Function _mm_mask_permutex2var_epi64

pub unsafe fn _mm_mask_permutex2var_epi64(
    a: __m128i,
    k: u8,
    idx: __m128i,
    b: __m128i,
) -> __m128i

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

Available on x86-64 only.

Shuffle 64-bit integers in a and b across lanes using the corresponding selector and index in idx, and store the results in dst using writemask k (elements are copied from a when the corresponding mask bit is not set).

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