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| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2004-09-01 23:07:52 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 2004-09-01 19:07:52 -0400 |
| commit | ba2e294dfbbb6790b8f26e654b487a6aae94a1c7 (patch) | |
| tree | 9d30a8161de26fc81a5d2632d6f7b4eeab8e5446 /gcc/tree-tailcall.c | |
| parent | 73022c2a43bfdf0e56546b3cb092787fd203ee02 (diff) | |
| download | gcc-ba2e294dfbbb6790b8f26e654b487a6aae94a1c7.zip gcc-ba2e294dfbbb6790b8f26e654b487a6aae94a1c7.tar.gz gcc-ba2e294dfbbb6790b8f26e654b487a6aae94a1c7.tar.bz2 | |
tree-tailcall.c (find_tail_calls): Also fail is statement has volatile operands.
* tree-tailcall.c (find_tail_calls): Also fail is statement has
volatile operands.
From-SVN: r86938
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 401a399..8c1aabc 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; } |