XFEATURE_AVX512_HI_ZMM
ucs->ucx_bv |= XFEATURE_AVX512_HI_ZMM;
case XFEATURE_AVX512_HI_ZMM:
.xi_bits = XFEATURE_AVX512_HI_ZMM,
XFEATURE_AVX512_ZMM | XFEATURE_AVX512_HI_ZMM)