diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 983cbc5..c597e44 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -11760,17 +11760,11 @@ fold_builtin_strcat (location_t loc ATTRIBUTE_UNUSED, tree dst, tree src) if (!strlen_fn || !strcpy_fn) return NULL_TREE; - /* If we don't have a movstr we don't want to emit an strcpy - call. We have to do that if the length of the source string - isn't computable (in that case we can use memcpy probably - later expanding to a sequence of mov instructions). If we - have movstr instructions we can emit strcpy calls. */ - if (!HAVE_movstr) - { - tree len = c_strlen (src, 1); - if (! len || TREE_SIDE_EFFECTS (len)) - return NULL_TREE; - } + /* If the length of the source string isn't computable don't + split strcat into strlen and strcpy. */ + tree len = c_strlen (src, 1); + if (! len || TREE_SIDE_EFFECTS (len)) + return NULL_TREE; /* Stabilize the argument list. */ dst = builtin_save_expr (dst); |