Function _mm_mask_compress_epi64

pub unsafe fn _mm_mask_compress_epi64(
    src: __m128i,
    k: u8,
    a: __m128i,
) -> __m128i

🔬This is a nightly-only experimental API. (stdarch_x86_avx512)

Available on x86 only.

Contiguously store the active 64-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