Function _mm512_mask_cvtepi32_epi8
#[target_feature(enable = "avx512f")]
pub const fn _mm512_mask_cvtepi32_epi8(src: __m128i, k: __mmask16, a: __m512i) -> __m128iConvert packed 32-bit integers in a to packed 8-bit integers with truncation, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).