mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
/* IPA handling of references.
|
|
Copyright (C) 2004-2005 Free Software Foundation, Inc.
|
|
Contributed by Kenneth Zadeck <zadeck@naturalbridge.com>
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
version.
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GCC; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301, USA. */
|
|
|
|
#ifndef GCC_IPA_REFERENCE_H
|
|
#define GCC_IPA_REFERENCE_H
|
|
#include "bitmap.h"
|
|
#include "tree.h"
|
|
|
|
/* The static variables defined within the compilation unit that are
|
|
loaded or stored directly by function that owns this structure. */
|
|
|
|
struct ipa_reference_local_vars_info_d
|
|
{
|
|
bitmap statics_read;
|
|
bitmap statics_written;
|
|
|
|
/* Set when this function calls another function external to the
|
|
compilation unit or if the function has a asm clobber of memory.
|
|
In general, such calls are modeled as reading and writing all
|
|
variables (both bits on) but sometime there are attributes on the
|
|
called function so we can do better. */
|
|
bool calls_read_all;
|
|
bool calls_write_all;
|
|
};
|
|
|
|
struct ipa_reference_global_vars_info_d
|
|
{
|
|
bitmap statics_read;
|
|
bitmap statics_written;
|
|
bitmap statics_not_read;
|
|
bitmap statics_not_written;
|
|
};
|
|
|
|
/* Statics that are read and written by some set of functions. The
|
|
local ones are based on the loads and stores local to the function.
|
|
The global ones are based on the local info as well as the
|
|
transitive closure of the functions that are called. The
|
|
structures are separated to allow the global structures to be
|
|
shared between several functions since every function within a
|
|
strongly connected component will have the same information. This
|
|
sharing saves both time and space in the computation of the vectors
|
|
as well as their translation from decl_uid form to ann_uid
|
|
form. */
|
|
|
|
typedef struct ipa_reference_local_vars_info_d *ipa_reference_local_vars_info_t;
|
|
typedef struct ipa_reference_global_vars_info_d *ipa_reference_global_vars_info_t;
|
|
|
|
struct ipa_reference_vars_info_d
|
|
{
|
|
ipa_reference_local_vars_info_t local;
|
|
ipa_reference_global_vars_info_t global;
|
|
};
|
|
|
|
typedef struct ipa_reference_vars_info_d *ipa_reference_vars_info_t;
|
|
|
|
/* In ipa-reference.c */
|
|
bitmap ipa_reference_get_read_local (tree fn);
|
|
bitmap ipa_reference_get_written_local (tree fn);
|
|
bitmap ipa_reference_get_read_global (tree fn);
|
|
bitmap ipa_reference_get_written_global (tree fn);
|
|
bitmap ipa_reference_get_not_read_global (tree fn);
|
|
bitmap ipa_reference_get_not_written_global (tree fn);
|
|
|
|
#endif /* GCC_IPA_REFERENCE_H */
|
|
|