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| author | Jakub Jelinek <jakub@redhat.com> | 2003-06-24 19:29:09 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2003-06-24 19:29:09 +0200 |
| commit | 946137a0d6d4bb6d325491f59e0043d67b345377 (patch) | |
| tree | 38ec77c1af29c2f6616ec243166ca0f70c7e1e56 /gcc/builtins.c | |
| parent | 6d1cb95f3fe55d63086401db8e1f427ec22b4ded (diff) | |
| download | gcc-946137a0d6d4bb6d325491f59e0043d67b345377.zip gcc-946137a0d6d4bb6d325491f59e0043d67b345377.tar.gz gcc-946137a0d6d4bb6d325491f59e0043d67b345377.tar.bz2 | |
builtins.c (expand_builtin_strcpy): Don't evaluate side-effects in src twice.
* builtins.c (expand_builtin_strcpy): Don't evaluate side-effects in
src twice.
* gcc.c-torture/execute/string-opt-17.c: New test.
From-SVN: r68431
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 97c3372..372c0c2 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -2788,7 +2788,7 @@ expand_builtin_strcpy (tree arglist, rtx target, enum machine_mode mode) src = TREE_VALUE (TREE_CHAIN (arglist)); len = c_strlen (src); - if (len == 0) + if (len == 0 || TREE_SIDE_EFFECTS (len)) return 0; dst = TREE_VALUE (arglist); |