https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92865
--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
Since TARGET_XOP only supports 128-bit vector compare, ix86_valid_mask_cmp_mode
should also handle 256/512-bit vector compare when avx512f is avalable.
untested patch
@@ -3428,7 +3428,7 @@ static bool
ix86_valid_mask_cmp_mode (machine_mode mode)
{
/* XOP has its own vector conditional movement. */
- if (TARGET_XOP)
+ if (TARGET_XOP && GET_MODE_SIZE (mode) == 128)
return false;
/* AVX512F is needed for mask operation. */
I'll add some testcase later.