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2373 lines
90 KiB
C++
2373 lines
90 KiB
C++
/* Front-end tree definitions for GNU compiler.
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Copyright (C) 1989, 93-98, 1999 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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||
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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||
along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "machmode.h"
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#ifndef RTX_CODE
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struct rtx_def;
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#endif
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/* Codes of tree nodes */
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#define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM,
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enum tree_code {
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#include "tree.def"
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LAST_AND_UNUSED_TREE_CODE /* A convenient way to get a value for
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NUM_TREE_CODE. */
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};
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#undef DEFTREECODE
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/* Number of tree codes. */
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#define NUM_TREE_CODES ((int)LAST_AND_UNUSED_TREE_CODE)
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/* Indexed by enum tree_code, contains a character which is
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`<' for a comparison expression, `1', for a unary arithmetic
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expression, `2' for a binary arithmetic expression, `e' for
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other types of expressions, `r' for a reference, `c' for a
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constant, `d' for a decl, `t' for a type, `s' for a statement,
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and `x' for anything else (TREE_LIST, IDENTIFIER, etc). */
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#define MAX_TREE_CODES 256
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extern char tree_code_type[MAX_TREE_CODES];
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#define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)]
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/* Returns non-zero iff CLASS is the tree-code class of an
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expression. */
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#define IS_EXPR_CODE_CLASS(CLASS) \
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(CLASS == '<' || CLASS == '1' || CLASS == '2' || CLASS == 'e')
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/* Number of argument-words in each kind of tree-node. */
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extern int tree_code_length[MAX_TREE_CODES];
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/* Names of tree components. */
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extern char *tree_code_name[MAX_TREE_CODES];
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/* Codes that identify the various built in functions
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so that expand_call can identify them quickly. */
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enum built_in_function
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{
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NOT_BUILT_IN,
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BUILT_IN_ALLOCA,
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BUILT_IN_ABS,
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BUILT_IN_FABS,
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BUILT_IN_LABS,
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BUILT_IN_FFS,
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BUILT_IN_DIV,
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BUILT_IN_LDIV,
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BUILT_IN_FFLOOR,
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BUILT_IN_FCEIL,
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BUILT_IN_FMOD,
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BUILT_IN_FREM,
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BUILT_IN_MEMCPY,
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BUILT_IN_MEMCMP,
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BUILT_IN_MEMSET,
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BUILT_IN_STRCPY,
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BUILT_IN_STRCMP,
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BUILT_IN_STRLEN,
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BUILT_IN_FSQRT,
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BUILT_IN_SIN,
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BUILT_IN_COS,
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BUILT_IN_GETEXP,
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BUILT_IN_GETMAN,
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BUILT_IN_SAVEREGS,
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BUILT_IN_CLASSIFY_TYPE,
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BUILT_IN_NEXT_ARG,
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BUILT_IN_ARGS_INFO,
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BUILT_IN_CONSTANT_P,
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BUILT_IN_FRAME_ADDRESS,
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BUILT_IN_RETURN_ADDRESS,
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BUILT_IN_AGGREGATE_INCOMING_ADDRESS,
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BUILT_IN_APPLY_ARGS,
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BUILT_IN_APPLY,
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BUILT_IN_RETURN,
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BUILT_IN_SETJMP,
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BUILT_IN_LONGJMP,
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BUILT_IN_TRAP,
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/* Various hooks for the DWARF 2 __throw routine. */
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BUILT_IN_UNWIND_INIT,
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BUILT_IN_DWARF_CFA,
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BUILT_IN_DWARF_FP_REGNUM,
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BUILT_IN_DWARF_REG_SIZE,
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BUILT_IN_FROB_RETURN_ADDR,
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BUILT_IN_EXTRACT_RETURN_ADDR,
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BUILT_IN_EH_RETURN,
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/* C++ extensions */
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BUILT_IN_NEW,
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BUILT_IN_VEC_NEW,
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BUILT_IN_DELETE,
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BUILT_IN_VEC_DELETE,
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/* Upper bound on non-language-specific builtins. */
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END_BUILTINS
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};
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/* The definition of tree nodes fills the next several pages. */
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/* A tree node can represent a data type, a variable, an expression
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or a statement. Each node has a TREE_CODE which says what kind of
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thing it represents. Some common codes are:
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INTEGER_TYPE -- represents a type of integers.
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ARRAY_TYPE -- represents a type of pointer.
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VAR_DECL -- represents a declared variable.
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INTEGER_CST -- represents a constant integer value.
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PLUS_EXPR -- represents a sum (an expression).
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As for the contents of a tree node: there are some fields
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that all nodes share. Each TREE_CODE has various special-purpose
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fields as well. The fields of a node are never accessed directly,
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always through accessor macros. */
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/* This type is used everywhere to refer to a tree node. */
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typedef union tree_node *tree;
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/* Every kind of tree node starts with this structure,
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so all nodes have these fields.
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See the accessor macros, defined below, for documentation of the fields.
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DO NOT change the layout of tree_common unless absolutely necessary. Some
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front-ends (namely g++) depend on the internal layout of this tructure.
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See my_tree_cons in the cp subdir for such uglyness. Ugh. */
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struct tree_common
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{
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union tree_node *chain;
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union tree_node *type;
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#ifdef ONLY_INT_FIELDS
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unsigned int code : 8;
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#else
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enum tree_code code : 8;
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#endif
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unsigned side_effects_flag : 1;
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unsigned constant_flag : 1;
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unsigned permanent_flag : 1;
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unsigned addressable_flag : 1;
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unsigned volatile_flag : 1;
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unsigned readonly_flag : 1;
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unsigned unsigned_flag : 1;
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unsigned asm_written_flag: 1;
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unsigned used_flag : 1;
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unsigned raises_flag : 1;
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unsigned static_flag : 1;
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unsigned public_flag : 1;
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unsigned private_flag : 1;
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unsigned protected_flag : 1;
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unsigned lang_flag_0 : 1;
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unsigned lang_flag_1 : 1;
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unsigned lang_flag_2 : 1;
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unsigned lang_flag_3 : 1;
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unsigned lang_flag_4 : 1;
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unsigned lang_flag_5 : 1;
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unsigned lang_flag_6 : 1;
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/* There is room for three more flags. */
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};
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/* The following table lists the uses of each of the above flags and
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for which types of nodes they are defined. Note that expressions
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include decls.
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addressable_flag:
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TREE_ADDRESSABLE in
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VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, LABEL_DECL, ..._TYPE
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IDENTIFIER_NODE
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static_flag:
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TREE_STATIC in
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VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, ADDR_EXPR
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TREE_NO_UNUSED_WARNING in
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CONVERT_EXPR, NOP_EXPR, COMPOUND_EXPR
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TREE_VIA_VIRTUAL in
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TREE_LIST or TREE_VEC
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TREE_CONSTANT_OVERFLOW in
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INTEGER_CST, REAL_CST, COMPLEX_CST
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TREE_SYMBOL_REFERENCED in
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IDENTIFIER_NODE
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public_flag:
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TREE_OVERFLOW in
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INTEGER_CST, REAL_CST, COMPLEX_CST
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TREE_PUBLIC in
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VAR_DECL or FUNCTION_DECL
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TREE_VIA_PUBLIC in
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TREE_LIST or TREE_VEC
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EXPR_WFL_EMIT_LINE_NOTE in
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EXPR_WITH_FILE_LOCATION
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private_flag:
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TREE_VIA_PRIVATE in
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TREE_LIST or TREE_VEC
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TREE_PRIVATE in
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??? unspecified nodes
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protected_flag:
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TREE_VIA_PROTECTED in
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TREE_LIST
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TREE_PROTECTED in
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BLOCK
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??? unspecified nodes
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side_effects_flag:
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TREE_SIDE_EFFECTS in
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all expressions
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volatile_flag:
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TREE_THIS_VOLATILE in
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all expressions
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TYPE_VOLATILE in
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..._TYPE
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readonly_flag:
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TREE_READONLY in
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all expressions
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ITERATOR_BOUND_P in
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VAR_DECL if iterator (C)
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TYPE_READONLY in
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..._TYPE
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constant_flag:
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TREE_CONSTANT in
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all expressions
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permanent_flag: TREE_PERMANENT in all nodes
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unsigned_flag:
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TREE_UNSIGNED in
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INTEGER_TYPE, ENUMERAL_TYPE, FIELD_DECL
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DECL_BUILT_IN_NONANSI in
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FUNCTION_DECL
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TREE_PARMLIST in
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TREE_PARMLIST (C++)
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SAVE_EXPR_NOPLACEHOLDER in
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SAVE_EXPR
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asm_written_flag:
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TREE_ASM_WRITTEN in
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VAR_DECL, FUNCTION_DECL, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE
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BLOCK
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used_flag:
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TREE_USED in
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expressions, IDENTIFIER_NODE
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raises_flag:
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TREE_RAISES in
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expressions
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*/
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/* Define accessors for the fields that all tree nodes have
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(though some fields are not used for all kinds of nodes). */
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/* The tree-code says what kind of node it is.
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Codes are defined in tree.def. */
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#define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code)
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#define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (int) (VALUE))
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/* When checking is enabled, errors will be generated if a tree node
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is accessed incorrectly. The macros abort with a fatal error,
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except for the *1 variants, which just return 0 on failure. The
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latter variants should only be used for combination checks, which
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succeed when one of the checks succeed. The CHAIN_CHECK macro helps
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defining such checks. */
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#ifdef ENABLE_CHECKING
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#define DO_CHECK(FUNC, t, param) FUNC (t, param, __FILE__, __LINE__, 0)
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#define DO_CHECK1(FUNC, t, param) FUNC (t, param, __FILE__, __LINE__, 1)
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#define CHAIN_CHECK(t, c1, c2) (c1 (t) ? t : c2 (t))
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#else
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#define DO_CHECK(FUNC, t, param) (t)
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#define DO_CHECK1(FUNC, t, param) (t)
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#define CHAIN_CHECK(t, c1, c2) (t)
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#endif
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#define TREE_CHECK(t, code) DO_CHECK (tree_check, t, code)
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#define TREE_CHECK1(t, code) DO_CHECK1 (tree_check, t, code)
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#include "tree-check.h"
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#define TYPE_CHECK(tree) DO_CHECK (tree_class_check, tree, 't')
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#define TYPE_CHECK1(tree) DO_CHECK1 (tree_class_check, tree, 't')
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#define DECL_CHECK(t) DO_CHECK (tree_class_check, t, 'd')
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#define DECL_CHECK1(t) DO_CHECK1 (tree_class_check, t, 'd')
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#define CST_CHECK(t) DO_CHECK (tree_class_check, t, 'c')
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#define CST_CHECK1(t) DO_CHECK1 (tree_class_check, t, 'c')
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#define EXPR_CHECK(t) DO_CHECK (expr_check, t, 0)
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/* Chained checks. The last check has to succeed, the others may fail. */
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#define CST_OR_CONSTRUCTOR_CHECK(t) \
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CHAIN_CHECK (t, CST_CHECK1, CONSTRUCTOR_CHECK)
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/* In all nodes that are expressions, this is the data type of the expression.
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In POINTER_TYPE nodes, this is the type that the pointer points to.
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In ARRAY_TYPE nodes, this is the type of the elements. */
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#define TREE_TYPE(NODE) ((NODE)->common.type)
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/* Nodes are chained together for many purposes.
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Types are chained together to record them for being output to the debugger
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(see the function `chain_type').
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Decls in the same scope are chained together to record the contents
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of the scope.
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Statement nodes for successive statements used to be chained together.
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Often lists of things are represented by TREE_LIST nodes that
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are chained together. */
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#define TREE_CHAIN(NODE) ((NODE)->common.chain)
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/* Given an expression as a tree, strip any NON_LVALUE_EXPRs and NOP_EXPRs
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that don't change the machine mode. */
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#define STRIP_NOPS(EXP) \
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while ((TREE_CODE (EXP) == NOP_EXPR \
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|| TREE_CODE (EXP) == CONVERT_EXPR \
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|| TREE_CODE (EXP) == NON_LVALUE_EXPR) \
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&& (TYPE_MODE (TREE_TYPE (EXP)) \
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== TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \
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(EXP) = TREE_OPERAND (EXP, 0);
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/* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */
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#define STRIP_TYPE_NOPS(EXP) \
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while ((TREE_CODE (EXP) == NOP_EXPR \
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|| TREE_CODE (EXP) == CONVERT_EXPR \
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|| TREE_CODE (EXP) == NON_LVALUE_EXPR) \
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&& (TREE_TYPE (EXP) \
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== TREE_TYPE (TREE_OPERAND (EXP, 0)))) \
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(EXP) = TREE_OPERAND (EXP, 0);
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/* Nonzero if TYPE represents an integral type. Note that we do not
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include COMPLEX types here. */
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#define INTEGRAL_TYPE_P(TYPE) \
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(TREE_CODE (TYPE) == INTEGER_TYPE || TREE_CODE (TYPE) == ENUMERAL_TYPE \
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|| TREE_CODE (TYPE) == BOOLEAN_TYPE || TREE_CODE (TYPE) == CHAR_TYPE)
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/* Nonzero if TYPE represents a floating-point type, including complex
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floating-point types. */
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#define FLOAT_TYPE_P(TYPE) \
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(TREE_CODE (TYPE) == REAL_TYPE \
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|| (TREE_CODE (TYPE) == COMPLEX_TYPE \
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&& TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE))
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/* Nonzero if TYPE represents an aggregate (multi-component) type. */
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#define AGGREGATE_TYPE_P(TYPE) \
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(TREE_CODE (TYPE) == ARRAY_TYPE || TREE_CODE (TYPE) == RECORD_TYPE \
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|| TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \
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|| TREE_CODE (TYPE) == SET_TYPE)
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/* Nonzero if TYPE represents a pointer type. */
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#define POINTER_TYPE_P(TYPE) \
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(TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE)
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||
/* Nonzero if TYPE represents a type. */
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#define TYPE_P(TYPE) (TREE_CODE_CLASS (TREE_CODE (TYPE)) == 't')
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||
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||
/* Define many boolean fields that all tree nodes have. */
|
||
|
||
/* In VAR_DECL nodes, nonzero means address of this is needed.
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||
So it cannot be in a register.
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In a FUNCTION_DECL, nonzero means its address is needed.
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||
So it must be compiled even if it is an inline function.
|
||
In CONSTRUCTOR nodes, it means object constructed must be in memory.
|
||
In LABEL_DECL nodes, it means a goto for this label has been seen
|
||
from a place outside all binding contours that restore stack levels.
|
||
In ..._TYPE nodes, it means that objects of this type must
|
||
be fully addressable. This means that pieces of this
|
||
object cannot go into register parameters, for example.
|
||
In IDENTIFIER_NODEs, this means that some extern decl for this name
|
||
had its address taken. That matters for inline functions. */
|
||
#define TREE_ADDRESSABLE(NODE) ((NODE)->common.addressable_flag)
|
||
|
||
/* In a VAR_DECL, nonzero means allocate static storage.
|
||
In a FUNCTION_DECL, nonzero if function has been defined.
|
||
In a CONSTRUCTOR, nonzero means allocate static storage. */
|
||
#define TREE_STATIC(NODE) ((NODE)->common.static_flag)
|
||
|
||
/* In a CONVERT_EXPR, NOP_EXPR or COMPOUND_EXPR, this means the node was
|
||
made implicitly and should not lead to an "unused value" warning. */
|
||
#define TREE_NO_UNUSED_WARNING(NODE) ((NODE)->common.static_flag)
|
||
|
||
/* Nonzero for a TREE_LIST or TREE_VEC node means that the derivation
|
||
chain is via a `virtual' declaration. */
|
||
#define TREE_VIA_VIRTUAL(NODE) ((NODE)->common.static_flag)
|
||
|
||
/* In an INTEGER_CST, REAL_CST, or COMPLEX_CST, this means there was an
|
||
overflow in folding. This is distinct from TREE_OVERFLOW because ANSI C
|
||
requires a diagnostic when overflows occur in constant expressions. */
|
||
#define TREE_CONSTANT_OVERFLOW(NODE) ((NODE)->common.static_flag)
|
||
|
||
/* In an IDENTIFIER_NODE, this means that assemble_name was called with
|
||
this string as an argument. */
|
||
#define TREE_SYMBOL_REFERENCED(NODE) ((NODE)->common.static_flag)
|
||
|
||
/* In an INTEGER_CST, REAL_CST, of COMPLEX_CST, this means there was an
|
||
overflow in folding, and no warning has been issued for this subexpression.
|
||
TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW, but not vice versa. */
|
||
#define TREE_OVERFLOW(NODE) ((NODE)->common.public_flag)
|
||
|
||
/* In a VAR_DECL or FUNCTION_DECL,
|
||
nonzero means name is to be accessible from outside this module.
|
||
In an identifier node, nonzero means an external declaration
|
||
accessible from outside this module was previously seen
|
||
for this name in an inner scope. */
|
||
#define TREE_PUBLIC(NODE) ((NODE)->common.public_flag)
|
||
|
||
/* Nonzero for TREE_LIST or TREE_VEC node means that the path to the
|
||
base class is via a `public' declaration, which preserves public
|
||
fields from the base class as public. */
|
||
#define TREE_VIA_PUBLIC(NODE) ((NODE)->common.public_flag)
|
||
|
||
/* Ditto, for `private' declarations. */
|
||
#define TREE_VIA_PRIVATE(NODE) ((NODE)->common.private_flag)
|
||
|
||
/* Nonzero for TREE_LIST node means that the path to the
|
||
base class is via a `protected' declaration, which preserves
|
||
protected fields from the base class as protected.
|
||
OVERLOADED. */
|
||
#define TREE_VIA_PROTECTED(NODE) ((NODE)->common.protected_flag)
|
||
|
||
/* In any expression, nonzero means it has side effects or reevaluation
|
||
of the whole expression could produce a different value.
|
||
This is set if any subexpression is a function call, a side effect
|
||
or a reference to a volatile variable.
|
||
In a ..._DECL, this is set only if the declaration said `volatile'. */
|
||
#define TREE_SIDE_EFFECTS(NODE) ((NODE)->common.side_effects_flag)
|
||
|
||
/* Nonzero means this expression is volatile in the C sense:
|
||
its address should be of type `volatile WHATEVER *'.
|
||
In other words, the declared item is volatile qualified.
|
||
This is used in _DECL nodes and _REF nodes.
|
||
|
||
In a ..._TYPE node, means this type is volatile-qualified.
|
||
But use TYPE_VOLATILE instead of this macro when the node is a type,
|
||
because eventually we may make that a different bit.
|
||
|
||
If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */
|
||
#define TREE_THIS_VOLATILE(NODE) ((NODE)->common.volatile_flag)
|
||
|
||
/* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node,
|
||
nonzero means it may not be the lhs of an assignment.
|
||
In a ..._TYPE node, means this type is const-qualified
|
||
(but the macro TYPE_READONLY should be used instead of this macro
|
||
when the node is a type). */
|
||
#define TREE_READONLY(NODE) ((NODE)->common.readonly_flag)
|
||
|
||
/* Value of expression is constant.
|
||
Always appears in all ..._CST nodes.
|
||
May also appear in an arithmetic expression, an ADDR_EXPR or a CONSTRUCTOR
|
||
if the value is constant. */
|
||
#define TREE_CONSTANT(NODE) ((NODE)->common.constant_flag)
|
||
|
||
/* Nonzero means permanent node;
|
||
node will continue to exist for the entire compiler run.
|
||
Otherwise it will be recycled at the end of the function. */
|
||
#define TREE_PERMANENT(NODE) ((NODE)->common.permanent_flag)
|
||
|
||
/* In INTEGER_TYPE or ENUMERAL_TYPE nodes, means an unsigned type.
|
||
In FIELD_DECL nodes, means an unsigned bit field.
|
||
The same bit is used in functions as DECL_BUILT_IN_NONANSI. */
|
||
#define TREE_UNSIGNED(NODE) ((NODE)->common.unsigned_flag)
|
||
|
||
/* Nonzero in a VAR_DECL means assembler code has been written.
|
||
Nonzero in a FUNCTION_DECL means that the function has been compiled.
|
||
This is interesting in an inline function, since it might not need
|
||
to be compiled separately.
|
||
Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE
|
||
if the sdb debugging info for the type has been written.
|
||
In a BLOCK node, nonzero if reorder_blocks has already seen this block. */
|
||
#define TREE_ASM_WRITTEN(NODE) ((NODE)->common.asm_written_flag)
|
||
|
||
/* Nonzero in a _DECL if the name is used in its scope.
|
||
Nonzero in an expr node means inhibit warning if value is unused.
|
||
In IDENTIFIER_NODEs, this means that some extern decl for this name
|
||
was used. */
|
||
#define TREE_USED(NODE) ((NODE)->common.used_flag)
|
||
|
||
/* Nonzero for a tree node whose evaluation could result
|
||
in the raising of an exception. Not implemented yet. */
|
||
#define TREE_RAISES(NODE) ((NODE)->common.raises_flag)
|
||
|
||
/* Used in classes in C++. */
|
||
#define TREE_PRIVATE(NODE) ((NODE)->common.private_flag)
|
||
/* Used in classes in C++.
|
||
In a BLOCK node, this is BLOCK_HANDLER_BLOCK. */
|
||
#define TREE_PROTECTED(NODE) ((NODE)->common.protected_flag)
|
||
|
||
/* These flags are available for each language front end to use internally. */
|
||
#define TREE_LANG_FLAG_0(NODE) ((NODE)->common.lang_flag_0)
|
||
#define TREE_LANG_FLAG_1(NODE) ((NODE)->common.lang_flag_1)
|
||
#define TREE_LANG_FLAG_2(NODE) ((NODE)->common.lang_flag_2)
|
||
#define TREE_LANG_FLAG_3(NODE) ((NODE)->common.lang_flag_3)
|
||
#define TREE_LANG_FLAG_4(NODE) ((NODE)->common.lang_flag_4)
|
||
#define TREE_LANG_FLAG_5(NODE) ((NODE)->common.lang_flag_5)
|
||
#define TREE_LANG_FLAG_6(NODE) ((NODE)->common.lang_flag_6)
|
||
|
||
/* Define additional fields and accessors for nodes representing constants. */
|
||
|
||
/* In an INTEGER_CST node. These two together make a 2-word integer.
|
||
If the data type is signed, the value is sign-extended to 2 words
|
||
even though not all of them may really be in use.
|
||
In an unsigned constant shorter than 2 words, the extra bits are 0. */
|
||
#define TREE_INT_CST_LOW(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_low)
|
||
#define TREE_INT_CST_HIGH(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_high)
|
||
|
||
#define INT_CST_LT(A, B) \
|
||
(TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \
|
||
|| (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \
|
||
&& ((unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (A) \
|
||
< (unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (B))))
|
||
|
||
#define INT_CST_LT_UNSIGNED(A, B) \
|
||
(((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
|
||
< (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
|
||
|| (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
|
||
== (unsigned HOST_WIDE_INT ) TREE_INT_CST_HIGH (B)) \
|
||
&& (((unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (A) \
|
||
< (unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (B)))))
|
||
|
||
struct tree_int_cst
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
struct rtx_def *rtl; /* acts as link to register transfer language
|
||
(rtl) info */
|
||
HOST_WIDE_INT int_cst_low;
|
||
HOST_WIDE_INT int_cst_high;
|
||
};
|
||
|
||
/* In REAL_CST, STRING_CST, COMPLEX_CST nodes, and CONSTRUCTOR nodes,
|
||
and generally in all kinds of constants that could
|
||
be given labels (rather than being immediate). */
|
||
|
||
#define TREE_CST_RTL(NODE) (CST_OR_CONSTRUCTOR_CHECK (NODE)->real_cst.rtl)
|
||
|
||
/* In a REAL_CST node. */
|
||
/* We can represent a real value as either a `double' or a string.
|
||
Strings don't allow for any optimization, but they do allow
|
||
for cross-compilation. */
|
||
|
||
#define TREE_REAL_CST(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst)
|
||
|
||
#include "real.h"
|
||
|
||
struct tree_real_cst
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
struct rtx_def *rtl; /* acts as link to register transfer language
|
||
(rtl) info */
|
||
REAL_VALUE_TYPE real_cst;
|
||
};
|
||
|
||
/* In a STRING_CST */
|
||
#define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length)
|
||
#define TREE_STRING_POINTER(NODE) (STRING_CST_CHECK (NODE)->string.pointer)
|
||
|
||
struct tree_string
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
struct rtx_def *rtl; /* acts as link to register transfer language
|
||
(rtl) info */
|
||
int length;
|
||
char *pointer;
|
||
};
|
||
|
||
/* In a COMPLEX_CST node. */
|
||
#define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real)
|
||
#define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag)
|
||
|
||
struct tree_complex
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
struct rtx_def *rtl; /* acts as link to register transfer language
|
||
(rtl) info */
|
||
union tree_node *real;
|
||
union tree_node *imag;
|
||
};
|
||
|
||
/* Define fields and accessors for some special-purpose tree nodes. */
|
||
|
||
#define IDENTIFIER_LENGTH(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.length)
|
||
#define IDENTIFIER_POINTER(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.pointer)
|
||
|
||
struct tree_identifier
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
int length;
|
||
char *pointer;
|
||
};
|
||
|
||
/* In a TREE_LIST node. */
|
||
#define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose)
|
||
#define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value)
|
||
|
||
struct tree_list
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
union tree_node *purpose;
|
||
union tree_node *value;
|
||
};
|
||
|
||
/* In a TREE_VEC node. */
|
||
#define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length)
|
||
#define TREE_VEC_ELT(NODE,I) (TREE_VEC_CHECK (NODE)->vec.a[I])
|
||
#define TREE_VEC_END(NODE) ((void) TREE_VEC_CHECK (NODE),&((NODE)->vec.a[(NODE)->vec.length]))
|
||
|
||
struct tree_vec
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
int length;
|
||
union tree_node *a[1];
|
||
};
|
||
|
||
/* Define fields and accessors for some nodes that represent expressions. */
|
||
|
||
/* In a SAVE_EXPR node. */
|
||
#define SAVE_EXPR_CONTEXT(NODE) TREE_OPERAND(NODE, 1)
|
||
#define SAVE_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2])
|
||
#define SAVE_EXPR_NOPLACEHOLDER(NODE) TREE_UNSIGNED (NODE)
|
||
|
||
/* In a RTL_EXPR node. */
|
||
#define RTL_EXPR_SEQUENCE(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[0])
|
||
#define RTL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[1])
|
||
|
||
/* In a CALL_EXPR node. */
|
||
#define CALL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2])
|
||
|
||
/* In a CONSTRUCTOR node. */
|
||
#define CONSTRUCTOR_ELTS(NODE) TREE_OPERAND (NODE, 1)
|
||
|
||
/* In ordinary expression nodes. */
|
||
#define TREE_OPERAND(NODE, I) (EXPR_CHECK (NODE)->exp.operands[I])
|
||
#define TREE_COMPLEXITY(NODE) (EXPR_CHECK (NODE)->exp.complexity)
|
||
|
||
/* In a LABELED_BLOCK_EXPR node. */
|
||
#define LABELED_BLOCK_LABEL(NODE) TREE_OPERAND (NODE, 0)
|
||
#define LABELED_BLOCK_BODY(NODE) TREE_OPERAND (NODE, 1)
|
||
|
||
/* In a EXIT_BLOCK_EXPR node. */
|
||
#define EXIT_BLOCK_LABELED_BLOCK(NODE) TREE_OPERAND (NODE, 0)
|
||
#define EXIT_BLOCK_RETURN(NODE) TREE_OPERAND (NODE, 1)
|
||
|
||
/* In a LOOP_EXPR node. */
|
||
#define LOOP_EXPR_BODY(NODE) TREE_OPERAND (NODE, 0)
|
||
|
||
/* In a EXPR_WITH_FILE_LOCATION node. */
|
||
#define EXPR_WFL_NODE(NODE) TREE_OPERAND((NODE), 0)
|
||
#define EXPR_WFL_FILENAME(NODE) (IDENTIFIER_POINTER ((NODE)->common.chain))
|
||
#define EXPR_WFL_FILENAME_NODE(NODE) ((NODE)->common.chain)
|
||
#define EXPR_WFL_LINENO(NODE) (EXPR_CHECK (NODE)->exp.complexity >> 12)
|
||
#define EXPR_WFL_COLNO(NODE) (EXPR_CHECK (NODE)->exp.complexity & 0xfff)
|
||
#define EXPR_WFL_LINECOL(NODE) (EXPR_CHECK (NODE)->exp.complexity)
|
||
#define EXPR_WFL_SET_LINECOL(NODE, LINE, COL) \
|
||
(EXPR_WFL_LINECOL(NODE) = ((LINE) << 12) | ((COL) & 0xfff))
|
||
#define EXPR_WFL_EMIT_LINE_NOTE(NODE) ((NODE)->common.public_flag)
|
||
|
||
struct tree_exp
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
int complexity;
|
||
union tree_node *operands[1];
|
||
};
|
||
|
||
/* In a BLOCK node. */
|
||
#define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars)
|
||
#define BLOCK_TYPE_TAGS(NODE) (BLOCK_CHECK (NODE)->block.type_tags)
|
||
#define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks)
|
||
#define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext)
|
||
/* Note: when changing this, make sure to find the places
|
||
that use chainon or nreverse. */
|
||
#define BLOCK_CHAIN(NODE) TREE_CHAIN (NODE)
|
||
#define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin)
|
||
#define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag)
|
||
#define BLOCK_END_NOTE(NODE) (BLOCK_CHECK (NODE)->block.end_note)
|
||
/* Nonzero means that this block has separate live range regions */
|
||
#define BLOCK_LIVE_RANGE_FLAG(NOTE) (BLOCK_CHECK (NOTE)->block.live_range_flag)
|
||
|
||
/* Nonzero means that this block has a variable declared in it
|
||
that is split into separate live ranges. */
|
||
#define BLOCK_LIVE_RANGE_VAR_FLAG(NOTE) (BLOCK_CHECK (NOTE)->block.live_range_var_flag)
|
||
|
||
/* Index for marking the start of the block for live ranges. */
|
||
#define BLOCK_LIVE_RANGE_START(NOTE) (BLOCK_CHECK (NOTE)->block.live_range_start)
|
||
|
||
/* Index for marking the end of the block for live ranges. */
|
||
#define BLOCK_LIVE_RANGE_END(NOTE) (BLOCK_CHECK (NOTE)->block.live_range_end)
|
||
|
||
/* Nonzero means that this block is prepared to handle exceptions
|
||
listed in the BLOCK_VARS slot. */
|
||
#define BLOCK_HANDLER_BLOCK(NODE) (BLOCK_CHECK (NODE)->block.handler_block_flag)
|
||
|
||
struct tree_block
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
|
||
unsigned handler_block_flag : 1;
|
||
unsigned abstract_flag : 1;
|
||
unsigned live_range_flag : 1;
|
||
unsigned live_range_var_flag : 1;
|
||
|
||
union tree_node *vars;
|
||
union tree_node *type_tags;
|
||
union tree_node *subblocks;
|
||
union tree_node *supercontext;
|
||
union tree_node *abstract_origin;
|
||
struct rtx_def *end_note;
|
||
int live_range_start;
|
||
int live_range_end;
|
||
};
|
||
|
||
/* Define fields and accessors for nodes representing data types. */
|
||
|
||
/* See tree.def for documentation of the use of these fields.
|
||
Look at the documentation of the various ..._TYPE tree codes. */
|
||
|
||
#define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type.uid)
|
||
#define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type.size)
|
||
#define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type.size_unit)
|
||
#define TYPE_MODE(NODE) (TYPE_CHECK (NODE)->type.mode)
|
||
#define TYPE_VALUES(NODE) (TYPE_CHECK (NODE)->type.values)
|
||
#define TYPE_DOMAIN(NODE) (TYPE_CHECK (NODE)->type.values)
|
||
#define TYPE_FIELDS(NODE) (TYPE_CHECK (NODE)->type.values)
|
||
#define TYPE_METHODS(NODE) (TYPE_CHECK (NODE)->type.maxval)
|
||
#define TYPE_VFIELD(NODE) (TYPE_CHECK (NODE)->type.minval)
|
||
#define TYPE_ARG_TYPES(NODE) (TYPE_CHECK (NODE)->type.values)
|
||
#define TYPE_METHOD_BASETYPE(NODE) (TYPE_CHECK (NODE)->type.maxval)
|
||
#define TYPE_OFFSET_BASETYPE(NODE) (TYPE_CHECK (NODE)->type.maxval)
|
||
#define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type.pointer_to)
|
||
#define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type.reference_to)
|
||
#define TYPE_MIN_VALUE(NODE) (TYPE_CHECK (NODE)->type.minval)
|
||
#define TYPE_MAX_VALUE(NODE) (TYPE_CHECK (NODE)->type.maxval)
|
||
#define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type.precision)
|
||
#define TYPE_SYMTAB_ADDRESS(NODE) (TYPE_CHECK (NODE)->type.symtab.address)
|
||
#define TYPE_SYMTAB_POINTER(NODE) (TYPE_CHECK (NODE)->type.symtab.pointer)
|
||
#define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type.name)
|
||
#define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type.next_variant)
|
||
#define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant)
|
||
#define TYPE_NONCOPIED_PARTS(NODE) (TYPE_CHECK (NODE)->type.noncopied_parts)
|
||
#define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context)
|
||
#define TYPE_OBSTACK(NODE) (TYPE_CHECK (NODE)->type.obstack)
|
||
#define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific)
|
||
|
||
/* For aggregate types, information about this type, as a base type
|
||
for itself. Used in a language-dependent way for types that are
|
||
neither a RECORD_TYPE, QUAL_UNION_TYPE, nor a UNION_TYPE. */
|
||
#define TYPE_BINFO(NODE) (TYPE_CHECK (NODE)->type.binfo)
|
||
|
||
/* The (language-specific) typed-based alias set for this type.
|
||
Objects whose TYPE_ALIAS_SETs are different cannot alias each
|
||
other. If the TYPE_ALIAS_SET is -1, no alias set has yet been
|
||
assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this
|
||
type can alias objects of any type. */
|
||
#define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set)
|
||
|
||
/* Nonzero iff the typed-based alias set for this type has been
|
||
calculated. */
|
||
#define TYPE_ALIAS_SET_KNOWN_P(NODE) \
|
||
(TYPE_CHECK (NODE)->type.alias_set != -1)
|
||
|
||
/* A TREE_LIST of IDENTIFIER nodes of the attributes that apply
|
||
to this type. */
|
||
#define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes)
|
||
|
||
/* The alignment necessary for objects of this type.
|
||
The value is an int, measured in bits. */
|
||
#define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align)
|
||
|
||
#define TYPE_STUB_DECL(NODE) (TREE_CHAIN (NODE))
|
||
|
||
/* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type
|
||
has BLKmode only because it lacks the alignment requirement for
|
||
its size. */
|
||
#define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag)
|
||
|
||
/* Nonzero in a type considered volatile as a whole. */
|
||
#define TYPE_VOLATILE(NODE) ((NODE)->common.volatile_flag)
|
||
|
||
/* Means this type is const-qualified. */
|
||
#define TYPE_READONLY(NODE) ((NODE)->common.readonly_flag)
|
||
|
||
/* If nonzero, this type is `restrict'-qualified, in the C sense of
|
||
the term. */
|
||
#define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag)
|
||
|
||
/* There is a TYPE_QUAL value for each type qualifier. They can be
|
||
combined by bitwise-or to form the complete set of qualifiers for a
|
||
type. */
|
||
|
||
#define TYPE_UNQUALIFIED 0x0
|
||
#define TYPE_QUAL_CONST 0x1
|
||
#define TYPE_QUAL_VOLATILE 0x2
|
||
#define TYPE_QUAL_RESTRICT 0x4
|
||
|
||
/* The set of type qualifiers for this type. */
|
||
#define TYPE_QUALS(NODE) \
|
||
((TYPE_READONLY(NODE) * TYPE_QUAL_CONST) | \
|
||
(TYPE_VOLATILE(NODE) * TYPE_QUAL_VOLATILE) | \
|
||
(TYPE_RESTRICT(NODE) * TYPE_QUAL_RESTRICT))
|
||
|
||
/* These flags are available for each language front end to use internally. */
|
||
#define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0)
|
||
#define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type.lang_flag_1)
|
||
#define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type.lang_flag_2)
|
||
#define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type.lang_flag_3)
|
||
#define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type.lang_flag_4)
|
||
#define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type.lang_flag_5)
|
||
#define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type.lang_flag_6)
|
||
|
||
/* If set in an ARRAY_TYPE, indicates a string type (for languages
|
||
that distinguish string from array of char).
|
||
If set in a SET_TYPE, indicates a bitstring type. */
|
||
#define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type.string_flag)
|
||
|
||
/* If non-NULL, this is a upper bound of the size (in bytes) of an
|
||
object of the given ARRAY_TYPE. This allows temporaries to be allocated. */
|
||
#define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) TYPE_MAX_VALUE (ARRAY_TYPE)
|
||
|
||
/* Indicates that objects of this type must be initialized by calling a
|
||
function when they are created. */
|
||
#define TYPE_NEEDS_CONSTRUCTING(NODE) (TYPE_CHECK (NODE)->type.needs_constructing_flag)
|
||
|
||
/* Indicates that objects of this type (a UNION_TYPE), should be passed
|
||
the same way that the first union alternative would be passed. */
|
||
#define TYPE_TRANSPARENT_UNION(NODE) (TYPE_CHECK (NODE)->type.transparent_union_flag)
|
||
|
||
/* Indicated that objects of this type should be laid out in as
|
||
compact a way as possible. */
|
||
#define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->type.packed_flag)
|
||
|
||
struct tree_type
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
union tree_node *values;
|
||
union tree_node *size;
|
||
union tree_node *size_unit;
|
||
union tree_node *attributes;
|
||
unsigned uid;
|
||
|
||
unsigned char precision;
|
||
#ifdef ONLY_INT_FIELDS
|
||
int mode : 8;
|
||
#else
|
||
enum machine_mode mode : 8;
|
||
#endif
|
||
|
||
unsigned string_flag : 1;
|
||
unsigned no_force_blk_flag : 1;
|
||
unsigned needs_constructing_flag : 1;
|
||
unsigned transparent_union_flag : 1;
|
||
unsigned packed_flag : 1;
|
||
unsigned restrict_flag : 1;
|
||
|
||
unsigned lang_flag_0 : 1;
|
||
unsigned lang_flag_1 : 1;
|
||
unsigned lang_flag_2 : 1;
|
||
unsigned lang_flag_3 : 1;
|
||
unsigned lang_flag_4 : 1;
|
||
unsigned lang_flag_5 : 1;
|
||
unsigned lang_flag_6 : 1;
|
||
/* room for 3 more bits */
|
||
|
||
unsigned int align;
|
||
union tree_node *pointer_to;
|
||
union tree_node *reference_to;
|
||
union {int address; char *pointer; } symtab;
|
||
union tree_node *name;
|
||
union tree_node *minval;
|
||
union tree_node *maxval;
|
||
union tree_node *next_variant;
|
||
union tree_node *main_variant;
|
||
union tree_node *binfo;
|
||
union tree_node *noncopied_parts;
|
||
union tree_node *context;
|
||
struct obstack *obstack;
|
||
int alias_set;
|
||
/* Points to a structure whose details depend on the language in use. */
|
||
struct lang_type *lang_specific;
|
||
};
|
||
|
||
/* Define accessor macros for information about type inheritance
|
||
and basetypes.
|
||
|
||
A "basetype" means a particular usage of a data type for inheritance
|
||
in another type. Each such basetype usage has its own "binfo"
|
||
object to describe it. The binfo object is a TREE_VEC node.
|
||
|
||
Inheritance is represented by the binfo nodes allocated for a
|
||
given type. For example, given types C and D, such that D is
|
||
inherited by C, 3 binfo nodes will be allocated: one for describing
|
||
the binfo properties of C, similarly one for D, and one for
|
||
describing the binfo properties of D as a base type for C.
|
||
Thus, given a pointer to class C, one can get a pointer to the binfo
|
||
of D acting as a basetype for C by looking at C's binfo's basetypes. */
|
||
|
||
/* The actual data type node being inherited in this basetype. */
|
||
#define BINFO_TYPE(NODE) TREE_TYPE (NODE)
|
||
|
||
/* The offset where this basetype appears in its containing type.
|
||
BINFO_OFFSET slot holds the offset (in bytes)
|
||
from the base of the complete object to the base of the part of the
|
||
object that is allocated on behalf of this `type'.
|
||
This is always 0 except when there is multiple inheritance. */
|
||
|
||
#define BINFO_OFFSET(NODE) TREE_VEC_ELT ((NODE), 1)
|
||
#define TYPE_BINFO_OFFSET(NODE) BINFO_OFFSET (TYPE_BINFO (NODE))
|
||
#define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE)))
|
||
|
||
/* The virtual function table belonging to this basetype. Virtual
|
||
function tables provide a mechanism for run-time method dispatching.
|
||
The entries of a virtual function table are language-dependent. */
|
||
|
||
#define BINFO_VTABLE(NODE) TREE_VEC_ELT ((NODE), 2)
|
||
#define TYPE_BINFO_VTABLE(NODE) BINFO_VTABLE (TYPE_BINFO (NODE))
|
||
|
||
/* The virtual functions in the virtual function table. This is
|
||
a TREE_LIST that is used as an initial approximation for building
|
||
a virtual function table for this basetype. */
|
||
#define BINFO_VIRTUALS(NODE) TREE_VEC_ELT ((NODE), 3)
|
||
#define TYPE_BINFO_VIRTUALS(NODE) BINFO_VIRTUALS (TYPE_BINFO (NODE))
|
||
|
||
/* A vector of additional binfos for the types inherited by this basetype.
|
||
|
||
If this basetype describes type D as inherited in C,
|
||
and if the basetypes of D are E anf F,
|
||
then this vector contains binfos for inheritance of E and F by C.
|
||
|
||
??? This could probably be done by just allocating the
|
||
base types at the end of this TREE_VEC (instead of using
|
||
another TREE_VEC). This would simplify the calculation
|
||
of how many basetypes a given type had. */
|
||
#define BINFO_BASETYPES(NODE) TREE_VEC_ELT ((NODE), 4)
|
||
#define TYPE_BINFO_BASETYPES(NODE) TREE_VEC_ELT (TYPE_BINFO (NODE), 4)
|
||
|
||
/* Accessor macro to get to the Nth basetype of this basetype. */
|
||
#define BINFO_BASETYPE(NODE,N) TREE_VEC_ELT (BINFO_BASETYPES (NODE), (N))
|
||
#define TYPE_BINFO_BASETYPE(NODE,N) BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (NODE)), (N)))
|
||
|
||
/* For a BINFO record describing an inheritance, this yields a pointer
|
||
to the artificial FIELD_DECL node which contains the "virtual base
|
||
class pointer" for the given inheritance. */
|
||
#define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT ((NODE), 5)
|
||
|
||
/* The size of a base class subobject of this type. Not all frontends
|
||
currently allocate the space for this field. */
|
||
#define BINFO_SIZE(NODE) TREE_VEC_ELT ((NODE), 6)
|
||
#define TYPE_BINFO_SIZE(NODE) BINFO_SIZE (TYPE_BINFO (NODE))
|
||
|
||
/* Slot used to build a chain that represents a use of inheritance.
|
||
For example, if X is derived from Y, and Y is derived from Z,
|
||
then this field can be used to link the binfo node for X to
|
||
the binfo node for X's Y to represent the use of inheritance
|
||
from X to Y. Similarly, this slot of the binfo node for X's Y
|
||
can point to the Z from which Y is inherited (in X's inheritance
|
||
hierarchy). In this fashion, one can represent and traverse specific
|
||
uses of inheritance using the binfo nodes themselves (instead of
|
||
consing new space pointing to binfo nodes).
|
||
It is up to the language-dependent front-ends to maintain
|
||
this information as necessary. */
|
||
#define BINFO_INHERITANCE_CHAIN(NODE) TREE_VEC_ELT ((NODE), 0)
|
||
|
||
/* Define fields and accessors for nodes representing declared names. */
|
||
|
||
/* Nonzero if DECL represents a decl. */
|
||
#define DECL_P(DECL) (TREE_CODE_CLASS (TREE_CODE (DECL)) == 'd')
|
||
/* This is the name of the object as written by the user.
|
||
It is an IDENTIFIER_NODE. */
|
||
#define DECL_NAME(NODE) (DECL_CHECK (NODE)->decl.name)
|
||
/* This is the name of the object as the assembler will see it
|
||
(but before any translations made by ASM_OUTPUT_LABELREF).
|
||
Often this is the same as DECL_NAME.
|
||
It is an IDENTIFIER_NODE. */
|
||
#define DECL_ASSEMBLER_NAME(NODE) (DECL_CHECK (NODE)->decl.assembler_name)
|
||
/* Records the section name in a section attribute. Used to pass
|
||
the name from decl_attributes to make_function_rtl and make_decl_rtl. */
|
||
#define DECL_SECTION_NAME(NODE) (DECL_CHECK (NODE)->decl.section_name)
|
||
/* For FIELD_DECLs, this is the
|
||
RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE node that the field is
|
||
a member of. For VAR_DECL, PARM_DECL, FUNCTION_DECL, LABEL_DECL,
|
||
and CONST_DECL nodes, this points to either the FUNCTION_DECL for the
|
||
containing function, the RECORD_TYPE or UNION_TYPE for the containing
|
||
type, or NULL_TREE if the given decl has "file scope". */
|
||
#define DECL_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context)
|
||
#define DECL_FIELD_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context)
|
||
/* In a DECL this is the field where configuration dependent machine
|
||
attributes are store */
|
||
#define DECL_MACHINE_ATTRIBUTES(NODE) (DECL_CHECK (NODE)->decl.machine_attributes)
|
||
/* In a FIELD_DECL, this is the field position, counting in bits,
|
||
of the bit closest to the beginning of the structure. */
|
||
#define DECL_FIELD_BITPOS(NODE) (DECL_CHECK (NODE)->decl.arguments)
|
||
/* In a FIELD_DECL, this indicates whether the field was a bit-field and
|
||
if so, the type that was originally specified for it.
|
||
TREE_TYPE may have been modified (in finish_struct). */
|
||
#define DECL_BIT_FIELD_TYPE(NODE) (DECL_CHECK (NODE)->decl.result)
|
||
/* In FUNCTION_DECL, a chain of ..._DECL nodes. */
|
||
/* VAR_DECL and PARM_DECL reserve the arguments slot
|
||
for language-specific uses. */
|
||
#define DECL_ARGUMENTS(NODE) (DECL_CHECK (NODE)->decl.arguments)
|
||
/* In FUNCTION_DECL, holds the decl for the return value. */
|
||
#define DECL_RESULT(NODE) (DECL_CHECK (NODE)->decl.result)
|
||
/* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */
|
||
#define DECL_ORIGINAL_TYPE(NODE) (DECL_CHECK (NODE)->decl.result)
|
||
/* In PARM_DECL, holds the type as written (perhaps a function or array). */
|
||
#define DECL_ARG_TYPE_AS_WRITTEN(NODE) (DECL_CHECK (NODE)->decl.result)
|
||
/* For a FUNCTION_DECL, holds the tree of BINDINGs.
|
||
For a VAR_DECL, holds the initial value.
|
||
For a PARM_DECL, not used--default
|
||
values for parameters are encoded in the type of the function,
|
||
not in the PARM_DECL slot. */
|
||
#define DECL_INITIAL(NODE) (DECL_CHECK (NODE)->decl.initial)
|
||
/* For a PARM_DECL, records the data type used to pass the argument,
|
||
which may be different from the type seen in the program. */
|
||
#define DECL_ARG_TYPE(NODE) (DECL_CHECK (NODE)->decl.initial) /* In PARM_DECL. */
|
||
/* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which
|
||
if nonzero, indicates that the field occupies the type. */
|
||
#define DECL_QUALIFIER(NODE) (DECL_CHECK (NODE)->decl.initial)
|
||
/* These two fields describe where in the source code the declaration was. */
|
||
#define DECL_SOURCE_FILE(NODE) (DECL_CHECK (NODE)->decl.filename)
|
||
#define DECL_SOURCE_LINE(NODE) (DECL_CHECK (NODE)->decl.linenum)
|
||
/* Holds the size of the datum, as a tree expression.
|
||
Need not be constant. */
|
||
#define DECL_SIZE(NODE) (DECL_CHECK (NODE)->decl.size)
|
||
/* Holds the alignment required for the datum. */
|
||
#define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.frame_size.u)
|
||
/* Holds the machine mode corresponding to the declaration of a variable or
|
||
field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a
|
||
FIELD_DECL. */
|
||
#define DECL_MODE(NODE) (DECL_CHECK (NODE)->decl.mode)
|
||
/* Holds the RTL expression for the value of a variable or function. If
|
||
PROMOTED_MODE is defined, the mode of this expression may not be same
|
||
as DECL_MODE. In that case, DECL_MODE contains the mode corresponding
|
||
to the variable's data type, while the mode
|
||
of DECL_RTL is the mode actually used to contain the data. */
|
||
#define DECL_RTL(NODE) (DECL_CHECK (NODE)->decl.rtl)
|
||
/* Holds an INSN_LIST of all of the live ranges in which the variable
|
||
has been moved to a possibly different register. */
|
||
#define DECL_LIVE_RANGE_RTL(NODE) (DECL_CHECK (NODE)->decl.live_range_rtl)
|
||
/* For PARM_DECL, holds an RTL for the stack slot or register
|
||
where the data was actually passed. */
|
||
#define DECL_INCOMING_RTL(NODE) (DECL_CHECK (NODE)->decl.saved_insns.r)
|
||
/* For FUNCTION_DECL, if it is inline, holds the saved insn chain. */
|
||
#define DECL_SAVED_INSNS(NODE) (DECL_CHECK (NODE)->decl.saved_insns.r)
|
||
/* For FUNCTION_DECL, if it is inline,
|
||
holds the size of the stack frame, as an integer. */
|
||
#define DECL_FRAME_SIZE(NODE) (DECL_CHECK (NODE)->decl.frame_size.i)
|
||
/* For FUNCTION_DECL, if it is built-in,
|
||
this identifies which built-in operation it is. */
|
||
#define DECL_FUNCTION_CODE(NODE) (DECL_CHECK (NODE)->decl.frame_size.f)
|
||
#define DECL_SET_FUNCTION_CODE(NODE,VAL) (DECL_CHECK (NODE)->decl.frame_size.f = (VAL))
|
||
/* For a FIELD_DECL, holds the size of the member as an integer. */
|
||
#define DECL_FIELD_SIZE(NODE) (DECL_CHECK (NODE)->decl.saved_insns.i)
|
||
|
||
/* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways.
|
||
Before the struct containing the FUNCTION_DECL is laid out,
|
||
DECL_VINDEX may point to a FUNCTION_DECL in a base class which
|
||
is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual
|
||
function. When the class is laid out, this pointer is changed
|
||
to an INTEGER_CST node which is suitable for use as an index
|
||
into the virtual function table. */
|
||
#define DECL_VINDEX(NODE) (DECL_CHECK (NODE)->decl.vindex)
|
||
/* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in
|
||
which this FIELD_DECL is defined. This information is needed when
|
||
writing debugging information about vfield and vbase decls for C++. */
|
||
#define DECL_FCONTEXT(NODE) (DECL_CHECK (NODE)->decl.vindex)
|
||
|
||
/* Every ..._DECL node gets a unique number. */
|
||
#define DECL_UID(NODE) (DECL_CHECK (NODE)->decl.uid)
|
||
|
||
/* For any sort of a ..._DECL node, this points to the original (abstract)
|
||
decl node which this decl is an instance of, or else it is NULL indicating
|
||
that this decl is not an instance of some other decl. For example,
|
||
in a nested declaration of an inline function, this points back to the
|
||
definition. */
|
||
#define DECL_ABSTRACT_ORIGIN(NODE) (DECL_CHECK (NODE)->decl.abstract_origin)
|
||
|
||
/* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract
|
||
origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */
|
||
#define DECL_ORIGIN(NODE) \
|
||
(DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : NODE)
|
||
|
||
/* Nonzero for any sort of ..._DECL node means this decl node represents
|
||
an inline instance of some original (abstract) decl from an inline function;
|
||
suppress any warnings about shadowing some other variable. */
|
||
#define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != (tree) 0)
|
||
|
||
/* Nonzero if a _DECL means that the name of this decl should be ignored
|
||
for symbolic debug purposes. */
|
||
#define DECL_IGNORED_P(NODE) (DECL_CHECK (NODE)->decl.ignored_flag)
|
||
|
||
/* Nonzero for a given ..._DECL node means that this node represents an
|
||
"abstract instance" of the given declaration (e.g. in the original
|
||
declaration of an inline function). When generating symbolic debugging
|
||
information, we mustn't try to generate any address information for nodes
|
||
marked as "abstract instances" because we don't actually generate
|
||
any code or allocate any data space for such instances. */
|
||
#define DECL_ABSTRACT(NODE) (DECL_CHECK (NODE)->decl.abstract_flag)
|
||
|
||
/* Nonzero if a _DECL means that no warnings should be generated just
|
||
because this decl is unused. */
|
||
#define DECL_IN_SYSTEM_HEADER(NODE) (DECL_CHECK (NODE)->decl.in_system_header_flag)
|
||
|
||
/* Nonzero for a given ..._DECL node means that this node should be
|
||
put in .common, if possible. If a DECL_INITIAL is given, and it
|
||
is not error_mark_node, then the decl cannot be put in .common. */
|
||
#define DECL_COMMON(NODE) (DECL_CHECK (NODE)->decl.common_flag)
|
||
|
||
/* Language-specific decl information. */
|
||
#define DECL_LANG_SPECIFIC(NODE) (DECL_CHECK (NODE)->decl.lang_specific)
|
||
|
||
/* In a VAR_DECL or FUNCTION_DECL,
|
||
nonzero means external reference:
|
||
do not allocate storage, and refer to a definition elsewhere. */
|
||
#define DECL_EXTERNAL(NODE) (DECL_CHECK (NODE)->decl.external_flag)
|
||
|
||
/* In a VAR_DECL for a RECORD_TYPE, sets number for non-init_priority
|
||
initializatons. */
|
||
#define DEFAULT_INIT_PRIORITY 65535
|
||
#define MAX_INIT_PRIORITY 65535
|
||
#define MAX_RESERVED_INIT_PRIORITY 100
|
||
|
||
/* In a TYPE_DECL
|
||
nonzero means the detail info about this type is not dumped into stabs.
|
||
Instead it will generate cross reference ('x') of names.
|
||
This uses the same flag as DECL_EXTERNAL. */
|
||
#define TYPE_DECL_SUPPRESS_DEBUG(NODE) (DECL_CHECK (NODE)->decl.external_flag)
|
||
|
||
|
||
/* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */
|
||
#define DECL_REGISTER(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
|
||
/* In LABEL_DECL nodes, nonzero means that an error message about
|
||
jumping into such a binding contour has been printed for this label. */
|
||
#define DECL_ERROR_ISSUED(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
|
||
/* In a FIELD_DECL, indicates this field should be bit-packed. */
|
||
#define DECL_PACKED(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
|
||
/* In a FUNCTION_DECL with a non-zero DECL_CONTEXT, indicates that a
|
||
static chain is not needed. */
|
||
#define DECL_NO_STATIC_CHAIN(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
|
||
|
||
/* Nonzero in a ..._DECL means this variable is ref'd from a nested function.
|
||
For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes.
|
||
|
||
For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted.
|
||
|
||
Also set in some languages for variables, etc., outside the normal
|
||
lexical scope, such as class instance variables. */
|
||
#define DECL_NONLOCAL(NODE) (DECL_CHECK (NODE)->decl.nonlocal_flag)
|
||
|
||
/* Nonzero in a FUNCTION_DECL means this function can be substituted
|
||
where it is called. */
|
||
#define DECL_INLINE(NODE) (DECL_CHECK (NODE)->decl.inline_flag)
|
||
|
||
/* Nonzero in a FUNCTION_DECL means this is a built-in function
|
||
that is not specified by ansi C and that users are supposed to be allowed
|
||
to redefine for any purpose whatever. */
|
||
#define DECL_BUILT_IN_NONANSI(NODE) ((NODE)->common.unsigned_flag)
|
||
|
||
/* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed
|
||
specially. */
|
||
#define DECL_BIT_FIELD(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
|
||
/* In a LABEL_DECL, nonzero means label was defined inside a binding
|
||
contour that restored a stack level and which is now exited. */
|
||
#define DECL_TOO_LATE(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
|
||
/* In a FUNCTION_DECL, nonzero means a built in function. */
|
||
#define DECL_BUILT_IN(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
|
||
/* In a VAR_DECL that's static,
|
||
nonzero if the space is in the text section. */
|
||
#define DECL_IN_TEXT_SECTION(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
|
||
|
||
/* Used in VAR_DECLs to indicate that the variable is a vtable.
|
||
Used in FIELD_DECLs for vtable pointers.
|
||
Used in FUNCTION_DECLs to indicate that the function is virtual. */
|
||
#define DECL_VIRTUAL_P(NODE) (DECL_CHECK (NODE)->decl.virtual_flag)
|
||
|
||
/* Used to indicate that the linkage status of this DECL is not yet known,
|
||
so it should not be output now. */
|
||
#define DECL_DEFER_OUTPUT(NODE) (DECL_CHECK (NODE)->decl.defer_output)
|
||
|
||
/* Used in PARM_DECLs whose type are unions to indicate that the
|
||
argument should be passed in the same way that the first union
|
||
alternative would be passed. */
|
||
#define DECL_TRANSPARENT_UNION(NODE) (DECL_CHECK (NODE)->decl.transparent_union)
|
||
|
||
/* Used in FUNCTION_DECLs to indicate that they should be run automatically
|
||
at the beginning or end of execution. */
|
||
#define DECL_STATIC_CONSTRUCTOR(NODE) (DECL_CHECK (NODE)->decl.static_ctor_flag)
|
||
#define DECL_STATIC_DESTRUCTOR(NODE) (DECL_CHECK (NODE)->decl.static_dtor_flag)
|
||
|
||
/* Used to indicate that this DECL represents a compiler-generated entity. */
|
||
#define DECL_ARTIFICIAL(NODE) (DECL_CHECK (NODE)->decl.artificial_flag)
|
||
|
||
/* Used to indicate that this DECL has weak linkage. */
|
||
#define DECL_WEAK(NODE) (DECL_CHECK (NODE)->decl.weak_flag)
|
||
|
||
/* Used in TREE_PUBLIC decls to indicate that copies of this DECL in
|
||
multiple translation units should be merged. */
|
||
#define DECL_ONE_ONLY(NODE) (DECL_CHECK (NODE)->decl.transparent_union)
|
||
|
||
/* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need
|
||
not be put out unless it is needed in this translation unit.
|
||
Entities like this are shared across translation units (like weak
|
||
entities), but are guaranteed to be generated by any translation
|
||
unit that needs them, and therefore need not be put out anywhere
|
||
where they are not needed. DECL_COMDAT is just a hint to the
|
||
back-end; it is up to front-ends which set this flag to ensure
|
||
that there will never be any harm, other than bloat, in putting out
|
||
something which is DECL_COMDAT. */
|
||
#define DECL_COMDAT(NODE) (DECL_CHECK (NODE)->decl.comdat_flag)
|
||
|
||
/* Used in FUNCTION_DECLs to indicate that function entry and exit should
|
||
be instrumented with calls to support routines. */
|
||
#define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) ((NODE)->decl.no_instrument_function_entry_exit)
|
||
|
||
/* Used in FUNCTION_DECLs to indicate that in this function,
|
||
check-memory-usage should be disabled. */
|
||
#define DECL_NO_CHECK_MEMORY_USAGE(NODE) ((NODE)->decl.no_check_memory_usage)
|
||
|
||
/* Additional flags for language-specific uses. */
|
||
#define DECL_LANG_FLAG_0(NODE) (DECL_CHECK (NODE)->decl.lang_flag_0)
|
||
#define DECL_LANG_FLAG_1(NODE) (DECL_CHECK (NODE)->decl.lang_flag_1)
|
||
#define DECL_LANG_FLAG_2(NODE) (DECL_CHECK (NODE)->decl.lang_flag_2)
|
||
#define DECL_LANG_FLAG_3(NODE) (DECL_CHECK (NODE)->decl.lang_flag_3)
|
||
#define DECL_LANG_FLAG_4(NODE) (DECL_CHECK (NODE)->decl.lang_flag_4)
|
||
#define DECL_LANG_FLAG_5(NODE) (DECL_CHECK (NODE)->decl.lang_flag_5)
|
||
#define DECL_LANG_FLAG_6(NODE) (DECL_CHECK (NODE)->decl.lang_flag_6)
|
||
#define DECL_LANG_FLAG_7(NODE) (DECL_CHECK (NODE)->decl.lang_flag_7)
|
||
|
||
/* Used to indicate that the pointer to this DECL cannot be treated as
|
||
an address constant. */
|
||
#define DECL_NON_ADDR_CONST_P(NODE) (DECL_CHECK (NODE)->decl.non_addr_const_p)
|
||
|
||
/* Used to indicate an alias set for the memory pointed to by this
|
||
particular FIELD_DECL, PARM_DECL, or VAR_DECL, which must have
|
||
pointer (or reference) type. */
|
||
#define DECL_POINTER_ALIAS_SET(NODE) \
|
||
(DECL_CHECK (NODE)->decl.pointer_alias_set)
|
||
|
||
/* Nonzero if an alias set has been assigned to this declaration. */
|
||
#define DECL_POINTER_ALIAS_SET_KNOWN_P(NODE) \
|
||
(DECL_POINTER_ALIAS_SET (NODE) != - 1)
|
||
|
||
struct tree_decl
|
||
{
|
||
char common[sizeof (struct tree_common)];
|
||
char *filename;
|
||
int linenum;
|
||
unsigned int uid;
|
||
union tree_node *size;
|
||
#ifdef ONLY_INT_FIELDS
|
||
int mode : 8;
|
||
#else
|
||
enum machine_mode mode : 8;
|
||
#endif
|
||
|
||
unsigned external_flag : 1;
|
||
unsigned nonlocal_flag : 1;
|
||
unsigned regdecl_flag : 1;
|
||
unsigned inline_flag : 1;
|
||
unsigned bit_field_flag : 1;
|
||
unsigned virtual_flag : 1;
|
||
unsigned ignored_flag : 1;
|
||
unsigned abstract_flag : 1;
|
||
|
||
unsigned in_system_header_flag : 1;
|
||
unsigned common_flag : 1;
|
||
unsigned defer_output : 1;
|
||
unsigned transparent_union : 1;
|
||
unsigned static_ctor_flag : 1;
|
||
unsigned static_dtor_flag : 1;
|
||
unsigned artificial_flag : 1;
|
||
unsigned weak_flag : 1;
|
||
|
||
unsigned lang_flag_0 : 1;
|
||
unsigned lang_flag_1 : 1;
|
||
unsigned lang_flag_2 : 1;
|
||
unsigned lang_flag_3 : 1;
|
||
unsigned lang_flag_4 : 1;
|
||
unsigned lang_flag_5 : 1;
|
||
unsigned lang_flag_6 : 1;
|
||
unsigned lang_flag_7 : 1;
|
||
|
||
unsigned non_addr_const_p : 1;
|
||
unsigned no_instrument_function_entry_exit : 1;
|
||
unsigned no_check_memory_usage : 1;
|
||
unsigned comdat_flag : 1;
|
||
|
||
/* For a FUNCTION_DECL, if inline, this is the size of frame needed.
|
||
If built-in, this is the code for which built-in function.
|
||
For other kinds of decls, this is DECL_ALIGN. */
|
||
union {
|
||
int i;
|
||
unsigned int u;
|
||
enum built_in_function f;
|
||
} frame_size;
|
||
|
||
union tree_node *name;
|
||
union tree_node *context;
|
||
union tree_node *arguments;
|
||
union tree_node *result;
|
||
union tree_node *initial;
|
||
union tree_node *abstract_origin;
|
||
union tree_node *assembler_name;
|
||
union tree_node *section_name;
|
||
union tree_node *machine_attributes;
|
||
struct rtx_def *rtl; /* acts as link to register transfer language
|
||
(rtl) info */
|
||
struct rtx_def *live_range_rtl;
|
||
/* For FUNCTION_DECLs: points to insn that constitutes its definition
|
||
on the permanent obstack. For FIELD_DECL, this is DECL_FIELD_SIZE. */
|
||
union {
|
||
struct rtx_def *r;
|
||
HOST_WIDE_INT i;
|
||
} saved_insns;
|
||
union tree_node *vindex;
|
||
int pointer_alias_set;
|
||
/* Points to a structure whose details depend on the language in use. */
|
||
struct lang_decl *lang_specific;
|
||
};
|
||
|
||
/* Define the overall contents of a tree node.
|
||
It may be any of the structures declared above
|
||
for various types of node. */
|
||
|
||
union tree_node
|
||
{
|
||
struct tree_common common;
|
||
struct tree_int_cst int_cst;
|
||
struct tree_real_cst real_cst;
|
||
struct tree_string string;
|
||
struct tree_complex complex;
|
||
struct tree_identifier identifier;
|
||
struct tree_decl decl;
|
||
struct tree_type type;
|
||
struct tree_list list;
|
||
struct tree_vec vec;
|
||
struct tree_exp exp;
|
||
struct tree_block block;
|
||
};
|
||
|
||
#define NULL_TREE (tree) NULL
|
||
|
||
/* The following functions accept a wide integer argument. Rather than
|
||
having to cast on every function call, we use a macro instead, that is
|
||
defined here and in rtl.h. */
|
||
|
||
#ifndef exact_log2
|
||
#define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N))
|
||
#define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N))
|
||
#endif
|
||
extern int exact_log2_wide PROTO((unsigned HOST_WIDE_INT));
|
||
extern int floor_log2_wide PROTO((unsigned HOST_WIDE_INT));
|
||
|
||
extern char *oballoc PROTO((int));
|
||
extern char *permalloc PROTO((int));
|
||
extern char *savealloc PROTO((int));
|
||
extern char *expralloc PROTO((int));
|
||
|
||
/* Lowest level primitive for allocating a node.
|
||
The TREE_CODE is the only argument. Contents are initialized
|
||
to zero except for a few of the common fields. */
|
||
|
||
extern tree make_node PROTO((enum tree_code));
|
||
|
||
/* Make a copy of a node, with all the same contents except
|
||
for TREE_PERMANENT. (The copy is permanent
|
||
iff nodes being made now are permanent.) */
|
||
|
||
extern tree copy_node PROTO((tree));
|
||
|
||
/* Make a copy of a chain of TREE_LIST nodes. */
|
||
|
||
extern tree copy_list PROTO((tree));
|
||
|
||
/* Make a TREE_VEC. */
|
||
|
||
extern tree make_tree_vec PROTO((int));
|
||
|
||
/* Return the (unique) IDENTIFIER_NODE node for a given name.
|
||
The name is supplied as a char *. */
|
||
|
||
extern tree get_identifier PROTO((const char *));
|
||
|
||
/* If an identifier with the name TEXT (a null-terminated string) has
|
||
previously been referred to, return that node; otherwise return
|
||
NULL_TREE. */
|
||
|
||
extern tree maybe_get_identifier PROTO((const char *));
|
||
|
||
/* Construct various types of nodes. */
|
||
|
||
#define build_int_2(LO,HI) \
|
||
build_int_2_wide ((HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI))
|
||
|
||
extern tree build PVPROTO((enum tree_code, tree, ...));
|
||
extern tree build_nt PVPROTO((enum tree_code, ...));
|
||
extern tree build_parse_node PVPROTO((enum tree_code, ...));
|
||
|
||
extern tree build_int_2_wide PROTO((HOST_WIDE_INT, HOST_WIDE_INT));
|
||
extern tree build_real PROTO((tree, REAL_VALUE_TYPE));
|
||
extern tree build_real_from_int_cst PROTO((tree, tree));
|
||
extern tree build_complex PROTO((tree, tree, tree));
|
||
extern tree build_string PROTO((int, const char *));
|
||
extern tree build1 PROTO((enum tree_code, tree, tree));
|
||
extern tree build_tree_list PROTO((tree, tree));
|
||
extern tree build_decl_list PROTO((tree, tree));
|
||
extern tree build_expr_list PROTO((tree, tree));
|
||
extern tree build_decl PROTO((enum tree_code, tree, tree));
|
||
extern tree build_block PROTO((tree, tree, tree, tree, tree));
|
||
extern tree build_expr_wfl PROTO((tree, const char *, int, int));
|
||
|
||
/* Construct various nodes representing data types. */
|
||
|
||
extern tree make_signed_type PROTO((int));
|
||
extern tree make_unsigned_type PROTO((int));
|
||
extern void set_sizetype PROTO((tree));
|
||
extern tree signed_or_unsigned_type PROTO((int, tree));
|
||
extern void fixup_unsigned_type PROTO((tree));
|
||
extern tree build_pointer_type PROTO((tree));
|
||
extern tree build_reference_type PROTO((tree));
|
||
extern tree build_index_type PROTO((tree));
|
||
extern tree build_index_2_type PROTO((tree, tree));
|
||
extern tree build_array_type PROTO((tree, tree));
|
||
extern tree build_function_type PROTO((tree, tree));
|
||
extern tree build_method_type PROTO((tree, tree));
|
||
extern tree build_offset_type PROTO((tree, tree));
|
||
extern tree build_complex_type PROTO((tree));
|
||
extern tree array_type_nelts PROTO((tree));
|
||
|
||
extern tree value_member PROTO((tree, tree));
|
||
extern tree purpose_member PROTO((tree, tree));
|
||
extern tree binfo_member PROTO((tree, tree));
|
||
extern int attribute_hash_list PROTO((tree));
|
||
extern int attribute_list_equal PROTO((tree, tree));
|
||
extern int attribute_list_contained PROTO((tree, tree));
|
||
extern int tree_int_cst_equal PROTO((tree, tree));
|
||
extern int tree_int_cst_lt PROTO((tree, tree));
|
||
extern int tree_int_cst_sgn PROTO((tree));
|
||
extern int index_type_equal PROTO((tree, tree));
|
||
extern tree get_inner_array_type PROTO((tree));
|
||
|
||
/* From expmed.c. Since rtl.h is included after tree.h, we can't
|
||
put the prototype here. Rtl.h does declare the prototype if
|
||
tree.h had been included. */
|
||
|
||
extern tree make_tree PROTO((tree, struct rtx_def *));
|
||
|
||
/* Return a type like TTYPE except that its TYPE_ATTRIBUTES
|
||
is ATTRIBUTE.
|
||
|
||
Such modified types already made are recorded so that duplicates
|
||
are not made. */
|
||
|
||
extern tree build_type_attribute_variant PROTO((tree, tree));
|
||
extern tree build_decl_attribute_variant PROTO((tree, tree));
|
||
|
||
extern tree merge_machine_decl_attributes PROTO((tree, tree));
|
||
extern tree merge_machine_type_attributes PROTO((tree, tree));
|
||
|
||
/* Split a list of declspecs and attributes into two. */
|
||
|
||
extern void split_specs_attrs PROTO((tree, tree *, tree *));
|
||
|
||
/* Strip attributes from a list of combined specs and attrs. */
|
||
|
||
extern tree strip_attrs PROTO((tree));
|
||
|
||
/* Return 1 if an attribute and its arguments are valid for a decl or type. */
|
||
|
||
extern int valid_machine_attribute PROTO((tree, tree, tree, tree));
|
||
|
||
/* Given a tree node and a string, return non-zero if the tree node is
|
||
a valid attribute name for the string. */
|
||
|
||
extern int is_attribute_p PROTO((const char *, tree));
|
||
|
||
/* Given an attribute name and a list of attributes, return the list element
|
||
of the attribute or NULL_TREE if not found. */
|
||
|
||
extern tree lookup_attribute PROTO((const char *, tree));
|
||
|
||
/* Given two attributes lists, return a list of their union. */
|
||
|
||
extern tree merge_attributes PROTO((tree, tree));
|
||
|
||
/* Given a type node TYPE and a TYPE_QUALIFIER_SET, return a type for
|
||
the same kind of data as TYPE describes. Variants point to the
|
||
"main variant" (which has no qualifiers set) via TYPE_MAIN_VARIANT,
|
||
and it points to a chain of other variants so that duplicate
|
||
variants are never made. Only main variants should ever appear as
|
||
types of expressions. */
|
||
|
||
extern tree build_qualified_type PROTO((tree, int));
|
||
|
||
/* Like build_qualified_type, but only deals with the `const' and
|
||
`volatile' qualifiers. This interface is retained for backwards
|
||
compatiblity with the various front-ends; new code should use
|
||
build_qualified_type instead. */
|
||
|
||
#define build_type_variant(TYPE, CONST_P, VOLATILE_P) \
|
||
build_qualified_type (TYPE, \
|
||
((CONST_P) ? TYPE_QUAL_CONST : 0) \
|
||
| ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
|
||
|
||
/* Make a copy of a type node. */
|
||
|
||
extern tree build_type_copy PROTO((tree));
|
||
|
||
/* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT,
|
||
TYPE_ALIGN and TYPE_MODE fields.
|
||
If called more than once on one node, does nothing except
|
||
for the first time. */
|
||
|
||
extern void layout_type PROTO((tree));
|
||
|
||
/* Given a hashcode and a ..._TYPE node (for which the hashcode was made),
|
||
return a canonicalized ..._TYPE node, so that duplicates are not made.
|
||
How the hash code is computed is up to the caller, as long as any two
|
||
callers that could hash identical-looking type nodes agree. */
|
||
|
||
extern tree type_hash_canon PROTO((int, tree));
|
||
|
||
/* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node,
|
||
calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE
|
||
fields. Call this only once for any given decl node.
|
||
|
||
Second argument is the boundary that this field can be assumed to
|
||
be starting at (in bits). Zero means it can be assumed aligned
|
||
on any boundary that may be needed. */
|
||
|
||
extern void layout_decl PROTO((tree, unsigned));
|
||
|
||
/* Return an expr equal to X but certainly not valid as an lvalue. */
|
||
|
||
extern tree non_lvalue PROTO((tree));
|
||
extern tree pedantic_non_lvalue PROTO((tree));
|
||
|
||
extern tree convert PROTO((tree, tree));
|
||
extern tree size_in_bytes PROTO((tree));
|
||
extern HOST_WIDE_INT int_size_in_bytes PROTO((tree));
|
||
extern tree size_binop PROTO((enum tree_code, tree, tree));
|
||
extern tree ssize_binop PROTO((enum tree_code, tree, tree));
|
||
extern tree size_int_wide PROTO((unsigned HOST_WIDE_INT,
|
||
unsigned HOST_WIDE_INT, int));
|
||
#define size_int(L) size_int_2 ((L), 0, 0)
|
||
#define bitsize_int(L, H) size_int_2 ((L), (H), 1)
|
||
#define size_int_2(L, H, T) \
|
||
size_int_wide ((unsigned HOST_WIDE_INT) (L), \
|
||
(unsigned HOST_WIDE_INT) (H), (T))
|
||
|
||
extern tree round_up PROTO((tree, int));
|
||
extern tree get_pending_sizes PROTO((void));
|
||
extern void put_pending_sizes PROTO((tree));
|
||
|
||
/* Type for sizes of data-type. */
|
||
|
||
#define BITS_PER_UNIT_LOG \
|
||
((BITS_PER_UNIT > 1) + (BITS_PER_UNIT > 2) + (BITS_PER_UNIT > 4) \
|
||
+ (BITS_PER_UNIT > 8) + (BITS_PER_UNIT > 16) + (BITS_PER_UNIT > 32) \
|
||
+ (BITS_PER_UNIT > 64) + (BITS_PER_UNIT > 128) + (BITS_PER_UNIT > 256))
|
||
|
||
struct sizetype_tab
|
||
{
|
||
tree xsizetype, xbitsizetype;
|
||
tree xssizetype, xusizetype;
|
||
tree xsbitsizetype, xubitsizetype;
|
||
};
|
||
|
||
extern struct sizetype_tab sizetype_tab;
|
||
|
||
#define sizetype sizetype_tab.xsizetype
|
||
#define bitsizetype sizetype_tab.xbitsizetype
|
||
#define ssizetype sizetype_tab.xssizetype
|
||
#define usizetype sizetype_tab.xusizetype
|
||
#define sbitsizetype sizetype_tab.xsbitsizetype
|
||
#define ubitsizetype sizetype_tab.xubitsizetype
|
||
|
||
/* If nonzero, an upper limit on alignment of structure fields, in bits. */
|
||
extern int maximum_field_alignment;
|
||
|
||
/* If non-zero, the alignment of a bitstring or (power-)set value, in bits. */
|
||
extern int set_alignment;
|
||
|
||
/* Concatenate two lists (chains of TREE_LIST nodes) X and Y
|
||
by making the last node in X point to Y.
|
||
Returns X, except if X is 0 returns Y. */
|
||
|
||
extern tree chainon PROTO((tree, tree));
|
||
|
||
/* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN. */
|
||
|
||
extern tree tree_cons PROTO((tree, tree, tree));
|
||
extern tree perm_tree_cons PROTO((tree, tree, tree));
|
||
extern tree temp_tree_cons PROTO((tree, tree, tree));
|
||
extern tree saveable_tree_cons PROTO((tree, tree, tree));
|
||
extern tree decl_tree_cons PROTO((tree, tree, tree));
|
||
extern tree expr_tree_cons PROTO((tree, tree, tree));
|
||
|
||
/* Return the last tree node in a chain. */
|
||
|
||
extern tree tree_last PROTO((tree));
|
||
|
||
/* Reverse the order of elements in a chain, and return the new head. */
|
||
|
||
extern tree nreverse PROTO((tree));
|
||
|
||
/* Returns the length of a chain of nodes
|
||
(number of chain pointers to follow before reaching a null pointer). */
|
||
|
||
extern int list_length PROTO((tree));
|
||
|
||
/* integer_zerop (tree x) is nonzero if X is an integer constant of value 0 */
|
||
|
||
extern int integer_zerop PROTO((tree));
|
||
|
||
/* integer_onep (tree x) is nonzero if X is an integer constant of value 1 */
|
||
|
||
extern int integer_onep PROTO((tree));
|
||
|
||
/* integer_all_onesp (tree x) is nonzero if X is an integer constant
|
||
all of whose significant bits are 1. */
|
||
|
||
extern int integer_all_onesp PROTO((tree));
|
||
|
||
/* integer_pow2p (tree x) is nonzero is X is an integer constant with
|
||
exactly one bit 1. */
|
||
|
||
extern int integer_pow2p PROTO((tree));
|
||
|
||
/* staticp (tree x) is nonzero if X is a reference to data allocated
|
||
at a fixed address in memory. */
|
||
|
||
extern int staticp PROTO((tree));
|
||
|
||
/* Gets an error if argument X is not an lvalue.
|
||
Also returns 1 if X is an lvalue, 0 if not. */
|
||
|
||
extern int lvalue_or_else PROTO((tree, const char *));
|
||
|
||
/* save_expr (EXP) returns an expression equivalent to EXP
|
||
but it can be used multiple times within context CTX
|
||
and only evaluate EXP once. */
|
||
|
||
extern tree save_expr PROTO((tree));
|
||
|
||
/* Returns the index of the first non-tree operand for CODE, or the number
|
||
of operands if all are trees. */
|
||
|
||
extern int first_rtl_op PROTO((enum tree_code));
|
||
|
||
/* unsave_expr (EXP) returns an expression equivalent to EXP but it
|
||
can be used multiple times and will evaluate EXP, in its entirety
|
||
each time. */
|
||
|
||
extern tree unsave_expr PROTO((tree));
|
||
|
||
/* unsave_expr_now (EXP) resets EXP in place, so that it can be
|
||
expanded again. */
|
||
|
||
extern tree unsave_expr_now PROTO((tree));
|
||
|
||
/* Return 1 if EXP contains a PLACEHOLDER_EXPR; i.e., if it represents a size
|
||
or offset that depends on a field within a record.
|
||
|
||
Note that we only allow such expressions within simple arithmetic
|
||
or a COND_EXPR. */
|
||
|
||
extern int contains_placeholder_p PROTO((tree));
|
||
|
||
/* Return 1 if EXP contains any expressions that produce cleanups for an
|
||
outer scope to deal with. Used by fold. */
|
||
|
||
extern int has_cleanups PROTO((tree));
|
||
|
||
/* Given a tree EXP, a FIELD_DECL F, and a replacement value R,
|
||
return a tree with all occurrences of references to F in a
|
||
PLACEHOLDER_EXPR replaced by R. Note that we assume here that EXP
|
||
contains only arithmetic expressions. */
|
||
|
||
extern tree substitute_in_expr PROTO((tree, tree, tree));
|
||
|
||
/* variable_size (EXP) is like save_expr (EXP) except that it
|
||
is for the special case of something that is part of a
|
||
variable size for a data type. It makes special arrangements
|
||
to compute the value at the right time when the data type
|
||
belongs to a function parameter. */
|
||
|
||
extern tree variable_size PROTO((tree));
|
||
|
||
/* stabilize_reference (EXP) returns an reference equivalent to EXP
|
||
but it can be used multiple times
|
||
and only evaluate the subexpressions once. */
|
||
|
||
extern tree stabilize_reference PROTO((tree));
|
||
|
||
/* Subroutine of stabilize_reference; this is called for subtrees of
|
||
references. Any expression with side-effects must be put in a SAVE_EXPR
|
||
to ensure that it is only evaluated once. */
|
||
|
||
extern tree stabilize_reference_1 PROTO((tree));
|
||
|
||
/* Return EXP, stripped of any conversions to wider types
|
||
in such a way that the result of converting to type FOR_TYPE
|
||
is the same as if EXP were converted to FOR_TYPE.
|
||
If FOR_TYPE is 0, it signifies EXP's type. */
|
||
|
||
extern tree get_unwidened PROTO((tree, tree));
|
||
|
||
/* Return OP or a simpler expression for a narrower value
|
||
which can be sign-extended or zero-extended to give back OP.
|
||
Store in *UNSIGNEDP_PTR either 1 if the value should be zero-extended
|
||
or 0 if the value should be sign-extended. */
|
||
|
||
extern tree get_narrower PROTO((tree, int *));
|
||
|
||
/* Given MODE and UNSIGNEDP, return a suitable type-tree
|
||
with that mode.
|
||
The definition of this resides in language-specific code
|
||
as the repertoire of available types may vary. */
|
||
|
||
extern tree type_for_mode PROTO((enum machine_mode, int));
|
||
|
||
/* Given PRECISION and UNSIGNEDP, return a suitable type-tree
|
||
for an integer type with at least that precision.
|
||
The definition of this resides in language-specific code
|
||
as the repertoire of available types may vary. */
|
||
|
||
extern tree type_for_size PROTO((unsigned, int));
|
||
|
||
/* Given an integer type T, return a type like T but unsigned.
|
||
If T is unsigned, the value is T.
|
||
The definition of this resides in language-specific code
|
||
as the repertoire of available types may vary. */
|
||
|
||
extern tree unsigned_type PROTO((tree));
|
||
|
||
/* Given an integer type T, return a type like T but signed.
|
||
If T is signed, the value is T.
|
||
The definition of this resides in language-specific code
|
||
as the repertoire of available types may vary. */
|
||
|
||
extern tree signed_type PROTO((tree));
|
||
|
||
/* This function must be defined in the language-specific files.
|
||
expand_expr calls it to build the cleanup-expression for a TARGET_EXPR.
|
||
This is defined in a language-specific file. */
|
||
|
||
extern tree maybe_build_cleanup PROTO((tree));
|
||
|
||
/* Given an expression EXP that may be a COMPONENT_REF or an ARRAY_REF,
|
||
look for nested component-refs or array-refs at constant positions
|
||
and find the ultimate containing object, which is returned. */
|
||
|
||
extern tree get_inner_reference PROTO((tree, int *, int *, tree *,
|
||
enum machine_mode *, int *,
|
||
int *, int *));
|
||
|
||
/* Return the FUNCTION_DECL which provides this _DECL with its context,
|
||
or zero if none. */
|
||
extern tree decl_function_context PROTO((tree));
|
||
|
||
/* Return the RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE which provides
|
||
this _DECL with its context, or zero if none. */
|
||
extern tree decl_type_context PROTO((tree));
|
||
|
||
/* Given the FUNCTION_DECL for the current function,
|
||
return zero if it is ok for this function to be inline.
|
||
Otherwise return a warning message with a single %s
|
||
for the function's name. */
|
||
|
||
extern const char *function_cannot_inline_p PROTO((tree));
|
||
|
||
/* Return 1 if EXPR is the real constant zero. */
|
||
extern int real_zerop PROTO((tree));
|
||
|
||
/* Declare commonly used variables for tree structure. */
|
||
|
||
/* An integer constant with value 0 */
|
||
extern tree integer_zero_node;
|
||
|
||
/* An integer constant with value 1 */
|
||
extern tree integer_one_node;
|
||
|
||
/* An integer constant with value 0 whose type is sizetype. */
|
||
extern tree size_zero_node;
|
||
|
||
/* An integer constant with value 1 whose type is sizetype. */
|
||
extern tree size_one_node;
|
||
|
||
/* A constant of type pointer-to-int and value 0 */
|
||
extern tree null_pointer_node;
|
||
|
||
/* A node of type ERROR_MARK. */
|
||
extern tree error_mark_node;
|
||
|
||
/* The type node for the void type. */
|
||
extern tree void_type_node;
|
||
|
||
/* The type node for the ordinary (signed) integer type. */
|
||
extern tree integer_type_node;
|
||
|
||
/* The type node for the unsigned integer type. */
|
||
extern tree unsigned_type_node;
|
||
|
||
/* The type node for the ordinary character type. */
|
||
extern tree char_type_node;
|
||
|
||
/* Points to the name of the input file from which the current input
|
||
being parsed originally came (before it went into cpp). */
|
||
extern char *input_filename;
|
||
|
||
/* Current line number in input file. */
|
||
extern int lineno;
|
||
|
||
/* Nonzero for -pedantic switch: warn about anything
|
||
that standard C forbids. */
|
||
extern int pedantic;
|
||
|
||
/* Nonzero means lvalues are limited to those valid in pedantic ANSI C.
|
||
Zero means allow extended lvalues. */
|
||
|
||
extern int pedantic_lvalues;
|
||
|
||
/* Nonzero means can safely call expand_expr now;
|
||
otherwise layout_type puts variable sizes onto `pending_sizes' instead. */
|
||
|
||
extern int immediate_size_expand;
|
||
|
||
/* Points to the FUNCTION_DECL of the function whose body we are reading. */
|
||
|
||
extern tree current_function_decl;
|
||
|
||
/* Nonzero if function being compiled can call setjmp. */
|
||
|
||
extern int current_function_calls_setjmp;
|
||
|
||
/* Nonzero if function being compiled can call longjmp. */
|
||
|
||
extern int current_function_calls_longjmp;
|
||
|
||
/* Nonzero means all ..._TYPE nodes should be allocated permanently. */
|
||
|
||
extern int all_types_permanent;
|
||
|
||
/* Pointer to function to compute the name to use to print a declaration.
|
||
DECL is the declaration in question.
|
||
VERBOSITY determines what information will be printed:
|
||
0: DECL_NAME, demangled as necessary.
|
||
1: and scope information.
|
||
2: and any other information that might be interesting, such as function
|
||
parameter types in C++. */
|
||
|
||
extern char *(*decl_printable_name) PROTO((tree, int));
|
||
|
||
/* Pointer to function to finish handling an incomplete decl at the
|
||
end of compilation. */
|
||
|
||
extern void (*incomplete_decl_finalize_hook) PROTO((tree));
|
||
|
||
/* In tree.c */
|
||
extern char *perm_calloc PROTO((int, long));
|
||
extern tree get_file_function_name PROTO((int));
|
||
extern tree get_file_function_name_long PROTO((const char *));
|
||
extern tree get_set_constructor_bits PROTO((tree, char *, int));
|
||
extern tree get_set_constructor_bytes PROTO((tree,
|
||
unsigned char *, int));
|
||
extern int get_alias_set PROTO((tree));
|
||
extern int new_alias_set PROTO((void));
|
||
extern int (*lang_get_alias_set) PROTO((tree));
|
||
|
||
/* In stmt.c */
|
||
|
||
extern void expand_fixups PROTO((struct rtx_def *));
|
||
extern tree expand_start_stmt_expr PROTO((void));
|
||
extern tree expand_end_stmt_expr PROTO((tree));
|
||
extern void expand_expr_stmt PROTO((tree));
|
||
extern int warn_if_unused_value PROTO((tree));
|
||
extern void expand_decl_init PROTO((tree));
|
||
extern void clear_last_expr PROTO((void));
|
||
extern void expand_label PROTO((tree));
|
||
extern void expand_goto PROTO((tree));
|
||
extern void expand_asm PROTO((tree));
|
||
extern void expand_start_cond PROTO((tree, int));
|
||
extern void expand_end_cond PROTO((void));
|
||
extern void expand_start_else PROTO((void));
|
||
extern void expand_start_elseif PROTO((tree));
|
||
extern struct nesting *expand_start_loop PROTO((int));
|
||
extern struct nesting *expand_start_loop_continue_elsewhere PROTO((int));
|
||
extern void expand_loop_continue_here PROTO((void));
|
||
extern void expand_end_loop PROTO((void));
|
||
extern int expand_continue_loop PROTO((struct nesting *));
|
||
extern int expand_exit_loop PROTO((struct nesting *));
|
||
extern int expand_exit_loop_if_false PROTO((struct nesting *,
|
||
tree));
|
||
extern int expand_exit_something PROTO((void));
|
||
|
||
extern void expand_null_return PROTO((void));
|
||
extern void expand_return PROTO((tree));
|
||
extern int optimize_tail_recursion PROTO((tree, struct rtx_def *));
|
||
extern void expand_start_bindings PROTO((int));
|
||
extern void expand_end_bindings PROTO((tree, int, int));
|
||
extern void start_cleanup_deferral PROTO((void));
|
||
extern void end_cleanup_deferral PROTO((void));
|
||
extern void mark_block_as_eh_region PROTO((void));
|
||
extern void mark_block_as_not_eh_region PROTO((void));
|
||
extern int is_eh_region PROTO((void));
|
||
extern int conditional_context PROTO((void));
|
||
extern tree last_cleanup_this_contour PROTO((void));
|
||
extern int expand_dhc_cleanup PROTO((tree));
|
||
extern int expand_dcc_cleanup PROTO((tree));
|
||
extern void expand_start_case PROTO((int, tree, tree,
|
||
const char *));
|
||
extern void expand_end_case PROTO((tree));
|
||
extern int pushcase PROTO((tree,
|
||
tree (*) (tree, tree),
|
||
tree, tree *));
|
||
extern int pushcase_range PROTO((tree, tree,
|
||
tree (*) (tree, tree),
|
||
tree, tree *));
|
||
extern void using_eh_for_cleanups PROTO((void));
|
||
extern int stmt_loop_nest_empty PROTO((void));
|
||
|
||
/* In fold-const.c */
|
||
|
||
/* Fold constants as much as possible in an expression.
|
||
Returns the simplified expression.
|
||
Acts only on the top level of the expression;
|
||
if the argument itself cannot be simplified, its
|
||
subexpressions are not changed. */
|
||
|
||
extern tree fold PROTO((tree));
|
||
|
||
extern int force_fit_type PROTO((tree, int));
|
||
extern int add_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT *, HOST_WIDE_INT *));
|
||
extern int neg_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT *, HOST_WIDE_INT *));
|
||
extern int mul_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT *, HOST_WIDE_INT *));
|
||
extern void lshift_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, int, HOST_WIDE_INT *,
|
||
HOST_WIDE_INT *, int));
|
||
extern void rshift_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, int,
|
||
HOST_WIDE_INT *, HOST_WIDE_INT *, int));
|
||
extern void lrotate_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, int, HOST_WIDE_INT *,
|
||
HOST_WIDE_INT *));
|
||
extern void rrotate_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, int, HOST_WIDE_INT *,
|
||
HOST_WIDE_INT *));
|
||
extern int operand_equal_p PROTO((tree, tree, int));
|
||
extern tree invert_truthvalue PROTO((tree));
|
||
|
||
/* Interface of the DWARF2 unwind info support. */
|
||
|
||
/* Decide whether we want to emit frame unwind information for the current
|
||
translation unit. */
|
||
|
||
extern int dwarf2out_do_frame PROTO((void));
|
||
|
||
/* Generate a new label for the CFI info to refer to. */
|
||
|
||
extern char *dwarf2out_cfi_label PROTO((void));
|
||
|
||
/* Entry point to update the canonical frame address (CFA). */
|
||
|
||
extern void dwarf2out_def_cfa PROTO((char *, unsigned, long));
|
||
|
||
/* Add the CFI for saving a register window. */
|
||
|
||
extern void dwarf2out_window_save PROTO((char *));
|
||
|
||
/* Add a CFI to update the running total of the size of arguments pushed
|
||
onto the stack. */
|
||
|
||
extern void dwarf2out_args_size PROTO((char *, long));
|
||
|
||
/* Entry point for saving a register to the stack. */
|
||
|
||
extern void dwarf2out_reg_save PROTO((char *, unsigned, long));
|
||
|
||
/* Entry point for saving the return address in the stack. */
|
||
|
||
extern void dwarf2out_return_save PROTO((char *, long));
|
||
|
||
/* Entry point for saving the return address in a register. */
|
||
|
||
extern void dwarf2out_return_reg PROTO((char *, unsigned));
|
||
|
||
/* Output a marker (i.e. a label) for the beginning of a function, before
|
||
the prologue. */
|
||
|
||
extern void dwarf2out_begin_prologue PROTO((void));
|
||
|
||
/* Output a marker (i.e. a label) for the absolute end of the generated
|
||
code for a function definition. */
|
||
|
||
extern void dwarf2out_end_epilogue PROTO((void));
|
||
|
||
/* The language front-end must define these functions. */
|
||
|
||
/* Function of no arguments for initializing options. */
|
||
extern void lang_init_options PROTO((void));
|
||
|
||
/* Function of no arguments for initializing lexical scanning. */
|
||
extern void init_lex PROTO((void));
|
||
/* Function of no arguments for initializing the symbol table. */
|
||
extern void init_decl_processing PROTO((void));
|
||
|
||
/* Functions called with no arguments at the beginning and end or processing
|
||
the input source file. */
|
||
extern void lang_init PROTO((void));
|
||
extern void lang_finish PROTO((void));
|
||
|
||
/* Function to identify which front-end produced the output file. */
|
||
extern char *lang_identify PROTO((void));
|
||
|
||
/* Function to replace the DECL_LANG_SPECIFIC field of a DECL with a copy. */
|
||
extern void copy_lang_decl PROTO((tree));
|
||
|
||
/* Function called with no arguments to parse and compile the input. */
|
||
extern int yyparse PROTO((void));
|
||
/* Function called with option as argument
|
||
to decode options starting with -f or -W or +.
|
||
It should return nonzero if it handles the option. */
|
||
extern int lang_decode_option PROTO((int, char **));
|
||
|
||
/* Functions for processing symbol declarations. */
|
||
/* Function to enter a new lexical scope.
|
||
Takes one argument: always zero when called from outside the front end. */
|
||
extern void pushlevel PROTO((int));
|
||
/* Function to exit a lexical scope. It returns a BINDING for that scope.
|
||
Takes three arguments:
|
||
KEEP -- nonzero if there were declarations in this scope.
|
||
REVERSE -- reverse the order of decls before returning them.
|
||
FUNCTIONBODY -- nonzero if this level is the body of a function. */
|
||
extern tree poplevel PROTO((int, int, int));
|
||
/* Set the BLOCK node for the current scope level. */
|
||
extern void set_block PROTO((tree));
|
||
/* Function to add a decl to the current scope level.
|
||
Takes one argument, a decl to add.
|
||
Returns that decl, or, if the same symbol is already declared, may
|
||
return a different decl for that name. */
|
||
extern tree pushdecl PROTO((tree));
|
||
/* Function to return the chain of decls so far in the current scope level. */
|
||
extern tree getdecls PROTO((void));
|
||
/* Function to return the chain of structure tags in the current scope level. */
|
||
extern tree gettags PROTO((void));
|
||
|
||
extern tree build_range_type PROTO((tree, tree, tree));
|
||
|
||
/* Call when starting to parse a declaration:
|
||
make expressions in the declaration last the length of the function.
|
||
Returns an argument that should be passed to resume_momentary later. */
|
||
extern int suspend_momentary PROTO((void));
|
||
|
||
extern int allocation_temporary_p PROTO((void));
|
||
|
||
/* Call when finished parsing a declaration:
|
||
restore the treatment of node-allocation that was
|
||
in effect before the suspension.
|
||
YES should be the value previously returned by suspend_momentary. */
|
||
extern void resume_momentary PROTO((int));
|
||
|
||
/* Called after finishing a record, union or enumeral type. */
|
||
extern void rest_of_type_compilation PROTO((tree, int));
|
||
|
||
/* Save the current set of obstacks, but don't change them. */
|
||
extern void push_obstacks_nochange PROTO((void));
|
||
|
||
extern void permanent_allocation PROTO((int));
|
||
|
||
extern void push_momentary PROTO((void));
|
||
|
||
extern void clear_momentary PROTO((void));
|
||
|
||
extern void pop_momentary PROTO((void));
|
||
|
||
extern void end_temporary_allocation PROTO((void));
|
||
|
||
/* Pop the obstack selection stack. */
|
||
extern void pop_obstacks PROTO((void));
|
||
|
||
/* In tree.c */
|
||
extern int really_constant_p PROTO ((tree));
|
||
extern void push_obstacks PROTO ((struct obstack *,
|
||
struct obstack *));
|
||
extern void pop_momentary_nofree PROTO ((void));
|
||
extern void preserve_momentary PROTO ((void));
|
||
extern void saveable_allocation PROTO ((void));
|
||
extern void temporary_allocation PROTO ((void));
|
||
extern void resume_temporary_allocation PROTO ((void));
|
||
extern tree get_file_function_name PROTO ((int));
|
||
extern void set_identifier_size PROTO ((int));
|
||
extern int int_fits_type_p PROTO ((tree, tree));
|
||
extern int tree_log2 PROTO ((tree));
|
||
extern void preserve_initializer PROTO ((void));
|
||
extern void preserve_data PROTO ((void));
|
||
extern int object_permanent_p PROTO ((tree));
|
||
extern int type_precision PROTO ((tree));
|
||
extern int simple_cst_equal PROTO ((tree, tree));
|
||
extern int type_list_equal PROTO ((tree, tree));
|
||
extern int chain_member PROTO ((tree, tree));
|
||
extern int chain_member_purpose PROTO ((tree, tree));
|
||
extern int chain_member_value PROTO ((tree, tree));
|
||
extern tree listify PROTO ((tree));
|
||
extern tree type_hash_lookup PROTO ((int, tree));
|
||
extern void type_hash_add PROTO ((int, tree));
|
||
extern int type_hash_list PROTO ((tree));
|
||
extern int simple_cst_list_equal PROTO ((tree, tree));
|
||
extern void debug_obstack PROTO ((char *));
|
||
extern void rtl_in_current_obstack PROTO ((void));
|
||
extern void rtl_in_saveable_obstack PROTO ((void));
|
||
extern void init_tree_codes PROTO ((void));
|
||
extern void dump_tree_statistics PROTO ((void));
|
||
extern void print_obstack_statistics PROTO ((const char *,
|
||
struct obstack *));
|
||
#ifdef BUFSIZ
|
||
extern void print_obstack_name PROTO ((char *, FILE *, const char *));
|
||
#endif
|
||
extern void expand_function_end PROTO ((char *, int, int));
|
||
extern void expand_function_start PROTO ((tree, int));
|
||
extern int real_onep PROTO ((tree));
|
||
extern int real_twop PROTO ((tree));
|
||
extern void start_identifier_warnings PROTO ((void));
|
||
extern void gcc_obstack_init PROTO ((struct obstack *));
|
||
extern void init_obstacks PROTO ((void));
|
||
extern void obfree PROTO ((char *));
|
||
extern tree tree_check PROTO ((tree, enum tree_code,
|
||
const char *, int, int));
|
||
extern tree tree_class_check PROTO ((tree, char, const char *,
|
||
int, int));
|
||
extern tree expr_check PROTO ((tree, int, const char *,
|
||
int, int));
|
||
|
||
/* In function.c */
|
||
extern void setjmp_protect_args PROTO ((void));
|
||
extern void setjmp_protect PROTO ((tree));
|
||
extern void expand_main_function PROTO ((void));
|
||
extern void mark_varargs PROTO ((void));
|
||
extern void init_function_start PROTO ((tree, char *, int));
|
||
extern void assign_parms PROTO ((tree, int));
|
||
extern void put_var_into_stack PROTO ((tree));
|
||
extern void uninitialized_vars_warning PROTO ((tree));
|
||
extern void setjmp_args_warning PROTO ((void));
|
||
extern void mark_all_temps_used PROTO ((void));
|
||
extern void init_temp_slots PROTO ((void));
|
||
extern void combine_temp_slots PROTO ((void));
|
||
extern void free_temp_slots PROTO ((void));
|
||
extern void pop_temp_slots PROTO ((void));
|
||
extern void push_temp_slots PROTO ((void));
|
||
extern void preserve_temp_slots PROTO ((struct rtx_def *));
|
||
extern int aggregate_value_p PROTO ((tree));
|
||
extern tree reorder_blocks PROTO ((tree *, tree,
|
||
struct rtx_def *));
|
||
extern void free_temps_for_rtl_expr PROTO ((tree));
|
||
extern void instantiate_virtual_regs PROTO ((tree, struct rtx_def *));
|
||
extern int max_parm_reg_num PROTO ((void));
|
||
extern void push_function_context PROTO ((void));
|
||
extern void pop_function_context PROTO ((void));
|
||
extern void push_function_context_to PROTO ((tree));
|
||
extern void pop_function_context_from PROTO ((tree));
|
||
|
||
/* In print-rtl.c */
|
||
#ifdef BUFSIZ
|
||
extern void print_rtl PROTO ((FILE *, struct rtx_def *));
|
||
#endif
|
||
|
||
/* In print-tree.c */
|
||
extern void debug_tree PROTO ((tree));
|
||
#ifdef BUFSIZ
|
||
extern void print_node PROTO ((FILE *, const char *, tree, int));
|
||
extern void print_node_brief PROTO ((FILE *, const char *, tree, int));
|
||
extern void indent_to PROTO ((FILE *, int));
|
||
#endif
|
||
|
||
/* In expr.c */
|
||
extern void emit_queue PROTO ((void));
|
||
extern int apply_args_register_offset PROTO ((int));
|
||
extern struct rtx_def *expand_builtin_return_addr
|
||
PROTO ((enum built_in_function, int, struct rtx_def *));
|
||
extern void do_pending_stack_adjust PROTO ((void));
|
||
extern struct rtx_def *expand_assignment PROTO ((tree, tree, int, int));
|
||
extern struct rtx_def *store_expr PROTO ((tree, struct rtx_def *,
|
||
int));
|
||
extern void check_max_integer_computation_mode PROTO ((tree));
|
||
|
||
/* In emit-rtl.c */
|
||
extern void start_sequence_for_rtl_expr PROTO ((tree));
|
||
extern struct rtx_def *emit_line_note_after PROTO ((char *, int,
|
||
struct rtx_def *));
|
||
extern struct rtx_def *emit_line_note PROTO ((char *, int));
|
||
extern struct rtx_def *emit_line_note_force PROTO ((char *, int));
|
||
|
||
/* In c-typeck.c */
|
||
extern int mark_addressable PROTO ((tree));
|
||
extern void incomplete_type_error PROTO ((tree, tree));
|
||
|
||
/* In c-lang.c */
|
||
extern void print_lang_statistics PROTO ((void));
|
||
|
||
/* In c-common.c */
|
||
extern tree truthvalue_conversion PROTO ((tree));
|
||
extern int min_precision PROTO ((tree, int));
|
||
extern void split_specs_attrs PROTO ((tree, tree *, tree *));
|
||
|
||
/* In c-decl.c */
|
||
#ifdef BUFSIZ
|
||
extern void print_lang_decl PROTO ((FILE *, tree, int));
|
||
extern void print_lang_type PROTO ((FILE *, tree, int));
|
||
extern void print_lang_identifier PROTO ((FILE *, tree, int));
|
||
#endif
|
||
extern int global_bindings_p PROTO ((void));
|
||
extern void insert_block PROTO ((tree));
|
||
|
||
/* In integrate.c */
|
||
extern void save_for_inline_nocopy PROTO ((tree));
|
||
extern void save_for_inline_copying PROTO ((tree));
|
||
extern void set_decl_abstract_flags PROTO ((tree, int));
|
||
extern void output_inline_function PROTO ((tree));
|
||
|
||
/* In c-lex.c */
|
||
extern void set_yydebug PROTO ((int));
|
||
|
||
/* In stor-layout.c */
|
||
extern void fixup_signed_type PROTO ((tree));
|
||
|
||
/* varasm.c */
|
||
extern void make_decl_rtl PROTO ((tree, const char *, int));
|
||
extern void make_decl_one_only PROTO ((tree));
|
||
extern int supports_one_only PROTO ((void));
|
||
extern void variable_section PROTO ((tree, int));
|
||
|
||
/* In fold-const.c */
|
||
extern int div_and_round_double PROTO ((enum tree_code, int,
|
||
HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT, HOST_WIDE_INT,
|
||
HOST_WIDE_INT *,
|
||
HOST_WIDE_INT *,
|
||
HOST_WIDE_INT *,
|
||
HOST_WIDE_INT *));
|
||
|
||
/* In stmt.c */
|
||
extern void emit_nop PROTO ((void));
|
||
extern void expand_computed_goto PROTO ((tree));
|
||
extern struct rtx_def *label_rtx PROTO ((tree));
|
||
extern void expand_asm_operands PROTO ((tree, tree, tree, tree, int,
|
||
char *, int));
|
||
extern int any_pending_cleanups PROTO ((int));
|
||
extern void init_stmt PROTO ((void));
|
||
extern void init_stmt_for_function PROTO ((void));
|
||
extern void remember_end_note PROTO ((tree));
|
||
extern int drop_through_at_end_p PROTO ((void));
|
||
extern void expand_start_target_temps PROTO ((void));
|
||
extern void expand_end_target_temps PROTO ((void));
|
||
extern void expand_elseif PROTO ((tree));
|
||
extern void expand_decl PROTO ((tree));
|
||
extern int expand_decl_cleanup PROTO ((tree, tree));
|
||
extern void expand_anon_union_decl PROTO ((tree, tree, tree));
|
||
extern void move_cleanups_up PROTO ((void));
|
||
extern void expand_start_case_dummy PROTO ((void));
|
||
extern void expand_end_case_dummy PROTO ((void));
|
||
extern tree case_index_expr_type PROTO ((void));
|
||
extern HOST_WIDE_INT all_cases_count PROTO ((tree, int *));
|
||
extern void check_for_full_enumeration_handling PROTO ((tree));
|
||
extern void declare_nonlocal_label PROTO ((tree));
|
||
#ifdef BUFSIZ
|
||
extern void lang_print_xnode PROTO ((FILE *, tree, int));
|
||
#endif
|
||
|
||
|
||
/* If KIND=='I', return a suitable global initializer (constructor) name.
|
||
If KIND=='D', return a suitable global clean-up (destructor) name. */
|
||
extern tree get_file_function_name PROTO((int));
|
||
|
||
/* Interface of the DWARF2 unwind info support. */
|
||
|
||
/* Decide whether we want to emit frame unwind information for the current
|
||
translation unit. */
|
||
|
||
extern int dwarf2out_do_frame PROTO((void));
|
||
|
||
/* Generate a new label for the CFI info to refer to. */
|
||
|
||
extern char *dwarf2out_cfi_label PROTO((void));
|
||
|
||
/* Entry point to update the canonical frame address (CFA). */
|
||
|
||
extern void dwarf2out_def_cfa PROTO((char *, unsigned, long));
|
||
|
||
/* Add the CFI for saving a register window. */
|
||
|
||
extern void dwarf2out_window_save PROTO((char *));
|
||
|
||
/* Add a CFI to update the running total of the size of arguments pushed
|
||
onto the stack. */
|
||
|
||
extern void dwarf2out_args_size PROTO((char *, long));
|
||
|
||
/* Entry point for saving a register to the stack. */
|
||
|
||
extern void dwarf2out_reg_save PROTO((char *, unsigned, long));
|
||
|
||
/* Entry point for saving the return address in the stack. */
|
||
|
||
extern void dwarf2out_return_save PROTO((char *, long));
|
||
|
||
/* Entry point for saving the return address in a register. */
|
||
|
||
extern void dwarf2out_return_reg PROTO((char *, unsigned));
|
||
|
||
/* Output a marker (i.e. a label) for the beginning of a function, before
|
||
the prologue. */
|
||
|
||
extern void dwarf2out_begin_prologue PROTO((void));
|
||
|
||
/* Output a marker (i.e. a label) for the absolute end of the generated
|
||
code for a function definition. */
|
||
|
||
extern void dwarf2out_end_epilogue PROTO((void));
|