Function _mm256_mask_cvtusepi32_storeu_epi8
#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub unsafe fn _mm256_mask_cvtusepi32_storeu_epi8(mem_addr: *mut i8, k: __mmask8, a: __m256i)Convert packed unsigned 32-bit integers in a to packed 8-bit integers with unsigned saturation, and store the active results (those with their respective bit set in writemask k) to unaligned memory at base_addr.