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| author | Joern Rennecke <joern.rennecke@embecosm.com> | 2013-06-16 14:59:41 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2013-06-16 15:59:41 +0100 |
| commit | 393f9fedf35f006eb9c8c5ca185ae99aa2a0cce6 (patch) | |
| tree | 287eb151099ae1ad14535d80694e42ba6df3f9d0 /gcc/cse.c | |
| parent | b259d352ca69bed852c775145cdcd5d48bb45d1e (diff) | |
| download | gcc-393f9fedf35f006eb9c8c5ca185ae99aa2a0cce6.zip gcc-393f9fedf35f006eb9c8c5ca185ae99aa2a0cce6.tar.gz gcc-393f9fedf35f006eb9c8c5ca185ae99aa2a0cce6.tar.bz2 | |
re PR rtl-optimization/57425 (RTL alias analysis unprepared to handle stack slot sharing)
gcc:
PR rtl-optimization/57425
PR rtl-optimization/57569
* alias.c (write_dependence_p): Add new parameters mem_size,
canon_mem_addr and mem_canonicalized. Change type of writep to bool.
Changed all callers.
(canon_anti_dependence): New function.
* cse.c (check_dependence): Use canon_anti_dependence.
* cselib.c (cselib_invalidate_mem): Likewise.
* rtl.h (canon_anti_dependence): Declare.
gcc/testsuite:
PR rtl-optimization/57425
PR rtl-optimization/57569
* gcc.dg/torture/pr57425-1.c, gcc.dg/torture/pr57425-2.c: New files.
* gcc.dg/torture/pr57425-3.c, gcc.dg/torture/pr57569.c: Likewise.
Index: alias.c
===================================================================
--- alias.c (revision 200126)
From-SVN: r200133
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -1824,7 +1824,7 @@ flush_hash_table (void) } } -/* Function called for each rtx to check whether true dependence exist. */ +/* Function called for each rtx to check whether an anti dependence exist. */ struct check_dependence_data { enum machine_mode mode; @@ -1837,7 +1837,7 @@ check_dependence (rtx *x, void *data) { struct check_dependence_data *d = (struct check_dependence_data *) data; if (*x && MEM_P (*x)) - return canon_true_dependence (d->exp, d->mode, d->addr, *x, NULL_RTX); + return canon_anti_dependence (d->exp, d->mode, d->addr, *x); else return 0; } |