Function _mm256_mask_compressstoreu_epi8
#[target_feature(enable = "avx512vbmi2", enable = "avx512vl")]
pub unsafe fn _mm256_mask_compressstoreu_epi8(base_addr: *mut i8, k: __mmask32, a: __m256i)Contiguously store the active 8-bit integers in a (those with their respective bit set in writemask k) to unaligned memory at base_addr.