XFEATURE_AVX512_OPMASK
ucs->ucx_bv |= XFEATURE_AVX512_OPMASK | XFEATURE_AVX512_ZMM;
case XFEATURE_AVX512_OPMASK:
.xi_bits = XFEATURE_AVX512_OPMASK,
#define XFEATURE_AVX512 (XFEATURE_AVX512_OPMASK | \