pub unsafe fn _mm512_mask_conflict_epi64(
    src: __m512i,
    k: __mmask8,
    a: __m512i
) -> __m512i
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on (x86 or x86-64) and target feature avx512cd only.
Expand description

Test each 64-bit element of a for equality with all other elements in a closer to the least significant bit using writemask k (elements are copied from src when the corresponding mask bit is not set). Each element’s comparison forms a zero extended bit vector in dst.

Intel’s documentation