diff options
| author | meibf <meibf@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-09 14:44:03 +0000 |
|---|---|---|
| committer | meibf <meibf@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-09 14:44:03 +0000 |
| commit | a84256aaf1a2f9bd1f4b29935232a52b11a068b6 (patch) | |
| tree | e1019cb9c50fe10a946e21114e247d48c6ccc78a /gcc/rtl.h | |
| parent | 43f0f599fa1a8068f992e360c96194a12a3390ca (diff) | |
| download | gcc-a84256aaf1a2f9bd1f4b29935232a52b11a068b6.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163037 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/rtl.h b/gcc/rtl.h index 710e3caa144..bb873584057 100644 --- a/gcc/rtl.h +++ b/gcc/rtl.h @@ -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); |