Function _mm512_mask_multishift_epi64_epi8
#[target_feature(enable = "avx512vbmi")]
pub fn _mm512_mask_multishift_epi64_epi8(src: __m512i, k: __mmask64, a: __m512i, b: __m512i) -> __m512iFor each 64-bit element in b, select 8 unaligned bytes using a byte-granular shift control within the corresponding 64-bit element of a, and store the 8 assembled bytes to the corresponding 64-bit element of dst using writemask k (elements are copied from src when the corresponding mask bit is not set).