https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104978
--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Hongtao.liu from comment #0)
> #include<immintrin.h>
> __m128h
> foo (__m128h a, __m128h b, __m128h c, __mmask8 m)
> {
> return _mm_mask_fcmadd_round_sch (a, m, b, c, 8);
> }
>
>
> _Z3fooDv8_DF16_S_S_h:
> kmovd k1, edi
> vfcmaddcsh xmm2{k1}, xmm0, xmm1, {rn-sae}
> vmovaps xmm0{k1}, xmm2
> ret
>
> k1 must & 1 before vmovaps xmm0{k1}, xmm2.
Or just vmovaps xmm0, xmm2 since vfcmaddcsh will copy upper [32:128] from
src1(xmm0) here.
