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authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2007-09-08 15:09:25 +0000
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2007-09-08 15:09:25 +0000
commita3ef3b05d98b8d4d4903700b214f81c76a54ab8c (patch)
tree259baa0e14622f432ae3b12535a54efa40aabb63 /gcc/tree-tailcall.c
parent4f34fbd65fe7bcc36de45cf349c8ead0b93b7638 (diff)
downloadgcc-a3ef3b05d98b8d4d4903700b214f81c76a54ab8c.tar.gz
2007-09-08 Richard Guenther <rguenther@suse.de>
* tree-tailcall.c (find_tail_calls): If we don't have aliases computed check stmt_ann->references_memory instead of counting virtual operands. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128276 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-tailcall.c')
-rw-r--r--gcc/tree-tailcall.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c
index 8651b60fc0d..bd3da886668 100644
--- a/gcc/tree-tailcall.c
+++ b/gcc/tree-tailcall.c
@@ -414,7 +414,8 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
/* If the statement has virtual or volatile operands, fail. */
ann = stmt_ann (stmt);
if (!ZERO_SSA_OPERANDS (stmt, (SSA_OP_VUSE | SSA_OP_VIRTUAL_DEFS))
- || ann->has_volatile_ops)
+ || ann->has_volatile_ops
+ || (!gimple_aliases_computed_p (cfun) && ann->references_memory))
return;
}