Function core::arch::x86::_mm256_mask_permutexvar_epi64

pub unsafe fn _mm256_mask_permutexvar_epi64(
    src: __m256i, 
    k: __mmask8, 
    idx: __m256i, 
    a: __m256i
) -> __m256i

🔬 This is a nightly-only experimental API. (stdsimd #48556)

Available on x86 and target feature avx512f,avx512vl only.

Shuffle 64-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