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| author | Richard Guenther <rguenther@suse.de> | 2010-07-04 11:38:01 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-07-04 11:38:01 +0000 |
| commit | ef2a9157f4bbd2b7c5cd93328732a94970234173 (patch) | |
| tree | f89d465d2461fc26ddd1cceed9cd618240763c10 /gcc | |
| parent | 4fa4929ea861d9d61f9121f6fe1023b1edaaa538 (diff) | |
| download | gcc-ef2a9157f4bbd2b7c5cd93328732a94970234173.zip gcc-ef2a9157f4bbd2b7c5cd93328732a94970234173.tar.gz gcc-ef2a9157f4bbd2b7c5cd93328732a94970234173.tar.bz2 | |
2010-07-4 Richard Guenther <rguenther@suse.de>
* tree-ssa-sccvn.c (vn_reference_lookup_3): Fix last commit.
From-SVN: r161799
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 8 |
2 files changed, 8 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fb54865..b7b6b00 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2010-07-04 Richard Guenther <rguenther@suse.de> + * tree-ssa-sccvn.c (vn_reference_lookup_3): Fix last commit. + +2010-07-04 Richard Guenther <rguenther@suse.de> + PR tree-optimization/44656 * tree-ssa-sccvn.c (vn_reference_lookup_3): Try disambiguation again after value-replacing in the defintions lhs. diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index cca1941..b121309 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1218,12 +1218,12 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *vr_) tree lhs = gimple_assign_lhs (def_stmt); ao_ref ref1; VEC (vn_reference_op_s, heap) *operands = NULL; - bool res; + bool res = true; copy_reference_ops_from_ref (lhs, &operands); operands = valueize_refs (operands); - ao_ref_init_from_vn_reference (&ref1, get_alias_set (lhs), - TREE_TYPE (lhs), operands); - res = refs_may_alias_p_1 (ref, &ref1, true); + if (ao_ref_init_from_vn_reference (&ref1, get_alias_set (lhs), + TREE_TYPE (lhs), operands)) + res = refs_may_alias_p_1 (ref, &ref1, true); VEC_free (vn_reference_op_s, heap, operands); if (!res) return NULL; |