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
if (reg_mode != BLKmode)
{
rtx mem = assign_stack_temp (reg_mode,
GET_MODE_SIZE (mode), 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx cmem = adjust_address (mem, mode, 0);
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
cfun->cannot_inline
= N_("function using short complex types cannot be inline");
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
if (packed_dest_p)
{
rtx sreg = gen_rtx_SUBREG (reg_mode, x, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
emit_move_insn_1 (cmem, y);
return emit_move_insn_1 (sreg, mem);
}
else
{
rtx sreg = gen_rtx_SUBREG (reg_mode, y, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
emit_move_insn_1 (mem, sreg);
return emit_move_insn_1 (x, cmem);
}
}
}
}
realpart_x = gen_realpart (submode, x);
realpart_y = gen_realpart (submode, y);
imagpart_x = gen_imagpart (submode, x);
imagpart_y = gen_imagpart (submode, y);
/* Show the output dies here. This is necessary for SUBREGs
of pseudos since we cannot track their lifetimes correctly;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
hard regs shouldn't appear here except as return values.
We never want to emit such a clobber after reload. */
if (x != y
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
&& ! (reload_in_progress || reload_completed)
&& (GET_CODE (realpart_x) == SUBREG
|| GET_CODE (imagpart_x) == SUBREG))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
(realpart_x, realpart_y));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
(imagpart_x, imagpart_y));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return get_last_insn ();
}
/* This will handle any multi-word mode that lacks a move_insn pattern.
However, you will get better code if you define such patterns,
even if they must turn into multiple assembler instructions. */
else if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
{
rtx last_insn = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx seq, inner;
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
int need_clobber;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int i;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef PUSH_ROUNDING
/* If X is a push on the stack, do the push now and replace
X with a reference to the stack pointer. */
if (push_operand (x, GET_MODE (x)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp;
enum rtx_code code;
/* Do not use anti_adjust_stack, since we don't want to update
stack_pointer_delta. */
temp = expand_binop (Pmode,
#ifdef STACK_GROWS_DOWNWARD
sub_optab,
#else
add_optab,
#endif
stack_pointer_rtx,
GEN_INT
(PUSH_ROUNDING
(GET_MODE_SIZE (GET_MODE (x)))),
stack_pointer_rtx, 0, OPTAB_LIB_WIDEN);
if (temp != stack_pointer_rtx)
emit_move_insn (stack_pointer_rtx, temp);
code = GET_CODE (XEXP (x, 0));
/* Just hope that small offsets off SP are OK. */
if (code == POST_INC)
temp = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
GEN_INT (-((HOST_WIDE_INT)
GET_MODE_SIZE (GET_MODE (x)))));
else if (code == POST_DEC)
temp = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
GEN_INT (GET_MODE_SIZE (GET_MODE (x))));
else
temp = stack_pointer_rtx;
x = change_address (x, VOIDmode, temp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we are in reload, see if either operand is a MEM whose address
is scheduled for replacement. */
if (reload_in_progress && GET_CODE (x) == MEM
&& (inner = find_replacement (&XEXP (x, 0))) != XEXP (x, 0))
x = replace_equiv_address_nv (x, inner);
if (reload_in_progress && GET_CODE (y) == MEM
&& (inner = find_replacement (&XEXP (y, 0))) != XEXP (y, 0))
y = replace_equiv_address_nv (y, inner);
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
start_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
need_clobber = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (i = 0;
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2002-02-01 18:16:02 +00:00
i < (GET_MODE_SIZE (mode) + (UNITS_PER_WORD - 1)) / UNITS_PER_WORD;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
i++)
{
rtx xpart = operand_subword (x, i, 1, mode);
rtx ypart = operand_subword (y, i, 1, mode);
/* If we can't get a part of Y, put Y into memory if it is a
constant. Otherwise, force it into a register. If we still
can't get a part of Y, abort. */
if (ypart == 0 && CONSTANT_P (y))
{
y = force_const_mem (mode, y);
ypart = operand_subword (y, i, 1, mode);
}
else if (ypart == 0)
ypart = operand_subword_force (y, i, mode);
if (xpart == 0 || ypart == 0)
abort ();
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2001-01-03 17:16:04 +00:00
need_clobber |= (GET_CODE (xpart) == SUBREG);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
last_insn = emit_move_insn (xpart, ypart);
}
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2001-01-03 17:16:04 +00:00
seq = gen_sequence ();
end_sequence ();
/* Show the output dies here. This is necessary for SUBREGs
of pseudos since we cannot track their lifetimes correctly;
hard regs shouldn't appear here except as return values.
We never want to emit such a clobber after reload. */
if (x != y
&& ! (reload_in_progress || reload_completed)
&& need_clobber != 0)
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2002-02-01 18:16:02 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
emit_insn (seq);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return last_insn;
}
else
abort ();
}
/* Pushing data onto the stack. */
/* Push a block of length SIZE (perhaps variable)
and return an rtx to address the beginning of the block.
Note that it is not possible for the value returned to be a QUEUED.
The value may be virtual_outgoing_args_rtx.
EXTRA is the number of bytes of padding to push in addition to SIZE.
BELOW nonzero means this padding comes at low addresses;
otherwise, the padding comes at high addresses. */
rtx
push_block (size, extra, below)
rtx size;
int extra, below;
{
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2002-02-01 18:16:02 +00:00
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
size = convert_modes (Pmode, ptr_mode, size, 1);
if (CONSTANT_P (size))
anti_adjust_stack (plus_constant (size, extra));
else if (GET_CODE (size) == REG && extra == 0)
anti_adjust_stack (size);
else
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = copy_to_mode_reg (Pmode, size);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (extra != 0)
temp = expand_binop (Pmode, add_optab, temp, GEN_INT (extra),
temp, 0, OPTAB_LIB_WIDEN);
anti_adjust_stack (temp);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifndef STACK_GROWS_DOWNWARD
if (0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
temp = virtual_outgoing_args_rtx;
if (extra != 0 && below)
temp = plus_constant (temp, extra);
}
else
{
if (GET_CODE (size) == CONST_INT)
temp = plus_constant (virtual_outgoing_args_rtx,
-INTVAL (size) - (below ? 0 : extra));
else if (extra != 0 && !below)
temp = gen_rtx_PLUS (Pmode, virtual_outgoing_args_rtx,
negate_rtx (Pmode, plus_constant (size, extra)));
else
temp = gen_rtx_PLUS (Pmode, virtual_outgoing_args_rtx,
negate_rtx (Pmode, size));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return memory_address (GET_CLASS_NARROWEST_MODE (MODE_INT), temp);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifdef PUSH_ROUNDING
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
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2002-02-01 18:16:02 +00:00
/* Emit single push insn. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static void
emit_single_push_insn (mode, x, type)
rtx x;
enum machine_mode mode;
tree type;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx dest_addr;
unsigned rounded_size = PUSH_ROUNDING (GET_MODE_SIZE (mode));
rtx dest;
enum insn_code icode;
insn_operand_predicate_fn pred;
stack_pointer_delta += PUSH_ROUNDING (GET_MODE_SIZE (mode));
/* If there is push pattern, use it. Otherwise try old way of throwing
MEM representing push operation to move expander. */
icode = push_optab->handlers[(int) mode].insn_code;
if (icode != CODE_FOR_nothing)
{
if (((pred = insn_data[(int) icode].operand[0].predicate)
&& !((*pred) (x, mode))))
x = force_reg (mode, x);
emit_insn (GEN_FCN (icode) (x));
return;
}
if (GET_MODE_SIZE (mode) == rounded_size)
dest_addr = gen_rtx_fmt_e (STACK_PUSH_CODE, Pmode, stack_pointer_rtx);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
#ifdef STACK_GROWS_DOWNWARD
dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
GEN_INT (-(HOST_WIDE_INT) rounded_size));
#else
dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
GEN_INT (rounded_size));
#endif
dest_addr = gen_rtx_PRE_MODIFY (Pmode, stack_pointer_rtx, dest_addr);
}
dest = gen_rtx_MEM (mode, dest_addr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (type != 0)
{
set_mem_attributes (dest, type, 1);
if (flag_optimize_sibling_calls)
/* Function incoming arguments may overlap with sibling call
outgoing arguments and we cannot allow reordering of reads
from function arguments with stores to outgoing arguments
of sibling calls. */
set_mem_alias_set (dest, 0);
}
emit_move_insn (dest, x);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Generate code to push X onto the stack, assuming it has mode MODE and
type TYPE.
MODE is redundant except when X is a CONST_INT (since they don't
carry mode info).
SIZE is an rtx for the size of data to be copied (in bytes),
needed only if X is BLKmode.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ALIGN (in bits) is maximum alignment we can assume.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
If PARTIAL and REG are both nonzero, then copy that many of the first
words of X into registers starting with REG, and push the rest of X.
The amount of space pushed is decreased by PARTIAL words,
rounded *down* to a multiple of PARM_BOUNDARY.
REG must be a hard register in this case.
If REG is zero but PARTIAL is not, take any all others actions for an
argument partially in registers, but do not actually load any
registers.
EXTRA is the amount in bytes of extra space to leave next to this arg.
This is ignored if an argument block has already been allocated.
On a machine that lacks real push insns, ARGS_ADDR is the address of
the bottom of the argument block for this call. We use indexing off there
to store the arg. On machines with push insns, ARGS_ADDR is 0 when a
argument block has not been preallocated.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
ARGS_SO_FAR is the size of args previously pushed for this call.
REG_PARM_STACK_SPACE is nonzero if functions require stack space
for arguments passed in registers. If nonzero, it will be the number
of bytes required. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
emit_push_insn (x, mode, type, size, align, partial, reg, extra,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
args_addr, args_so_far, reg_parm_stack_space,
alignment_pad)
rtx x;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode;
tree type;
rtx size;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int align;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int partial;
rtx reg;
int extra;
rtx args_addr;
rtx args_so_far;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int reg_parm_stack_space;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx alignment_pad;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx xinner;
enum direction stack_direction
#ifdef STACK_GROWS_DOWNWARD
= downward;
#else
= upward;
#endif
/* Decide where to pad the argument: `downward' for below,
`upward' for above, or `none' for don't pad it.
Default is below for small data on big-endian machines; else above. */
enum direction where_pad = FUNCTION_ARG_PADDING (mode, type);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Invert direction if stack is post-decrement.
FIXME: why? */
if (STACK_PUSH_CODE == POST_DEC)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (where_pad != none)
where_pad = (where_pad == downward ? upward : downward);
xinner = x = protect_from_queue (x, 0);
if (mode == BLKmode)
{
/* Copy a block into the stack, entirely or partially. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int used = partial * UNITS_PER_WORD;
int offset = used % (PARM_BOUNDARY / BITS_PER_UNIT);
int skip;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (size == 0)
abort ();
used -= offset;
/* USED is now the # of bytes we need not copy to the stack
because registers will take care of them. */
if (partial != 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
xinner = adjust_address (xinner, BLKmode, used);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the partial register-part of the arg counts in its stack size,
skip the part of stack space corresponding to the registers.
Otherwise, start copying to the beginning of the stack space,
by setting SKIP to 0. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
skip = (reg_parm_stack_space == 0) ? 0 : used;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef PUSH_ROUNDING
/* Do it with several push insns if that doesn't take lots of insns
and if there is no difficulty with push insns that skip bytes
on the stack for alignment purposes. */
if (args_addr == 0
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& PUSH_ARGS
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& GET_CODE (size) == CONST_INT
&& skip == 0
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& (MOVE_BY_PIECES_P ((unsigned) INTVAL (size) - used, align))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Here we avoid the case of a structure whose weak alignment
forces many pushes of a small amount of data,
and such small pushes do rounding that causes trouble. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& ((! SLOW_UNALIGNED_ACCESS (word_mode, align))
|| align >= BIGGEST_ALIGNMENT
|| (PUSH_ROUNDING (align / BITS_PER_UNIT)
== (align / BITS_PER_UNIT)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& PUSH_ROUNDING (INTVAL (size)) == INTVAL (size))
{
/* Push padding now if padding above and stack grows down,
or if padding below and stack grows up.
But if space already allocated, this has already been done. */
if (extra && args_addr == 0
&& where_pad != none && where_pad != stack_direction)
anti_adjust_stack (GEN_INT (extra));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
move_by_pieces (NULL, xinner, INTVAL (size) - used, align);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#endif /* PUSH_ROUNDING */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Otherwise make space on the stack and copy the data
to the address of that space. */
/* Deduct words put into registers from the size we must copy. */
if (partial != 0)
{
if (GET_CODE (size) == CONST_INT)
size = GEN_INT (INTVAL (size) - used);
else
size = expand_binop (GET_MODE (size), sub_optab, size,
GEN_INT (used), NULL_RTX, 0,
OPTAB_LIB_WIDEN);
}
/* Get the address of the stack space.
In this case, we do not deal with EXTRA separately.
A single stack adjust will do. */
if (! args_addr)
{
temp = push_block (size, extra, where_pad == downward);
extra = 0;
}
else if (GET_CODE (args_so_far) == CONST_INT)
temp = memory_address (BLKmode,
plus_constant (args_addr,
skip + INTVAL (args_so_far)));
else
temp = memory_address (BLKmode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
plus_constant (gen_rtx_PLUS (Pmode,
args_addr,
args_so_far),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
skip));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
target = gen_rtx_MEM (BLKmode, temp);
if (type != 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
set_mem_attributes (target, type, 1);
/* Function incoming arguments may overlap with sibling call
outgoing arguments and we cannot allow reordering of reads
from function arguments with stores to outgoing arguments
of sibling calls. */
set_mem_alias_set (target, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
set_mem_align (target, align);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* TEMP is the address of the block. Copy the data there. */
if (GET_CODE (size) == CONST_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& MOVE_BY_PIECES_P ((unsigned) INTVAL (size), align))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
move_by_pieces (target, xinner, INTVAL (size), align);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
goto ret;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx opalign = GEN_INT (align / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode;
for (mode = GET_CLASS_NARROWEST_MODE (MODE_INT);
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum insn_code code = movstr_optab[(int) mode];
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
insn_operand_predicate_fn pred;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (code != CODE_FOR_nothing
&& ((GET_CODE (size) == CONST_INT
&& ((unsigned HOST_WIDE_INT) INTVAL (size)
<= (GET_MODE_MASK (mode) >> 1)))
|| GET_MODE_BITSIZE (mode) >= BITS_PER_WORD)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (!(pred = insn_data[(int) code].operand[0].predicate)
|| ((*pred) (target, BLKmode)))
&& (!(pred = insn_data[(int) code].operand[1].predicate)
|| ((*pred) (xinner, BLKmode)))
&& (!(pred = insn_data[(int) code].operand[3].predicate)
|| ((*pred) (opalign, VOIDmode))))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
rtx op2 = convert_to_mode (mode, size, 1);
rtx last = get_last_insn ();
rtx pat;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
pred = insn_data[(int) code].operand[2].predicate;
if (pred != 0 && ! (*pred) (op2, mode))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op2 = copy_to_mode_reg (mode, op2);
pat = GEN_FCN ((int) code) (target, xinner,
op2, opalign);
if (pat)
{
emit_insn (pat);
goto ret;
}
else
delete_insns_since (last);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!ACCUMULATE_OUTGOING_ARGS)
{
/* If the source is referenced relative to the stack pointer,
copy it to another register to stabilize it. We do not need
to do this if we know that we won't be changing sp. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (reg_mentioned_p (virtual_stack_dynamic_rtx, temp)
|| reg_mentioned_p (virtual_outgoing_args_rtx, temp))
temp = copy_to_reg (temp);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Make inhibit_defer_pop nonzero around the library call
to force it to pop the bcopy-arguments right away. */
NO_DEFER_POP;
#ifdef TARGET_MEM_FUNCTIONS
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (memcpy_libfunc, LCT_NORMAL,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
VOIDmode, 3, temp, Pmode, XEXP (xinner, 0), Pmode,
convert_to_mode (TYPE_MODE (sizetype),
size, TREE_UNSIGNED (sizetype)),
TYPE_MODE (sizetype));
#else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (bcopy_libfunc, LCT_NORMAL,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
VOIDmode, 3, XEXP (xinner, 0), Pmode, temp, Pmode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
convert_to_mode (TYPE_MODE (integer_type_node),
size,
TREE_UNSIGNED (integer_type_node)),
TYPE_MODE (integer_type_node));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
OK_DEFER_POP;
}
}
else if (partial > 0)
{
/* Scalar partly in registers. */
int size = GET_MODE_SIZE (mode) / UNITS_PER_WORD;
int i;
int not_stack;
/* # words of start of argument
that we must make space for but need not store. */
int offset = partial % (PARM_BOUNDARY / BITS_PER_WORD);
int args_offset = INTVAL (args_so_far);
int skip;
/* Push padding now if padding above and stack grows down,
or if padding below and stack grows up.
But if space already allocated, this has already been done. */
if (extra && args_addr == 0
&& where_pad != none && where_pad != stack_direction)
anti_adjust_stack (GEN_INT (extra));
/* If we make space by pushing it, we might as well push
the real data. Otherwise, we can leave OFFSET nonzero
and leave the space uninitialized. */
if (args_addr == 0)
offset = 0;
/* Now NOT_STACK gets the number of words that we don't need to
allocate on the stack. */
not_stack = partial - offset;
/* If the partial register-part of the arg counts in its stack size,
skip the part of stack space corresponding to the registers.
Otherwise, start copying to the beginning of the stack space,
by setting SKIP to 0. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
skip = (reg_parm_stack_space == 0) ? 0 : not_stack;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (CONSTANT_P (x) && ! LEGITIMATE_CONSTANT_P (x))
x = validize_mem (force_const_mem (mode, x));
/* If X is a hard register in a non-integer mode, copy it into a pseudo;
SUBREGs of such registers are not allowed. */
if ((GET_CODE (x) == REG && REGNO (x) < FIRST_PSEUDO_REGISTER
&& GET_MODE_CLASS (GET_MODE (x)) != MODE_INT))
x = copy_to_reg (x);
/* Loop over all the words allocated on the stack for this arg. */
/* We can do it by words, because any scalar bigger than a word
has a size a multiple of a word. */
#ifndef PUSH_ARGS_REVERSED
for (i = not_stack; i < size; i++)
#else
for (i = size - 1; i >= not_stack; i--)
#endif
if (i >= not_stack + offset)
emit_push_insn (operand_subword_force (x, i, mode),
word_mode, NULL_TREE, NULL_RTX, align, 0, NULL_RTX,
0, args_addr,
GEN_INT (args_offset + ((i - not_stack + skip)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
* UNITS_PER_WORD)),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
reg_parm_stack_space, alignment_pad);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
{
rtx addr;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx target = NULL_RTX;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx dest;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Push padding now if padding above and stack grows down,
or if padding below and stack grows up.
But if space already allocated, this has already been done. */
if (extra && args_addr == 0
&& where_pad != none && where_pad != stack_direction)
anti_adjust_stack (GEN_INT (extra));
#ifdef PUSH_ROUNDING
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (args_addr == 0 && PUSH_ARGS)
emit_single_push_insn (mode, x, type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
if (GET_CODE (args_so_far) == CONST_INT)
addr
= memory_address (mode,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
plus_constant (args_addr,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
INTVAL (args_so_far)));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
addr = memory_address (mode, gen_rtx_PLUS (Pmode, args_addr,
args_so_far));
target = addr;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
dest = gen_rtx_MEM (mode, addr);
if (type != 0)
{
set_mem_attributes (dest, type, 1);
/* Function incoming arguments may overlap with sibling call
outgoing arguments and we cannot allow reordering of reads
from function arguments with stores to outgoing arguments
of sibling calls. */
set_mem_alias_set (dest, 0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (dest, x);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
ret:
/* If part should go in registers, copy that part
into the appropriate registers. Do this now, at the end,
since mem-to-mem copies above may do function calls. */
if (partial > 0 && reg != 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
/* Handle calls that pass values in multiple non-contiguous locations.
The Irix 6 ABI has examples of this. */
if (GET_CODE (reg) == PARALLEL)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_group_load (reg, x, -1); /* ??? size? */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
move_block_to_reg (REGNO (reg), x, partial, mode);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (extra && args_addr == 0 && where_pad == stack_direction)
anti_adjust_stack (GEN_INT (extra));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (alignment_pad && args_addr == 0)
anti_adjust_stack (alignment_pad);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Return X if X can be used as a subtarget in a sequence of arithmetic
operations. */
static rtx
get_subtarget (x)
rtx x;
{
return ((x == 0
/* Only registers can be subtargets. */
|| GET_CODE (x) != REG
/* If the register is readonly, it can't be set more than once. */
|| RTX_UNCHANGING_P (x)
/* Don't use hard regs to avoid extending their life. */
|| REGNO (x) < FIRST_PSEUDO_REGISTER
/* Avoid subtargets inside loops,
since they hide some invariant expressions. */
|| preserve_subexpressions_p ())
? 0 : x);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Expand an assignment that stores the value of FROM into TO.
If WANT_VALUE is nonzero, return an rtx for the value of TO.
(This may contain a QUEUED rtx;
if the value is constant, this rtx is a constant.)
Otherwise, the returned value is NULL_RTX.
SUGGEST_REG is no longer actually used.
It used to mean, copy the value through a register
and return that register, if that is possible.
We now use WANT_VALUE to decide whether to do this. */
rtx
expand_assignment (to, from, want_value, suggest_reg)
tree to, from;
int want_value;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int suggest_reg ATTRIBUTE_UNUSED;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx to_rtx = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx result;
/* Don't crash if the lhs of the assignment was erroneous. */
if (TREE_CODE (to) == ERROR_MARK)
{
result = expand_expr (from, NULL_RTX, VOIDmode, 0);
return want_value ? result : NULL_RTX;
}
/* Assignment of a structure component needs special treatment
if the structure component's rtx is not simply a MEM.
Assignment of an array element at a constant index, and assignment of
an array element in an unaligned packed structure field, has the same
problem. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (to) == COMPONENT_REF || TREE_CODE (to) == BIT_FIELD_REF
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| TREE_CODE (to) == ARRAY_REF || TREE_CODE (to) == ARRAY_RANGE_REF)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
enum machine_mode mode1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bitsize, bitpos;
rtx orig_to_rtx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree offset;
int unsignedp;
int volatilep = 0;
tree tem;
push_temp_slots ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tem = get_inner_reference (to, &bitsize, &bitpos, &offset, &mode1,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&unsignedp, &volatilep);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we are going to use store_bit_field and extract_bit_field,
make sure to_rtx will be safe for multiple use. */
if (mode1 == VOIDmode && want_value)
tem = stabilize_reference (tem);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
orig_to_rtx = to_rtx = expand_expr (tem, NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (offset != 0)
{
rtx offset_rtx = expand_expr (offset, NULL_RTX, VOIDmode, 0);
if (GET_CODE (to_rtx) != MEM)
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE (offset_rtx) != ptr_mode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE (offset_rtx) != Pmode)
offset_rtx = convert_memory_address (Pmode, offset_rtx);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* A constant address in TO_RTX can have VOIDmode, we must not try
to call force_reg for that case. Avoid that case. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (to_rtx) == MEM
&& GET_MODE (to_rtx) == BLKmode
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& GET_MODE (XEXP (to_rtx, 0)) != VOIDmode
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& bitsize > 0
&& (bitpos % bitsize) == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (bitsize % GET_MODE_ALIGNMENT (mode1)) == 0
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& MEM_ALIGN (to_rtx) == GET_MODE_ALIGNMENT (mode1))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp
= adjust_address (to_rtx, mode1, bitpos / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (XEXP (temp, 0)) == REG)
to_rtx = temp;
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = (replace_equiv_address
(to_rtx, force_reg (GET_MODE (XEXP (temp, 0)),
XEXP (temp, 0))));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
bitpos = 0;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = offset_address (to_rtx, offset_rtx,
highest_pow2_factor (offset));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (to_rtx) == MEM)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree old_expr = MEM_EXPR (to_rtx);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If the field is at offset zero, we could have been given the
DECL_RTX of the parent struct. Don't munge it. */
to_rtx = shallow_copy_rtx (to_rtx);
set_mem_attributes (to_rtx, to, 0);
/* If we changed MEM_EXPR, that means we're now referencing
the COMPONENT_REF, which means that MEM_OFFSET must be
relative to that field. But we've not yet reflected BITPOS
in TO_RTX. This will be done in store_field. Adjust for
that by biasing MEM_OFFSET by -bitpos. */
if (MEM_EXPR (to_rtx) != old_expr && MEM_OFFSET (to_rtx)
&& (bitpos / BITS_PER_UNIT) != 0)
set_mem_offset (to_rtx, GEN_INT (INTVAL (MEM_OFFSET (to_rtx))
- (bitpos / BITS_PER_UNIT)));
}
/* Deal with volatile and readonly fields. The former is only done
for MEM. Also set MEM_KEEP_ALIAS_SET_P if needed. */
if (volatilep && GET_CODE (to_rtx) == MEM)
{
if (to_rtx == orig_to_rtx)
to_rtx = copy_rtx (to_rtx);
MEM_VOLATILE_P (to_rtx) = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (to) == COMPONENT_REF
&& TREE_READONLY (TREE_OPERAND (to, 1)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (to_rtx == orig_to_rtx)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
to_rtx = copy_rtx (to_rtx);
RTX_UNCHANGING_P (to_rtx) = 1;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (to_rtx) == MEM && ! can_address_p (to))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (to_rtx == orig_to_rtx)
to_rtx = copy_rtx (to_rtx);
MEM_KEEP_ALIAS_SET_P (to_rtx) = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
result = store_field (to_rtx, bitsize, bitpos, mode1, from,
(want_value
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Spurious cast for HPUX compiler. */
? ((enum machine_mode)
TYPE_MODE (TREE_TYPE (to)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
: VOIDmode),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp, TREE_TYPE (tem), get_alias_set (to));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
preserve_temp_slots (result);
free_temp_slots ();
pop_temp_slots ();
/* If the value is meaningful, convert RESULT to the proper mode.
Otherwise, return nothing. */
return (want_value ? convert_modes (TYPE_MODE (TREE_TYPE (to)),
TYPE_MODE (TREE_TYPE (from)),
result,
TREE_UNSIGNED (TREE_TYPE (to)))
: NULL_RTX);
}
/* If the rhs is a function call and its value is not an aggregate,
call the function before we start to compute the lhs.
This is needed for correct code for cases such as
val = setjmp (buf) on machines where reference to val
requires loading up part of an address in a separate insn.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Don't do this if TO is a VAR_DECL or PARM_DECL whose DECL_RTL is REG
since it might be a promoted variable where the zero- or sign- extension
needs to be done. Handling this in the normal way is safe because no
computation is done before the call. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_CODE (from) == CALL_EXPR && ! aggregate_value_p (from)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& TREE_CODE (TYPE_SIZE (TREE_TYPE (from))) == INTEGER_CST
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& ! ((TREE_CODE (to) == VAR_DECL || TREE_CODE (to) == PARM_DECL)
&& GET_CODE (DECL_RTL (to)) == REG))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx value;
push_temp_slots ();
value = expand_expr (from, NULL_RTX, VOIDmode, 0);
if (to_rtx == 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = expand_expr (to, NULL_RTX, VOIDmode, EXPAND_WRITE);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Handle calls that return values in multiple non-contiguous locations.
The Irix 6 ABI has examples of this. */
if (GET_CODE (to_rtx) == PARALLEL)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_group_load (to_rtx, value, int_size_in_bytes (TREE_TYPE (from)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (GET_MODE (to_rtx) == BLKmode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_block_move (to_rtx, value, expr_size (from));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
#ifdef POINTERS_EXTEND_UNSIGNED
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (POINTER_TYPE_P (TREE_TYPE (to))
&& GET_MODE (to_rtx) != GET_MODE (value))
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
value = convert_memory_address (GET_MODE (to_rtx), value);
#endif
emit_move_insn (to_rtx, value);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
preserve_temp_slots (to_rtx);
free_temp_slots ();
pop_temp_slots ();
return want_value ? to_rtx : NULL_RTX;
}
/* Ordinary treatment. Expand TO to get a REG or MEM rtx.
Don't re-expand if it was expanded already (in COMPONENT_REF case). */
if (to_rtx == 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = expand_expr (to, NULL_RTX, VOIDmode, EXPAND_WRITE);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Don't move directly into a return register. */
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2002-02-01 18:16:02 +00:00
if (TREE_CODE (to) == RESULT_DECL
&& (GET_CODE (to_rtx) == REG || GET_CODE (to_rtx) == PARALLEL))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx temp;
push_temp_slots ();
temp = expand_expr (from, 0, GET_MODE (to_rtx), 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (to_rtx) == PARALLEL)
emit_group_load (to_rtx, temp, int_size_in_bytes (TREE_TYPE (from)));
else
emit_move_insn (to_rtx, temp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
preserve_temp_slots (to_rtx);
free_temp_slots ();
pop_temp_slots ();
return want_value ? to_rtx : NULL_RTX;
}
/* In case we are returning the contents of an object which overlaps
the place the value is being stored, use a safe function when copying
a value through a pointer into a structure value return block. */
if (TREE_CODE (to) == RESULT_DECL && TREE_CODE (from) == INDIRECT_REF
&& current_function_returns_struct
&& !current_function_returns_pcc_struct)
{
rtx from_rtx, size;
push_temp_slots ();
size = expr_size (from);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
from_rtx = expand_expr (from, NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef TARGET_MEM_FUNCTIONS
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (memmove_libfunc, LCT_NORMAL,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
VOIDmode, 3, XEXP (to_rtx, 0), Pmode,
XEXP (from_rtx, 0), Pmode,
convert_to_mode (TYPE_MODE (sizetype),
size, TREE_UNSIGNED (sizetype)),
TYPE_MODE (sizetype));
#else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (bcopy_libfunc, LCT_NORMAL,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
VOIDmode, 3, XEXP (from_rtx, 0), Pmode,
XEXP (to_rtx, 0), Pmode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
convert_to_mode (TYPE_MODE (integer_type_node),
size, TREE_UNSIGNED (integer_type_node)),
TYPE_MODE (integer_type_node));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
preserve_temp_slots (to_rtx);
free_temp_slots ();
pop_temp_slots ();
return want_value ? to_rtx : NULL_RTX;
}
/* Compute FROM and store the value in the rtx we got. */
push_temp_slots ();
result = store_expr (from, to_rtx, want_value);
preserve_temp_slots (result);
free_temp_slots ();
pop_temp_slots ();
return want_value ? result : NULL_RTX;
}
/* Generate code for computing expression EXP,
and storing the value into TARGET.
TARGET may contain a QUEUED rtx.
If WANT_VALUE is nonzero, return a copy of the value
not in TARGET, so that we can be sure to use the proper
value in a containing expression even if TARGET has something
else stored in it. If possible, we copy the value through a pseudo
and return that pseudo. Or, if the value is constant, we try to
return the constant. In some cases, we return a pseudo
copied *from* TARGET.
If the mode is BLKmode then we may return TARGET itself.
It turns out that in BLKmode it doesn't cause a problem.
because C has no operators that could combine two different
assignments into the same BLKmode object with different values
with no sequence point. Will other languages need this to
be more thorough?
If WANT_VALUE is 0, we return NULL, to make sure
to catch quickly any cases where the caller uses the value
and fails to set WANT_VALUE. */
rtx
store_expr (exp, target, want_value)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree exp;
rtx target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int want_value;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int dont_return_target = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int dont_store_target = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_CODE (exp) == COMPOUND_EXPR)
{
/* Perform first part of compound expression, then assign from second
part. */
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode, 0);
emit_queue ();
return store_expr (TREE_OPERAND (exp, 1), target, want_value);
}
else if (TREE_CODE (exp) == COND_EXPR && GET_MODE (target) == BLKmode)
{
/* For conditional expression, get safe form of the target. Then
test the condition, doing the appropriate assignment on either
side. This avoids the creation of unnecessary temporaries.
For non-BLKmode, it is more efficient not to do this. */
rtx lab1 = gen_label_rtx (), lab2 = gen_label_rtx ();
emit_queue ();
target = protect_from_queue (target, 1);
do_pending_stack_adjust ();
NO_DEFER_POP;
jumpifnot (TREE_OPERAND (exp, 0), lab1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
store_expr (TREE_OPERAND (exp, 1), target, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
end_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_queue ();
emit_jump_insn (gen_jump (lab2));
emit_barrier ();
emit_label (lab1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
store_expr (TREE_OPERAND (exp, 2), target, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
end_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_queue ();
emit_label (lab2);
OK_DEFER_POP;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return want_value ? target : NULL_RTX;
}
else if (queued_subexp_p (target))
/* If target contains a postincrement, let's not risk
using it as the place to generate the rhs. */
{
if (GET_MODE (target) != BLKmode && GET_MODE (target) != VOIDmode)
{
/* Expand EXP into a new pseudo. */
temp = gen_reg_rtx (GET_MODE (target));
temp = expand_expr (exp, temp, GET_MODE (target), 0);
}
else
temp = expand_expr (exp, NULL_RTX, GET_MODE (target), 0);
/* If target is volatile, ANSI requires accessing the value
*from* the target, if it is accessed. So make that happen.
In no case return the target itself. */
if (! MEM_VOLATILE_P (target) && want_value)
dont_return_target = 1;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (want_value && GET_CODE (target) == MEM && ! MEM_VOLATILE_P (target)
&& GET_MODE (target) != BLKmode)
/* If target is in memory and caller wants value in a register instead,
arrange that. Pass TARGET as target for expand_expr so that,
if EXP is another assignment, WANT_VALUE will be nonzero for it.
We know expand_expr will not use the target in that case.
Don't do this if TARGET is volatile because we are supposed
to write it and then read it. */
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = expand_expr (exp, target, GET_MODE (target), 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE (temp) != BLKmode && GET_MODE (temp) != VOIDmode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
/* If TEMP is already in the desired TARGET, only copy it from
memory and don't store it there again. */
if (temp == target
|| (rtx_equal_p (temp, target)
&& ! side_effects_p (temp) && ! side_effects_p (target)))
dont_store_target = 1;
temp = copy_to_reg (temp);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
dont_return_target = 1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (GET_CODE (target) == SUBREG && SUBREG_PROMOTED_VAR_P (target))
/* If this is an scalar in a register that is stored in a wider mode
than the declared mode, compute the result into its declared mode
and then convert to the wider mode. Our value is the computed
expression. */
{
/* If we don't want a value, we can do the conversion inside EXP,
which will often result in some optimizations. Do the conversion
in two steps: first change the signedness, if needed, then
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
the extend. But don't do this if the type of EXP is a subtype
of something else since then the conversion might involve
more than just converting modes. */
if (! want_value && INTEGRAL_TYPE_P (TREE_TYPE (exp))
&& TREE_TYPE (TREE_TYPE (exp)) == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
if (TREE_UNSIGNED (TREE_TYPE (exp))
!= SUBREG_PROMOTED_UNSIGNED_P (target))
exp
= convert
(signed_or_unsigned_type (SUBREG_PROMOTED_UNSIGNED_P (target),
TREE_TYPE (exp)),
exp);
exp = convert (type_for_mode (GET_MODE (SUBREG_REG (target)),
SUBREG_PROMOTED_UNSIGNED_P (target)),
exp);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = expand_expr (exp, NULL_RTX, VOIDmode, 0);
/* If TEMP is a volatile MEM and we want a result value, make
the access now so it gets done only once. Likewise if
it contains TARGET. */
if (GET_CODE (temp) == MEM && want_value
&& (MEM_VOLATILE_P (temp)
|| reg_mentioned_p (SUBREG_REG (target), XEXP (temp, 0))))
temp = copy_to_reg (temp);
/* If TEMP is a VOIDmode constant, use convert_modes to make
sure that we properly convert it. */
if (CONSTANT_P (temp) && GET_MODE (temp) == VOIDmode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
temp = convert_modes (GET_MODE (target), TYPE_MODE (TREE_TYPE (exp)),
temp, SUBREG_PROMOTED_UNSIGNED_P (target));
temp = convert_modes (GET_MODE (SUBREG_REG (target)),
GET_MODE (target), temp,
SUBREG_PROMOTED_UNSIGNED_P (target));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
convert_move (SUBREG_REG (target), temp,
SUBREG_PROMOTED_UNSIGNED_P (target));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we promoted a constant, change the mode back down to match
target. Otherwise, the caller might get confused by a result whose
mode is larger than expected. */
if (want_value && GET_MODE (temp) != GET_MODE (target))
{
if (GET_MODE (temp) != VOIDmode)
{
temp = gen_lowpart_SUBREG (GET_MODE (target), temp);
SUBREG_PROMOTED_VAR_P (temp) = 1;
SUBREG_PROMOTED_UNSIGNED_P (temp)
= SUBREG_PROMOTED_UNSIGNED_P (target);
}
else
temp = convert_modes (GET_MODE (target),
GET_MODE (SUBREG_REG (target)),
temp, SUBREG_PROMOTED_UNSIGNED_P (target));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return want_value ? temp : NULL_RTX;
}
else
{
temp = expand_expr (exp, target, GET_MODE (target), 0);
/* Return TARGET if it's a specified hardware register.
If TARGET is a volatile mem ref, either return TARGET
or return a reg copied *from* TARGET; ANSI requires this.
Otherwise, if TEMP is not TARGET, return TEMP
if it is constant (for efficiency),
or if we really want the correct value. */
if (!(target && GET_CODE (target) == REG
&& REGNO (target) < FIRST_PSEUDO_REGISTER)
&& !(GET_CODE (target) == MEM && MEM_VOLATILE_P (target))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& ! rtx_equal_p (temp, target)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& (CONSTANT_P (temp) || want_value))
dont_return_target = 1;
}
/* If TEMP is a VOIDmode constant and the mode of the type of EXP is not
the same as that of TARGET, adjust the constant. This is needed, for
example, in case it is a CONST_DOUBLE and we want only a word-sized
value. */
if (CONSTANT_P (temp) && GET_MODE (temp) == VOIDmode
&& TREE_CODE (exp) != ERROR_MARK
&& GET_MODE (target) != TYPE_MODE (TREE_TYPE (exp)))
temp = convert_modes (GET_MODE (target), TYPE_MODE (TREE_TYPE (exp)),
temp, TREE_UNSIGNED (TREE_TYPE (exp)));
/* If value was not generated in the target, store it there.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Convert the value to TARGET's type first if necessary.
If TEMP and TARGET compare equal according to rtx_equal_p, but
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
one or both of them are volatile memory refs, we have to distinguish
two cases:
- expand_expr has used TARGET. In this case, we must not generate
another copy. This can be detected by TARGET being equal according
to == .
- expand_expr has not used TARGET - that means that the source just
happens to have the same RTX form. Since temp will have been created
by expand_expr, it will compare unequal according to == .
We must generate a copy in this case, to reach the correct number
of volatile memory references. */
if ((! rtx_equal_p (temp, target)
|| (temp != target && (side_effects_p (temp)
|| side_effects_p (target))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TREE_CODE (exp) != ERROR_MARK
&& ! dont_store_target)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
target = protect_from_queue (target, 1);
if (GET_MODE (temp) != GET_MODE (target)
&& GET_MODE (temp) != VOIDmode)
{
int unsignedp = TREE_UNSIGNED (TREE_TYPE (exp));
if (dont_return_target)
{
/* In this case, we will return TEMP,
so make sure it has the proper mode.
But don't forget to store the value into TARGET. */
temp = convert_to_mode (GET_MODE (target), temp, unsignedp);
emit_move_insn (target, temp);
}
else
convert_move (target, temp, unsignedp);
}
else if (GET_MODE (temp) == BLKmode && TREE_CODE (exp) == STRING_CST)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Handle copying a string constant into an array. The string
constant may be shorter than the array. So copy just the string's
actual length, and clear the rest. First get the size of the data
type of the string, which is actually the size of the target. */
rtx size = expr_size (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (size) == CONST_INT
&& INTVAL (size) < TREE_STRING_LENGTH (exp))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_block_move (target, temp, size);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
{
/* Compute the size of the data to copy from the string. */
tree copy_size
= size_binop (MIN_EXPR,
make_tree (sizetype, size),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
size_int (TREE_STRING_LENGTH (exp)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx copy_size_rtx = expand_expr (copy_size, NULL_RTX,
VOIDmode, 0);
rtx label = 0;
/* Copy that much. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
copy_size_rtx = convert_to_mode (ptr_mode, copy_size_rtx, 0);
emit_block_move (target, temp, copy_size_rtx);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Figure out how much is left in TARGET that we have to clear.
Do all calculations in ptr_mode. */
if (GET_CODE (copy_size_rtx) == CONST_INT)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
size = plus_constant (size, -INTVAL (copy_size_rtx));
target = adjust_address (target, BLKmode,
INTVAL (copy_size_rtx));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
{
size = expand_binop (ptr_mode, sub_optab, size,
copy_size_rtx, NULL_RTX, 0,
OPTAB_LIB_WIDEN);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
if (GET_MODE (copy_size_rtx) != Pmode)
copy_size_rtx = convert_memory_address (Pmode,
copy_size_rtx);
#endif
target = offset_address (target, copy_size_rtx,
highest_pow2_factor (copy_size));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
label = gen_label_rtx ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_cmp_and_jump_insns (size, const0_rtx, LT, NULL_RTX,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GET_MODE (size), 0, label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (size != const0_rtx)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
clear_storage (target, size);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (label)
emit_label (label);
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Handle calls that return values in multiple non-contiguous locations.
The Irix 6 ABI has examples of this. */
else if (GET_CODE (target) == PARALLEL)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_group_load (target, temp, int_size_in_bytes (TREE_TYPE (exp)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (GET_MODE (temp) == BLKmode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_block_move (target, temp, expr_size (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
emit_move_insn (target, temp);
}
/* If we don't want a value, return NULL_RTX. */
if (! want_value)
return NULL_RTX;
/* If we are supposed to return TEMP, do so as long as it isn't a MEM.
??? The latter test doesn't seem to make sense. */
else if (dont_return_target && GET_CODE (temp) != MEM)
return temp;
/* Return TARGET itself if it is a hard register. */
else if (want_value && GET_MODE (target) != BLKmode
&& ! (GET_CODE (target) == REG
&& REGNO (target) < FIRST_PSEUDO_REGISTER))
return copy_to_reg (target);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
return target;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Return 1 if EXP just contains zeros. */
static int
is_zeros_p (exp)
tree exp;
{
tree elt;
switch (TREE_CODE (exp))
{
case CONVERT_EXPR:
case NOP_EXPR:
case NON_LVALUE_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case VIEW_CONVERT_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return is_zeros_p (TREE_OPERAND (exp, 0));
case INTEGER_CST:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return integer_zerop (exp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case COMPLEX_CST:
return
is_zeros_p (TREE_REALPART (exp)) && is_zeros_p (TREE_IMAGPART (exp));
case REAL_CST:
return REAL_VALUES_IDENTICAL (TREE_REAL_CST (exp), dconst0);
case CONSTRUCTOR:
if (TREE_TYPE (exp) && TREE_CODE (TREE_TYPE (exp)) == SET_TYPE)
return CONSTRUCTOR_ELTS (exp) == NULL_TREE;
for (elt = CONSTRUCTOR_ELTS (exp); elt; elt = TREE_CHAIN (elt))
if (! is_zeros_p (TREE_VALUE (elt)))
return 0;
return 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
return 0;
}
}
/* Return 1 if EXP contains mostly (3/4) zeros. */
static int
mostly_zeros_p (exp)
tree exp;
{
if (TREE_CODE (exp) == CONSTRUCTOR)
{
int elts = 0, zeros = 0;
tree elt = CONSTRUCTOR_ELTS (exp);
if (TREE_TYPE (exp) && TREE_CODE (TREE_TYPE (exp)) == SET_TYPE)
{
/* If there are no ranges of true bits, it is all zero. */
return elt == NULL_TREE;
}
for (; elt; elt = TREE_CHAIN (elt))
{
/* We do not handle the case where the index is a RANGE_EXPR,
so the statistic will be somewhat inaccurate.
We do make a more accurate count in store_constructor itself,
so since this function is only used for nested array elements,
this should be close enough. */
if (mostly_zeros_p (TREE_VALUE (elt)))
zeros++;
elts++;
}
return 4 * zeros >= 3 * elts;
}
return is_zeros_p (exp);
}
/* Helper function for store_constructor.
TARGET, BITSIZE, BITPOS, MODE, EXP are as for store_field.
TYPE is the type of the CONSTRUCTOR, not the element type.
CLEARED is as for store_constructor.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ALIAS_SET is the alias set to use for any stores.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
This provides a recursive shortcut back to store_constructor when it isn't
necessary to go through store_field. This is so that we can pass through
the cleared field to let store_constructor know that we may not have to
clear a substructure if the outer structure has already been cleared. */
static void
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_constructor_field (target, bitsize, bitpos, mode, exp, type, cleared,
alias_set)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx target;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT bitsize;
HOST_WIDE_INT bitpos;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode;
tree exp, type;
int cleared;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int alias_set;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
if (TREE_CODE (exp) == CONSTRUCTOR
&& bitpos % BITS_PER_UNIT == 0
/* If we have a non-zero bitpos for a register target, then we just
let store_field do the bitfield handling. This is unlikely to
generate unnecessary clear instructions anyways. */
&& (bitpos == 0 || GET_CODE (target) == MEM))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (target) == MEM)
target
= adjust_address (target,
GET_MODE (target) == BLKmode
|| 0 != (bitpos
% GET_MODE_ALIGNMENT (GET_MODE (target)))
? BLKmode : VOIDmode, bitpos / BITS_PER_UNIT);
/* Update the alias set, if required. */
if (GET_CODE (target) == MEM && ! MEM_KEEP_ALIAS_SET_P (target)
&& MEM_ALIAS_SET (target) != 0)
{
target = copy_rtx (target);
set_mem_alias_set (target, alias_set);
}
store_constructor (exp, target, cleared, bitsize / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_field (target, bitsize, bitpos, mode, exp, VOIDmode, 0, type,
alias_set);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Store the value of constructor EXP into the rtx TARGET.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TARGET is either a REG or a MEM; we know it cannot conflict, since
safe_from_p has been called.
CLEARED is true if TARGET is known to have been zero'd.
SIZE is the number of bytes of TARGET we are allowed to modify: this
may not be the same as the size of EXP if we are assigning to a field
which has been packed to exclude padding bits. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
static void
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_constructor (exp, target, cleared, size)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree exp;
rtx target;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int cleared;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT size;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree type = TREE_TYPE (exp);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifdef WORD_REGISTER_OPERATIONS
HOST_WIDE_INT exp_size = int_size_in_bytes (type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
if (TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
|| TREE_CODE (type) == QUAL_UNION_TYPE)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree elt;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* We either clear the aggregate or indicate the value is dead. */
if ((TREE_CODE (type) == UNION_TYPE
|| TREE_CODE (type) == QUAL_UNION_TYPE)
&& ! cleared
&& ! CONSTRUCTOR_ELTS (exp))
/* If the constructor is empty, clear the union. */
{
clear_storage (target, expr_size (exp));
cleared = 1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we are building a static constructor into a register,
set the initial value as zero so we can fold the value into
a constant. But if more than one register is involved,
this probably loses. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (! cleared && GET_CODE (target) == REG && TREE_STATIC (exp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& GET_MODE_SIZE (GET_MODE (target)) <= UNITS_PER_WORD)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (target, CONST0_RTX (GET_MODE (target)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
cleared = 1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If the constructor has fewer fields than the structure
or if we are initializing the structure to mostly zeros,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
clear the whole structure first. Don't do this if TARGET is a
register whose mode size isn't equal to SIZE since clear_storage
can't handle this case. */
else if (! cleared && size > 0
&& ((list_length (CONSTRUCTOR_ELTS (exp))
!= fields_length (type))
|| mostly_zeros_p (exp))
&& (GET_CODE (target) != REG
|| ((HOST_WIDE_INT) GET_MODE_SIZE (GET_MODE (target))
== size)))
{
clear_storage (target, GEN_INT (size));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
cleared = 1;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! cleared)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, target));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Store each element of the constructor into
the corresponding field of TARGET. */
for (elt = CONSTRUCTOR_ELTS (exp); elt; elt = TREE_CHAIN (elt))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree field = TREE_PURPOSE (elt);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
tree value = TREE_VALUE (elt);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum machine_mode mode;
HOST_WIDE_INT bitsize;
HOST_WIDE_INT bitpos = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int unsignedp;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx to_rtx = target;
/* Just ignore missing fields.
We cleared the whole structure, above,
if any fields are missing. */
if (field == 0)
continue;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (cleared && is_zeros_p (value))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
continue;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (host_integerp (DECL_SIZE (field), 1))
bitsize = tree_low_cst (DECL_SIZE (field), 1);
else
bitsize = -1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
unsignedp = TREE_UNSIGNED (field);
mode = DECL_MODE (field);
if (DECL_BIT_FIELD (field))
mode = VOIDmode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
offset = DECL_FIELD_OFFSET (field);
if (host_integerp (offset, 0)
&& host_integerp (bit_position (field), 0))
{
bitpos = int_bit_position (field);
offset = 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
bitpos = tree_low_cst (DECL_FIELD_BIT_OFFSET (field), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (offset)
{
rtx offset_rtx;
if (contains_placeholder_p (offset))
offset = build (WITH_RECORD_EXPR, sizetype,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
offset, make_tree (TREE_TYPE (exp), target));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
offset_rtx = expand_expr (offset, NULL_RTX, VOIDmode, 0);
if (GET_CODE (to_rtx) != MEM)
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE (offset_rtx) != ptr_mode)
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE (offset_rtx) != Pmode)
offset_rtx = convert_memory_address (Pmode, offset_rtx);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = offset_address (to_rtx, offset_rtx,
highest_pow2_factor (offset));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_READONLY (field))
{
if (GET_CODE (to_rtx) == MEM)
to_rtx = copy_rtx (to_rtx);
RTX_UNCHANGING_P (to_rtx) = 1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifdef WORD_REGISTER_OPERATIONS
/* If this initializes a field that is smaller than a word, at the
start of a word, try to widen it to a full word.
This special case allows us to output C++ member function
initializations in a form that the optimizers can understand. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (target) == REG
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& bitsize < BITS_PER_WORD
&& bitpos % BITS_PER_WORD == 0
&& GET_MODE_CLASS (mode) == MODE_INT
&& TREE_CODE (value) == INTEGER_CST
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& exp_size >= 0
&& bitpos + BITS_PER_WORD <= exp_size * BITS_PER_UNIT)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
tree type = TREE_TYPE (value);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (TYPE_PRECISION (type) < BITS_PER_WORD)
{
type = type_for_size (BITS_PER_WORD, TREE_UNSIGNED (type));
value = convert (type, value);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (BYTES_BIG_ENDIAN)
value
= fold (build (LSHIFT_EXPR, type, value,
build_int_2 (BITS_PER_WORD - bitsize, 0)));
bitsize = BITS_PER_WORD;
mode = word_mode;
}
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (to_rtx) == MEM && !MEM_KEEP_ALIAS_SET_P (to_rtx)
&& DECL_NONADDRESSABLE_P (field))
{
to_rtx = copy_rtx (to_rtx);
MEM_KEEP_ALIAS_SET_P (to_rtx) = 1;
}
store_constructor_field (to_rtx, bitsize, bitpos, mode,
value, type, cleared,
get_alias_set (TREE_TYPE (field)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
else if (TREE_CODE (type) == ARRAY_TYPE)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree elt;
int i;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int need_to_clear;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree domain = TYPE_DOMAIN (type);
tree elttype = TREE_TYPE (type);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int const_bounds_p = (TYPE_MIN_VALUE (domain)
&& TYPE_MAX_VALUE (domain)
&& host_integerp (TYPE_MIN_VALUE (domain), 0)
&& host_integerp (TYPE_MAX_VALUE (domain), 0));
HOST_WIDE_INT minelt = 0;
HOST_WIDE_INT maxelt = 0;
/* If we have constant bounds for the range of the type, get them. */
if (const_bounds_p)
{
minelt = tree_low_cst (TYPE_MIN_VALUE (domain), 0);
maxelt = tree_low_cst (TYPE_MAX_VALUE (domain), 0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If the constructor has fewer elements than the array,
clear the whole array first. Similarly if this is
static constructor of a non-BLKmode object. */
if (cleared || (GET_CODE (target) == REG && TREE_STATIC (exp)))
need_to_clear = 1;
else
{
HOST_WIDE_INT count = 0, zero_count = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
need_to_clear = ! const_bounds_p;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* This loop is a more accurate version of the loop in
mostly_zeros_p (it handles RANGE_EXPR in an index).
It is also needed to check for missing elements. */
for (elt = CONSTRUCTOR_ELTS (exp);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
elt != NULL_TREE && ! need_to_clear;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
elt = TREE_CHAIN (elt))
{
tree index = TREE_PURPOSE (elt);
HOST_WIDE_INT this_node_count;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (index != NULL_TREE && TREE_CODE (index) == RANGE_EXPR)
{
tree lo_index = TREE_OPERAND (index, 0);
tree hi_index = TREE_OPERAND (index, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! host_integerp (lo_index, 1)
|| ! host_integerp (hi_index, 1))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
need_to_clear = 1;
break;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
this_node_count = (tree_low_cst (hi_index, 1)
- tree_low_cst (lo_index, 1) + 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
else
this_node_count = 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
count += this_node_count;
if (mostly_zeros_p (TREE_VALUE (elt)))
zero_count += this_node_count;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Clear the entire array first if there are any missing elements,
or if the incidence of zero elements is >= 75%. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! need_to_clear
&& (count < maxelt - minelt + 1 || 4 * zero_count >= 3 * count))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
need_to_clear = 1;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (need_to_clear && size > 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
if (! cleared)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
clear_storage (target, GEN_INT (size));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
cleared = 1;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (REG_P (target))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Inform later passes that the old value is dead. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, target));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Store each element of the constructor into
the corresponding element of TARGET, determined
by counting the elements. */
for (elt = CONSTRUCTOR_ELTS (exp), i = 0;
elt;
elt = TREE_CHAIN (elt), i++)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum machine_mode mode;
HOST_WIDE_INT bitsize;
HOST_WIDE_INT bitpos;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int unsignedp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tree value = TREE_VALUE (elt);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree index = TREE_PURPOSE (elt);
rtx xtarget = target;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (cleared && is_zeros_p (value))
continue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
unsignedp = TREE_UNSIGNED (elttype);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mode = TYPE_MODE (elttype);
if (mode == BLKmode)
bitsize = (host_integerp (TYPE_SIZE (elttype), 1)
? tree_low_cst (TYPE_SIZE (elttype), 1)
: -1);
else
bitsize = GET_MODE_BITSIZE (mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (index != NULL_TREE && TREE_CODE (index) == RANGE_EXPR)
{
tree lo_index = TREE_OPERAND (index, 0);
tree hi_index = TREE_OPERAND (index, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx index_r, pos_rtx, hi_r, loop_top, loop_end;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
struct nesting *loop;
HOST_WIDE_INT lo, hi, count;
tree position;
/* If the range is constant and "small", unroll the loop. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (const_bounds_p
&& host_integerp (lo_index, 0)
&& host_integerp (hi_index, 0)
&& (lo = tree_low_cst (lo_index, 0),
hi = tree_low_cst (hi_index, 0),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
count = hi - lo + 1,
(GET_CODE (target) != MEM
|| count <= 2
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (host_integerp (TYPE_SIZE (elttype), 1)
&& (tree_low_cst (TYPE_SIZE (elttype), 1) * count
<= 40 * 8)))))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
lo -= minelt; hi -= minelt;
for (; lo <= hi; lo++)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
bitpos = lo * tree_low_cst (TYPE_SIZE (elttype), 0);
if (GET_CODE (target) == MEM
&& !MEM_KEEP_ALIAS_SET_P (target)
&& TYPE_NONALIASED_COMPONENT (type))
{
target = copy_rtx (target);
MEM_KEEP_ALIAS_SET_P (target) = 1;
}
store_constructor_field
(target, bitsize, bitpos, mode, value, type, cleared,
get_alias_set (elttype));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
}
else
{
hi_r = expand_expr (hi_index, NULL_RTX, VOIDmode, 0);
loop_top = gen_label_rtx ();
loop_end = gen_label_rtx ();
unsignedp = TREE_UNSIGNED (domain);
index = build_decl (VAR_DECL, NULL_TREE, domain);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
index_r
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= gen_reg_rtx (promote_mode (domain, DECL_MODE (index),
&unsignedp, 0));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
SET_DECL_RTL (index, index_r);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (value) == SAVE_EXPR
&& SAVE_EXPR_RTL (value) == 0)
{
/* Make sure value gets expanded once before the
loop. */
expand_expr (value, const0_rtx, VOIDmode, 0);
emit_queue ();
}
store_expr (lo_index, index_r, 0);
loop = expand_start_loop (0);
/* Assign value to element index. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
position
= convert (ssizetype,
fold (build (MINUS_EXPR, TREE_TYPE (index),
index, TYPE_MIN_VALUE (domain))));
position = size_binop (MULT_EXPR, position,
convert (ssizetype,
TYPE_SIZE_UNIT (elttype)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pos_rtx = expand_expr (position, 0, VOIDmode, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
xtarget = offset_address (target, pos_rtx,
highest_pow2_factor (position));
xtarget = adjust_address (xtarget, mode, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (value) == CONSTRUCTOR)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_constructor (value, xtarget, cleared,
bitsize / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
store_expr (value, xtarget, 0);
expand_exit_loop_if_false (loop,
build (LT_EXPR, integer_type_node,
index, hi_index));
expand_increment (build (PREINCREMENT_EXPR,
TREE_TYPE (index),
index, integer_one_node), 0, 0);
expand_end_loop ();
emit_label (loop_end);
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if ((index != 0 && ! host_integerp (index, 0))
|| ! host_integerp (TYPE_SIZE (elttype), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree position;
if (index == 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
index = ssize_int (1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (minelt)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
index = convert (ssizetype,
fold (build (MINUS_EXPR, index,
TYPE_MIN_VALUE (domain))));
position = size_binop (MULT_EXPR, index,
convert (ssizetype,
TYPE_SIZE_UNIT (elttype)));
xtarget = offset_address (target,
expand_expr (position, 0, VOIDmode, 0),
highest_pow2_factor (position));
xtarget = adjust_address (xtarget, mode, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
store_expr (value, xtarget, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
{
if (index != 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
bitpos = ((tree_low_cst (index, 0) - minelt)
* tree_low_cst (TYPE_SIZE (elttype), 1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
bitpos = (i * tree_low_cst (TYPE_SIZE (elttype), 1));
if (GET_CODE (target) == MEM && !MEM_KEEP_ALIAS_SET_P (target)
&& TYPE_NONALIASED_COMPONENT (type))
{
target = copy_rtx (target);
MEM_KEEP_ALIAS_SET_P (target) = 1;
}
store_constructor_field (target, bitsize, bitpos, mode, value,
type, cleared, get_alias_set (elttype));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Set constructor assignments. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (TREE_CODE (type) == SET_TYPE)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tree elt = CONSTRUCTOR_ELTS (exp);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT nbytes = int_size_in_bytes (type), nbits;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree domain = TYPE_DOMAIN (type);
tree domain_min, domain_max, bitlength;
/* The default implementation strategy is to extract the constant
parts of the constructor, use that to initialize the target,
and then "or" in whatever non-constant ranges we need in addition.
If a large set is all zero or all ones, it is
probably better to set it using memset (if available) or bzero.
Also, if a large set has just a single range, it may also be
better to first clear all the first clear the set (using
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
bzero/memset), and set the bits we want. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Check for all zeros. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (elt == NULL_TREE && size > 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (!cleared)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
clear_storage (target, GEN_INT (size));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
domain_min = convert (sizetype, TYPE_MIN_VALUE (domain));
domain_max = convert (sizetype, TYPE_MAX_VALUE (domain));
bitlength = size_binop (PLUS_EXPR,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
size_diffop (domain_max, domain_min),
ssize_int (1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
nbits = tree_low_cst (bitlength, 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* For "small" sets, or "medium-sized" (up to 32 bytes) sets that
are "complicated" (more than one range), initialize (the
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
constant parts) by copying from a constant. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE (target) != BLKmode || nbits <= 2 * BITS_PER_WORD
|| (nbytes <= 32 && TREE_CHAIN (elt) != NULL_TREE))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int set_word_size = TYPE_ALIGN (TREE_TYPE (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode = mode_for_size (set_word_size, MODE_INT, 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
char *bit_buffer = (char *) alloca (nbits);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
HOST_WIDE_INT word = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int bit_pos = 0;
unsigned int ibit = 0;
unsigned int offset = 0; /* In bytes from beginning of set. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
elt = get_set_constructor_bits (exp, bit_buffer, nbits);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (;;)
{
if (bit_buffer[ibit])
{
if (BYTES_BIG_ENDIAN)
word |= (1 << (set_word_size - 1 - bit_pos));
else
word |= 1 << bit_pos;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
bit_pos++; ibit++;
if (bit_pos >= set_word_size || ibit == nbits)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (word != 0 || ! cleared)
{
rtx datum = GEN_INT (word);
rtx to_rtx;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* The assumption here is that it is safe to use
XEXP if the set is multi-word, but not if
it's single-word. */
if (GET_CODE (target) == MEM)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = adjust_address (target, mode, offset);
else if (offset == 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
to_rtx = target;
else
abort ();
emit_move_insn (to_rtx, datum);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (ibit == nbits)
break;
word = 0;
bit_pos = 0;
offset += set_word_size / BITS_PER_UNIT;
}
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (!cleared)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Don't bother clearing storage if the set is all ones. */
if (TREE_CHAIN (elt) != NULL_TREE
|| (TREE_PURPOSE (elt) == NULL_TREE
? nbits != 1
: ( ! host_integerp (TREE_VALUE (elt), 0)
|| ! host_integerp (TREE_PURPOSE (elt), 0)
|| (tree_low_cst (TREE_VALUE (elt), 0)
- tree_low_cst (TREE_PURPOSE (elt), 0) + 1
!= (HOST_WIDE_INT) nbits))))
clear_storage (target, expr_size (exp));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
for (; elt != NULL_TREE; elt = TREE_CHAIN (elt))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Start of range of element or NULL. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree startbit = TREE_PURPOSE (elt);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* End of range of element, or element value. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree endbit = TREE_VALUE (elt);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef TARGET_MEM_FUNCTIONS
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
HOST_WIDE_INT startb, endb;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx bitlength_rtx, startbit_rtx, endbit_rtx, targetx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
bitlength_rtx = expand_expr (bitlength,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
NULL_RTX, MEM, EXPAND_CONST_ADDRESS);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Handle non-range tuple element like [ expr ]. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (startbit == NULL_TREE)
{
startbit = save_expr (endbit);
endbit = startbit;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
startbit = convert (sizetype, startbit);
endbit = convert (sizetype, endbit);
if (! integer_zerop (domain_min))
{
startbit = size_binop (MINUS_EXPR, startbit, domain_min);
endbit = size_binop (MINUS_EXPR, endbit, domain_min);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
startbit_rtx = expand_expr (startbit, NULL_RTX, MEM,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
EXPAND_CONST_ADDRESS);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
endbit_rtx = expand_expr (endbit, NULL_RTX, MEM,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
EXPAND_CONST_ADDRESS);
if (REG_P (target))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
targetx
= assign_temp
((build_qualified_type (type_for_mode (GET_MODE (target), 0),
TYPE_QUAL_CONST)),
0, 1, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (targetx, target);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (GET_CODE (target) == MEM)
targetx = target;
else
abort ();
#ifdef TARGET_MEM_FUNCTIONS
/* Optimization: If startbit and endbit are
constants divisible by BITS_PER_UNIT,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
call memset instead. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_CODE (startbit) == INTEGER_CST
&& TREE_CODE (endbit) == INTEGER_CST
&& (startb = TREE_INT_CST_LOW (startbit)) % BITS_PER_UNIT == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (endb = TREE_INT_CST_LOW (endbit) + 1) % BITS_PER_UNIT == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (memset_libfunc, LCT_NORMAL,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
VOIDmode, 3,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
plus_constant (XEXP (targetx, 0),
startb / BITS_PER_UNIT),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Pmode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
constm1_rtx, TYPE_MODE (integer_type_node),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GEN_INT ((endb - startb) / BITS_PER_UNIT),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TYPE_MODE (sizetype));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__setbits"),
LCT_NORMAL, VOIDmode, 4, XEXP (targetx, 0),
Pmode, bitlength_rtx, TYPE_MODE (sizetype),
startbit_rtx, TYPE_MODE (sizetype),
endbit_rtx, TYPE_MODE (sizetype));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (REG_P (target))
emit_move_insn (target, targetx);
}
}
else
abort ();
}
/* Store the value of EXP (an expression tree)
into a subfield of TARGET which has mode MODE and occupies
BITSIZE bits, starting BITPOS bits from the start of TARGET.
If MODE is VOIDmode, it means that we are storing into a bit-field.
If VALUE_MODE is VOIDmode, return nothing in particular.
UNSIGNEDP is not used in this case.
Otherwise, return an rtx for the value stored. This rtx
has mode VALUE_MODE if that is convenient to do.
In this case, UNSIGNEDP must be nonzero if the value is an unsigned type.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TYPE is the type of the underlying object,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
ALIAS_SET is the alias set for the destination. This value will
(in general) be different from that for TARGET, since TARGET is a
reference to the containing structure. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
static rtx
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_field (target, bitsize, bitpos, mode, exp, value_mode, unsignedp, type,
alias_set)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx target;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bitsize;
HOST_WIDE_INT bitpos;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode;
tree exp;
enum machine_mode value_mode;
int unsignedp;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree type;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
int alias_set;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
HOST_WIDE_INT width_mask = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (exp) == ERROR_MARK)
return const0_rtx;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we have nothing to store, do nothing unless the expression has
side-effects. */
if (bitsize == 0)
return expand_expr (exp, const0_rtx, VOIDmode, 0);
else if (bitsize >=0 && bitsize < HOST_BITS_PER_WIDE_INT)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
width_mask = ((HOST_WIDE_INT) 1 << bitsize) - 1;
/* If we are storing into an unaligned field of an aligned union that is
in a register, we may have the mode of TARGET being an integer mode but
MODE == BLKmode. In that case, get an aligned object whose size and
alignment are the same as TARGET and store TARGET into it (we can avoid
the store if the field being stored is the entire width of TARGET). Then
call ourselves recursively to store the field into a BLKmode version of
that object. Finally, load from the object into TARGET. This is not
very efficient in general, but should only be slightly more expensive
than the otherwise-required unaligned accesses. Perhaps this can be
cleaned up later. */
if (mode == BLKmode
&& (GET_CODE (target) == REG || GET_CODE (target) == SUBREG))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx object
= assign_temp
(build_qualified_type (type, TYPE_QUALS (type) | TYPE_QUAL_CONST),
0, 1, 1);
rtx blk_object = adjust_address (object, BLKmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (bitsize != (HOST_WIDE_INT) GET_MODE_BITSIZE (GET_MODE (target)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (object, target);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_field (blk_object, bitsize, bitpos, mode, exp, VOIDmode, 0, type,
alias_set);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (target, object);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* We want to return the BLKmode version of the data. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return blk_object;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (target) == CONCAT)
{
/* We're storing into a struct containing a single __complex. */
if (bitpos != 0)
abort ();
return store_expr (exp, target, 0);
}
/* If the structure is in a register or if the component
is a bit field, we cannot use addressing to access it.
Use bit-field techniques or SUBREG to store in it. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mode == VOIDmode
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
|| (mode != BLKmode && ! direct_store[(int) mode]
&& GET_MODE_CLASS (mode) != MODE_COMPLEX_INT
&& GET_MODE_CLASS (mode) != MODE_COMPLEX_FLOAT)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| GET_CODE (target) == REG
|| GET_CODE (target) == SUBREG
/* If the field isn't aligned enough to store as an ordinary memref,
store it as a bit field. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (mode != BLKmode && SLOW_UNALIGNED_ACCESS (mode, MEM_ALIGN (target))
&& (MEM_ALIGN (target) < GET_MODE_ALIGNMENT (mode)
|| bitpos % GET_MODE_ALIGNMENT (mode)))
/* If the RHS and field are a constant size and the size of the
RHS isn't the same size as the bitfield, we must use bitfield
operations. */
|| (bitsize >= 0
&& TREE_CODE (TYPE_SIZE (TREE_TYPE (exp))) == INTEGER_CST
&& compare_tree_int (TYPE_SIZE (TREE_TYPE (exp)), bitsize) != 0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx temp = expand_expr (exp, NULL_RTX, VOIDmode, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If BITSIZE is narrower than the size of the type of EXP
we will be narrowing TEMP. Normally, what's wanted are the
low-order bits. However, if EXP's type is a record and this is
big-endian machine, we want the upper BITSIZE bits. */
if (BYTES_BIG_ENDIAN && GET_MODE_CLASS (GET_MODE (temp)) == MODE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& bitsize < (HOST_WIDE_INT) GET_MODE_BITSIZE (GET_MODE (temp))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE)
temp = expand_shift (RSHIFT_EXPR, GET_MODE (temp), temp,
size_int (GET_MODE_BITSIZE (GET_MODE (temp))
- bitsize),
temp, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Unless MODE is VOIDmode or BLKmode, convert TEMP to
MODE. */
if (mode != VOIDmode && mode != BLKmode
&& mode != TYPE_MODE (TREE_TYPE (exp)))
temp = convert_modes (mode, TYPE_MODE (TREE_TYPE (exp)), temp, 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If the modes of TARGET and TEMP are both BLKmode, both
must be in memory and BITPOS must be aligned on a byte
boundary. If so, we simply do a block copy. */
if (GET_MODE (target) == BLKmode && GET_MODE (temp) == BLKmode)
{
if (GET_CODE (target) != MEM || GET_CODE (temp) != MEM
|| bitpos % BITS_PER_UNIT != 0)
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
target = adjust_address (target, VOIDmode, bitpos / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_block_move (target, temp,
GEN_INT ((bitsize + BITS_PER_UNIT - 1)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/ BITS_PER_UNIT));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return value_mode == VOIDmode ? const0_rtx : target;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Store the value in the bitfield. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_bit_field (target, bitsize, bitpos, mode, temp,
int_size_in_bytes (type));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (value_mode != VOIDmode)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* The caller wants an rtx for the value.
If possible, avoid refetching from the bitfield itself. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (width_mask != 0
&& ! (GET_CODE (target) == MEM && MEM_VOLATILE_P (target)))
{
tree count;
enum machine_mode tmode;
if (unsignedp)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return expand_and (temp,
GEN_INT
(trunc_int_for_mode
(width_mask,
GET_MODE (temp) == VOIDmode
? value_mode
: GET_MODE (temp))), NULL_RTX);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tmode = GET_MODE (temp);
if (tmode == VOIDmode)
tmode = value_mode;
count = build_int_2 (GET_MODE_BITSIZE (tmode) - bitsize, 0);
temp = expand_shift (LSHIFT_EXPR, tmode, temp, count, 0, 0);
return expand_shift (RSHIFT_EXPR, tmode, temp, count, 0, 0);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return extract_bit_field (target, bitsize, bitpos, unsignedp,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
NULL_RTX, value_mode, VOIDmode,
int_size_in_bytes (type));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return const0_rtx;
}
else
{
rtx addr = XEXP (target, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx to_rtx = target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If a value is wanted, it must be the lhs;
so make the address stable for multiple use. */
if (value_mode != VOIDmode && GET_CODE (addr) != REG
&& ! CONSTANT_ADDRESS_P (addr)
/* A frame-pointer reference is already stable. */
&& ! (GET_CODE (addr) == PLUS
&& GET_CODE (XEXP (addr, 1)) == CONST_INT
&& (XEXP (addr, 0) == virtual_incoming_args_rtx
|| XEXP (addr, 0) == virtual_stack_vars_rtx)))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = replace_equiv_address (to_rtx, copy_to_reg (addr));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Now build a reference to just the desired component. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
to_rtx = adjust_address (target, mode, bitpos / BITS_PER_UNIT);
if (to_rtx == target)
to_rtx = copy_rtx (to_rtx);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
MEM_SET_IN_STRUCT_P (to_rtx, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!MEM_KEEP_ALIAS_SET_P (to_rtx) && MEM_ALIAS_SET (to_rtx) != 0)
set_mem_alias_set (to_rtx, alias_set);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return store_expr (exp, to_rtx, value_mode != VOIDmode);
}
}
/* Given an expression EXP that may be a COMPONENT_REF, a BIT_FIELD_REF,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
an ARRAY_REF, or an ARRAY_RANGE_REF, look for nested operations of these
codes and find the ultimate containing object, which we return.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We set *PBITSIZE to the size in bits that we want, *PBITPOS to the
bit position, and *PUNSIGNEDP to the signedness of the field.
If the position of the field is variable, we store a tree
giving the variable offset (in units) in *POFFSET.
This offset is in addition to the bit position.
If the position is not variable, we store 0 in *POFFSET.
If any of the extraction expressions is volatile,
we store 1 in *PVOLATILEP. Otherwise we don't change that.
If the field is a bit-field, *PMODE is set to VOIDmode. Otherwise, it
is a mode that can be used to access the field. In that case, *PBITSIZE
is redundant.
If the field describes a variable-sized object, *PMODE is set to
VOIDmode and *PBITSIZE is set to -1. An access cannot be made in
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
this case, but the address of the object can be found. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree
get_inner_reference (exp, pbitsize, pbitpos, poffset, pmode,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
punsignedp, pvolatilep)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree exp;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT *pbitsize;
HOST_WIDE_INT *pbitpos;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree *poffset;
enum machine_mode *pmode;
int *punsignedp;
int *pvolatilep;
{
tree size_tree = 0;
enum machine_mode mode = VOIDmode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree offset = size_zero_node;
tree bit_offset = bitsize_zero_node;
tree placeholder_ptr = 0;
tree tem;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* First get the mode, signedness, and size. We do this from just the
outermost expression. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_CODE (exp) == COMPONENT_REF)
{
size_tree = DECL_SIZE (TREE_OPERAND (exp, 1));
if (! DECL_BIT_FIELD (TREE_OPERAND (exp, 1)))
mode = DECL_MODE (TREE_OPERAND (exp, 1));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
*punsignedp = TREE_UNSIGNED (TREE_OPERAND (exp, 1));
}
else if (TREE_CODE (exp) == BIT_FIELD_REF)
{
size_tree = TREE_OPERAND (exp, 1);
*punsignedp = TREE_UNSIGNED (exp);
}
else
{
mode = TYPE_MODE (TREE_TYPE (exp));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*punsignedp = TREE_UNSIGNED (TREE_TYPE (exp));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (mode == BLKmode)
size_tree = TYPE_SIZE (TREE_TYPE (exp));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
*pbitsize = GET_MODE_BITSIZE (mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (size_tree != 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! host_integerp (size_tree, 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
mode = BLKmode, *pbitsize = -1;
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*pbitsize = tree_low_cst (size_tree, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Compute cumulative bit-offset for nested component-refs and array-refs,
and find the ultimate containing object. */
while (1)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (TREE_CODE (exp) == BIT_FIELD_REF)
bit_offset = size_binop (PLUS_EXPR, bit_offset, TREE_OPERAND (exp, 2));
else if (TREE_CODE (exp) == COMPONENT_REF)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree field = TREE_OPERAND (exp, 1);
tree this_offset = DECL_FIELD_OFFSET (field);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If this field hasn't been filled in yet, don't go
past it. This should only happen when folding expressions
made during type construction. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (this_offset == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (! TREE_CONSTANT (this_offset)
&& contains_placeholder_p (this_offset))
this_offset = build (WITH_RECORD_EXPR, sizetype, this_offset, exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
offset = size_binop (PLUS_EXPR, offset, this_offset);
bit_offset = size_binop (PLUS_EXPR, bit_offset,
DECL_FIELD_BIT_OFFSET (field));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* ??? Right now we don't do anything with DECL_OFFSET_ALIGN. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (TREE_CODE (exp) == ARRAY_REF
|| TREE_CODE (exp) == ARRAY_RANGE_REF)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree index = TREE_OPERAND (exp, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree array = TREE_OPERAND (exp, 0);
tree domain = TYPE_DOMAIN (TREE_TYPE (array));
tree low_bound = (domain ? TYPE_MIN_VALUE (domain) : 0);
tree unit_size = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (array)));
/* We assume all arrays have sizes that are a multiple of a byte.
First subtract the lower bound, if any, in the type of the
index, then convert to sizetype and multiply by the size of the
array element. */
if (low_bound != 0 && ! integer_zerop (low_bound))
index = fold (build (MINUS_EXPR, TREE_TYPE (index),
index, low_bound));
/* If the index has a self-referential type, pass it to a
WITH_RECORD_EXPR; if the component size is, pass our
component to one. */
if (! TREE_CONSTANT (index)
&& contains_placeholder_p (index))
index = build (WITH_RECORD_EXPR, TREE_TYPE (index), index, exp);
if (! TREE_CONSTANT (unit_size)
&& contains_placeholder_p (unit_size))
unit_size = build (WITH_RECORD_EXPR, sizetype, unit_size, array);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
offset = size_binop (PLUS_EXPR, offset,
size_binop (MULT_EXPR,
convert (sizetype, index),
unit_size));
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (TREE_CODE (exp) == PLACEHOLDER_EXPR)
{
tree new = find_placeholder (exp, &placeholder_ptr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we couldn't find the replacement, return the PLACEHOLDER_EXPR.
We might have been called from tree optimization where we
haven't set up an object yet. */
if (new == 0)
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
exp = new;
continue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (TREE_CODE (exp) != NON_LVALUE_EXPR
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TREE_CODE (exp) != VIEW_CONVERT_EXPR
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& ! ((TREE_CODE (exp) == NOP_EXPR
|| TREE_CODE (exp) == CONVERT_EXPR)
&& (TYPE_MODE (TREE_TYPE (exp))
== TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))))))
break;
/* If any reference in the chain is volatile, the effect is volatile. */
if (TREE_THIS_VOLATILE (exp))
*pvolatilep = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
exp = TREE_OPERAND (exp, 0);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If OFFSET is constant, see if we can return the whole thing as a
constant bit position. Otherwise, split it up. */
if (host_integerp (offset, 0)
&& 0 != (tem = size_binop (MULT_EXPR, convert (bitsizetype, offset),
bitsize_unit_node))
&& 0 != (tem = size_binop (PLUS_EXPR, tem, bit_offset))
&& host_integerp (tem, 0))
*pbitpos = tree_low_cst (tem, 0), *poffset = 0;
else
*pbitpos = tree_low_cst (bit_offset, 0), *poffset = offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
*pmode = mode;
return exp;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Return 1 if T is an expression that get_inner_reference handles. */
int
handled_component_p (t)
tree t;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
switch (TREE_CODE (t))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case BIT_FIELD_REF:
case COMPONENT_REF:
case ARRAY_REF:
case ARRAY_RANGE_REF:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
return 1;
case NOP_EXPR:
case CONVERT_EXPR:
return (TYPE_MODE (TREE_TYPE (t))
== TYPE_MODE (TREE_TYPE (TREE_OPERAND (t, 0))));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Given an rtx VALUE that may contain additions and multiplications, return
an equivalent value that just refers to a register, memory, or constant.
This is done by generating instructions to perform the arithmetic and
returning a pseudo-register containing the value.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
The returned value may be a REG, SUBREG, MEM or constant. */
rtx
force_operand (value, target)
rtx value, target;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
optab binoptab = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Use a temporary to force order of execution of calls to
`force_operand'. */
rtx tmp;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx op2;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Use subtarget as the target for operand 0 of a binary operation. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx subtarget = get_subtarget (target);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Check for a PIC address load. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if ((GET_CODE (value) == PLUS || GET_CODE (value) == MINUS)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& XEXP (value, 0) == pic_offset_table_rtx
&& (GET_CODE (XEXP (value, 1)) == SYMBOL_REF
|| GET_CODE (XEXP (value, 1)) == LABEL_REF
|| GET_CODE (XEXP (value, 1)) == CONST))
{
if (!subtarget)
subtarget = gen_reg_rtx (GET_MODE (value));
emit_move_insn (subtarget, value);
return subtarget;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (value) == PLUS)
binoptab = add_optab;
else if (GET_CODE (value) == MINUS)
binoptab = sub_optab;
else if (GET_CODE (value) == MULT)
{
op2 = XEXP (value, 1);
if (!CONSTANT_P (op2)
&& !(GET_CODE (op2) == REG && op2 != subtarget))
subtarget = 0;
tmp = force_operand (XEXP (value, 0), subtarget);
return expand_mult (GET_MODE (value), tmp,
force_operand (op2, NULL_RTX),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
target, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (binoptab)
{
op2 = XEXP (value, 1);
if (!CONSTANT_P (op2)
&& !(GET_CODE (op2) == REG && op2 != subtarget))
subtarget = 0;
if (binoptab == sub_optab && GET_CODE (op2) == CONST_INT)
{
binoptab = add_optab;
op2 = negate_rtx (GET_MODE (value), op2);
}
/* Check for an addition with OP2 a constant integer and our first
operand a PLUS of a virtual register and something else. In that
case, we want to emit the sum of the virtual register and the
constant first and then add the other value. This allows virtual
register instantiation to simply modify the constant rather than
creating another one around this addition. */
if (binoptab == add_optab && GET_CODE (op2) == CONST_INT
&& GET_CODE (XEXP (value, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (value, 0), 0)) == REG
&& REGNO (XEXP (XEXP (value, 0), 0)) >= FIRST_VIRTUAL_REGISTER
&& REGNO (XEXP (XEXP (value, 0), 0)) <= LAST_VIRTUAL_REGISTER)
{
rtx temp = expand_binop (GET_MODE (value), binoptab,
XEXP (XEXP (value, 0), 0), op2,
subtarget, 0, OPTAB_LIB_WIDEN);
return expand_binop (GET_MODE (value), binoptab, temp,
force_operand (XEXP (XEXP (value, 0), 1), 0),
target, 0, OPTAB_LIB_WIDEN);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tmp = force_operand (XEXP (value, 0), subtarget);
return expand_binop (GET_MODE (value), binoptab, tmp,
force_operand (op2, NULL_RTX),
target, 0, OPTAB_LIB_WIDEN);
/* We give UNSIGNEDP = 0 to expand_binop
because the only operations we are expanding here are signed ones. */
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#ifdef INSN_SCHEDULING
/* On machines that have insn scheduling, we want all memory reference to be
explicit, so we need to deal with such paradoxical SUBREGs. */
if (GET_CODE (value) == SUBREG && GET_CODE (SUBREG_REG (value)) == MEM
&& (GET_MODE_SIZE (GET_MODE (value))
> GET_MODE_SIZE (GET_MODE (SUBREG_REG (value)))))
value
= simplify_gen_subreg (GET_MODE (value),
force_reg (GET_MODE (SUBREG_REG (value)),
force_operand (SUBREG_REG (value),
NULL_RTX)),
GET_MODE (SUBREG_REG (value)),
SUBREG_BYTE (value));
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Subroutine of expand_expr: return nonzero iff there is no way that
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
EXP can reference X, which is being modified. TOP_P is nonzero if this
call is going to be used to determine whether we need a temporary
for EXP, as opposed to a recursive call to this function.
It is always safe for this routine to return zero since it merely
searches for optimization opportunities. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
safe_from_p (x, exp, top_p)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx x;
tree exp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int top_p;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx exp_rtl = 0;
int i, nops;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static tree save_expr_list;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (x == 0
/* If EXP has varying size, we MUST use a target since we currently
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
have no way of allocating temporaries of variable size
(except for arrays that have TYPE_ARRAY_MAX_SIZE set).
So we assume here that something at a higher level has prevented a
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
clash. This is somewhat bogus, but the best we can do. Only
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do this when X is BLKmode and when we are at the top level. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (top_p && TREE_TYPE (exp) != 0 && COMPLETE_TYPE_P (TREE_TYPE (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& TREE_CODE (TYPE_SIZE (TREE_TYPE (exp))) != INTEGER_CST
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (TREE_CODE (TREE_TYPE (exp)) != ARRAY_TYPE
|| TYPE_ARRAY_MAX_SIZE (TREE_TYPE (exp)) == NULL_TREE
|| TREE_CODE (TYPE_ARRAY_MAX_SIZE (TREE_TYPE (exp)))
!= INTEGER_CST)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& GET_MODE (x) == BLKmode)
/* If X is in the outgoing argument area, it is always safe. */
|| (GET_CODE (x) == MEM
&& (XEXP (x, 0) == virtual_outgoing_args_rtx
|| (GET_CODE (XEXP (x, 0)) == PLUS
&& XEXP (XEXP (x, 0), 0) == virtual_outgoing_args_rtx))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 1;
/* If this is a subreg of a hard register, declare it unsafe, otherwise,
find the underlying pseudo. */
if (GET_CODE (x) == SUBREG)
{
x = SUBREG_REG (x);
if (GET_CODE (x) == REG && REGNO (x) < FIRST_PSEUDO_REGISTER)
return 0;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* A SAVE_EXPR might appear many times in the expression passed to the
top-level safe_from_p call, and if it has a complex subexpression,
examining it multiple times could result in a combinatorial explosion.
E.g. on an Alpha running at least 200MHz, a Fortran test case compiled
with optimization took about 28 minutes to compile -- even though it was
only a few lines long. So we mark each SAVE_EXPR we see with TREE_PRIVATE
and turn that off when we are done. We keep a list of the SAVE_EXPRs
we have processed. Note that the only test of top_p was above. */
if (top_p)
{
int rtn;
tree t;
save_expr_list = 0;
rtn = safe_from_p (x, exp, 0);
for (t = save_expr_list; t != 0; t = TREE_CHAIN (t))
TREE_PRIVATE (TREE_PURPOSE (t)) = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return rtn;
}
/* Now look at our tree code and possibly recurse. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
switch (TREE_CODE_CLASS (TREE_CODE (exp)))
{
case 'd':
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
exp_rtl = DECL_RTL_SET_P (exp) ? DECL_RTL (exp) : NULL_RTX;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
case 'c':
return 1;
case 'x':
if (TREE_CODE (exp) == TREE_LIST)
return ((TREE_VALUE (exp) == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
|| safe_from_p (x, TREE_VALUE (exp), 0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& (TREE_CHAIN (exp) == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
|| safe_from_p (x, TREE_CHAIN (exp), 0)));
else if (TREE_CODE (exp) == ERROR_MARK)
return 1; /* An already-visited SAVE_EXPR? */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
return 0;
case '1':
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return safe_from_p (x, TREE_OPERAND (exp, 0), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case '2':
case '<':
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return (safe_from_p (x, TREE_OPERAND (exp, 0), 0)
&& safe_from_p (x, TREE_OPERAND (exp, 1), 0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case 'e':
case 'r':
/* Now do code-specific tests. EXP_RTL is set to any rtx we find in
the expression. If it is set, we conflict iff we are that rtx or
both are in memory. Otherwise, we check all operands of the
expression recursively. */
switch (TREE_CODE (exp))
{
case ADDR_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If the operand is static or we are static, we can't conflict.
Likewise if we don't conflict with the operand at all. */
if (staticp (TREE_OPERAND (exp, 0))
|| TREE_STATIC (exp)
|| safe_from_p (x, TREE_OPERAND (exp, 0), 0))
return 1;
/* Otherwise, the only way this can conflict is if we are taking
the address of a DECL a that address if part of X, which is
very rare. */
exp = TREE_OPERAND (exp, 0);
if (DECL_P (exp))
{
if (!DECL_RTL_SET_P (exp)
|| GET_CODE (DECL_RTL (exp)) != MEM)
return 0;
else
exp_rtl = XEXP (DECL_RTL (exp), 0);
}
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case INDIRECT_REF:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (x) == MEM
&& alias_sets_conflict_p (MEM_ALIAS_SET (x),
get_alias_set (exp)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 0;
break;
case CALL_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Assume that the call will clobber all hard registers and
all of memory. */
if ((GET_CODE (x) == REG && REGNO (x) < FIRST_PSEUDO_REGISTER)
|| GET_CODE (x) == MEM)
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
case RTL_EXPR:
/* If a sequence exists, we would have to scan every instruction
in the sequence to see if it was safe. This is probably not
worthwhile. */
if (RTL_EXPR_SEQUENCE (exp))
return 0;
exp_rtl = RTL_EXPR_RTL (exp);
break;
case WITH_CLEANUP_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
exp_rtl = WITH_CLEANUP_EXPR_RTL (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
case CLEANUP_POINT_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return safe_from_p (x, TREE_OPERAND (exp, 0), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case SAVE_EXPR:
exp_rtl = SAVE_EXPR_RTL (exp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (exp_rtl)
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we've already scanned this, don't do it again. Otherwise,
show we've scanned it and record for clearing the flag if we're
going on. */
if (TREE_PRIVATE (exp))
return 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TREE_PRIVATE (exp) = 1;
if (! safe_from_p (x, TREE_OPERAND (exp, 0), 0))
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TREE_PRIVATE (exp) = 0;
return 0;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
save_expr_list = tree_cons (exp, NULL_TREE, save_expr_list);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case BIND_EXPR:
/* The only operand we look at is operand 1. The rest aren't
part of the expression. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return safe_from_p (x, TREE_OPERAND (exp, 1), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case METHOD_CALL_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* This takes an rtx argument, but shouldn't appear here. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* If we have an rtx, we do not need to scan our operands. */
if (exp_rtl)
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
nops = first_rtl_op (TREE_CODE (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (i = 0; i < nops; i++)
if (TREE_OPERAND (exp, i) != 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& ! safe_from_p (x, TREE_OPERAND (exp, i), 0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If this is a language-specific tree code, it may require
special handling. */
if ((unsigned int) TREE_CODE (exp)
>= (unsigned int) LAST_AND_UNUSED_TREE_CODE
&& !(*lang_hooks.safe_from_p) (x, exp))
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* If we have an rtl, find any enclosed object. Then see if we conflict
with it. */
if (exp_rtl)
{
if (GET_CODE (exp_rtl) == SUBREG)
{
exp_rtl = SUBREG_REG (exp_rtl);
if (GET_CODE (exp_rtl) == REG
&& REGNO (exp_rtl) < FIRST_PSEUDO_REGISTER)
return 0;
}
/* If the rtl is X, then it is not safe. Otherwise, it is unless both
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
are memory and they conflict. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return ! (rtx_equal_p (x, exp_rtl)
|| (GET_CODE (x) == MEM && GET_CODE (exp_rtl) == MEM
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& true_dependence (exp_rtl, GET_MODE (x), x,
rtx_addr_varies_p)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* If we reach here, it is safe. */
return 1;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Subroutine of expand_expr: return rtx if EXP is a
variable or parameter; else return 0. */
static rtx
var_rtx (exp)
tree exp;
{
STRIP_NOPS (exp);
switch (TREE_CODE (exp))
{
case PARM_DECL:
case VAR_DECL:
return DECL_RTL (exp);
default:
return 0;
}
}
#ifdef MAX_INTEGER_COMPUTATION_MODE
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
check_max_integer_computation_mode (exp)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree exp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum tree_code code;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Strip any NOPs that don't change the mode. */
STRIP_NOPS (exp);
code = TREE_CODE (exp);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* We must allow conversions of constants to MAX_INTEGER_COMPUTATION_MODE. */
if (code == NOP_EXPR
&& TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST)
return;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* First check the type of the overall operation. We need only look at
unary, binary and relational operations. */
if (TREE_CODE_CLASS (code) == '1'
|| TREE_CODE_CLASS (code) == '2'
|| TREE_CODE_CLASS (code) == '<')
{
mode = TYPE_MODE (TREE_TYPE (exp));
if (GET_MODE_CLASS (mode) == MODE_INT
&& mode > MAX_INTEGER_COMPUTATION_MODE)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
internal_error ("unsupported wide integer operation");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
/* Check operand of a unary op. */
if (TREE_CODE_CLASS (code) == '1')
{
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& mode > MAX_INTEGER_COMPUTATION_MODE)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
internal_error ("unsupported wide integer operation");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Check operands of a binary/comparison op. */
if (TREE_CODE_CLASS (code) == '2' || TREE_CODE_CLASS (code) == '<')
{
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& mode > MAX_INTEGER_COMPUTATION_MODE)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
internal_error ("unsupported wide integer operation");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 1)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& mode > MAX_INTEGER_COMPUTATION_MODE)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
internal_error ("unsupported wide integer operation");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
}
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Return the highest power of two that EXP is known to be a multiple of.
This is used in updating alignment of MEMs in array references. */
static HOST_WIDE_INT
highest_pow2_factor (exp)
tree exp;
{
HOST_WIDE_INT c0, c1;
switch (TREE_CODE (exp))
{
case INTEGER_CST:
/* If the integer is expressable in a HOST_WIDE_INT, we can find the
lowest bit that's a one. If the result is zero, return
BIGGEST_ALIGNMENT. We need to handle this case since we can find it
in a COND_EXPR, a MIN_EXPR, or a MAX_EXPR. If the constant overlows,
we have an erroneous program, so return BIGGEST_ALIGNMENT to avoid any
later ICE. */
if (TREE_CONSTANT_OVERFLOW (exp)
|| integer_zerop (exp))
return BIGGEST_ALIGNMENT;
else if (host_integerp (exp, 0))
{
c0 = tree_low_cst (exp, 0);
c0 = c0 < 0 ? - c0 : c0;
return c0 & -c0;
}
break;
case PLUS_EXPR: case MINUS_EXPR: case MIN_EXPR: case MAX_EXPR:
c0 = highest_pow2_factor (TREE_OPERAND (exp, 0));
c1 = highest_pow2_factor (TREE_OPERAND (exp, 1));
return MIN (c0, c1);
case MULT_EXPR:
c0 = highest_pow2_factor (TREE_OPERAND (exp, 0));
c1 = highest_pow2_factor (TREE_OPERAND (exp, 1));
return c0 * c1;
case ROUND_DIV_EXPR: case TRUNC_DIV_EXPR: case FLOOR_DIV_EXPR:
case CEIL_DIV_EXPR:
if (integer_pow2p (TREE_OPERAND (exp, 1))
&& host_integerp (TREE_OPERAND (exp, 1), 1))
{
c0 = highest_pow2_factor (TREE_OPERAND (exp, 0));
c1 = tree_low_cst (TREE_OPERAND (exp, 1), 1);
return MAX (1, c0 / c1);
}
break;
case NON_LVALUE_EXPR: case NOP_EXPR: case CONVERT_EXPR:
case SAVE_EXPR: case WITH_RECORD_EXPR:
return highest_pow2_factor (TREE_OPERAND (exp, 0));
case COMPOUND_EXPR:
return highest_pow2_factor (TREE_OPERAND (exp, 1));
case COND_EXPR:
c0 = highest_pow2_factor (TREE_OPERAND (exp, 1));
c1 = highest_pow2_factor (TREE_OPERAND (exp, 2));
return MIN (c0, c1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
default:
break;
}
return 1;
}
/* Return an object on the placeholder list that matches EXP, a
PLACEHOLDER_EXPR. An object "matches" if it is of the type of the
PLACEHOLDER_EXPR or a pointer type to it. For further information, see
tree.def. If no such object is found, return 0. If PLIST is nonzero, it
is a location which initially points to a starting location in the
placeholder list (zero means start of the list) and where a pointer into
the placeholder list at which the object is found is placed. */
tree
find_placeholder (exp, plist)
tree exp;
tree *plist;
{
tree type = TREE_TYPE (exp);
tree placeholder_expr;
for (placeholder_expr
= plist && *plist ? TREE_CHAIN (*plist) : placeholder_list;
placeholder_expr != 0;
placeholder_expr = TREE_CHAIN (placeholder_expr))
{
tree need_type = TYPE_MAIN_VARIANT (type);
tree elt;
/* Find the outermost reference that is of the type we want. If none,
see if any object has a type that is a pointer to the type we
want. */
for (elt = TREE_PURPOSE (placeholder_expr); elt != 0;
elt = ((TREE_CODE (elt) == COMPOUND_EXPR
|| TREE_CODE (elt) == COND_EXPR)
? TREE_OPERAND (elt, 1)
: (TREE_CODE_CLASS (TREE_CODE (elt)) == 'r'
|| TREE_CODE_CLASS (TREE_CODE (elt)) == '1'
|| TREE_CODE_CLASS (TREE_CODE (elt)) == '2'
|| TREE_CODE_CLASS (TREE_CODE (elt)) == 'e')
? TREE_OPERAND (elt, 0) : 0))
if (TYPE_MAIN_VARIANT (TREE_TYPE (elt)) == need_type)
{
if (plist)
*plist = placeholder_expr;
return elt;
}
for (elt = TREE_PURPOSE (placeholder_expr); elt != 0;
elt
= ((TREE_CODE (elt) == COMPOUND_EXPR
|| TREE_CODE (elt) == COND_EXPR)
? TREE_OPERAND (elt, 1)
: (TREE_CODE_CLASS (TREE_CODE (elt)) == 'r'
|| TREE_CODE_CLASS (TREE_CODE (elt)) == '1'
|| TREE_CODE_CLASS (TREE_CODE (elt)) == '2'
|| TREE_CODE_CLASS (TREE_CODE (elt)) == 'e')
? TREE_OPERAND (elt, 0) : 0))
if (POINTER_TYPE_P (TREE_TYPE (elt))
&& (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_TYPE (elt)))
== need_type))
{
if (plist)
*plist = placeholder_expr;
return build1 (INDIRECT_REF, need_type, elt);
}
}
return 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* expand_expr: generate code for computing expression EXP.
An rtx for the computed value is returned. The value is never null.
In the case of a void EXP, const0_rtx is returned.
The value may be stored in TARGET if TARGET is nonzero.
TARGET is just a suggestion; callers must assume that
the rtx returned may not be the same as TARGET.
If TARGET is CONST0_RTX, it means that the value will be ignored.
If TMODE is not VOIDmode, it suggests generating the
result in mode TMODE. But this is done only when convenient.
Otherwise, TMODE is ignored and the value generated in its natural mode.
TMODE is just a suggestion; callers must assume that
the rtx returned may not have mode TMODE.
Note that TARGET may have neither TMODE nor MODE. In that case, it
probably will not be used.
If MODIFIER is EXPAND_SUM then when EXP is an addition
we can return an rtx of the form (MULT (REG ...) (CONST_INT ...))
or a nest of (PLUS ...) and (MINUS ...) where the terms are
products as above, or REG or MEM, or constant.
Ordinarily in such cases we would output mul or add instructions
and then return a pseudo reg containing the sum.
EXPAND_INITIALIZER is much like EXPAND_SUM except that
it also marks a label as absolutely required (it can't be dead).
It also makes a ZERO_EXTEND or SIGN_EXTEND instead of emitting extend insns.
This is used for outputting expressions used in initializers.
EXPAND_CONST_ADDRESS says that it is okay to return a MEM
with a constant address even if that address is not normally legitimate.
EXPAND_INITIALIZER and EXPAND_SUM also have this effect. */
rtx
expand_expr (exp, target, tmode, modifier)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree exp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx target;
enum machine_mode tmode;
enum expand_modifier modifier;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx op0, op1, temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree type = TREE_TYPE (exp);
int unsignedp = TREE_UNSIGNED (type);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum machine_mode mode;
enum tree_code code = TREE_CODE (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
optab this_optab;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
rtx subtarget, original_target;
int ignore;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree context;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Handle ERROR_MARK before anybody tries to access its type. */
if (TREE_CODE (exp) == ERROR_MARK || TREE_CODE (type) == ERROR_MARK)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
op0 = CONST0_RTX (tmode);
if (op0 != 0)
return op0;
return const0_rtx;
}
mode = TYPE_MODE (type);
/* Use subtarget as the target for operand 0 of a binary operation. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
subtarget = get_subtarget (target);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
original_target = target;
ignore = (target == const0_rtx
|| ((code == NON_LVALUE_EXPR || code == NOP_EXPR
|| code == CONVERT_EXPR || code == REFERENCE_EXPR
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| code == COND_EXPR || code == VIEW_CONVERT_EXPR)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& TREE_CODE (type) == VOID_TYPE));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we are going to ignore this result, we need only do something
if there is a side-effect somewhere in the expression. If there
is, short-circuit the most common cases here. Note that we must
not call expand_expr with anything but const0_rtx in case this
is an initial expansion of a size that contains a PLACEHOLDER_EXPR. */
if (ignore)
{
if (! TREE_SIDE_EFFECTS (exp))
return const0_rtx;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Ensure we reference a volatile object even if value is ignored, but
don't do this if all we are doing is taking its address. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_THIS_VOLATILE (exp)
&& TREE_CODE (exp) != FUNCTION_DECL
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& mode != VOIDmode && mode != BLKmode
&& modifier != EXPAND_CONST_ADDRESS)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = expand_expr (exp, NULL_RTX, VOIDmode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (temp) == MEM)
temp = copy_to_reg (temp);
return const0_rtx;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (TREE_CODE_CLASS (code) == '1' || code == COMPONENT_REF
|| code == INDIRECT_REF || code == BUFFER_REF)
return expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode,
modifier);
else if (TREE_CODE_CLASS (code) == '2' || TREE_CODE_CLASS (code) == '<'
|| code == ARRAY_REF || code == ARRAY_RANGE_REF)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode, modifier);
expand_expr (TREE_OPERAND (exp, 1), const0_rtx, VOIDmode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return const0_rtx;
}
else if ((code == TRUTH_ANDIF_EXPR || code == TRUTH_ORIF_EXPR)
&& ! TREE_SIDE_EFFECTS (TREE_OPERAND (exp, 1)))
/* If the second operand has no side effects, just evaluate
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
the first. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode,
modifier);
else if (code == BIT_FIELD_REF)
{
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode, modifier);
expand_expr (TREE_OPERAND (exp, 1), const0_rtx, VOIDmode, modifier);
expand_expr (TREE_OPERAND (exp, 2), const0_rtx, VOIDmode, modifier);
return const0_rtx;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
target = 0;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef MAX_INTEGER_COMPUTATION_MODE
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Only check stuff here if the mode we want is different from the mode
of the expression; if it's the same, check_max_integer_computiation_mode
will handle it. Do we really need to check this stuff at all? */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (target
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& GET_MODE (target) != mode
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& TREE_CODE (exp) != INTEGER_CST
&& TREE_CODE (exp) != PARM_DECL
&& TREE_CODE (exp) != ARRAY_REF
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TREE_CODE (exp) != ARRAY_RANGE_REF
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& TREE_CODE (exp) != COMPONENT_REF
&& TREE_CODE (exp) != BIT_FIELD_REF
&& TREE_CODE (exp) != INDIRECT_REF
&& TREE_CODE (exp) != CALL_EXPR
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TREE_CODE (exp) != VAR_DECL
&& TREE_CODE (exp) != RTL_EXPR)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
enum machine_mode mode = GET_MODE (target);
if (GET_MODE_CLASS (mode) == MODE_INT
&& mode > MAX_INTEGER_COMPUTATION_MODE)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
internal_error ("unsupported wide integer operation");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (tmode != mode
&& TREE_CODE (exp) != INTEGER_CST
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& TREE_CODE (exp) != PARM_DECL
&& TREE_CODE (exp) != ARRAY_REF
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TREE_CODE (exp) != ARRAY_RANGE_REF
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& TREE_CODE (exp) != COMPONENT_REF
&& TREE_CODE (exp) != BIT_FIELD_REF
&& TREE_CODE (exp) != INDIRECT_REF
&& TREE_CODE (exp) != VAR_DECL
&& TREE_CODE (exp) != CALL_EXPR
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& TREE_CODE (exp) != RTL_EXPR
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& GET_MODE_CLASS (tmode) == MODE_INT
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& tmode > MAX_INTEGER_COMPUTATION_MODE)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
internal_error ("unsupported wide integer operation");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
check_max_integer_computation_mode (exp);
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If will do cse, generate all results into pseudo registers
since 1) that allows cse to find more things
and 2) otherwise cse could produce an insn the machine
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
cannot support. And exception is a CONSTRUCTOR into a multi-word
MEM: that's much more likely to be most efficient into the MEM. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (! cse_not_expected && mode != BLKmode && target
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (GET_CODE (target) != REG || REGNO (target) < FIRST_PSEUDO_REGISTER)
&& ! (code == CONSTRUCTOR && GET_MODE_SIZE (mode) > UNITS_PER_WORD))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
target = subtarget;
switch (code)
{
case LABEL_DECL:
{
tree function = decl_function_context (exp);
/* Handle using a label in a containing function. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (function != current_function_decl
&& function != inline_function_decl && function != 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
struct function *p = find_function_data (function);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
p->expr->x_forced_labels
= gen_rtx_EXPR_LIST (VOIDmode, label_rtx (exp),
p->expr->x_forced_labels);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
else
{
if (modifier == EXPAND_INITIALIZER)
forced_labels = gen_rtx_EXPR_LIST (VOIDmode,
label_rtx (exp),
forced_labels);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
temp = gen_rtx_MEM (FUNCTION_MODE,
gen_rtx_LABEL_REF (Pmode, label_rtx (exp)));
if (function != current_function_decl
&& function != inline_function_decl && function != 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
LABEL_REF_NONLOCAL_P (XEXP (temp, 0)) = 1;
return temp;
}
case PARM_DECL:
if (DECL_RTL (exp) == 0)
{
error_with_decl (exp, "prior parameter's size depends on `%s'");
return CONST0_RTX (mode);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* ... fall through ... */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case VAR_DECL:
/* If a static var's type was incomplete when the decl was written,
but the type is complete now, lay out the decl now. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (DECL_SIZE (exp) == 0 && COMPLETE_TYPE_P (TREE_TYPE (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& (TREE_STATIC (exp) || DECL_EXTERNAL (exp)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx value = DECL_RTL_IF_SET (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
layout_decl (exp, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If the RTL was already set, update its mode and memory
attributes. */
if (value != 0)
{
PUT_MODE (value, DECL_MODE (exp));
SET_DECL_RTL (exp, 0);
set_mem_attributes (value, exp, 1);
SET_DECL_RTL (exp, value);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
/* ... fall through ... */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case FUNCTION_DECL:
case RESULT_DECL:
if (DECL_RTL (exp) == 0)
abort ();
/* Ensure variable marked as used even if it doesn't go through
a parser. If it hasn't be used yet, write out an external
definition. */
if (! TREE_USED (exp))
{
assemble_external (exp);
TREE_USED (exp) = 1;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Show we haven't gotten RTL for this yet. */
temp = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Handle variables inherited from containing functions. */
context = decl_function_context (exp);
/* We treat inline_function_decl as an alias for the current function
because that is the inline function whose vars, types, etc.
are being merged into the current function.
See expand_inline_function. */
if (context != 0 && context != current_function_decl
&& context != inline_function_decl
/* If var is static, we don't need a static chain to access it. */
&& ! (GET_CODE (DECL_RTL (exp)) == MEM
&& CONSTANT_P (XEXP (DECL_RTL (exp), 0))))
{
rtx addr;
/* Mark as non-local and addressable. */
DECL_NONLOCAL (exp) = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (DECL_NO_STATIC_CHAIN (current_function_decl))
abort ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
mark_addressable (exp);
if (GET_CODE (DECL_RTL (exp)) != MEM)
abort ();
addr = XEXP (DECL_RTL (exp), 0);
if (GET_CODE (addr) == MEM)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
addr
= replace_equiv_address (addr,
fix_lexical_addr (XEXP (addr, 0), exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
addr = fix_lexical_addr (addr, exp);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = replace_equiv_address (DECL_RTL (exp), addr);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* This is the case of an array whose size is to be determined
from its initializer, while the initializer is still being parsed.
See expand_decl. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (GET_CODE (DECL_RTL (exp)) == MEM
&& GET_CODE (XEXP (DECL_RTL (exp), 0)) == REG)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = validize_mem (DECL_RTL (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If DECL_RTL is memory, we are in the normal case and either
the address is not valid or it is not a register and -fforce-addr
is specified, get the address into a register. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (GET_CODE (DECL_RTL (exp)) == MEM
&& modifier != EXPAND_CONST_ADDRESS
&& modifier != EXPAND_SUM
&& modifier != EXPAND_INITIALIZER
&& (! memory_address_p (DECL_MODE (exp),
XEXP (DECL_RTL (exp), 0))
|| (flag_force_addr
&& GET_CODE (XEXP (DECL_RTL (exp), 0)) != REG)))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = replace_equiv_address (DECL_RTL (exp),
copy_rtx (XEXP (DECL_RTL (exp), 0)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we got something, return it. But first, set the alignment
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if the address is a register. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (temp != 0)
{
if (GET_CODE (temp) == MEM && GET_CODE (XEXP (temp, 0)) == REG)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mark_reg_pointer (XEXP (temp, 0), DECL_ALIGN (exp));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return temp;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the mode of DECL_RTL does not match that of the decl, it
must be a promoted value. We return a SUBREG of the wanted mode,
but mark it so that we know that it was already extended. */
if (GET_CODE (DECL_RTL (exp)) == REG
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& GET_MODE (DECL_RTL (exp)) != DECL_MODE (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
/* Get the signedness used for this variable. Ensure we get the
same mode we got when the variable was declared. */
if (GET_MODE (DECL_RTL (exp))
!= promote_mode (type, DECL_MODE (exp), &unsignedp, 0))
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = gen_lowpart_SUBREG (mode, DECL_RTL (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
SUBREG_PROMOTED_VAR_P (temp) = 1;
SUBREG_PROMOTED_UNSIGNED_P (temp) = unsignedp;
return temp;
}
return DECL_RTL (exp);
case INTEGER_CST:
return immed_double_const (TREE_INT_CST_LOW (exp),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TREE_INT_CST_HIGH (exp), mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case CONST_DECL:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return expand_expr (DECL_INITIAL (exp), target, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case REAL_CST:
/* If optimized, generate immediate CONST_DOUBLE
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
which will be turned into memory by reload if necessary.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We used to force a register so that loop.c could see it. But
this does not allow gen_* patterns to perform optimizations with
the constants. It also produces two insns in cases like "x = 1.0;".
On most machines, floating-point constants are not permitted in
many insns, so we'd end up copying it to a register in any case.
Now, we do the copying in expand_binop, if appropriate. */
return immed_real_const (exp);
case COMPLEX_CST:
case STRING_CST:
if (! TREE_CST_RTL (exp))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
output_constant_def (exp, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* TREE_CST_RTL probably contains a constant address.
On RISC machines where a constant address isn't valid,
make some insns to get that address into a register. */
if (GET_CODE (TREE_CST_RTL (exp)) == MEM
&& modifier != EXPAND_CONST_ADDRESS
&& modifier != EXPAND_INITIALIZER
&& modifier != EXPAND_SUM
&& (! memory_address_p (mode, XEXP (TREE_CST_RTL (exp), 0))
|| (flag_force_addr
&& GET_CODE (XEXP (TREE_CST_RTL (exp), 0)) != REG)))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return replace_equiv_address (TREE_CST_RTL (exp),
copy_rtx (XEXP (TREE_CST_RTL (exp), 0)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return TREE_CST_RTL (exp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case EXPR_WITH_FILE_LOCATION:
{
rtx to_return;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
const char *saved_input_filename = input_filename;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int saved_lineno = lineno;
input_filename = EXPR_WFL_FILENAME (exp);
lineno = EXPR_WFL_LINENO (exp);
if (EXPR_WFL_EMIT_LINE_NOTE (exp))
emit_line_note (input_filename, lineno);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Possibly avoid switching back and forth here. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
to_return = expand_expr (EXPR_WFL_NODE (exp), target, tmode, modifier);
input_filename = saved_input_filename;
lineno = saved_lineno;
return to_return;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case SAVE_EXPR:
context = decl_function_context (exp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If this SAVE_EXPR was at global context, assume we are an
initialization function and move it into our context. */
if (context == 0)
SAVE_EXPR_CONTEXT (exp) = current_function_decl;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* We treat inline_function_decl as an alias for the current function
because that is the inline function whose vars, types, etc.
are being merged into the current function.
See expand_inline_function. */
if (context == current_function_decl || context == inline_function_decl)
context = 0;
/* If this is non-local, handle it. */
if (context)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* The following call just exists to abort if the context is
not of a containing function. */
find_function_data (context);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = SAVE_EXPR_RTL (exp);
if (temp && GET_CODE (temp) == REG)
{
put_var_into_stack (exp);
temp = SAVE_EXPR_RTL (exp);
}
if (temp == 0 || GET_CODE (temp) != MEM)
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return
replace_equiv_address (temp,
fix_lexical_addr (XEXP (temp, 0), exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (SAVE_EXPR_RTL (exp) == 0)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (mode == VOIDmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = const0_rtx;
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = assign_temp (build_qualified_type (type,
(TYPE_QUALS (type)
| TYPE_QUAL_CONST)),
3, 0, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
SAVE_EXPR_RTL (exp) = temp;
if (!optimize && GET_CODE (temp) == REG)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
save_expr_regs = gen_rtx_EXPR_LIST (VOIDmode, temp,
save_expr_regs);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the mode of TEMP does not match that of the expression, it
must be a promoted value. We pass store_expr a SUBREG of the
wanted mode but mark it so that we know that it was already
extended. Note that `unsignedp' was modified above in
this case. */
if (GET_CODE (temp) == REG && GET_MODE (temp) != mode)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = gen_lowpart_SUBREG (mode, SAVE_EXPR_RTL (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
SUBREG_PROMOTED_VAR_P (temp) = 1;
SUBREG_PROMOTED_UNSIGNED_P (temp) = unsignedp;
}
if (temp == const0_rtx)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
store_expr (TREE_OPERAND (exp, 0), temp, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TREE_USED (exp) = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* If the mode of SAVE_EXPR_RTL does not match that of the expression, it
must be a promoted value. We return a SUBREG of the wanted mode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
but mark it so that we know that it was already extended. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (SAVE_EXPR_RTL (exp)) == REG
&& GET_MODE (SAVE_EXPR_RTL (exp)) != mode)
{
/* Compute the signedness and make the proper SUBREG. */
promote_mode (type, mode, &unsignedp, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = gen_lowpart_SUBREG (mode, SAVE_EXPR_RTL (exp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
SUBREG_PROMOTED_VAR_P (temp) = 1;
SUBREG_PROMOTED_UNSIGNED_P (temp) = unsignedp;
return temp;
}
return SAVE_EXPR_RTL (exp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case UNSAVE_EXPR:
{
rtx temp;
temp = expand_expr (TREE_OPERAND (exp, 0), target, tmode, modifier);
TREE_OPERAND (exp, 0) = unsave_expr_now (TREE_OPERAND (exp, 0));
return temp;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case PLACEHOLDER_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree old_list = placeholder_list;
tree placeholder_expr = 0;
exp = find_placeholder (exp, &placeholder_expr);
if (exp == 0)
abort ();
placeholder_list = TREE_CHAIN (placeholder_expr);
temp = expand_expr (exp, original_target, tmode, modifier);
placeholder_list = old_list;
return temp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* We can't find the object or there was a missing WITH_RECORD_EXPR. */
abort ();
case WITH_RECORD_EXPR:
/* Put the object on the placeholder list, expand our first operand,
and pop the list. */
placeholder_list = tree_cons (TREE_OPERAND (exp, 1), NULL_TREE,
placeholder_list);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
target = expand_expr (TREE_OPERAND (exp, 0), original_target, tmode,
modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
placeholder_list = TREE_CHAIN (placeholder_list);
return target;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
case GOTO_EXPR:
if (TREE_CODE (TREE_OPERAND (exp, 0)) == LABEL_DECL)
expand_goto (TREE_OPERAND (exp, 0));
else
expand_computed_goto (TREE_OPERAND (exp, 0));
return const0_rtx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case EXIT_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_exit_loop_if_false (NULL,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
invert_truthvalue (TREE_OPERAND (exp, 0)));
return const0_rtx;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
case LABELED_BLOCK_EXPR:
if (LABELED_BLOCK_BODY (exp))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_expr_stmt_value (LABELED_BLOCK_BODY (exp), 0, 1);
/* Should perhaps use expand_label, but this is simpler and safer. */
do_pending_stack_adjust ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_label (label_rtx (LABELED_BLOCK_LABEL (exp)));
return const0_rtx;
case EXIT_BLOCK_EXPR:
if (EXIT_BLOCK_RETURN (exp))
sorry ("returned value in block_exit_expr");
expand_goto (LABELED_BLOCK_LABEL (EXIT_BLOCK_LABELED_BLOCK (exp)));
return const0_rtx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case LOOP_EXPR:
push_temp_slots ();
expand_start_loop (1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_expr_stmt_value (TREE_OPERAND (exp, 0), 0, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
expand_end_loop ();
pop_temp_slots ();
return const0_rtx;
case BIND_EXPR:
{
tree vars = TREE_OPERAND (exp, 0);
int vars_need_expansion = 0;
/* Need to open a binding contour here because
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if there are any cleanups they must be contained here. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_start_bindings (2);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Mark the corresponding BLOCK for output in its proper place. */
if (TREE_OPERAND (exp, 2) != 0
&& ! TREE_USED (TREE_OPERAND (exp, 2)))
insert_block (TREE_OPERAND (exp, 2));
/* If VARS have not yet been expanded, expand them now. */
while (vars)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!DECL_RTL_SET_P (vars))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
vars_need_expansion = 1;
expand_decl (vars);
}
expand_decl_init (vars);
vars = TREE_CHAIN (vars);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = expand_expr (TREE_OPERAND (exp, 1), target, tmode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
expand_end_bindings (TREE_OPERAND (exp, 0), 0, 0);
return temp;
}
case RTL_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (RTL_EXPR_SEQUENCE (exp))
{
if (RTL_EXPR_SEQUENCE (exp) == const0_rtx)
abort ();
emit_insns (RTL_EXPR_SEQUENCE (exp));
RTL_EXPR_SEQUENCE (exp) = const0_rtx;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
preserve_rtl_expr_result (RTL_EXPR_RTL (exp));
free_temps_for_rtl_expr (exp);
return RTL_EXPR_RTL (exp);
case CONSTRUCTOR:
/* If we don't need the result, just ensure we evaluate any
subexpressions. */
if (ignore)
{
tree elt;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (elt = CONSTRUCTOR_ELTS (exp); elt; elt = TREE_CHAIN (elt))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_expr (TREE_VALUE (elt), const0_rtx, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return const0_rtx;
}
/* All elts simple constants => refer to a constant in memory. But
if this is a non-BLKmode mode, let it store a field at a time
since that should make a CONST_INT or CONST_DOUBLE when we
fold. Likewise, if we have a target we can use, it is best to
store directly into the target unless the type is large enough
that memcpy will be used. If we are making an initializer and
all operands are constant, put it in memory as well. */
else if ((TREE_STATIC (exp)
&& ((mode == BLKmode
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& ! (target != 0 && safe_from_p (target, exp, 1)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| TREE_ADDRESSABLE (exp)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (host_integerp (TYPE_SIZE_UNIT (type), 1)
&& (! MOVE_BY_PIECES_P
(tree_low_cst (TYPE_SIZE_UNIT (type), 1),
TYPE_ALIGN (type)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& ! mostly_zeros_p (exp))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| (modifier == EXPAND_INITIALIZER && TREE_CONSTANT (exp)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx constructor = output_constant_def (exp, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (modifier != EXPAND_CONST_ADDRESS
&& modifier != EXPAND_INITIALIZER
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& modifier != EXPAND_SUM)
constructor = validize_mem (constructor);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return constructor;
}
else
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Handle calls that pass values in multiple non-contiguous
locations. The Irix 6 ABI has examples of this. */
if (target == 0 || ! safe_from_p (target, exp, 1)
|| GET_CODE (target) == PARALLEL)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
target
= assign_temp (build_qualified_type (type,
(TYPE_QUALS (type)
| (TREE_READONLY (exp)
* TYPE_QUAL_CONST))),
0, TREE_ADDRESSABLE (exp), 1);
store_constructor (exp, target, 0,
int_size_in_bytes (TREE_TYPE (exp)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return target;
}
case INDIRECT_REF:
{
tree exp1 = TREE_OPERAND (exp, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tree index;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree string = string_constant (exp1, &index);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Try to optimize reads from const strings. */
if (string
&& TREE_CODE (string) == STRING_CST
&& TREE_CODE (index) == INTEGER_CST
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& compare_tree_int (index, TREE_STRING_LENGTH (string)) < 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) == 1
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& modifier != EXPAND_WRITE)
return
GEN_INT (TREE_STRING_POINTER (string)[TREE_INT_CST_LOW (index)]);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = expand_expr (exp1, NULL_RTX, VOIDmode, EXPAND_SUM);
op0 = memory_address (mode, op0);
temp = gen_rtx_MEM (mode, op0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
set_mem_attributes (temp, exp, 0);
/* If we are writing to this object and its type is a record with
readonly fields, we must mark it as readonly so it will
conflict with readonly references to those fields. */
if (modifier == EXPAND_WRITE && readonly_fields_p (type))
RTX_UNCHANGING_P (temp) = 1;
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return temp;
}
case ARRAY_REF:
if (TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 0))) != ARRAY_TYPE)
abort ();
{
tree array = TREE_OPERAND (exp, 0);
tree domain = TYPE_DOMAIN (TREE_TYPE (array));
tree low_bound = domain ? TYPE_MIN_VALUE (domain) : integer_zero_node;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree index = convert (sizetype, TREE_OPERAND (exp, 1));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
HOST_WIDE_INT i;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Optimize the special-case of a zero lower bound.
We convert the low_bound to sizetype to avoid some problems
with constant folding. (E.g. suppose the lower bound is 1,
and its mode is QI. Without the conversion, (ARRAY
+(INDEX-(unsigned char)1)) becomes ((ARRAY+(-(unsigned char)1))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
+INDEX), which becomes (ARRAY+255+INDEX). Oops!) */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (! integer_zerop (low_bound))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
index = size_diffop (index, convert (sizetype, low_bound));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Fold an expression like: "foo"[2].
This is not done in fold so it won't happen inside &.
Don't fold if this is for wide characters since it's too
difficult to do correctly and this is a very rare case. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (modifier != EXPAND_CONST_ADDRESS && modifier != EXPAND_INITIALIZER
&& TREE_CODE (array) == STRING_CST
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& TREE_CODE (index) == INTEGER_CST
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& compare_tree_int (index, TREE_STRING_LENGTH (array)) < 0
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) == 1)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return
GEN_INT (TREE_STRING_POINTER (array)[TREE_INT_CST_LOW (index)]);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If this is a constant index into a constant array,
just get the value from the array. Handle both the cases when
we have an explicit constructor and when our operand is a variable
that was declared const. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (modifier != EXPAND_CONST_ADDRESS && modifier != EXPAND_INITIALIZER
&& TREE_CODE (array) == CONSTRUCTOR && ! TREE_SIDE_EFFECTS (array)
&& TREE_CODE (index) == INTEGER_CST
&& 0 > compare_tree_int (index,
list_length (CONSTRUCTOR_ELTS
(TREE_OPERAND (exp, 0)))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree elem;
for (elem = CONSTRUCTOR_ELTS (TREE_OPERAND (exp, 0)),
i = TREE_INT_CST_LOW (index);
elem != 0 && i != 0; i--, elem = TREE_CHAIN (elem))
;
if (elem)
return expand_expr (fold (TREE_VALUE (elem)), target, tmode,
modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (optimize >= 1
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& modifier != EXPAND_CONST_ADDRESS
&& modifier != EXPAND_INITIALIZER
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& TREE_READONLY (array) && ! TREE_SIDE_EFFECTS (array)
&& TREE_CODE (array) == VAR_DECL && DECL_INITIAL (array)
&& TREE_CODE (DECL_INITIAL (array)) != ERROR_MARK)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (index) == INTEGER_CST)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree init = DECL_INITIAL (array);
if (TREE_CODE (init) == CONSTRUCTOR)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree elem;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for (elem = CONSTRUCTOR_ELTS (init);
(elem
&& !tree_int_cst_equal (TREE_PURPOSE (elem), index));
elem = TREE_CHAIN (elem))
;
if (elem && !TREE_SIDE_EFFECTS (TREE_VALUE (elem)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return expand_expr (fold (TREE_VALUE (elem)), target,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tmode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (TREE_CODE (init) == STRING_CST
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& 0 > compare_tree_int (index,
TREE_STRING_LENGTH (init)))
{
tree type = TREE_TYPE (TREE_TYPE (init));
enum machine_mode mode = TYPE_MODE (type);
if (GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) == 1)
return (GEN_INT
(TREE_STRING_POINTER
(init)[TREE_INT_CST_LOW (index)]));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Fall through. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case COMPONENT_REF:
case BIT_FIELD_REF:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case ARRAY_RANGE_REF:
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the operand is a CONSTRUCTOR, we can just extract the
appropriate field if it is present. Don't do this if we have
already written the data since we want to refer to that copy
and varasm.c assumes that's what we'll do. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (code == COMPONENT_REF
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& TREE_CODE (TREE_OPERAND (exp, 0)) == CONSTRUCTOR
&& TREE_CST_RTL (TREE_OPERAND (exp, 0)) == 0)
{
tree elt;
for (elt = CONSTRUCTOR_ELTS (TREE_OPERAND (exp, 0)); elt;
elt = TREE_CHAIN (elt))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_PURPOSE (elt) == TREE_OPERAND (exp, 1)
/* We can normally use the value of the field in the
CONSTRUCTOR. However, if this is a bitfield in
an integral mode that we can fit in a HOST_WIDE_INT,
we must mask only the number of bits in the bitfield,
since this is done implicitly by the constructor. If
the bitfield does not meet either of those conditions,
we can't do this optimization. */
&& (! DECL_BIT_FIELD (TREE_PURPOSE (elt))
|| ((GET_MODE_CLASS (DECL_MODE (TREE_PURPOSE (elt)))
== MODE_INT)
&& (GET_MODE_BITSIZE (DECL_MODE (TREE_PURPOSE (elt)))
<= HOST_BITS_PER_WIDE_INT))))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = expand_expr (TREE_VALUE (elt), target, tmode, modifier);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (DECL_BIT_FIELD (TREE_PURPOSE (elt)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bitsize
= TREE_INT_CST_LOW (DECL_SIZE (TREE_PURPOSE (elt)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_UNSIGNED (TREE_TYPE (TREE_PURPOSE (elt))))
{
op1 = GEN_INT (((HOST_WIDE_INT) 1 << bitsize) - 1);
op0 = expand_and (op0, op1, target);
}
else
{
enum machine_mode imode
= TYPE_MODE (TREE_TYPE (TREE_PURPOSE (elt)));
tree count
= build_int_2 (GET_MODE_BITSIZE (imode) - bitsize,
0);
op0 = expand_shift (LSHIFT_EXPR, imode, op0, count,
target, 0);
op0 = expand_shift (RSHIFT_EXPR, imode, op0, count,
target, 0);
}
}
return op0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
{
enum machine_mode mode1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bitsize, bitpos;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree offset;
int volatilep = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tree tem = get_inner_reference (exp, &bitsize, &bitpos, &offset,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&mode1, &unsignedp, &volatilep);
rtx orig_op0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we got back the original object, something is wrong. Perhaps
we are evaluating an expression too early. In any event, don't
infinitely recurse. */
if (tem == exp)
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If TEM's type is a union of variable size, pass TARGET to the inner
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
computation, since it will need a temporary and TARGET is known
to have to do. This occurs in unchecked conversion in Ada. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
orig_op0 = op0
= expand_expr (tem,
(TREE_CODE (TREE_TYPE (tem)) == UNION_TYPE
&& (TREE_CODE (TYPE_SIZE (TREE_TYPE (tem)))
!= INTEGER_CST)
? target : NULL_RTX),
VOIDmode,
(modifier == EXPAND_INITIALIZER
|| modifier == EXPAND_CONST_ADDRESS)
? modifier : EXPAND_NORMAL);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If this is a constant, put it into a register if it is a
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
legitimate constant and OFFSET is 0 and memory if it isn't. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (CONSTANT_P (op0))
{
enum machine_mode mode = TYPE_MODE (TREE_TYPE (tem));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (mode != BLKmode && LEGITIMATE_CONSTANT_P (op0)
&& offset == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op0 = force_reg (mode, op0);
else
op0 = validize_mem (force_const_mem (mode, op0));
}
if (offset != 0)
{
rtx offset_rtx = expand_expr (offset, NULL_RTX, VOIDmode, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If this object is in a register, put it into memory.
This case can't occur in C, but can in Ada if we have
unchecked conversion of an expression from a scalar type to
an array or record type. */
if (GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG
|| GET_CODE (op0) == CONCAT || GET_CODE (op0) == ADDRESSOF)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If the operand is a SAVE_EXPR, we can deal with this by
forcing the SAVE_EXPR into memory. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == SAVE_EXPR)
{
put_var_into_stack (TREE_OPERAND (exp, 0));
op0 = SAVE_EXPR_RTL (TREE_OPERAND (exp, 0));
}
else
{
tree nt
= build_qualified_type (TREE_TYPE (tem),
(TYPE_QUALS (TREE_TYPE (tem))
| TYPE_QUAL_CONST));
rtx memloc = assign_temp (nt, 1, 1, 1);
emit_move_insn (memloc, op0);
op0 = memloc;
}
}
if (GET_CODE (op0) != MEM)
abort ();
if (GET_MODE (offset_rtx) != ptr_mode)
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE (offset_rtx) != Pmode)
offset_rtx = convert_memory_address (Pmode, offset_rtx);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* A constant address in OP0 can have VOIDmode, we must not try
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
to call force_reg for that case. Avoid that case. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (op0) == MEM
&& GET_MODE (op0) == BLKmode
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
&& GET_MODE (XEXP (op0, 0)) != VOIDmode
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& bitsize != 0
&& (bitpos % bitsize) == 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (bitsize % GET_MODE_ALIGNMENT (mode1)) == 0
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& MEM_ALIGN (op0) == GET_MODE_ALIGNMENT (mode1))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp = adjust_address (op0, mode1, bitpos / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (XEXP (temp, 0)) == REG)
op0 = temp;
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = (replace_equiv_address
(op0,
force_reg (GET_MODE (XEXP (temp, 0)),
XEXP (temp, 0))));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
bitpos = 0;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = offset_address (op0, offset_rtx,
highest_pow2_factor (offset));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Don't forget about volatility even if this is a bitfield. */
if (GET_CODE (op0) == MEM && volatilep && ! MEM_VOLATILE_P (op0))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (op0 == orig_op0)
op0 = copy_rtx (op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
MEM_VOLATILE_P (op0) = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* In cases where an aligned union has an unaligned object
as a field, we might be extracting a BLKmode value from
an integer-mode (e.g., SImode) object. Handle this case
by doing the extract into an object as wide as the field
(which we know to be the width of a basic mode), then
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
storing into memory, and changing the mode to BLKmode. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mode1 == VOIDmode
|| GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (mode1 != BLKmode && ! direct_load[(int) mode1]
&& GET_MODE_CLASS (mode) != MODE_COMPLEX_INT
&& GET_MODE_CLASS (mode) != MODE_COMPLEX_FLOAT
&& modifier != EXPAND_CONST_ADDRESS
&& modifier != EXPAND_INITIALIZER)
/* If the field isn't aligned enough to fetch as a memref,
fetch it as a bit field. */
|| (mode1 != BLKmode
&& SLOW_UNALIGNED_ACCESS (mode1, MEM_ALIGN (op0))
&& ((TYPE_ALIGN (TREE_TYPE (tem))
< GET_MODE_ALIGNMENT (mode))
|| (bitpos % GET_MODE_ALIGNMENT (mode) != 0)))
/* If the type and the field are a constant size and the
size of the type isn't the same size as the bitfield,
we must use bitfield operations. */
|| (bitsize >= 0
&& (TREE_CODE (TYPE_SIZE (TREE_TYPE (exp)))
== INTEGER_CST)
&& 0 != compare_tree_int (TYPE_SIZE (TREE_TYPE (exp)),
bitsize)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
enum machine_mode ext_mode = mode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (ext_mode == BLKmode
&& ! (target != 0 && GET_CODE (op0) == MEM
&& GET_CODE (target) == MEM
&& bitpos % BITS_PER_UNIT == 0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
ext_mode = mode_for_size (bitsize, MODE_INT, 1);
if (ext_mode == BLKmode)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
/* In this case, BITPOS must start at a byte boundary and
TARGET, if specified, must be a MEM. */
if (GET_CODE (op0) != MEM
|| (target != 0 && GET_CODE (target) != MEM)
|| bitpos % BITS_PER_UNIT != 0)
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = adjust_address (op0, VOIDmode, bitpos / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (target == 0)
target = assign_temp (type, 0, 1, 1);
emit_block_move (target, op0,
GEN_INT ((bitsize + BITS_PER_UNIT - 1)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/ BITS_PER_UNIT));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return target;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = validize_mem (op0);
if (GET_CODE (op0) == MEM && GET_CODE (XEXP (op0, 0)) == REG)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mark_reg_pointer (XEXP (op0, 0), MEM_ALIGN (op0));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = extract_bit_field (op0, bitsize, bitpos,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
unsignedp, target, ext_mode, ext_mode,
int_size_in_bytes (TREE_TYPE (tem)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If the result is a record type and BITSIZE is narrower than
the mode of OP0, an integral mode, and this is a big endian
machine, we must put the field into the high-order bits. */
if (TREE_CODE (type) == RECORD_TYPE && BYTES_BIG_ENDIAN
&& GET_MODE_CLASS (GET_MODE (op0)) == MODE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& bitsize < (HOST_WIDE_INT) GET_MODE_BITSIZE (GET_MODE (op0)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = expand_shift (LSHIFT_EXPR, GET_MODE (op0), op0,
size_int (GET_MODE_BITSIZE (GET_MODE (op0))
- bitsize),
op0, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mode == BLKmode)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx new = assign_temp (build_qualified_type
(type_for_mode (ext_mode, 0),
TYPE_QUAL_CONST), 0, 1, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (new, op0);
op0 = copy_rtx (new);
PUT_MODE (op0, BLKmode);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
set_mem_attributes (op0, exp, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return op0;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If the result is BLKmode, use that to access the object
now as well. */
if (mode == BLKmode)
mode1 = BLKmode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Get a reference to just this component. */
if (modifier == EXPAND_CONST_ADDRESS
|| modifier == EXPAND_SUM || modifier == EXPAND_INITIALIZER)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = adjust_address_nv (op0, mode1, bitpos / BITS_PER_UNIT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = adjust_address (op0, mode1, bitpos / BITS_PER_UNIT);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (op0 == orig_op0)
op0 = copy_rtx (op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
set_mem_attributes (op0, exp, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (XEXP (op0, 0)) == REG)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mark_reg_pointer (XEXP (op0, 0), MEM_ALIGN (op0));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
MEM_VOLATILE_P (op0) |= volatilep;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (mode == mode1 || mode1 == BLKmode || mode1 == tmode
|| modifier == EXPAND_CONST_ADDRESS
|| modifier == EXPAND_INITIALIZER)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return op0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (target == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
target = gen_reg_rtx (tmode != VOIDmode ? tmode : mode);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
convert_move (target, op0, unsignedp);
return target;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case VTABLE_REF:
{
rtx insn, before = get_last_insn (), vtbl_ref;
/* Evaluate the interior expression. */
subtarget = expand_expr (TREE_OPERAND (exp, 0), target,
tmode, modifier);
/* Get or create an instruction off which to hang a note. */
if (REG_P (subtarget))
{
target = subtarget;
insn = get_last_insn ();
if (insn == before)
abort ();
if (! INSN_P (insn))
insn = prev_nonnote_insn (insn);
}
else
{
target = gen_reg_rtx (GET_MODE (subtarget));
insn = emit_move_insn (target, subtarget);
}
/* Collect the data for the note. */
vtbl_ref = XEXP (DECL_RTL (TREE_OPERAND (exp, 1)), 0);
vtbl_ref = plus_constant (vtbl_ref,
tree_low_cst (TREE_OPERAND (exp, 2), 0));
/* Discard the initial CONST that was added. */
vtbl_ref = XEXP (vtbl_ref, 0);
REG_NOTES (insn)
= gen_rtx_EXPR_LIST (REG_VTABLE_REF, vtbl_ref, REG_NOTES (insn));
return target;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Intended for a reference to a buffer of a file-object in Pascal.
But it's not certain that a special tree code will really be
necessary for these. INDIRECT_REF might work for them. */
case BUFFER_REF:
abort ();
case IN_EXPR:
{
/* Pascal set IN expression.
Algorithm:
rlo = set_low - (set_low%bits_per_word);
the_word = set [ (index - rlo)/bits_per_word ];
bit_index = index % bits_per_word;
bitmask = 1 << bit_index;
return !!(the_word & bitmask); */
tree set = TREE_OPERAND (exp, 0);
tree index = TREE_OPERAND (exp, 1);
int iunsignedp = TREE_UNSIGNED (TREE_TYPE (index));
tree set_type = TREE_TYPE (set);
tree set_low_bound = TYPE_MIN_VALUE (TYPE_DOMAIN (set_type));
tree set_high_bound = TYPE_MAX_VALUE (TYPE_DOMAIN (set_type));
rtx index_val = expand_expr (index, 0, VOIDmode, 0);
rtx lo_r = expand_expr (set_low_bound, 0, VOIDmode, 0);
rtx hi_r = expand_expr (set_high_bound, 0, VOIDmode, 0);
rtx setval = expand_expr (set, 0, VOIDmode, 0);
rtx setaddr = XEXP (setval, 0);
enum machine_mode index_mode = TYPE_MODE (TREE_TYPE (index));
rtx rlow;
rtx diff, quo, rem, addr, bit, result;
/* If domain is empty, answer is no. Likewise if index is constant
and out of bounds. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (((TREE_CODE (set_high_bound) == INTEGER_CST
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& TREE_CODE (set_low_bound) == INTEGER_CST
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& tree_int_cst_lt (set_high_bound, set_low_bound))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| (TREE_CODE (index) == INTEGER_CST
&& TREE_CODE (set_low_bound) == INTEGER_CST
&& tree_int_cst_lt (index, set_low_bound))
|| (TREE_CODE (set_high_bound) == INTEGER_CST
&& TREE_CODE (index) == INTEGER_CST
&& tree_int_cst_lt (set_high_bound, index))))
return const0_rtx;
if (target == 0)
target = gen_reg_rtx (tmode != VOIDmode ? tmode : mode);
/* If we get here, we have to generate the code for both cases
(in range and out of range). */
op0 = gen_label_rtx ();
op1 = gen_label_rtx ();
if (! (GET_CODE (index_val) == CONST_INT
&& GET_CODE (lo_r) == CONST_INT))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index_val, lo_r, LT, NULL_RTX,
GET_MODE (index_val), iunsignedp, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (! (GET_CODE (index_val) == CONST_INT
&& GET_CODE (hi_r) == CONST_INT))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index_val, hi_r, GT, NULL_RTX,
GET_MODE (index_val), iunsignedp, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Calculate the element number of bit zero in the first word
of the set. */
if (GET_CODE (lo_r) == CONST_INT)
rlow = GEN_INT (INTVAL (lo_r)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
& ~((HOST_WIDE_INT) 1 << BITS_PER_UNIT));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
rlow = expand_binop (index_mode, and_optab, lo_r,
GEN_INT (~((HOST_WIDE_INT) 1 << BITS_PER_UNIT)),
NULL_RTX, iunsignedp, OPTAB_LIB_WIDEN);
diff = expand_binop (index_mode, sub_optab, index_val, rlow,
NULL_RTX, iunsignedp, OPTAB_LIB_WIDEN);
quo = expand_divmod (0, TRUNC_DIV_EXPR, index_mode, diff,
GEN_INT (BITS_PER_UNIT), NULL_RTX, iunsignedp);
rem = expand_divmod (1, TRUNC_MOD_EXPR, index_mode, index_val,
GEN_INT (BITS_PER_UNIT), NULL_RTX, iunsignedp);
addr = memory_address (byte_mode,
expand_binop (index_mode, add_optab, diff,
setaddr, NULL_RTX, iunsignedp,
OPTAB_LIB_WIDEN));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Extract the bit we want to examine. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
bit = expand_shift (RSHIFT_EXPR, byte_mode,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_MEM (byte_mode, addr),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
make_tree (TREE_TYPE (index), rem),
NULL_RTX, 1);
result = expand_binop (byte_mode, and_optab, bit, const1_rtx,
GET_MODE (target) == byte_mode ? target : 0,
1, OPTAB_LIB_WIDEN);
if (result != target)
convert_move (target, result, 1);
/* Output the code to handle the out-of-range case. */
emit_jump (op0);
emit_label (op1);
emit_move_insn (target, const0_rtx);
emit_label (op0);
return target;
}
case WITH_CLEANUP_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (WITH_CLEANUP_EXPR_RTL (exp) == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
WITH_CLEANUP_EXPR_RTL (exp)
= expand_expr (TREE_OPERAND (exp, 0), target, tmode, modifier);
expand_decl_cleanup (NULL_TREE, TREE_OPERAND (exp, 1));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* That's it for this cleanup. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
TREE_OPERAND (exp, 1) = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return WITH_CLEANUP_EXPR_RTL (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case CLEANUP_POINT_EXPR:
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Start a new binding layer that will keep track of all cleanup
actions to be performed. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_start_bindings (2);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
target_temp_slot_level = temp_slot_level;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = expand_expr (TREE_OPERAND (exp, 0), target, tmode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we're going to use this value, load it up now. */
if (! ignore)
op0 = force_not_mem (op0);
preserve_temp_slots (op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
expand_end_bindings (NULL_TREE, 0, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return op0;
case CALL_EXPR:
/* Check for a built-in function. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == ADDR_EXPR
&& (TREE_CODE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))
== FUNCTION_DECL)
&& DECL_BUILT_IN (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
if (DECL_BUILT_IN_CLASS (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))
== BUILT_IN_FRONTEND)
return (*lang_expand_expr) (exp, original_target, tmode, modifier);
else
return expand_builtin (exp, target, subtarget, tmode, ignore);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return expand_call (exp, target, ignore);
case NON_LVALUE_EXPR:
case NOP_EXPR:
case CONVERT_EXPR:
case REFERENCE_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (TREE_OPERAND (exp, 0) == error_mark_node)
return const0_rtx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_CODE (type) == UNION_TYPE)
{
tree valtype = TREE_TYPE (TREE_OPERAND (exp, 0));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If both input and output are BLKmode, this conversion isn't doing
anything except possibly changing memory attribute. */
if (mode == BLKmode && TYPE_MODE (valtype) == BLKmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx result = expand_expr (TREE_OPERAND (exp, 0), target, tmode,
modifier);
result = copy_rtx (result);
set_mem_attributes (result, exp, 0);
return result;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (target == 0)
target = assign_temp (type, 0, 1, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (target) == MEM)
/* Store data into beginning of memory target. */
store_expr (TREE_OPERAND (exp, 0),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
adjust_address (target, TYPE_MODE (valtype), 0), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (GET_CODE (target) == REG)
/* Store this field into a union of the proper type. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
store_field (target,
MIN ((int_size_in_bytes (TREE_TYPE
(TREE_OPERAND (exp, 0)))
* BITS_PER_UNIT),
(HOST_WIDE_INT) GET_MODE_BITSIZE (mode)),
0, TYPE_MODE (valtype), TREE_OPERAND (exp, 0),
VOIDmode, 0, type, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
abort ();
/* Return the entire union. */
return target;
}
if (mode == TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))))
{
op0 = expand_expr (TREE_OPERAND (exp, 0), target, VOIDmode,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the signedness of the conversion differs and OP0 is
a promoted SUBREG, clear that indication since we now
have to do the proper extension. */
if (TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0))) != unsignedp
&& GET_CODE (op0) == SUBREG)
SUBREG_PROMOTED_VAR_P (op0) = 0;
return op0;
}
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, mode, 0);
if (GET_MODE (op0) == mode)
return op0;
/* If OP0 is a constant, just convert it into the proper mode. */
if (CONSTANT_P (op0))
return
convert_modes (mode, TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))),
op0, TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0))));
if (modifier == EXPAND_INITIALIZER)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return gen_rtx_fmt_e (unsignedp ? ZERO_EXTEND : SIGN_EXTEND, mode, op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (target == 0)
return
convert_to_mode (mode, op0,
TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0))));
else
convert_move (target, op0,
TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0))));
return target;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case VIEW_CONVERT_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, mode, modifier);
/* If the input and output modes are both the same, we are done.
Otherwise, if neither mode is BLKmode and both are within a word, we
can use gen_lowpart. If neither is true, make sure the operand is
in memory and convert the MEM to the new mode. */
if (TYPE_MODE (type) == GET_MODE (op0))
;
else if (TYPE_MODE (type) != BLKmode && GET_MODE (op0) != BLKmode
&& GET_MODE_SIZE (TYPE_MODE (type)) <= UNITS_PER_WORD
&& GET_MODE_SIZE (GET_MODE (op0)) <= UNITS_PER_WORD)
op0 = gen_lowpart (TYPE_MODE (type), op0);
else if (GET_CODE (op0) != MEM)
{
/* If the operand is not a MEM, force it into memory. Since we
are going to be be changing the mode of the MEM, don't call
force_const_mem for constants because we don't allow pool
constants to change mode. */
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
if (TREE_ADDRESSABLE (exp))
abort ();
if (target == 0 || GET_MODE (target) != TYPE_MODE (inner_type))
target
= assign_stack_temp_for_type
(TYPE_MODE (inner_type),
GET_MODE_SIZE (TYPE_MODE (inner_type)), 0, inner_type);
emit_move_insn (target, op0);
op0 = target;
}
/* At this point, OP0 is in the correct mode. If the output type is such
that the operand is known to be aligned, indicate that it is.
Otherwise, we need only be concerned about alignment for non-BLKmode
results. */
if (GET_CODE (op0) == MEM)
{
op0 = copy_rtx (op0);
if (TYPE_ALIGN_OK (type))
set_mem_align (op0, MAX (MEM_ALIGN (op0), TYPE_ALIGN (type)));
else if (TYPE_MODE (type) != BLKmode && STRICT_ALIGNMENT
&& MEM_ALIGN (op0) < GET_MODE_ALIGNMENT (TYPE_MODE (type)))
{
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
HOST_WIDE_INT temp_size
= MAX (int_size_in_bytes (inner_type),
(HOST_WIDE_INT) GET_MODE_SIZE (TYPE_MODE (type)));
rtx new = assign_stack_temp_for_type (TYPE_MODE (type),
temp_size, 0, type);
rtx new_with_op0_mode = adjust_address (new, GET_MODE (op0), 0);
if (TREE_ADDRESSABLE (exp))
abort ();
if (GET_MODE (op0) == BLKmode)
emit_block_move (new_with_op0_mode, op0,
GEN_INT (GET_MODE_SIZE (TYPE_MODE (type))));
else
emit_move_insn (new_with_op0_mode, op0);
op0 = new;
}
op0 = adjust_address (op0, TYPE_MODE (type), 0);
}
return op0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case PLUS_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* We come here from MINUS_EXPR when the second operand is a
constant. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
plus_expr:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
this_optab = ! unsignedp && flag_trapv
&& (GET_MODE_CLASS (mode) == MODE_INT)
? addv_optab : add_optab;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we are adding a constant, an RTL_EXPR that is sp, fp, or ap, and
something else, make sure we add the register to the constant and
then to the other thing. This case can occur during strength
reduction and doing it this way will produce better code if the
frame pointer or argument pointer is eliminated.
fold-const.c will ensure that the constant is always in the inner
PLUS_EXPR, so the only case we need to do anything about is if
sp, ap, or fp is our second argument, in which case we must swap
the innermost first argument and our second argument. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == PLUS_EXPR
&& TREE_CODE (TREE_OPERAND (TREE_OPERAND (exp, 0), 1)) == INTEGER_CST
&& TREE_CODE (TREE_OPERAND (exp, 1)) == RTL_EXPR
&& (RTL_EXPR_RTL (TREE_OPERAND (exp, 1)) == frame_pointer_rtx
|| RTL_EXPR_RTL (TREE_OPERAND (exp, 1)) == stack_pointer_rtx
|| RTL_EXPR_RTL (TREE_OPERAND (exp, 1)) == arg_pointer_rtx))
{
tree t = TREE_OPERAND (exp, 1);
TREE_OPERAND (exp, 1) = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
TREE_OPERAND (TREE_OPERAND (exp, 0), 0) = t;
}
/* If the result is to be ptr_mode and we are adding an integer to
something, we might be forming a constant. So try to use
plus_constant. If it produces a sum and we can't accept it,
use force_operand. This allows P = &ARR[const] to generate
efficient code on machines where a SYMBOL_REF is not a valid
address.
If this is an EXPAND_SUM call, always return the sum. */
if (modifier == EXPAND_SUM || modifier == EXPAND_INITIALIZER
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (mode == ptr_mode && (unsignedp || ! flag_trapv)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
if (TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST
&& GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT
&& TREE_CONSTANT (TREE_OPERAND (exp, 1)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx constant_part;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op1 = expand_expr (TREE_OPERAND (exp, 1), subtarget, VOIDmode,
EXPAND_SUM);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Use immed_double_const to ensure that the constant is
truncated according to the mode of OP1, then sign extended
to a HOST_WIDE_INT. Using the constant directly can result
in non-canonical RTL in a 64x32 cross compile. */
constant_part
= immed_double_const (TREE_INT_CST_LOW (TREE_OPERAND (exp, 0)),
(HOST_WIDE_INT) 0,
TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 1))));
op1 = plus_constant (op1, INTVAL (constant_part));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (modifier != EXPAND_SUM && modifier != EXPAND_INITIALIZER)
op1 = force_operand (op1, target);
return op1;
}
else if (TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST
&& GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_INT
&& TREE_CONSTANT (TREE_OPERAND (exp, 0)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx constant_part;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode,
EXPAND_SUM);
if (! CONSTANT_P (op0))
{
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX,
VOIDmode, modifier);
/* Don't go to both_summands if modifier
says it's not right to return a PLUS. */
if (modifier != EXPAND_SUM && modifier != EXPAND_INITIALIZER)
goto binop2;
goto both_summands;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Use immed_double_const to ensure that the constant is
truncated according to the mode of OP1, then sign extended
to a HOST_WIDE_INT. Using the constant directly can result
in non-canonical RTL in a 64x32 cross compile. */
constant_part
= immed_double_const (TREE_INT_CST_LOW (TREE_OPERAND (exp, 1)),
(HOST_WIDE_INT) 0,
TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))));
op0 = plus_constant (op0, INTVAL (constant_part));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (modifier != EXPAND_SUM && modifier != EXPAND_INITIALIZER)
op0 = force_operand (op0, target);
return op0;
}
}
/* No sense saving up arithmetic to be done
if it's all in the wrong mode to form part of an address.
And force_operand won't know whether to sign-extend or
zero-extend. */
if ((modifier != EXPAND_SUM && modifier != EXPAND_INITIALIZER)
|| mode != ptr_mode)
goto binop;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! safe_from_p (subtarget, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
subtarget = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, modifier);
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
both_summands:
/* Make sure any term that's a sum with a constant comes last. */
if (GET_CODE (op0) == PLUS
&& CONSTANT_P (XEXP (op0, 1)))
{
temp = op0;
op0 = op1;
op1 = temp;
}
/* If adding to a sum including a constant,
associate it to put the constant outside. */
if (GET_CODE (op1) == PLUS
&& CONSTANT_P (XEXP (op1, 1)))
{
rtx constant_term = const0_rtx;
temp = simplify_binary_operation (PLUS, mode, XEXP (op1, 0), op0);
if (temp != 0)
op0 = temp;
/* Ensure that MULT comes first if there is one. */
else if (GET_CODE (op0) == MULT)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = gen_rtx_PLUS (mode, op0, XEXP (op1, 0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = gen_rtx_PLUS (mode, XEXP (op1, 0), op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Let's also eliminate constants from op0 if possible. */
op0 = eliminate_constant_term (op0, &constant_term);
/* CONSTANT_TERM and XEXP (op1, 1) are known to be constant, so
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
their sum should be a constant. Form it into OP1, since the
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
result we want will then be OP0 + OP1. */
temp = simplify_binary_operation (PLUS, mode, constant_term,
XEXP (op1, 1));
if (temp != 0)
op1 = temp;
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op1 = gen_rtx_PLUS (mode, constant_term, XEXP (op1, 1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Put a constant term last and put a multiplication first. */
if (CONSTANT_P (op0) || GET_CODE (op1) == MULT)
temp = op1, op1 = op0, op0 = temp;
temp = simplify_binary_operation (PLUS, mode, op0, op1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return temp ? temp : gen_rtx_PLUS (mode, op0, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case MINUS_EXPR:
/* For initializers, we are allowed to return a MINUS of two
symbolic constants. Here we handle all cases when both operands
are constant. */
/* Handle difference of two symbolic constants,
for the sake of an initializer. */
if ((modifier == EXPAND_SUM || modifier == EXPAND_INITIALIZER)
&& really_constant_p (TREE_OPERAND (exp, 0))
&& really_constant_p (TREE_OPERAND (exp, 1)))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, VOIDmode,
modifier);
rtx op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode,
modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If the last operand is a CONST_INT, use plus_constant of
the negated constant. Else make the MINUS. */
if (GET_CODE (op1) == CONST_INT)
return plus_constant (op0, - INTVAL (op1));
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return gen_rtx_MINUS (mode, op0, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Convert A - const to A + (-const). */
if (TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST)
{
tree negated = fold (build1 (NEGATE_EXPR, type,
TREE_OPERAND (exp, 1)));
if (TREE_UNSIGNED (type) || TREE_OVERFLOW (negated))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we can't negate the constant in TYPE, leave it alone and
expand_binop will negate it for us. We used to try to do it
here in the signed version of TYPE, but that doesn't work
on POINTER_TYPEs. */;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
{
exp = build (PLUS_EXPR, type, TREE_OPERAND (exp, 0), negated);
goto plus_expr;
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
this_optab = ! unsignedp && flag_trapv
&& (GET_MODE_CLASS(mode) == MODE_INT)
? subv_optab : sub_optab;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
goto binop;
case MULT_EXPR:
/* If first operand is constant, swap them.
Thus the following special case checks need only
check the second operand. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree t1 = TREE_OPERAND (exp, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
TREE_OPERAND (exp, 0) = TREE_OPERAND (exp, 1);
TREE_OPERAND (exp, 1) = t1;
}
/* Attempt to return something suitable for generating an
indexed address, for machines that support that. */
if (modifier == EXPAND_SUM && mode == ptr_mode
&& TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST
&& GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode,
EXPAND_SUM);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Apply distributive law if OP0 is x+c. */
if (GET_CODE (op0) == PLUS
&& GET_CODE (XEXP (op0, 1)) == CONST_INT)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return
gen_rtx_PLUS
(mode,
gen_rtx_MULT
(mode, XEXP (op0, 0),
GEN_INT (TREE_INT_CST_LOW (TREE_OPERAND (exp, 1)))),
GEN_INT (TREE_INT_CST_LOW (TREE_OPERAND (exp, 1))
* INTVAL (XEXP (op0, 1))));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (op0) != REG)
op0 = force_operand (op0, NULL_RTX);
if (GET_CODE (op0) != REG)
op0 = copy_to_mode_reg (mode, op0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return
gen_rtx_MULT (mode, op0,
GEN_INT (TREE_INT_CST_LOW (TREE_OPERAND (exp, 1))));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! safe_from_p (subtarget, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
subtarget = 0;
/* Check for multiplying things that have been extended
from a narrower type. If this machine supports multiplying
in that narrower type with a result in the desired type,
do it that way, and avoid the explicit type-conversion. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == NOP_EXPR
&& TREE_CODE (type) == INTEGER_TYPE
&& (TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)))
< TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (exp, 0))))
&& ((TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST
&& int_fits_type_p (TREE_OPERAND (exp, 1),
TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)))
/* Don't use a widening multiply if a shift will do. */
&& ((GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 1))))
> HOST_BITS_PER_WIDE_INT)
|| exact_log2 (TREE_INT_CST_LOW (TREE_OPERAND (exp, 1))) < 0))
||
(TREE_CODE (TREE_OPERAND (exp, 1)) == NOP_EXPR
&& (TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 1), 0)))
==
TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))))
/* If both operands are extended, they must either both
be zero-extended or both be sign-extended. */
&& (TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 1), 0)))
==
TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)))))))
{
enum machine_mode innermode
= TYPE_MODE (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
optab other_optab = (TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)))
? smul_widen_optab : umul_widen_optab);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
this_optab = (TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0)))
? umul_widen_optab : smul_widen_optab);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (mode == GET_MODE_WIDER_MODE (innermode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (this_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
{
op0 = expand_expr (TREE_OPERAND (TREE_OPERAND (exp, 0), 0),
NULL_RTX, VOIDmode, 0);
if (TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST)
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX,
VOIDmode, 0);
else
op1 = expand_expr (TREE_OPERAND (TREE_OPERAND (exp, 1), 0),
NULL_RTX, VOIDmode, 0);
goto binop2;
}
else if (other_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing
&& innermode == word_mode)
{
rtx htem;
op0 = expand_expr (TREE_OPERAND (TREE_OPERAND (exp, 0), 0),
NULL_RTX, VOIDmode, 0);
if (TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op1 = convert_modes (innermode, mode,
expand_expr (TREE_OPERAND (exp, 1),
NULL_RTX, VOIDmode, 0),
unsignedp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
op1 = expand_expr (TREE_OPERAND (TREE_OPERAND (exp, 1), 0),
NULL_RTX, VOIDmode, 0);
temp = expand_binop (mode, other_optab, op0, op1, target,
unsignedp, OPTAB_LIB_WIDEN);
htem = expand_mult_highpart_adjust (innermode,
gen_highpart (innermode, temp),
op0, op1,
gen_highpart (innermode, temp),
unsignedp);
emit_move_insn (gen_highpart (innermode, temp), htem);
return temp;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
return expand_mult (mode, op0, op1, target, unsignedp);
case TRUNC_DIV_EXPR:
case FLOOR_DIV_EXPR:
case CEIL_DIV_EXPR:
case ROUND_DIV_EXPR:
case EXACT_DIV_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! safe_from_p (subtarget, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
subtarget = 0;
/* Possible optimization: compute the dividend with EXPAND_SUM
then if the divisor is constant can optimize the case
where some terms of the dividend have coeffs divisible by it. */
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
return expand_divmod (0, code, mode, op0, op1, target, unsignedp);
case RDIV_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Emit a/b as a*(1/b). Later we may manage CSE the reciprocal saving
expensive divide. If not, combine will rebuild the original
computation. */
if (flag_unsafe_math_optimizations && optimize && !optimize_size
&& !real_onep (TREE_OPERAND (exp, 0)))
return expand_expr (build (MULT_EXPR, type, TREE_OPERAND (exp, 0),
build (RDIV_EXPR, type,
build_real (type, dconst1),
TREE_OPERAND (exp, 1))),
target, tmode, unsignedp);
this_optab = sdiv_optab;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
goto binop;
case TRUNC_MOD_EXPR:
case FLOOR_MOD_EXPR:
case CEIL_MOD_EXPR:
case ROUND_MOD_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! safe_from_p (subtarget, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
subtarget = 0;
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
return expand_divmod (1, code, mode, op0, op1, target, unsignedp);
case FIX_ROUND_EXPR:
case FIX_FLOOR_EXPR:
case FIX_CEIL_EXPR:
abort (); /* Not used for C. */
case FIX_TRUNC_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, VOIDmode, 0);
if (target == 0)
target = gen_reg_rtx (mode);
expand_fix (target, op0, unsignedp);
return target;
case FLOAT_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, VOIDmode, 0);
if (target == 0)
target = gen_reg_rtx (mode);
/* expand_float can't figure out what to do if FROM has VOIDmode.
So give it the correct mode. With -O, cse will optimize this. */
if (GET_MODE (op0) == VOIDmode)
op0 = copy_to_mode_reg (TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))),
op0);
expand_float (target, op0,
TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0))));
return target;
case NEGATE_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = expand_unop (mode,
! unsignedp && flag_trapv
&& (GET_MODE_CLASS(mode) == MODE_INT)
? negv_optab : neg_optab, op0, target, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (temp == 0)
abort ();
return temp;
case ABS_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
/* Handle complex values specially. */
if (GET_MODE_CLASS (mode) == MODE_COMPLEX_INT
|| GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT)
return expand_complex_abs (mode, op0, target, unsignedp);
/* Unsigned abs is simply the operand. Testing here means we don't
risk generating incorrect code below. */
if (TREE_UNSIGNED (type))
return op0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return expand_abs (mode, op0, target, unsignedp,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
safe_from_p (target, TREE_OPERAND (exp, 0), 1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case MAX_EXPR:
case MIN_EXPR:
target = original_target;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (target == 0 || ! safe_from_p (target, TREE_OPERAND (exp, 1), 1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| (GET_CODE (target) == MEM && MEM_VOLATILE_P (target))
|| GET_MODE (target) != mode
|| (GET_CODE (target) == REG
&& REGNO (target) < FIRST_PSEUDO_REGISTER))
target = gen_reg_rtx (mode);
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
op0 = expand_expr (TREE_OPERAND (exp, 0), target, VOIDmode, 0);
/* First try to do it with a special MIN or MAX instruction.
If that does not win, use a conditional jump to select the proper
value. */
this_optab = (TREE_UNSIGNED (type)
? (code == MIN_EXPR ? umin_optab : umax_optab)
: (code == MIN_EXPR ? smin_optab : smax_optab));
temp = expand_binop (mode, this_optab, op0, op1, target, unsignedp,
OPTAB_WIDEN);
if (temp != 0)
return temp;
/* At this point, a MEM target is no longer useful; we will get better
code without it. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_CODE (target) == MEM)
target = gen_reg_rtx (mode);
if (target != op0)
emit_move_insn (target, op0);
op0 = gen_label_rtx ();
/* If this mode is an integer too wide to compare properly,
compare word by word. Rely on cse to optimize constant cases. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE_CLASS (mode) == MODE_INT
&& ! can_compare_p (GE, mode, ccp_jump))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
if (code == MAX_EXPR)
do_jump_by_parts_greater_rtx (mode, TREE_UNSIGNED (type),
target, op1, NULL_RTX, op0);
else
do_jump_by_parts_greater_rtx (mode, TREE_UNSIGNED (type),
op1, target, NULL_RTX, op0);
}
else
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int unsignedp = TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 1)));
do_compare_rtx_and_jump (target, op1, code == MAX_EXPR ? GE : LE,
unsignedp, mode, NULL_RTX, NULL_RTX,
op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (target, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_label (op0);
return target;
case BIT_NOT_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
temp = expand_unop (mode, one_cmpl_optab, op0, target, 1);
if (temp == 0)
abort ();
return temp;
case FFS_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
temp = expand_unop (mode, ffs_optab, op0, target, 1);
if (temp == 0)
abort ();
return temp;
/* ??? Can optimize bitwise operations with one arg constant.
Can optimize (a bitwise1 n) bitwise2 (a bitwise3 b)
and (a bitwise1 b) bitwise2 b (etc)
but that is probably not worth while. */
/* BIT_AND_EXPR is for bitwise anding. TRUTH_AND_EXPR is for anding two
boolean values when we want in all cases to compute both of them. In
general it is fastest to do TRUTH_AND_EXPR by computing both operands
as actual zero-or-1 values and then bitwise anding. In cases where
there cannot be any side effects, better code would be made by
treating TRUTH_AND_EXPR like TRUTH_ANDIF_EXPR; but the question is
how to recognize those cases. */
case TRUTH_AND_EXPR:
case BIT_AND_EXPR:
this_optab = and_optab;
goto binop;
case TRUTH_OR_EXPR:
case BIT_IOR_EXPR:
this_optab = ior_optab;
goto binop;
case TRUTH_XOR_EXPR:
case BIT_XOR_EXPR:
this_optab = xor_optab;
goto binop;
case LSHIFT_EXPR:
case RSHIFT_EXPR:
case LROTATE_EXPR:
case RROTATE_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! safe_from_p (subtarget, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
subtarget = 0;
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
return expand_shift (code, mode, op0, TREE_OPERAND (exp, 1), target,
unsignedp);
/* Could determine the answer when only additive constants differ. Also,
the addition of one can be handled by changing the condition. */
case LT_EXPR:
case LE_EXPR:
case GT_EXPR:
case GE_EXPR:
case EQ_EXPR:
case NE_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case UNORDERED_EXPR:
case ORDERED_EXPR:
case UNLT_EXPR:
case UNLE_EXPR:
case UNGT_EXPR:
case UNGE_EXPR:
case UNEQ_EXPR:
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = do_store_flag (exp, target, tmode != VOIDmode ? tmode : mode, 0);
if (temp != 0)
return temp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* For foo != 0, load foo, and if it is nonzero load 1 instead. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (code == NE_EXPR && integer_zerop (TREE_OPERAND (exp, 1))
&& original_target
&& GET_CODE (original_target) == REG
&& (GET_MODE (original_target)
== TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)))))
{
temp = expand_expr (TREE_OPERAND (exp, 0), original_target,
VOIDmode, 0);
if (temp != original_target)
temp = copy_to_reg (temp);
op1 = gen_label_rtx ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_cmp_and_jump_insns (temp, const0_rtx, EQ, NULL_RTX,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GET_MODE (temp), unsignedp, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (temp, const1_rtx);
emit_label (op1);
return temp;
}
/* If no set-flag instruction, must generate a conditional
store into a temporary variable. Drop through
and handle this like && and ||. */
case TRUTH_ANDIF_EXPR:
case TRUTH_ORIF_EXPR:
if (! ignore
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (target == 0 || ! safe_from_p (target, exp, 1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Make sure we don't have a hard reg (such as function's return
value) live across basic blocks, if not optimizing. */
|| (!optimize && GET_CODE (target) == REG
&& REGNO (target) < FIRST_PSEUDO_REGISTER)))
target = gen_reg_rtx (tmode != VOIDmode ? tmode : mode);
if (target)
emit_clr_insn (target);
op1 = gen_label_rtx ();
jumpifnot (exp, op1);
if (target)
emit_0_to_1_insn (target);
emit_label (op1);
return ignore ? const0_rtx : target;
case TRUTH_NOT_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), target, VOIDmode, 0);
/* The parser is careful to generate TRUTH_NOT_EXPR
only with operands that are always zero or one. */
temp = expand_binop (mode, xor_optab, op0, const1_rtx,
target, 1, OPTAB_LIB_WIDEN);
if (temp == 0)
abort ();
return temp;
case COMPOUND_EXPR:
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode, 0);
emit_queue ();
return expand_expr (TREE_OPERAND (exp, 1),
(ignore ? const0_rtx : target),
VOIDmode, 0);
case COND_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we would have a "singleton" (see below) were it not for a
conversion in each arm, bring that conversion back out. */
if (TREE_CODE (TREE_OPERAND (exp, 1)) == NOP_EXPR
&& TREE_CODE (TREE_OPERAND (exp, 2)) == NOP_EXPR
&& (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 1), 0))
== TREE_TYPE (TREE_OPERAND (TREE_OPERAND (exp, 2), 0))))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree iftrue = TREE_OPERAND (TREE_OPERAND (exp, 1), 0);
tree iffalse = TREE_OPERAND (TREE_OPERAND (exp, 2), 0);
if ((TREE_CODE_CLASS (TREE_CODE (iftrue)) == '2'
&& operand_equal_p (iffalse, TREE_OPERAND (iftrue, 0), 0))
|| (TREE_CODE_CLASS (TREE_CODE (iffalse)) == '2'
&& operand_equal_p (iftrue, TREE_OPERAND (iffalse, 0), 0))
|| (TREE_CODE_CLASS (TREE_CODE (iftrue)) == '1'
&& operand_equal_p (iffalse, TREE_OPERAND (iftrue, 0), 0))
|| (TREE_CODE_CLASS (TREE_CODE (iffalse)) == '1'
&& operand_equal_p (iftrue, TREE_OPERAND (iffalse, 0), 0)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return expand_expr (build1 (NOP_EXPR, type,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
build (COND_EXPR, TREE_TYPE (iftrue),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TREE_OPERAND (exp, 0),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
iftrue, iffalse)),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
target, tmode, modifier);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Note that COND_EXPRs whose type is a structure or union
are required to be constructed to contain assignments of
a temporary variable, so that we can evaluate them here
for side effect only. If type is void, we must do likewise. */
/* If an arm of the branch requires a cleanup,
only that cleanup is performed. */
tree singleton = 0;
tree binary_op = 0, unary_op = 0;
/* If this is (A ? 1 : 0) and A is a condition, just evaluate it and
convert it to our mode, if necessary. */
if (integer_onep (TREE_OPERAND (exp, 1))
&& integer_zerop (TREE_OPERAND (exp, 2))
&& TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 0))) == '<')
{
if (ignore)
{
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return const0_rtx;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = expand_expr (TREE_OPERAND (exp, 0), target, mode, modifier);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (GET_MODE (op0) == mode)
return op0;
if (target == 0)
target = gen_reg_rtx (mode);
convert_move (target, op0, unsignedp);
return target;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Check for X ? A + B : A. If we have this, we can copy A to the
output and conditionally add B. Similarly for unary operations.
Don't do this if X has side-effects because those side effects
might affect A or B and the "?" operation is a sequence point in
ANSI. (operand_equal_p tests for side effects.) */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 1))) == '2'
&& operand_equal_p (TREE_OPERAND (exp, 2),
TREE_OPERAND (TREE_OPERAND (exp, 1), 0), 0))
singleton = TREE_OPERAND (exp, 2), binary_op = TREE_OPERAND (exp, 1);
else if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 2))) == '2'
&& operand_equal_p (TREE_OPERAND (exp, 1),
TREE_OPERAND (TREE_OPERAND (exp, 2), 0), 0))
singleton = TREE_OPERAND (exp, 1), binary_op = TREE_OPERAND (exp, 2);
else if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 1))) == '1'
&& operand_equal_p (TREE_OPERAND (exp, 2),
TREE_OPERAND (TREE_OPERAND (exp, 1), 0), 0))
singleton = TREE_OPERAND (exp, 2), unary_op = TREE_OPERAND (exp, 1);
else if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 2))) == '1'
&& operand_equal_p (TREE_OPERAND (exp, 1),
TREE_OPERAND (TREE_OPERAND (exp, 2), 0), 0))
singleton = TREE_OPERAND (exp, 1), unary_op = TREE_OPERAND (exp, 2);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we are not to produce a result, we have no target. Otherwise,
if a target was specified use it; it will not be used as an
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
intermediate target unless it is safe. If no target, use a
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
temporary. */
if (ignore)
temp = 0;
else if (original_target
&& (safe_from_p (original_target, TREE_OPERAND (exp, 0), 1)
|| (singleton && GET_CODE (original_target) == REG
&& REGNO (original_target) >= FIRST_PSEUDO_REGISTER
&& original_target == var_rtx (singleton)))
&& GET_MODE (original_target) == mode
#ifdef HAVE_conditional_move
&& (! can_conditionally_move_p (mode)
|| GET_CODE (original_target) == REG
|| TREE_ADDRESSABLE (type))
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (GET_CODE (original_target) != MEM
|| TREE_ADDRESSABLE (type)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
temp = original_target;
else if (TREE_ADDRESSABLE (type))
abort ();
else
temp = assign_temp (type, 0, 0, 1);
/* If we had X ? A + C : A, with C a constant power of 2, and we can
do the test of X as a store-flag operation, do this as
A + ((X != 0) << log C). Similarly for other simple binary
operators. Only do for C == 1 if BRANCH_COST is low. */
if (temp && singleton && binary_op
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& (TREE_CODE (binary_op) == PLUS_EXPR
|| TREE_CODE (binary_op) == MINUS_EXPR
|| TREE_CODE (binary_op) == BIT_IOR_EXPR
|| TREE_CODE (binary_op) == BIT_XOR_EXPR)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (BRANCH_COST >= 3 ? integer_pow2p (TREE_OPERAND (binary_op, 1))
: integer_onep (TREE_OPERAND (binary_op, 1)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 0))) == '<')
{
rtx result;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
optab boptab = (TREE_CODE (binary_op) == PLUS_EXPR
? (TYPE_TRAP_SIGNED (TREE_TYPE (binary_op))
? addv_optab : add_optab)
: TREE_CODE (binary_op) == MINUS_EXPR
? (TYPE_TRAP_SIGNED (TREE_TYPE (binary_op))
? subv_optab : sub_optab)
: TREE_CODE (binary_op) == BIT_IOR_EXPR ? ior_optab
: xor_optab);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we had X ? A : A + 1, do this as A + (X == 0).
We have to invert the truth value here and then put it
back later if do_store_flag fails. We cannot simply copy
TREE_OPERAND (exp, 0) to another variable and modify that
because invert_truthvalue can modify the tree pointed to
by its argument. */
if (singleton == TREE_OPERAND (exp, 1))
TREE_OPERAND (exp, 0)
= invert_truthvalue (TREE_OPERAND (exp, 0));
result = do_store_flag (TREE_OPERAND (exp, 0),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
(safe_from_p (temp, singleton, 1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
? temp : NULL_RTX),
mode, BRANCH_COST <= 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (result != 0 && ! integer_onep (TREE_OPERAND (binary_op, 1)))
result = expand_shift (LSHIFT_EXPR, mode, result,
build_int_2 (tree_log2
(TREE_OPERAND
(binary_op, 1)),
0),
(safe_from_p (temp, singleton, 1)
? temp : NULL_RTX), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (result)
{
op1 = expand_expr (singleton, NULL_RTX, VOIDmode, 0);
return expand_binop (mode, boptab, op1, result, temp,
unsignedp, OPTAB_LIB_WIDEN);
}
else if (singleton == TREE_OPERAND (exp, 1))
TREE_OPERAND (exp, 0)
= invert_truthvalue (TREE_OPERAND (exp, 0));
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
do_pending_stack_adjust ();
NO_DEFER_POP;
op0 = gen_label_rtx ();
if (singleton && ! TREE_SIDE_EFFECTS (TREE_OPERAND (exp, 0)))
{
if (temp != 0)
{
/* If the target conflicts with the other operand of the
binary op, we can't use it. Also, we can't use the target
if it is a hard register, because evaluating the condition
might clobber it. */
if ((binary_op
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& ! safe_from_p (temp, TREE_OPERAND (binary_op, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| (GET_CODE (temp) == REG
&& REGNO (temp) < FIRST_PSEUDO_REGISTER))
temp = gen_reg_rtx (mode);
store_expr (singleton, temp, 0);
}
else
expand_expr (singleton,
ignore ? const0_rtx : NULL_RTX, VOIDmode, 0);
if (singleton == TREE_OPERAND (exp, 1))
jumpif (TREE_OPERAND (exp, 0), op0);
else
jumpifnot (TREE_OPERAND (exp, 0), op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (binary_op && temp == 0)
/* Just touch the other operand. */
expand_expr (TREE_OPERAND (binary_op, 1),
ignore ? const0_rtx : NULL_RTX, VOIDmode, 0);
else if (binary_op)
store_expr (build (TREE_CODE (binary_op), type,
make_tree (type, temp),
TREE_OPERAND (binary_op, 1)),
temp, 0);
else
store_expr (build1 (TREE_CODE (unary_op), type,
make_tree (type, temp)),
temp, 0);
op1 = op0;
}
/* Check for A op 0 ? A : FOO and A op 0 ? FOO : A where OP is any
comparison operator. If we have one of these cases, set the
output to A, branch on A (cse will merge these two references),
then set the output to FOO. */
else if (temp
&& TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 0))) == '<'
&& integer_zerop (TREE_OPERAND (TREE_OPERAND (exp, 0), 1))
&& operand_equal_p (TREE_OPERAND (TREE_OPERAND (exp, 0), 0),
TREE_OPERAND (exp, 1), 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (! TREE_SIDE_EFFECTS (TREE_OPERAND (exp, 0))
|| TREE_CODE (TREE_OPERAND (exp, 1)) == SAVE_EXPR)
&& safe_from_p (temp, TREE_OPERAND (exp, 2), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (temp) == REG
&& REGNO (temp) < FIRST_PSEUDO_REGISTER)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = gen_reg_rtx (mode);
store_expr (TREE_OPERAND (exp, 1), temp, 0);
jumpif (TREE_OPERAND (exp, 0), op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
store_expr (TREE_OPERAND (exp, 2), temp, 0);
op1 = op0;
}
else if (temp
&& TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 0))) == '<'
&& integer_zerop (TREE_OPERAND (TREE_OPERAND (exp, 0), 1))
&& operand_equal_p (TREE_OPERAND (TREE_OPERAND (exp, 0), 0),
TREE_OPERAND (exp, 2), 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (! TREE_SIDE_EFFECTS (TREE_OPERAND (exp, 0))
|| TREE_CODE (TREE_OPERAND (exp, 2)) == SAVE_EXPR)
&& safe_from_p (temp, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (temp) == REG
&& REGNO (temp) < FIRST_PSEUDO_REGISTER)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = gen_reg_rtx (mode);
store_expr (TREE_OPERAND (exp, 2), temp, 0);
jumpifnot (TREE_OPERAND (exp, 0), op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
store_expr (TREE_OPERAND (exp, 1), temp, 0);
op1 = op0;
}
else
{
op1 = gen_label_rtx ();
jumpifnot (TREE_OPERAND (exp, 0), op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* One branch of the cond can be void, if it never returns. For
example A ? throw : E */
if (temp != 0
&& TREE_TYPE (TREE_OPERAND (exp, 1)) != void_type_node)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
store_expr (TREE_OPERAND (exp, 1), temp, 0);
else
expand_expr (TREE_OPERAND (exp, 1),
ignore ? const0_rtx : NULL_RTX, VOIDmode, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
end_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_queue ();
emit_jump_insn (gen_jump (op1));
emit_barrier ();
emit_label (op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (temp != 0
&& TREE_TYPE (TREE_OPERAND (exp, 2)) != void_type_node)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
store_expr (TREE_OPERAND (exp, 2), temp, 0);
else
expand_expr (TREE_OPERAND (exp, 2),
ignore ? const0_rtx : NULL_RTX, VOIDmode, 0);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
end_cleanup_deferral ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_queue ();
emit_label (op1);
OK_DEFER_POP;
return temp;
}
case TARGET_EXPR:
{
/* Something needs to be initialized, but we didn't know
where that thing was when building the tree. For example,
it could be the return value of a function, or a parameter
to a function which lays down in the stack, or a temporary
variable which must be passed by reference.
We guarantee that the expression will either be constructed
or copied into our original target. */
tree slot = TREE_OPERAND (exp, 0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tree cleanups = NULL_TREE;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree exp1;
if (TREE_CODE (slot) != VAR_DECL)
abort ();
if (! ignore)
target = original_target;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Set this here so that if we get a target that refers to a
register variable that's already been used, put_reg_into_stack
knows that it should fix up those uses. */
TREE_USED (slot) = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (target == 0)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (DECL_RTL_SET_P (slot))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
target = DECL_RTL (slot);
/* If we have already expanded the slot, so don't do
it again. (mrs) */
if (TREE_OPERAND (exp, 1) == NULL_TREE)
return target;
}
else
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
target = assign_temp (type, 2, 0, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* All temp slots at this level must not conflict. */
preserve_temp_slots (target);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
SET_DECL_RTL (slot, target);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_ADDRESSABLE (slot))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
put_var_into_stack (slot);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Since SLOT is not known to the called function
to belong to its stack frame, we must build an explicit
cleanup. This case occurs when we must build up a reference
to pass the reference as an argument. In this case,
it is very likely that such a reference need not be
built here. */
if (TREE_OPERAND (exp, 2) == 0)
TREE_OPERAND (exp, 2) = maybe_build_cleanup (slot);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
cleanups = TREE_OPERAND (exp, 2);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
else
{
/* This case does occur, when expanding a parameter which
needs to be constructed on the stack. The target
is the actual stack address that we want to initialize.
The function we call will perform the cleanup in this case. */
/* If we have already assigned it space, use that space,
not target that we were passed in, as our target
parameter is only a hint. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (DECL_RTL_SET_P (slot))
{
target = DECL_RTL (slot);
/* If we have already expanded the slot, so don't do
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
it again. (mrs) */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (TREE_OPERAND (exp, 1) == NULL_TREE)
return target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
SET_DECL_RTL (slot, target);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we must have an addressable slot, then make sure that
the RTL that we just stored in slot is OK. */
if (TREE_ADDRESSABLE (slot))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
put_var_into_stack (slot);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
exp1 = TREE_OPERAND (exp, 3) = TREE_OPERAND (exp, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Mark it as expanded. */
TREE_OPERAND (exp, 1) = NULL_TREE;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
store_expr (exp1, target, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
expand_decl_cleanup (NULL_TREE, cleanups);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
case INIT_EXPR:
{
tree lhs = TREE_OPERAND (exp, 0);
tree rhs = TREE_OPERAND (exp, 1);
temp = expand_assignment (lhs, rhs, ! ignore, original_target != 0);
return temp;
}
case MODIFY_EXPR:
{
/* If lhs is complex, expand calls in rhs before computing it.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
That's so we don't compute a pointer and save it over a
call. If lhs is simple, compute it first so we can give it
as a target if the rhs is just a call. This avoids an
extra temp and copy and that prevents a partial-subsumption
which makes bad code. Actually we could treat
component_ref's of vars like vars. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree lhs = TREE_OPERAND (exp, 0);
tree rhs = TREE_OPERAND (exp, 1);
temp = 0;
/* Check for |= or &= of a bitfield of size one into another bitfield
of size 1. In this case, (unless we need the result of the
assignment) we can do this more efficiently with a
test followed by an assignment, if necessary.
??? At this point, we can't get a BIT_FIELD_REF here. But if
things change so we do, this code should be enhanced to
support it. */
if (ignore
&& TREE_CODE (lhs) == COMPONENT_REF
&& (TREE_CODE (rhs) == BIT_IOR_EXPR
|| TREE_CODE (rhs) == BIT_AND_EXPR)
&& TREE_OPERAND (rhs, 0) == lhs
&& TREE_CODE (TREE_OPERAND (rhs, 1)) == COMPONENT_REF
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& integer_onep (DECL_SIZE (TREE_OPERAND (lhs, 1)))
&& integer_onep (DECL_SIZE (TREE_OPERAND (TREE_OPERAND (rhs, 1), 1))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
rtx label = gen_label_rtx ();
do_jump (TREE_OPERAND (rhs, 1),
TREE_CODE (rhs) == BIT_IOR_EXPR ? label : 0,
TREE_CODE (rhs) == BIT_AND_EXPR ? label : 0);
expand_assignment (lhs, convert (TREE_TYPE (rhs),
(TREE_CODE (rhs) == BIT_IOR_EXPR
? integer_one_node
: integer_zero_node)),
0, 0);
do_pending_stack_adjust ();
emit_label (label);
return const0_rtx;
}
temp = expand_assignment (lhs, rhs, ! ignore, original_target != 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return temp;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
case RETURN_EXPR:
if (!TREE_OPERAND (exp, 0))
expand_null_return ();
else
expand_return (TREE_OPERAND (exp, 0));
return const0_rtx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case PREINCREMENT_EXPR:
case PREDECREMENT_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return expand_increment (exp, 0, ignore);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case POSTINCREMENT_EXPR:
case POSTDECREMENT_EXPR:
/* Faster to treat as pre-increment if result is not used. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return expand_increment (exp, ! ignore, ignore);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case ADDR_EXPR:
/* Are we taking the address of a nested function? */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == FUNCTION_DECL
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& decl_function_context (TREE_OPERAND (exp, 0)) != 0
&& ! DECL_NO_STATIC_CHAIN (TREE_OPERAND (exp, 0))
&& ! TREE_STATIC (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
op0 = trampoline_address (TREE_OPERAND (exp, 0));
op0 = force_operand (op0, target);
}
/* If we are taking the address of something erroneous, just
return a zero. */
else if (TREE_CODE (TREE_OPERAND (exp, 0)) == ERROR_MARK)
return const0_rtx;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we are taking the address of a constant and are at the
top level, we have to use output_constant_def since we can't
call force_const_mem at top level. */
else if (cfun == 0
&& (TREE_CODE (TREE_OPERAND (exp, 0)) == CONSTRUCTOR
|| (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (exp, 0)))
== 'c')))
op0 = XEXP (output_constant_def (TREE_OPERAND (exp, 0), 0), 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
{
/* We make sure to pass const0_rtx down if we came in with
ignore set, to avoid doing the cleanups twice for something. */
op0 = expand_expr (TREE_OPERAND (exp, 0),
ignore ? const0_rtx : NULL_RTX, VOIDmode,
(modifier == EXPAND_INITIALIZER
? modifier : EXPAND_CONST_ADDRESS));
/* If we are going to ignore the result, OP0 will have been set
to const0_rtx, so just return it. Don't get confused and
think we are taking the address of the constant. */
if (ignore)
return op0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Pass 1 for MODIFY, so that protect_from_queue doesn't get
clever and returns a REG when given a MEM. */
op0 = protect_from_queue (op0, 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* We would like the object in memory. If it is a constant, we can
have it be statically allocated into memory. For a non-constant,
we need to allocate some memory and store the value into it. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (CONSTANT_P (op0))
op0 = force_const_mem (TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))),
op0);
else if (GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| GET_CODE (op0) == CONCAT || GET_CODE (op0) == ADDRESSOF
|| GET_CODE (op0) == PARALLEL)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If the operand is a SAVE_EXPR, we can deal with this by
forcing the SAVE_EXPR into memory. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == SAVE_EXPR)
{
put_var_into_stack (TREE_OPERAND (exp, 0));
op0 = SAVE_EXPR_RTL (TREE_OPERAND (exp, 0));
}
else
{
/* If this object is in a register, it can't be BLKmode. */
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
rtx memloc = assign_temp (inner_type, 1, 1, 1);
if (GET_CODE (op0) == PARALLEL)
/* Handle calls that pass values in multiple
non-contiguous locations. The Irix 6 ABI has examples
of this. */
emit_group_store (memloc, op0,
int_size_in_bytes (inner_type));
else
emit_move_insn (memloc, op0);
op0 = memloc;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (GET_CODE (op0) != MEM)
abort ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mark_temp_addr_taken (op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (modifier == EXPAND_SUM || modifier == EXPAND_INITIALIZER)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = XEXP (op0, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_MODE (op0) == Pmode && GET_MODE (op0) != mode
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& mode == ptr_mode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = convert_memory_address (ptr_mode, op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return op0;
}
/* If OP0 is not aligned as least as much as the type requires, we
need to make a temporary, copy OP0 to it, and take the address of
the temporary. We want to use the alignment of the type, not of
the operand. Note that this is incorrect for FUNCTION_TYPE, but
the test for BLKmode means that can't happen. The test for
BLKmode is because we never make mis-aligned MEMs with
non-BLKmode.
We don't need to do this at all if the machine doesn't have
strict alignment. */
if (STRICT_ALIGNMENT && GET_MODE (op0) == BLKmode
&& (TYPE_ALIGN (TREE_TYPE (TREE_OPERAND (exp, 0)))
> MEM_ALIGN (op0))
&& MEM_ALIGN (op0) < BIGGEST_ALIGNMENT)
{
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
rtx new
= assign_stack_temp_for_type
(TYPE_MODE (inner_type),
MEM_SIZE (op0) ? INTVAL (MEM_SIZE (op0))
: int_size_in_bytes (inner_type),
1, build_qualified_type (inner_type,
(TYPE_QUALS (inner_type)
| TYPE_QUAL_CONST)));
if (TYPE_ALIGN_OK (inner_type))
abort ();
emit_block_move (new, op0, expr_size (TREE_OPERAND (exp, 0)));
op0 = new;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
op0 = force_operand (XEXP (op0, 0), target);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (flag_force_addr
&& GET_CODE (op0) != REG
&& modifier != EXPAND_CONST_ADDRESS
&& modifier != EXPAND_INITIALIZER
&& modifier != EXPAND_SUM)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op0 = force_reg (Pmode, op0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (op0) == REG
&& ! REG_USERVAR_P (op0))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mark_reg_pointer (op0, TYPE_ALIGN (TREE_TYPE (type)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
if (GET_MODE (op0) == Pmode && GET_MODE (op0) != mode
&& mode == ptr_mode)
op0 = convert_memory_address (ptr_mode, op0);
#endif
return op0;
case ENTRY_VALUE_EXPR:
abort ();
/* COMPLEX type for Extended Pascal & Fortran */
case COMPLEX_EXPR:
{
enum machine_mode mode = TYPE_MODE (TREE_TYPE (TREE_TYPE (exp)));
rtx insns;
/* Get the rtx code of the operands. */
op0 = expand_expr (TREE_OPERAND (exp, 0), 0, VOIDmode, 0);
op1 = expand_expr (TREE_OPERAND (exp, 1), 0, VOIDmode, 0);
if (! target)
target = gen_reg_rtx (TYPE_MODE (TREE_TYPE (exp)));
start_sequence ();
/* Move the real (op0) and imaginary (op1) parts to their location. */
emit_move_insn (gen_realpart (mode, target), op0);
emit_move_insn (gen_imagpart (mode, target), op1);
insns = get_insns ();
end_sequence ();
/* Complex construction should appear as a single unit. */
/* If TARGET is a CONCAT, we got insns like RD = RS, ID = IS,
each with a separate pseudo as destination.
It's not correct for flow to treat them as a unit. */
if (GET_CODE (target) != CONCAT)
emit_no_conflict_block (insns, target, op0, op1, NULL_RTX);
else
emit_insns (insns);
return target;
}
case REALPART_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), 0, VOIDmode, 0);
return gen_realpart (mode, op0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case IMAGPART_EXPR:
op0 = expand_expr (TREE_OPERAND (exp, 0), 0, VOIDmode, 0);
return gen_imagpart (mode, op0);
case CONJ_EXPR:
{
enum machine_mode partmode = TYPE_MODE (TREE_TYPE (TREE_TYPE (exp)));
rtx imag_t;
rtx insns;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = expand_expr (TREE_OPERAND (exp, 0), 0, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (! target)
target = gen_reg_rtx (mode);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
start_sequence ();
/* Store the realpart and the negated imagpart to target. */
emit_move_insn (gen_realpart (partmode, target),
gen_realpart (partmode, op0));
imag_t = gen_imagpart (partmode, target);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = expand_unop (partmode,
! unsignedp && flag_trapv
&& (GET_MODE_CLASS(partmode) == MODE_INT)
? negv_optab : neg_optab,
gen_imagpart (partmode, op0), imag_t, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (temp != imag_t)
emit_move_insn (imag_t, temp);
insns = get_insns ();
end_sequence ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Conjugate should appear as a single unit
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
If TARGET is a CONCAT, we got insns like RD = RS, ID = - IS,
each with a separate pseudo as destination.
It's not correct for flow to treat them as a unit. */
if (GET_CODE (target) != CONCAT)
emit_no_conflict_block (insns, target, op0, NULL_RTX, NULL_RTX);
else
emit_insns (insns);
return target;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case TRY_CATCH_EXPR:
{
tree handler = TREE_OPERAND (exp, 1);
expand_eh_region_start ();
op0 = expand_expr (TREE_OPERAND (exp, 0), 0, VOIDmode, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_eh_region_end_cleanup (handler);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return op0;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
case TRY_FINALLY_EXPR:
{
tree try_block = TREE_OPERAND (exp, 0);
tree finally_block = TREE_OPERAND (exp, 1);
rtx finally_label = gen_label_rtx ();
rtx done_label = gen_label_rtx ();
rtx return_link = gen_reg_rtx (Pmode);
tree cleanup = build (GOTO_SUBROUTINE_EXPR, void_type_node,
(tree) finally_label, (tree) return_link);
TREE_SIDE_EFFECTS (cleanup) = 1;
/* Start a new binding layer that will keep track of all cleanup
actions to be performed. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_start_bindings (2);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
target_temp_slot_level = temp_slot_level;
expand_decl_cleanup (NULL_TREE, cleanup);
op0 = expand_expr (try_block, target, tmode, modifier);
preserve_temp_slots (op0);
expand_end_bindings (NULL_TREE, 0, 0);
emit_jump (done_label);
emit_label (finally_label);
expand_expr (finally_block, const0_rtx, VOIDmode, 0);
emit_indirect_jump (return_link);
emit_label (done_label);
return op0;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case GOTO_SUBROUTINE_EXPR:
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
rtx subr = (rtx) TREE_OPERAND (exp, 0);
rtx return_link = *(rtx *) &TREE_OPERAND (exp, 1);
rtx return_address = gen_label_rtx ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_move_insn (return_link,
gen_rtx_LABEL_REF (Pmode, return_address));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_jump (subr);
emit_label (return_address);
return const0_rtx;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case VA_ARG_EXPR:
return expand_builtin_va_arg (TREE_OPERAND (exp, 0), type);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case EXC_PTR_EXPR:
return get_exception_pointer (cfun);
case FDESC_EXPR:
/* Function descriptors are not valid except for as
initialization constants, and should not be expanded. */
abort ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
default:
return (*lang_expand_expr) (exp, original_target, tmode, modifier);
}
/* Here to do an ordinary binary operator, generating an instruction
from the optab already placed in `this_optab'. */
binop:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! safe_from_p (subtarget, TREE_OPERAND (exp, 1), 1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
subtarget = 0;
op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
binop2:
temp = expand_binop (mode, this_optab, op0, op1, target,
unsignedp, OPTAB_LIB_WIDEN);
if (temp == 0)
abort ();
return temp;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Return the tree node if a ARG corresponds to a string constant or zero
if it doesn't. If we return non-zero, set *PTR_OFFSET to the offset
in bytes within the string that ARG is accessing. The type of the
offset will be `sizetype'. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
string_constant (arg, ptr_offset)
tree arg;
tree *ptr_offset;
{
STRIP_NOPS (arg);
if (TREE_CODE (arg) == ADDR_EXPR
&& TREE_CODE (TREE_OPERAND (arg, 0)) == STRING_CST)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*ptr_offset = size_zero_node;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return TREE_OPERAND (arg, 0);
}
else if (TREE_CODE (arg) == PLUS_EXPR)
{
tree arg0 = TREE_OPERAND (arg, 0);
tree arg1 = TREE_OPERAND (arg, 1);
STRIP_NOPS (arg0);
STRIP_NOPS (arg1);
if (TREE_CODE (arg0) == ADDR_EXPR
&& TREE_CODE (TREE_OPERAND (arg0, 0)) == STRING_CST)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*ptr_offset = convert (sizetype, arg1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return TREE_OPERAND (arg0, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (TREE_CODE (arg1) == ADDR_EXPR
&& TREE_CODE (TREE_OPERAND (arg1, 0)) == STRING_CST)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*ptr_offset = convert (sizetype, arg0);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return TREE_OPERAND (arg1, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Expand code for a post- or pre- increment or decrement
and return the RTX for the result.
POST is 1 for postinc/decrements and 0 for preinc/decrements. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static rtx
expand_increment (exp, post, ignore)
tree exp;
int post, ignore;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx op0, op1;
rtx temp, value;
tree incremented = TREE_OPERAND (exp, 0);
optab this_optab = add_optab;
int icode;
enum machine_mode mode = TYPE_MODE (TREE_TYPE (exp));
int op0_is_copy = 0;
int single_insn = 0;
/* 1 means we can't store into OP0 directly,
because it is a subreg narrower than a word,
and we don't dare clobber the rest of the word. */
int bad_subreg = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Stabilize any component ref that might need to be
evaluated more than once below. */
if (!post
|| TREE_CODE (incremented) == BIT_FIELD_REF
|| (TREE_CODE (incremented) == COMPONENT_REF
&& (TREE_CODE (TREE_OPERAND (incremented, 0)) != INDIRECT_REF
|| DECL_BIT_FIELD (TREE_OPERAND (incremented, 1)))))
incremented = stabilize_reference (incremented);
/* Nested *INCREMENT_EXPRs can happen in C++. We must force innermost
ones into save exprs so that they don't accidentally get evaluated
more than once by the code below. */
if (TREE_CODE (incremented) == PREINCREMENT_EXPR
|| TREE_CODE (incremented) == PREDECREMENT_EXPR)
incremented = save_expr (incremented);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Compute the operands as RTX.
Note whether OP0 is the actual lvalue or a copy of it:
I believe it is a copy iff it is a register or subreg
and insns were generated in computing it. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
temp = get_last_insn ();
op0 = expand_expr (incremented, NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If OP0 is a SUBREG made for a promoted variable, we cannot increment
in place but instead must do sign- or zero-extension during assignment,
so we copy it into a new register and let the code below use it as
a copy.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Note that we can safely modify this SUBREG since it is know not to be
shared (it was made by the expand_expr call above). */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (op0) == SUBREG && SUBREG_PROMOTED_VAR_P (op0))
{
if (post)
SUBREG_REG (op0) = copy_to_reg (SUBREG_REG (op0));
else
bad_subreg = 1;
}
else if (GET_CODE (op0) == SUBREG
&& GET_MODE_BITSIZE (GET_MODE (op0)) < BITS_PER_WORD)
{
/* We cannot increment this SUBREG in place. If we are
post-incrementing, get a copy of the old value. Otherwise,
just mark that we cannot increment in place. */
if (post)
op0 = copy_to_reg (op0);
else
bad_subreg = 1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0_is_copy = ((GET_CODE (op0) == SUBREG || GET_CODE (op0) == REG)
&& temp != get_last_insn ());
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Decide whether incrementing or decrementing. */
if (TREE_CODE (exp) == POSTDECREMENT_EXPR
|| TREE_CODE (exp) == PREDECREMENT_EXPR)
this_optab = sub_optab;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Convert decrement by a constant into a negative increment. */
if (this_optab == sub_optab
&& GET_CODE (op1) == CONST_INT)
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op1 = GEN_INT (-INTVAL (op1));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
this_optab = add_optab;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (TYPE_TRAP_SIGNED (TREE_TYPE (exp)))
this_optab = this_optab == add_optab ? addv_optab : subv_optab;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* For a preincrement, see if we can do this with a single instruction. */
if (!post)
{
icode = (int) this_optab->handlers[(int) mode].insn_code;
if (icode != (int) CODE_FOR_nothing
/* Make sure that OP0 is valid for operands 0 and 1
of the insn we want to queue. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (*insn_data[icode].operand[0].predicate) (op0, mode)
&& (*insn_data[icode].operand[1].predicate) (op0, mode)
&& (*insn_data[icode].operand[2].predicate) (op1, mode))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
single_insn = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If OP0 is not the actual lvalue, but rather a copy in a register,
then we cannot just increment OP0. We must therefore contrive to
increment the original value. Then, for postincrement, we can return
OP0 since it is a copy of the old value. For preincrement, expand here
unless we can do it with a single insn.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Likewise if storing directly into OP0 would clobber high bits
we need to preserve (bad_subreg). */
if (op0_is_copy || (!post && !single_insn) || bad_subreg)
{
/* This is the easiest way to increment the value wherever it is.
Problems with multiple evaluation of INCREMENTED are prevented
because either (1) it is a component_ref or preincrement,
in which case it was stabilized above, or (2) it is an array_ref
with constant index in an array in a register, which is
safe to reevaluate. */
tree newexp = build (((TREE_CODE (exp) == POSTDECREMENT_EXPR
|| TREE_CODE (exp) == PREDECREMENT_EXPR)
? MINUS_EXPR : PLUS_EXPR),
TREE_TYPE (exp),
incremented,
TREE_OPERAND (exp, 1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
while (TREE_CODE (incremented) == NOP_EXPR
|| TREE_CODE (incremented) == CONVERT_EXPR)
{
newexp = convert (TREE_TYPE (incremented), newexp);
incremented = TREE_OPERAND (incremented, 0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
temp = expand_assignment (incremented, newexp, ! post && ! ignore , 0);
return post ? op0 : temp;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (post)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* We have a true reference to the value in OP0.
If there is an insn to add or subtract in this mode, queue it.
Queueing the increment insn avoids the register shuffling
that often results if we must increment now and first save
the old value for subsequent use. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#if 0 /* Turned off to avoid making extra insn for indexed memref. */
op0 = stabilize (op0);
#endif
icode = (int) this_optab->handlers[(int) mode].insn_code;
if (icode != (int) CODE_FOR_nothing
/* Make sure that OP0 is valid for operands 0 and 1
of the insn we want to queue. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (*insn_data[icode].operand[0].predicate) (op0, mode)
&& (*insn_data[icode].operand[1].predicate) (op0, mode))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! (*insn_data[icode].operand[2].predicate) (op1, mode))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op1 = force_reg (mode, op1);
return enqueue_insn (op0, GEN_FCN (icode) (op0, op0, op1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (icode != (int) CODE_FOR_nothing && GET_CODE (op0) == MEM)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx addr = (general_operand (XEXP (op0, 0), mode)
? force_reg (Pmode, XEXP (op0, 0))
: copy_to_reg (XEXP (op0, 0)));
rtx temp, result;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = replace_equiv_address (op0, addr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
temp = force_reg (GET_MODE (op0), op0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! (*insn_data[icode].operand[2].predicate) (op1, mode))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op1 = force_reg (mode, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* The increment queue is LIFO, thus we have to `queue'
the instructions in reverse order. */
enqueue_insn (op0, gen_move_insn (op0, temp));
result = enqueue_insn (temp, GEN_FCN (icode) (temp, temp, op1));
return result;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Preincrement, or we can't increment with one simple insn. */
if (post)
/* Save a copy of the value before inc or dec, to return it later. */
temp = value = copy_to_reg (op0);
else
/* Arrange to return the incremented value. */
/* Copy the rtx because expand_binop will protect from the queue,
and the results of that would be invalid for us to return
if our caller does emit_queue before using our result. */
temp = copy_rtx (value = op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Increment however we can. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op1 = expand_binop (mode, this_optab, value, op1, op0,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
TREE_UNSIGNED (TREE_TYPE (exp)), OPTAB_LIB_WIDEN);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Make sure the value is stored into OP0. */
if (op1 != op0)
emit_move_insn (op0, op1);
return temp;
}
/* At the start of a function, record that we have no previously-pushed
arguments waiting to be popped. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
init_pending_stack_adjust ()
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pending_stack_adjust = 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* When exiting from function, if safe, clear out any pending stack adjust
so the adjustment won't get done.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Note, if the current function calls alloca, then it must have a
frame pointer regardless of the value of flag_omit_frame_pointer. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
clear_pending_stack_adjust ()
{
#ifdef EXIT_IGNORE_STACK
if (optimize > 0
&& (! flag_omit_frame_pointer || current_function_calls_alloca)
&& EXIT_IGNORE_STACK
&& ! (DECL_INLINE (current_function_decl) && ! flag_no_inline)
&& ! flag_inline_functions)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
stack_pointer_delta -= pending_stack_adjust,
pending_stack_adjust = 0;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Pop any previously-pushed arguments that have not been popped yet. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
do_pending_stack_adjust ()
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (inhibit_defer_pop == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (pending_stack_adjust != 0)
adjust_stack (GEN_INT (pending_stack_adjust));
pending_stack_adjust = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Expand conditional expressions. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Generate code to evaluate EXP and jump to LABEL if the value is zero.
LABEL is an rtx of code CODE_LABEL, in this function and all the
functions here. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
jumpifnot (exp, label)
tree exp;
rtx label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump (exp, label, NULL_RTX);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */
void
jumpif (exp, label)
tree exp;
rtx label;
{
do_jump (exp, NULL_RTX, label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
the result is zero, or IF_TRUE_LABEL if the result is one.
Either of IF_FALSE_LABEL and IF_TRUE_LABEL may be zero,
meaning fall through in that case.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump always does any pending stack adjust except when it does not
actually perform a jump. An example where there is no jump
is when EXP is `(foo (), 0)' and IF_FALSE_LABEL is null.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
This function is responsible for optimizing cases such as
&&, || and comparison operators in EXP. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
do_jump (exp, if_false_label, if_true_label)
tree exp;
rtx if_false_label, if_true_label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum tree_code code = TREE_CODE (exp);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Some cases need to create a label to jump to
in order to properly fall through.
These cases set DROP_THROUGH_LABEL nonzero. */
rtx drop_through_label = 0;
rtx temp;
int i;
tree type;
enum machine_mode mode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef MAX_INTEGER_COMPUTATION_MODE
check_max_integer_computation_mode (exp);
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_queue ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
switch (code)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case ERROR_MARK:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case INTEGER_CST:
temp = integer_zerop (exp) ? if_false_label : if_true_label;
if (temp)
emit_jump (temp);
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#if 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* This is not true with #pragma weak */
case ADDR_EXPR:
/* The address of something can never be zero. */
if (if_true_label)
emit_jump (if_true_label);
break;
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case NOP_EXPR:
if (TREE_CODE (TREE_OPERAND (exp, 0)) == COMPONENT_REF
|| TREE_CODE (TREE_OPERAND (exp, 0)) == BIT_FIELD_REF
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| TREE_CODE (TREE_OPERAND (exp, 0)) == ARRAY_REF
|| TREE_CODE (TREE_OPERAND (exp, 0)) == ARRAY_RANGE_REF)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
goto normal;
case CONVERT_EXPR:
/* If we are narrowing the operand, we have to do the compare in the
narrower mode. */
if ((TYPE_PRECISION (TREE_TYPE (exp))
< TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (exp, 0)))))
goto normal;
case NON_LVALUE_EXPR:
case REFERENCE_EXPR:
case ABS_EXPR:
case NEGATE_EXPR:
case LROTATE_EXPR:
case RROTATE_EXPR:
/* These cannot change zero->non-zero or vice versa. */
do_jump (TREE_OPERAND (exp, 0), if_false_label, if_true_label);
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case WITH_RECORD_EXPR:
/* Put the object on the placeholder list, recurse through our first
operand, and pop the list. */
placeholder_list = tree_cons (TREE_OPERAND (exp, 1), NULL_TREE,
placeholder_list);
do_jump (TREE_OPERAND (exp, 0), if_false_label, if_true_label);
placeholder_list = TREE_CHAIN (placeholder_list);
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#if 0
/* This is never less insns than evaluating the PLUS_EXPR followed by
a test and can be longer if the test is eliminated. */
case PLUS_EXPR:
/* Reduce to minus. */
exp = build (MINUS_EXPR, TREE_TYPE (exp),
TREE_OPERAND (exp, 0),
fold (build1 (NEGATE_EXPR, TREE_TYPE (TREE_OPERAND (exp, 1)),
TREE_OPERAND (exp, 1))));
/* Process as MINUS. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case MINUS_EXPR:
/* Non-zero iff operands of minus differ. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (build (NE_EXPR, TREE_TYPE (exp),
TREE_OPERAND (exp, 0),
TREE_OPERAND (exp, 1)),
NE, NE, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case BIT_AND_EXPR:
/* If we are AND'ing with a small constant, do this comparison in the
smallest type that fits. If the machine doesn't have comparisons
that small, it will be converted back to the wider comparison.
This helps if we are testing the sign bit of a narrower object.
combine can't do this for us because it can't know whether a
ZERO_EXTRACT or a compare in a smaller mode exists, but we do. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! SLOW_BYTE_ACCESS
&& TREE_CODE (TREE_OPERAND (exp, 1)) == INTEGER_CST
&& TYPE_PRECISION (TREE_TYPE (exp)) <= HOST_BITS_PER_WIDE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& (i = tree_floor_log2 (TREE_OPERAND (exp, 1))) >= 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& (mode = mode_for_size (i + 1, MODE_INT, 0)) != BLKmode
&& (type = type_for_mode (mode, 1)) != 0
&& TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (exp))
&& (cmp_optab->handlers[(int) TYPE_MODE (type)].insn_code
!= CODE_FOR_nothing))
{
do_jump (convert (type, exp), if_false_label, if_true_label);
break;
}
goto normal;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case TRUTH_NOT_EXPR:
do_jump (TREE_OPERAND (exp, 0), if_true_label, if_false_label);
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case TRUTH_ANDIF_EXPR:
if (if_false_label == 0)
if_false_label = drop_through_label = gen_label_rtx ();
do_jump (TREE_OPERAND (exp, 0), if_false_label, NULL_RTX);
start_cleanup_deferral ();
do_jump (TREE_OPERAND (exp, 1), if_false_label, if_true_label);
end_cleanup_deferral ();
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case TRUTH_ORIF_EXPR:
if (if_true_label == 0)
if_true_label = drop_through_label = gen_label_rtx ();
do_jump (TREE_OPERAND (exp, 0), NULL_RTX, if_true_label);
start_cleanup_deferral ();
do_jump (TREE_OPERAND (exp, 1), if_false_label, if_true_label);
end_cleanup_deferral ();
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case COMPOUND_EXPR:
push_temp_slots ();
expand_expr (TREE_OPERAND (exp, 0), const0_rtx, VOIDmode, 0);
preserve_temp_slots (NULL_RTX);
free_temp_slots ();
pop_temp_slots ();
emit_queue ();
do_pending_stack_adjust ();
do_jump (TREE_OPERAND (exp, 1), if_false_label, if_true_label);
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case COMPONENT_REF:
case BIT_FIELD_REF:
case ARRAY_REF:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case ARRAY_RANGE_REF:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT bitsize, bitpos;
int unsignedp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode mode;
tree type;
tree offset;
int volatilep = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Get description of this reference. We don't actually care
about the underlying object here. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
get_inner_reference (exp, &bitsize, &bitpos, &offset, &mode,
&unsignedp, &volatilep);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
type = type_for_size (bitsize, unsignedp);
if (! SLOW_BYTE_ACCESS
&& type != 0 && bitsize >= 0
&& TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (exp))
&& (cmp_optab->handlers[(int) TYPE_MODE (type)].insn_code
!= CODE_FOR_nothing))
{
do_jump (convert (type, exp), if_false_label, if_true_label);
break;
}
goto normal;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case COND_EXPR:
/* Do (a ? 1 : 0) and (a ? 0 : 1) as special cases. */
if (integer_onep (TREE_OPERAND (exp, 1))
&& integer_zerop (TREE_OPERAND (exp, 2)))
do_jump (TREE_OPERAND (exp, 0), if_false_label, if_true_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (integer_zerop (TREE_OPERAND (exp, 1))
&& integer_onep (TREE_OPERAND (exp, 2)))
do_jump (TREE_OPERAND (exp, 0), if_true_label, if_false_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx label1 = gen_label_rtx ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
drop_through_label = gen_label_rtx ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump (TREE_OPERAND (exp, 0), label1, NULL_RTX);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
start_cleanup_deferral ();
/* Now the THEN-expression. */
do_jump (TREE_OPERAND (exp, 1),
if_false_label ? if_false_label : drop_through_label,
if_true_label ? if_true_label : drop_through_label);
/* In case the do_jump just above never jumps. */
do_pending_stack_adjust ();
emit_label (label1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Now the ELSE-expression. */
do_jump (TREE_OPERAND (exp, 2),
if_false_label ? if_false_label : drop_through_label,
if_true_label ? if_true_label : drop_through_label);
end_cleanup_deferral ();
}
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case EQ_EXPR:
{
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE_CLASS (TYPE_MODE (inner_type)) == MODE_COMPLEX_FLOAT
|| GET_MODE_CLASS (TYPE_MODE (inner_type)) == MODE_COMPLEX_INT)
{
tree exp0 = save_expr (TREE_OPERAND (exp, 0));
tree exp1 = save_expr (TREE_OPERAND (exp, 1));
do_jump
(fold
(build (TRUTH_ANDIF_EXPR, TREE_TYPE (exp),
fold (build (EQ_EXPR, TREE_TYPE (exp),
fold (build1 (REALPART_EXPR,
TREE_TYPE (inner_type),
exp0)),
fold (build1 (REALPART_EXPR,
TREE_TYPE (inner_type),
exp1)))),
fold (build (EQ_EXPR, TREE_TYPE (exp),
fold (build1 (IMAGPART_EXPR,
TREE_TYPE (inner_type),
exp0)),
fold (build1 (IMAGPART_EXPR,
TREE_TYPE (inner_type),
exp1)))))),
if_false_label, if_true_label);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (integer_zerop (TREE_OPERAND (exp, 1)))
do_jump (TREE_OPERAND (exp, 0), if_true_label, if_false_label);
else if (GET_MODE_CLASS (TYPE_MODE (inner_type)) == MODE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& !can_compare_p (EQ, TYPE_MODE (inner_type), ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_equality (exp, if_false_label, if_true_label);
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (exp, EQ, EQ, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case NE_EXPR:
{
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE_CLASS (TYPE_MODE (inner_type)) == MODE_COMPLEX_FLOAT
|| GET_MODE_CLASS (TYPE_MODE (inner_type)) == MODE_COMPLEX_INT)
{
tree exp0 = save_expr (TREE_OPERAND (exp, 0));
tree exp1 = save_expr (TREE_OPERAND (exp, 1));
do_jump
(fold
(build (TRUTH_ORIF_EXPR, TREE_TYPE (exp),
fold (build (NE_EXPR, TREE_TYPE (exp),
fold (build1 (REALPART_EXPR,
TREE_TYPE (inner_type),
exp0)),
fold (build1 (REALPART_EXPR,
TREE_TYPE (inner_type),
exp1)))),
fold (build (NE_EXPR, TREE_TYPE (exp),
fold (build1 (IMAGPART_EXPR,
TREE_TYPE (inner_type),
exp0)),
fold (build1 (IMAGPART_EXPR,
TREE_TYPE (inner_type),
exp1)))))),
if_false_label, if_true_label);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (integer_zerop (TREE_OPERAND (exp, 1)))
do_jump (TREE_OPERAND (exp, 0), if_false_label, if_true_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (GET_MODE_CLASS (TYPE_MODE (inner_type)) == MODE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& !can_compare_p (NE, TYPE_MODE (inner_type), ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_equality (exp, if_true_label, if_false_label);
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (exp, NE, NE, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case LT_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& ! can_compare_p (LT, mode, ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_greater (exp, 1, if_false_label, if_true_label);
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (exp, LT, LTU, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case LE_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& ! can_compare_p (LE, mode, ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_greater (exp, 0, if_true_label, if_false_label);
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (exp, LE, LEU, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case GT_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& ! can_compare_p (GT, mode, ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_greater (exp, 0, if_false_label, if_true_label);
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (exp, GT, GTU, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case GE_EXPR:
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (GET_MODE_CLASS (mode) == MODE_INT
&& ! can_compare_p (GE, mode, ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_greater (exp, 1, if_true_label, if_false_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_and_jump (exp, GE, GEU, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case UNORDERED_EXPR:
case ORDERED_EXPR:
{
enum rtx_code cmp, rcmp;
int do_rev;
if (code == UNORDERED_EXPR)
cmp = UNORDERED, rcmp = ORDERED;
else
cmp = ORDERED, rcmp = UNORDERED;
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
do_rev = 0;
if (! can_compare_p (cmp, mode, ccp_jump)
&& (can_compare_p (rcmp, mode, ccp_jump)
/* If the target doesn't provide either UNORDERED or ORDERED
comparisons, canonicalize on UNORDERED for the library. */
|| rcmp == UNORDERED))
do_rev = 1;
if (! do_rev)
do_compare_and_jump (exp, cmp, cmp, if_false_label, if_true_label);
else
do_compare_and_jump (exp, rcmp, rcmp, if_true_label, if_false_label);
}
break;
{
enum rtx_code rcode1;
enum tree_code tcode2;
case UNLT_EXPR:
rcode1 = UNLT;
tcode2 = LT_EXPR;
goto unordered_bcc;
case UNLE_EXPR:
rcode1 = UNLE;
tcode2 = LE_EXPR;
goto unordered_bcc;
case UNGT_EXPR:
rcode1 = UNGT;
tcode2 = GT_EXPR;
goto unordered_bcc;
case UNGE_EXPR:
rcode1 = UNGE;
tcode2 = GE_EXPR;
goto unordered_bcc;
case UNEQ_EXPR:
rcode1 = UNEQ;
tcode2 = EQ_EXPR;
goto unordered_bcc;
unordered_bcc:
mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
if (can_compare_p (rcode1, mode, ccp_jump))
do_compare_and_jump (exp, rcode1, rcode1, if_false_label,
if_true_label);
else
{
tree op0 = save_expr (TREE_OPERAND (exp, 0));
tree op1 = save_expr (TREE_OPERAND (exp, 1));
tree cmp0, cmp1;
/* If the target doesn't support combined unordered
compares, decompose into UNORDERED + comparison. */
cmp0 = fold (build (UNORDERED_EXPR, TREE_TYPE (exp), op0, op1));
cmp1 = fold (build (tcode2, TREE_TYPE (exp), op0, op1));
exp = build (TRUTH_ORIF_EXPR, TREE_TYPE (exp), cmp0, cmp1);
do_jump (exp, if_false_label, if_true_label);
}
}
break;
/* Special case:
__builtin_expect (<test>, 0) and
__builtin_expect (<test>, 1)
We need to do this here, so that <test> is not converted to a SCC
operation on machines that use condition code registers and COMPARE
like the PowerPC, and then the jump is done based on whether the SCC
operation produced a 1 or 0. */
case CALL_EXPR:
/* Check for a built-in function. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == ADDR_EXPR)
{
tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
tree arglist = TREE_OPERAND (exp, 1);
if (TREE_CODE (fndecl) == FUNCTION_DECL
&& DECL_BUILT_IN (fndecl)
&& DECL_FUNCTION_CODE (fndecl) == BUILT_IN_EXPECT
&& arglist != NULL_TREE
&& TREE_CHAIN (arglist) != NULL_TREE)
{
rtx seq = expand_builtin_expect_jump (exp, if_false_label,
if_true_label);
if (seq != NULL_RTX)
{
emit_insn (seq);
return;
}
}
}
/* fall through and generate the normal code. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
normal:
temp = expand_expr (exp, NULL_RTX, VOIDmode, 0);
#if 0
/* This is not needed any more and causes poor code since it causes
comparisons and tests from non-SI objects to have different code
sequences. */
/* Copy to register to avoid generating bad insns by cse
from (set (mem ...) (arithop)) (set (cc0) (mem ...)). */
if (!cse_not_expected && GET_CODE (temp) == MEM)
temp = copy_to_reg (temp);
#endif
do_pending_stack_adjust ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Do any postincrements in the expression that was tested. */
emit_queue ();
if (GET_CODE (temp) == CONST_INT
|| (GET_CODE (temp) == CONST_DOUBLE && GET_MODE (temp) == VOIDmode)
|| GET_CODE (temp) == LABEL_REF)
{
rtx target = temp == const0_rtx ? if_false_label : if_true_label;
if (target)
emit_jump (target);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (GET_MODE_CLASS (GET_MODE (temp)) == MODE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& ! can_compare_p (NE, GET_MODE (temp), ccp_jump))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Note swapping the labels gives us not-equal. */
do_jump_by_parts_equality_rtx (temp, if_true_label, if_false_label);
else if (GET_MODE (temp) != VOIDmode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_rtx_and_jump (temp, CONST0_RTX (GET_MODE (temp)),
NE, TREE_UNSIGNED (TREE_TYPE (exp)),
GET_MODE (temp), NULL_RTX,
if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
abort ();
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (drop_through_label)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If do_jump produces code that might be jumped around,
do any stack adjusts from that code, before the place
where control merges in. */
do_pending_stack_adjust ();
emit_label (drop_through_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
/* Given a comparison expression EXP for values too wide to be compared
with one insn, test the comparison and jump to the appropriate label.
The code of EXP is ignored; we always test GT if SWAP is 0,
and LT if SWAP is 1. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static void
do_jump_by_parts_greater (exp, swap, if_false_label, if_true_label)
tree exp;
int swap;
rtx if_false_label, if_true_label;
{
rtx op0 = expand_expr (TREE_OPERAND (exp, swap), NULL_RTX, VOIDmode, 0);
rtx op1 = expand_expr (TREE_OPERAND (exp, !swap), NULL_RTX, VOIDmode, 0);
enum machine_mode mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
int unsignedp = TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_jump_by_parts_greater_rtx (mode, unsignedp, op0, op1, if_false_label, if_true_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Compare OP0 with OP1, word at a time, in mode MODE.
UNSIGNEDP says to do unsigned comparison.
Jump to IF_TRUE_LABEL if OP0 is greater, IF_FALSE_LABEL otherwise. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_jump_by_parts_greater_rtx (mode, unsignedp, op0, op1, if_false_label, if_true_label)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int unsignedp;
rtx op0, op1;
rtx if_false_label, if_true_label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int nwords = (GET_MODE_SIZE (mode) / UNITS_PER_WORD);
rtx drop_through_label = 0;
int i;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! if_true_label || ! if_false_label)
drop_through_label = gen_label_rtx ();
if (! if_true_label)
if_true_label = drop_through_label;
if (! if_false_label)
if_false_label = drop_through_label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Compare a word at a time, high order first. */
for (i = 0; i < nwords; i++)
{
rtx op0_word, op1_word;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (WORDS_BIG_ENDIAN)
{
op0_word = operand_subword_force (op0, i, mode);
op1_word = operand_subword_force (op1, i, mode);
}
else
{
op0_word = operand_subword_force (op0, nwords - 1 - i, mode);
op1_word = operand_subword_force (op1, nwords - 1 - i, mode);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* All but high-order word must be compared as unsigned. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_rtx_and_jump (op0_word, op1_word, GT,
(unsignedp || i > 0), word_mode, NULL_RTX,
NULL_RTX, if_true_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Consider lower words only if these are equal. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_rtx_and_jump (op0_word, op1_word, NE, unsignedp, word_mode,
NULL_RTX, NULL_RTX, if_false_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (if_false_label)
emit_jump (if_false_label);
if (drop_through_label)
emit_label (drop_through_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Given an EQ_EXPR expression EXP for values too wide to be compared
with one insn, test the comparison and jump to the appropriate label. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static void
do_jump_by_parts_equality (exp, if_false_label, if_true_label)
tree exp;
rtx if_false_label, if_true_label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, VOIDmode, 0);
rtx op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
enum machine_mode mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
int nwords = (GET_MODE_SIZE (mode) / UNITS_PER_WORD);
int i;
rtx drop_through_label = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! if_false_label)
drop_through_label = if_false_label = gen_label_rtx ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
for (i = 0; i < nwords; i++)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_compare_rtx_and_jump (operand_subword_force (op0, i, mode),
operand_subword_force (op1, i, mode),
EQ, TREE_UNSIGNED (TREE_TYPE (exp)),
word_mode, NULL_RTX, if_false_label, NULL_RTX);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (if_true_label)
emit_jump (if_true_label);
if (drop_through_label)
emit_label (drop_through_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Jump according to whether OP0 is 0.
We assume that OP0 has an integer mode that is too wide
for the available compare insns. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
do_jump_by_parts_equality_rtx (op0, if_false_label, if_true_label)
rtx op0;
rtx if_false_label, if_true_label;
{
int nwords = GET_MODE_SIZE (GET_MODE (op0)) / UNITS_PER_WORD;
rtx part;
int i;
rtx drop_through_label = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* The fastest way of doing this comparison on almost any machine is to
"or" all the words and compare the result. If all have to be loaded
from memory and this is a very wide item, it's possible this may
be slower, but that's highly unlikely. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
part = gen_reg_rtx (word_mode);
emit_move_insn (part, operand_subword_force (op0, 0, GET_MODE (op0)));
for (i = 1; i < nwords && part != 0; i++)
part = expand_binop (word_mode, ior_optab, part,
operand_subword_force (op0, i, GET_MODE (op0)),
part, 1, OPTAB_WIDEN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (part != 0)
{
do_compare_rtx_and_jump (part, const0_rtx, EQ, 1, word_mode,
NULL_RTX, if_false_label, if_true_label);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If we couldn't do the "or" simply, do this with a series of compares. */
if (! if_false_label)
drop_through_label = if_false_label = gen_label_rtx ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for (i = 0; i < nwords; i++)
do_compare_rtx_and_jump (operand_subword_force (op0, i, GET_MODE (op0)),
const0_rtx, EQ, 1, word_mode, NULL_RTX,
if_false_label, NULL_RTX);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (if_true_label)
emit_jump (if_true_label);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (drop_through_label)
emit_label (drop_through_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Generate code for a comparison of OP0 and OP1 with rtx code CODE.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
(including code to compute the values to be compared)
and set (CC0) according to the result.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
The decision as to signed or unsigned comparison must be made by the caller.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
We force a stack adjustment unless there are currently
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
things pushed on the stack that aren't yet used.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
If MODE is BLKmode, SIZE is an RTX giving the size of the objects being
compared. */
rtx
compare_from_rtx (op0, op1, code, unsignedp, mode, size)
rtx op0, op1;
enum rtx_code code;
int unsignedp;
enum machine_mode mode;
rtx size;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx tem;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If one operand is constant, make it the second one. Only do this
if the other operand is not constant as well. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (swap_commutative_operands_p (op0, op1))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tem = op0;
op0 = op1;
op1 = tem;
code = swap_condition (code);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (flag_force_mem)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = force_not_mem (op0);
op1 = force_not_mem (op1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
do_pending_stack_adjust ();
if (GET_CODE (op0) == CONST_INT && GET_CODE (op1) == CONST_INT
&& (tem = simplify_relational_operation (code, mode, op0, op1)) != 0)
return tem;
#if 0
/* There's no need to do this now that combine.c can eliminate lots of
sign extensions. This can be less efficient in certain cases on other
machines. */
/* If this is a signed equality comparison, we can do it as an
unsigned comparison since zero-extension is cheaper than sign
extension and comparisons with zero are done as unsigned. This is
the case even on machines that can do fast sign extension, since
zero-extension is easier to combine with other operations than
sign-extension is. If we are comparing against a constant, we must
convert it to what it would look like unsigned. */
if ((code == EQ || code == NE) && ! unsignedp
&& GET_MODE_BITSIZE (GET_MODE (op0)) <= HOST_BITS_PER_WIDE_INT)
{
if (GET_CODE (op1) == CONST_INT
&& (INTVAL (op1) & GET_MODE_MASK (GET_MODE (op0))) != INTVAL (op1))
op1 = GEN_INT (INTVAL (op1) & GET_MODE_MASK (GET_MODE (op0)));
unsignedp = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_insn (op0, op1, code, size, mode, unsignedp);
return gen_rtx_fmt_ee (code, VOIDmode, cc0_rtx, const0_rtx);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Like do_compare_and_jump but expects the values to compare as two rtx's.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
The decision as to signed or unsigned comparison must be made by the caller.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
If MODE is BLKmode, SIZE is an RTX giving the size of the objects being
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
compared. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
void
do_compare_rtx_and_jump (op0, op1, code, unsignedp, mode, size,
if_false_label, if_true_label)
rtx op0, op1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum rtx_code code;
int unsignedp;
enum machine_mode mode;
rtx size;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx if_false_label, if_true_label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx tem;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int dummy_true_label = 0;
/* Reverse the comparison if that is safe and we want to jump if it is
false. */
if (! if_true_label && ! FLOAT_MODE_P (mode))
{
if_true_label = if_false_label;
if_false_label = 0;
code = reverse_condition (code);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If one operand is constant, make it the second one. Only do this
if the other operand is not constant as well. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (swap_commutative_operands_p (op0, op1))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
tem = op0;
op0 = op1;
op1 = tem;
code = swap_condition (code);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (flag_force_mem)
{
op0 = force_not_mem (op0);
op1 = force_not_mem (op1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_pending_stack_adjust ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (op0) == CONST_INT && GET_CODE (op1) == CONST_INT
&& (tem = simplify_relational_operation (code, mode, op0, op1)) != 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
if (tem == const_true_rtx)
{
if (if_true_label)
emit_jump (if_true_label);
}
else
{
if (if_false_label)
emit_jump (if_false_label);
}
return;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#if 0
/* There's no need to do this now that combine.c can eliminate lots of
sign extensions. This can be less efficient in certain cases on other
machines. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If this is a signed equality comparison, we can do it as an
unsigned comparison since zero-extension is cheaper than sign
extension and comparisons with zero are done as unsigned. This is
the case even on machines that can do fast sign extension, since
zero-extension is easier to combine with other operations than
sign-extension is. If we are comparing against a constant, we must
convert it to what it would look like unsigned. */
if ((code == EQ || code == NE) && ! unsignedp
&& GET_MODE_BITSIZE (GET_MODE (op0)) <= HOST_BITS_PER_WIDE_INT)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (op1) == CONST_INT
&& (INTVAL (op1) & GET_MODE_MASK (GET_MODE (op0))) != INTVAL (op1))
op1 = GEN_INT (INTVAL (op1) & GET_MODE_MASK (GET_MODE (op0)));
unsignedp = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! if_true_label)
{
dummy_true_label = 1;
if_true_label = gen_label_rtx ();
}
emit_cmp_and_jump_insns (op0, op1, code, size, mode, unsignedp,
if_true_label);
if (if_false_label)
emit_jump (if_false_label);
if (dummy_true_label)
emit_label (if_true_label);
}
/* Generate code for a comparison expression EXP (including code to compute
the values to be compared) and a conditional jump to IF_FALSE_LABEL and/or
IF_TRUE_LABEL. One of the labels can be NULL_RTX, in which case the
generated code will drop through.
SIGNED_CODE should be the rtx operation for this comparison for
signed data; UNSIGNED_CODE, likewise for use if data is unsigned.
We force a stack adjustment unless there are currently
things pushed on the stack that aren't yet used. */
static void
do_compare_and_jump (exp, signed_code, unsigned_code, if_false_label,
if_true_label)
tree exp;
enum rtx_code signed_code, unsigned_code;
rtx if_false_label, if_true_label;
{
rtx op0, op1;
tree type;
enum machine_mode mode;
int unsignedp;
enum rtx_code code;
/* Don't crash if the comparison was erroneous. */
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, VOIDmode, 0);
if (TREE_CODE (TREE_OPERAND (exp, 0)) == ERROR_MARK)
return;
op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
if (TREE_CODE (TREE_OPERAND (exp, 1)) == ERROR_MARK)
return;
type = TREE_TYPE (TREE_OPERAND (exp, 0));
mode = TYPE_MODE (type);
if (TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST
&& (TREE_CODE (TREE_OPERAND (exp, 1)) != INTEGER_CST
|| (GET_MODE_BITSIZE (mode)
> GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp,
1)))))))
{
/* op0 might have been replaced by promoted constant, in which
case the type of second argument should be used. */
type = TREE_TYPE (TREE_OPERAND (exp, 1));
mode = TYPE_MODE (type);
}
unsignedp = TREE_UNSIGNED (type);
code = unsignedp ? unsigned_code : signed_code;
#ifdef HAVE_canonicalize_funcptr_for_compare
/* If function pointers need to be "canonicalized" before they can
be reliably compared, then canonicalize them. */
if (HAVE_canonicalize_funcptr_for_compare
&& TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 0))) == POINTER_TYPE
&& (TREE_CODE (TREE_TYPE (TREE_TYPE (TREE_OPERAND (exp, 0))))
== FUNCTION_TYPE))
{
rtx new_op0 = gen_reg_rtx (mode);
emit_insn (gen_canonicalize_funcptr_for_compare (new_op0, op0));
op0 = new_op0;
}
if (HAVE_canonicalize_funcptr_for_compare
&& TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 1))) == POINTER_TYPE
&& (TREE_CODE (TREE_TYPE (TREE_TYPE (TREE_OPERAND (exp, 1))))
== FUNCTION_TYPE))
{
rtx new_op1 = gen_reg_rtx (mode);
emit_insn (gen_canonicalize_funcptr_for_compare (new_op1, op1));
op1 = new_op1;
}
#endif
/* Do any postincrements in the expression that was tested. */
emit_queue ();
do_compare_rtx_and_jump (op0, op1, code, unsignedp, mode,
((mode == BLKmode)
? expr_size (TREE_OPERAND (exp, 0)) : NULL_RTX),
if_false_label, if_true_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Generate code to calculate EXP using a store-flag instruction
and return an rtx for the result. EXP is either a comparison
or a TRUTH_NOT_EXPR whose operand is a comparison.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
If TARGET is nonzero, store the result there if convenient.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
If ONLY_CHEAP is non-zero, only do this if it is likely to be very
cheap.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Return zero if there is no suitable set-flag instruction
available on this machine.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Once expand_expr has been called on the arguments of the comparison,
we are committed to doing the store flag, since it is not safe to
re-evaluate the expression. We emit the store-flag insn by calling
emit_store_flag, but only expand the arguments if we have a reason
to believe that emit_store_flag will be successful. If we think that
it will, but it isn't, we have to simulate the store-flag with a
set/jump/set sequence. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static rtx
do_store_flag (exp, target, mode, only_cheap)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree exp;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx target;
enum machine_mode mode;
int only_cheap;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum rtx_code code;
tree arg0, arg1, type;
tree tem;
enum machine_mode operand_mode;
int invert = 0;
int unsignedp;
rtx op0, op1;
enum insn_code icode;
rtx subtarget = target;
rtx result, label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If this is a TRUTH_NOT_EXPR, set a flag indicating we must invert the
result at the end. We can't simply invert the test since it would
have already been inverted if it were valid. This case occurs for
some floating-point comparisons. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (exp) == TRUTH_NOT_EXPR)
invert = 1, exp = TREE_OPERAND (exp, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
arg0 = TREE_OPERAND (exp, 0);
arg1 = TREE_OPERAND (exp, 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Don't crash if the comparison was erroneous. */
if (arg0 == error_mark_node || arg1 == error_mark_node)
return const0_rtx;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
type = TREE_TYPE (arg0);
operand_mode = TYPE_MODE (type);
unsignedp = TREE_UNSIGNED (type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* We won't bother with BLKmode store-flag operations because it would mean
passing a lot of information to emit_store_flag. */
if (operand_mode == BLKmode)
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* We won't bother with store-flag operations involving function pointers
when function pointers must be canonicalized before comparisons. */
#ifdef HAVE_canonicalize_funcptr_for_compare
if (HAVE_canonicalize_funcptr_for_compare
&& ((TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 0))) == POINTER_TYPE
&& (TREE_CODE (TREE_TYPE (TREE_TYPE (TREE_OPERAND (exp, 0))))
== FUNCTION_TYPE))
|| (TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 1))) == POINTER_TYPE
&& (TREE_CODE (TREE_TYPE (TREE_TYPE (TREE_OPERAND (exp, 1))))
== FUNCTION_TYPE))))
return 0;
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
STRIP_NOPS (arg0);
STRIP_NOPS (arg1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Get the rtx comparison code to use. We know that EXP is a comparison
operation of some type. Some comparisons against 1 and -1 can be
converted to comparisons with zero. Do so here so that the tests
below will be aware that we have a comparison with zero. These
tests will not catch constants in the first operand, but constants
are rarely passed as the first operand. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
switch (TREE_CODE (exp))
{
case EQ_EXPR:
code = EQ;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case NE_EXPR:
code = NE;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case LT_EXPR:
if (integer_onep (arg1))
arg1 = integer_zero_node, code = unsignedp ? LEU : LE;
else
code = unsignedp ? LTU : LT;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case LE_EXPR:
if (! unsignedp && integer_all_onesp (arg1))
arg1 = integer_zero_node, code = LT;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
code = unsignedp ? LEU : LE;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case GT_EXPR:
if (! unsignedp && integer_all_onesp (arg1))
arg1 = integer_zero_node, code = GE;
else
code = unsignedp ? GTU : GT;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case GE_EXPR:
if (integer_onep (arg1))
arg1 = integer_zero_node, code = unsignedp ? GTU : GT;
else
code = unsignedp ? GEU : GE;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case UNORDERED_EXPR:
code = UNORDERED;
break;
case ORDERED_EXPR:
code = ORDERED;
break;
case UNLT_EXPR:
code = UNLT;
break;
case UNLE_EXPR:
code = UNLE;
break;
case UNGT_EXPR:
code = UNGT;
break;
case UNGE_EXPR:
code = UNGE;
break;
case UNEQ_EXPR:
code = UNEQ;
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
abort ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Put a constant second. */
if (TREE_CODE (arg0) == REAL_CST || TREE_CODE (arg0) == INTEGER_CST)
{
tem = arg0; arg0 = arg1; arg1 = tem;
code = swap_condition (code);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If this is an equality or inequality test of a single bit, we can
do this by shifting the bit being tested to the low-order bit and
masking the result with the constant 1. If the condition was EQ,
we xor it with 1. This does not require an scc insn and is faster
than an scc insn even if we have it. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if ((code == NE || code == EQ)
&& TREE_CODE (arg0) == BIT_AND_EXPR && integer_zerop (arg1)
&& integer_pow2p (TREE_OPERAND (arg0, 1)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
tree inner = TREE_OPERAND (arg0, 0);
int bitnum = tree_log2 (TREE_OPERAND (arg0, 1));
int ops_unsignedp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If INNER is a right shift of a constant and it plus BITNUM does
not overflow, adjust BITNUM and INNER. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (TREE_CODE (inner) == RSHIFT_EXPR
&& TREE_CODE (TREE_OPERAND (inner, 1)) == INTEGER_CST
&& TREE_INT_CST_HIGH (TREE_OPERAND (inner, 1)) == 0
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& bitnum < TYPE_PRECISION (type)
&& 0 > compare_tree_int (TREE_OPERAND (inner, 1),
bitnum - TYPE_PRECISION (type)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
bitnum += TREE_INT_CST_LOW (TREE_OPERAND (inner, 1));
inner = TREE_OPERAND (inner, 0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we are going to be able to omit the AND below, we must do our
operations as unsigned. If we must use the AND, we have a choice.
Normally unsigned is faster, but for some machines signed is. */
ops_unsignedp = (bitnum == TYPE_PRECISION (type) - 1 ? 1
#ifdef LOAD_EXTEND_OP
: (LOAD_EXTEND_OP (operand_mode) == SIGN_EXTEND ? 0 : 1)
#else
: 1
#endif
);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! get_subtarget (subtarget)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
|| GET_MODE (subtarget) != operand_mode
|| ! safe_from_p (subtarget, inner, 1))
subtarget = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = expand_expr (inner, subtarget, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (bitnum != 0)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op0 = expand_shift (RSHIFT_EXPR, operand_mode, op0,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
size_int (bitnum), subtarget, ops_unsignedp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_MODE (op0) != mode)
op0 = convert_to_mode (mode, op0, ops_unsignedp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if ((code == EQ && ! invert) || (code == NE && invert))
op0 = expand_binop (mode, xor_optab, op0, const1_rtx, subtarget,
ops_unsignedp, OPTAB_LIB_WIDEN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Put the AND last so it can combine with more things. */
if (bitnum != TYPE_PRECISION (type) - 1)
op0 = expand_and (op0, const1_rtx, subtarget);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return op0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Now see if we are likely to be able to do this. Return if not. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! can_compare_p (code, operand_mode, ccp_store_flag))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
icode = setcc_gen_code[(int) code];
if (icode == CODE_FOR_nothing
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (only_cheap && insn_data[(int) icode].operand[0].mode != mode))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
/* We can only do this if it is one of the special cases that
can be handled without an scc insn. */
if ((code == LT && integer_zerop (arg1))
|| (! only_cheap && code == GE && integer_zerop (arg1)))
;
else if (BRANCH_COST >= 0
&& ! only_cheap && (code == NE || code == EQ)
&& TREE_CODE (type) != REAL_TYPE
&& ((abs_optab->handlers[(int) operand_mode].insn_code
!= CODE_FOR_nothing)
|| (ffs_optab->handlers[(int) operand_mode].insn_code
!= CODE_FOR_nothing)))
;
else
return 0;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! get_subtarget (target)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
|| GET_MODE (subtarget) != operand_mode
|| ! safe_from_p (subtarget, arg1, 1))
subtarget = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
op0 = expand_expr (arg0, subtarget, VOIDmode, 0);
op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (target == 0)
target = gen_reg_rtx (mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Pass copies of OP0 and OP1 in case they contain a QUEUED. This is safe
because, if the emit_store_flag does anything it will succeed and
OP0 and OP1 will not be used subsequently. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
result = emit_store_flag (target, code,
queued_subexp_p (op0) ? copy_rtx (op0) : op0,
queued_subexp_p (op1) ? copy_rtx (op1) : op1,
operand_mode, unsignedp, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (result)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (invert)
result = expand_binop (mode, xor_optab, result, const1_rtx,
result, 0, OPTAB_LIB_WIDEN);
return result;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If this failed, we have to do this with set/compare/jump/set code. */
if (GET_CODE (target) != REG
|| reg_mentioned_p (target, op0) || reg_mentioned_p (target, op1))
target = gen_reg_rtx (GET_MODE (target));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_move_insn (target, invert ? const0_rtx : const1_rtx);
result = compare_from_rtx (op0, op1, code, unsignedp,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
operand_mode, NULL_RTX);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (GET_CODE (result) == CONST_INT)
return (((result == const0_rtx && ! invert)
|| (result != const0_rtx && invert))
? const0_rtx : const1_rtx);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* The code of RESULT may not match CODE if compare_from_rtx
decided to swap its operands and reverse the original code.
We know that compare_from_rtx returns either a CONST_INT or
a new comparison code, so it is safe to just extract the
code from RESULT. */
code = GET_CODE (result);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
label = gen_label_rtx ();
if (bcc_gen_fctn[(int) code] == 0)
abort ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_jump_insn ((*bcc_gen_fctn[(int) code]) (label));
emit_move_insn (target, invert ? const1_rtx : const0_rtx);
emit_label (label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Stubs in case we haven't got a casesi insn. */
#ifndef HAVE_casesi
# define HAVE_casesi 0
# define gen_casesi(a, b, c, d, e) (0)
# define CODE_FOR_casesi CODE_FOR_nothing
#endif
/* If the machine does not have a case insn that compares the bounds,
this means extra overhead for dispatch tables, which raises the
threshold for using them. */
#ifndef CASE_VALUES_THRESHOLD
#define CASE_VALUES_THRESHOLD (HAVE_casesi ? 4 : 5)
#endif /* CASE_VALUES_THRESHOLD */
unsigned int
case_values_threshold ()
{
return CASE_VALUES_THRESHOLD;
}
/* Attempt to generate a casesi instruction. Returns 1 if successful,
0 otherwise (i.e. if there is no casesi instruction). */
int
try_casesi (index_type, index_expr, minval, range,
table_label, default_label)
tree index_type, index_expr, minval, range;
rtx table_label ATTRIBUTE_UNUSED;
rtx default_label;
{
enum machine_mode index_mode = SImode;
int index_bits = GET_MODE_BITSIZE (index_mode);
rtx op1, op2, index;
enum machine_mode op_mode;
if (! HAVE_casesi)
return 0;
/* Convert the index to SImode. */
if (GET_MODE_BITSIZE (TYPE_MODE (index_type)) > GET_MODE_BITSIZE (index_mode))
{
enum machine_mode omode = TYPE_MODE (index_type);
rtx rangertx = expand_expr (range, NULL_RTX, VOIDmode, 0);
/* We must handle the endpoints in the original mode. */
index_expr = build (MINUS_EXPR, index_type,
index_expr, minval);
minval = integer_zero_node;
index = expand_expr (index_expr, NULL_RTX, VOIDmode, 0);
emit_cmp_and_jump_insns (rangertx, index, LTU, NULL_RTX,
omode, 1, default_label);
/* Now we can safely truncate. */
index = convert_to_mode (index_mode, index, 0);
}
else
{
if (TYPE_MODE (index_type) != index_mode)
{
index_expr = convert (type_for_size (index_bits, 0),
index_expr);
index_type = TREE_TYPE (index_expr);
}
index = expand_expr (index_expr, NULL_RTX, VOIDmode, 0);
}
emit_queue ();
index = protect_from_queue (index, 0);
do_pending_stack_adjust ();
op_mode = insn_data[(int) CODE_FOR_casesi].operand[0].mode;
if (! (*insn_data[(int) CODE_FOR_casesi].operand[0].predicate)
(index, op_mode))
index = copy_to_mode_reg (op_mode, index);
op1 = expand_expr (minval, NULL_RTX, VOIDmode, 0);
op_mode = insn_data[(int) CODE_FOR_casesi].operand[1].mode;
op1 = convert_modes (op_mode, TYPE_MODE (TREE_TYPE (minval)),
op1, TREE_UNSIGNED (TREE_TYPE (minval)));
if (! (*insn_data[(int) CODE_FOR_casesi].operand[1].predicate)
(op1, op_mode))
op1 = copy_to_mode_reg (op_mode, op1);
op2 = expand_expr (range, NULL_RTX, VOIDmode, 0);
op_mode = insn_data[(int) CODE_FOR_casesi].operand[2].mode;
op2 = convert_modes (op_mode, TYPE_MODE (TREE_TYPE (range)),
op2, TREE_UNSIGNED (TREE_TYPE (range)));
if (! (*insn_data[(int) CODE_FOR_casesi].operand[2].predicate)
(op2, op_mode))
op2 = copy_to_mode_reg (op_mode, op2);
emit_jump_insn (gen_casesi (index, op1, op2,
table_label, default_label));
return 1;
}
/* Attempt to generate a tablejump instruction; same concept. */
#ifndef HAVE_tablejump
#define HAVE_tablejump 0
#define gen_tablejump(x, y) (0)
#endif
/* Subroutine of the next function.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
INDEX is the value being switched on, with the lowest value
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
in the table already subtracted.
MODE is its expected mode (needed if INDEX is constant).
RANGE is the length of the jump table.
TABLE_LABEL is a CODE_LABEL rtx for the table itself.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
DEFAULT_LABEL is a CODE_LABEL rtx to jump to if the
index value is out of range. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static void
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
do_tablejump (index, mode, range, table_label, default_label)
rtx index, range, table_label, default_label;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode mode;
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx temp, vector;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Do an unsigned comparison (in the proper mode) between the index
expression and the value which represents the length of the range.
Since we just finished subtracting the lower bound of the range
from the index expression, this comparison allows us to simultaneously
check that the original index expression value is both greater than
or equal to the minimum value of the range and less than or equal to
the maximum value of the range. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_cmp_and_jump_insns (index, range, GTU, NULL_RTX, mode, 1,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
default_label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If index is in range, it must fit in Pmode.
Convert to Pmode so we can index with it. */
if (mode != Pmode)
index = convert_to_mode (Pmode, index, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Don't let a MEM slip thru, because then INDEX that comes
out of PIC_CASE_VECTOR_ADDRESS won't be a valid address,
and break_out_memory_refs will go to work on it and mess it up. */
#ifdef PIC_CASE_VECTOR_ADDRESS
if (flag_pic && GET_CODE (index) != REG)
index = copy_to_mode_reg (Pmode, index);
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If flag_force_addr were to affect this address
it could interfere with the tricky assumptions made
about addresses that contain label-refs,
which may be valid only very near the tablejump itself. */
/* ??? The only correct use of CASE_VECTOR_MODE is the one inside the
GET_MODE_SIZE, because this indicates how large insns are. The other
uses should all be Pmode, because they are addresses. This code
could fail if addresses and insns are not the same size. */
index = gen_rtx_PLUS (Pmode,
gen_rtx_MULT (Pmode, index,
GEN_INT (GET_MODE_SIZE (CASE_VECTOR_MODE))),
gen_rtx_LABEL_REF (Pmode, table_label));
#ifdef PIC_CASE_VECTOR_ADDRESS
if (flag_pic)
index = PIC_CASE_VECTOR_ADDRESS (index);
else
#endif
index = memory_address_noforce (CASE_VECTOR_MODE, index);
temp = gen_reg_rtx (CASE_VECTOR_MODE);
vector = gen_rtx_MEM (CASE_VECTOR_MODE, index);
RTX_UNCHANGING_P (vector) = 1;
convert_move (temp, vector, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_jump_insn (gen_tablejump (temp, table_label));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we are generating PIC code or if the table is PC-relative, the
table and JUMP_INSN must be adjacent, so don't output a BARRIER. */
if (! CASE_VECTOR_PC_RELATIVE && ! flag_pic)
emit_barrier ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int
try_tablejump (index_type, index_expr, minval, range,
table_label, default_label)
tree index_type, index_expr, minval, range;
rtx table_label, default_label;
{
rtx index;
if (! HAVE_tablejump)
return 0;
index_expr = fold (build (MINUS_EXPR, index_type,
convert (index_type, index_expr),
convert (index_type, minval)));
index = expand_expr (index_expr, NULL_RTX, VOIDmode, 0);
emit_queue ();
index = protect_from_queue (index, 0);
do_pending_stack_adjust ();
do_tablejump (index, TYPE_MODE (index_type),
convert_modes (TYPE_MODE (index_type),
TYPE_MODE (TREE_TYPE (range)),
expand_expr (range, NULL_RTX,
VOIDmode, 0),
TREE_UNSIGNED (TREE_TYPE (range))),
table_label, default_label);
return 1;
}
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