pub unsafe fn _mm256_permutex2var_epi32(
    a: __m256i,
    idx: __m256i,
    b: __m256i
) -> __m256i
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 and target feature avx512f,avx512vl only.
Expand description

Shuffle 32-bit integers in a and b across lanes using the corresponding selector and index in idx, and store the results in dst.

Intel’s documentation