diff options
| -rw-r--r-- | gnu/gcc/gcc/builtins.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/gnu/gcc/gcc/builtins.c b/gnu/gcc/gcc/builtins.c index f6c00447aa6..7a927d2d6da 100644 --- a/gnu/gcc/gcc/builtins.c +++ b/gnu/gcc/gcc/builtins.c @@ -3060,10 +3060,19 @@ expand_builtin_memmove (tree arglist, tree type, rtx target, it is ok to use memcpy as well. */ if (integer_onep (len)) { - rtx ret = expand_builtin_mempcpy (arglist, type, target, mode, - /*endp=*/0); - if (ret) - return ret; +#if defined(SUBWORD_ACCESS_P) + if (SUBWORD_ACCESS_P + || (src_align >= BIGGEST_ALIGNMENT + && dest_align >= BIGGEST_ALIGNMENT)) + { +#endif + rtx ret = expand_builtin_mempcpy (arglist, type, target, mode, + /*endp=*/0); + if (ret) + return ret; +#if defined(SUBWORD_ACCESS_P) + } +#endif } /* Otherwise, call the normal function. */ |