pub unsafe fn _mm512_mask_permutexvar_epi8(
    src: __m512i,
    k: __mmask64,
    idx: __m512i,
    a: __m512i
) -> __m512i
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 and target feature avx512vbmi only.
Expand description

Shuffle 8-bit integers in a across lanes using the corresponding index in idx, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel’s documentation