Function core::arch::x86_64::_mm256_mask_shuffle_i64x2

pub unsafe fn _mm256_mask_shuffle_i64x2(
    src: __m256i, 
    k: __mmask8, 
    a: __m256i, 
    b: __m256i, 
    const MASK: i32
) -> __m256i

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

This is supported on x86-64 and target feature avx512f,avx512vl only.

Shuffle 128-bits (composed of 2 64-bit integers) selected by imm8 from a and b, 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