pub unsafe fn _mm512_mask_permutexvar_pd(
    src: __m512d,
    k: u8,
    idx: __m512i,
    a: __m512d
) -> __m512d
🔬 This is a nightly-only experimental API. (stdsimd)
This is supported on x86-64 and target feature avx512f only.
Expand description

Shuffle double-precision (64-bit) floating-point elements 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