pub unsafe fn _mm512_mask_compress_epi8(
    src: __m512i,
    k: __mmask64,
    a: __m512i
) -> __m512i
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86-64 and target feature avx512vbmi2 only.
Expand description

Contiguously store the active 8-bit integers in a (those with their respective bit set in writemask k) to dst, and pass through the remaining elements from src.

Intel’s documentation