https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102285
--- Comment #25 from qinzhao at gcc dot gnu.org ---
(In reply to Richard Biener from comment #22)
> Hmm, my proposed patch seems to work. I've adjusted it to not regress
> previously correctly handled cases and will test it fully.
I guess the reason for it worked for you because you tested it after the patch
for 102587?
--- a/gcc/internal-fn.c
+++ b/gcc/internal-fn.c
@@ -3035,7 +3035,8 @@ expand_DEFERRED_INIT (internal_fn, gcall *stmt)
/* Expand this memset call. */
expand_builtin_memset (m_call, NULL_RTX, TYPE_MODE (var_type));
}
- else
+ /* ??? Deal with poly-int sized registers. */
+ else if (tree_fits_uhwi_p (TYPE_SIZE_UNIT (var_type)))
{
/* If this variable is in a register, use expand_assignment might
generate better code. */
