diff options
| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-01 23:07:52 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-01 23:07:52 +0000 |
| commit | 147b9f521ac0f57b49494b03d75b93a243dc24f1 (patch) | |
| tree | 9d30a8161de26fc81a5d2632d6f7b4eeab8e5446 /gcc/tree-tailcall.c | |
| parent | 55c151dc6355959975cd6654d7f2f8b80e0372ed (diff) | |
| download | gcc-147b9f521ac0f57b49494b03d75b93a243dc24f1.tar.gz | |
* tree-tailcall.c (find_tail_calls): Also fail is statement has
volatile operands.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@86938 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-tailcall.c')
| -rw-r--r-- | gcc/tree-tailcall.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c index 401a3991468..8c1aabcabb5 100644 --- a/gcc/tree-tailcall.c +++ b/gcc/tree-tailcall.c @@ -395,11 +395,12 @@ find_tail_calls (basic_block bb, struct tailcall **ret) if (TREE_CODE (call) == CALL_EXPR) break; - /* If the statement has virtual operands, fail. */ + /* If the statement has virtual or volatile operands, fail. */ ann = stmt_ann (stmt); if (NUM_V_MAY_DEFS (V_MAY_DEF_OPS (ann)) || NUM_V_MUST_DEFS (V_MUST_DEF_OPS (ann)) - || NUM_VUSES (VUSE_OPS (ann))) + || NUM_VUSES (VUSE_OPS (ann)) + || ann->has_volatile_ops) return; } |