Function _mm512_mask_compressstoreu_epi8
#[target_feature(enable = "avx512vbmi2")]
pub unsafe fn _mm512_mask_compressstoreu_epi8(base_addr: *mut i8, k: __mmask64, a: __m512i)Contiguously store the active 8-bit integers in a (those with their respective bit set in writemask k) to unaligned memory at base_addr.