Function _mm512_mask2_permutex2var_epi32
#[target_feature(enable = "avx512f")]
pub fn _mm512_mask2_permutex2var_epi32(a: __m512i, idx: __m512i, k: __mmask16, b: __m512i) -> __m512iShuffle 32-bit integers in a and b across lanes using the corresponding selector and index in idx, and store the results in dst using writemask k (elements are copied from idx when the corresponding mask bit is not set).