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| author | Bingfeng Mei <bmei@broadcom.com> | 2010-08-09 14:44:03 +0000 |
|---|---|---|
| committer | Bingfeng Mei <meibf@gcc.gnu.org> | 2010-08-09 14:44:03 +0000 |
| commit | c6ea834c83126f1a249525715f677ccf9969c30b (patch) | |
| tree | e1019cb9c50fe10a946e21114e247d48c6ccc78a /gcc/rtl.h | |
| parent | 72ac05b04e2baf2ff9eebd42e6ff5f22fd3b1546 (diff) | |
| download | gcc-c6ea834c83126f1a249525715f677ccf9969c30b.zip gcc-c6ea834c83126f1a249525715f677ccf9969c30b.tar.gz gcc-c6ea834c83126f1a249525715f677ccf9969c30b.tar.bz2 | |
ddg.c (walk_mems_2): Moved from alias.c, use may_alias_p instead of alias_sets_conflict_p.
2010-08-09 Bingfeng Mei <bmei@broadcom.com>
* ddg.c (walk_mems_2): Moved from alias.c, use may_alias_p instead of
alias_sets_conflict_p.
(walk_mems_1): Moved from alias.c.
(insns_may_alias_p): New function, originally insn_alias_sets_conflict_p
in alias.c.
(add_inter_loop_mem_dep): Use insns_may_alias_p now.
* cse.c (cse_insn): New argument in calling nonoverlapping_memrefs_p.
* alias.c (walk_mems_2): Moved to ddg.c.
(walk_mems_1): Ditto.
(insn_alias_sets_conflict_p): Renamed to insns_may_alias_p and moved
to ddg.c.
(nonoverlapping_memrefs_p): Add flag to guard offset-based memory
disambiguation.
*(may_alias_p): New function to check whether two memory expression
may alias or not. Currently used in buidling inter-iteration memory
dependence.
*alias.h (nonoverlapping_memrefs_p): New flag as third argument.
(insn_alias_sets_conflict_p): Removed
*rtl.h (may_alias_p): New function prototype.
From-SVN: r163037
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -2424,6 +2424,7 @@ extern int canon_true_dependence (const_rtx, enum machine_mode, rtx, const_rtx, extern int read_dependence (const_rtx, const_rtx); extern int anti_dependence (const_rtx, const_rtx); extern int output_dependence (const_rtx, const_rtx); +extern int may_alias_p (const_rtx, const_rtx); extern void init_alias_target (void); extern void init_alias_analysis (void); extern void end_alias_analysis (void); |