| --- a/gcc/builtins.c 2011-04-16 10:59:14.606530377 -0700 |
| +++ b/gcc/builtins.c 2011-04-16 11:02:20.572776096 -0700 |
| @@ -3298,6 +3298,11 @@ expand_builtin_memcpy (tree exp, rtx tar |
| len_rtx = expand_normal (len); |
| src_str = c_getstr (src); |
| |
| + /* Call optimized libc memcpy for larger copies */ |
| + if (CONST_INT_P (len_rtx) |
| + && (unsigned HOST_WIDE_INT) INTVAL (len_rtx) > 256) |
| + return NULL_RTX; |
| + |
| /* If SRC is a string constant and block move would be done |
| by pieces, we can avoid loading the string from memory |
| and only stored the computed constants. */ |
