Function _mm256_permutex2var_epi8

pub fn _mm256_permutex2var_epi8(a: __m256i, idx: __m256i, b: __m256i) -> __m256i

Available on (x86 or x86-64) and target feature avx512vbmi,avx512vl and x86 only.

Shuffle 8-bit integers in a and b across lanes using the corresponding selector and index in idx, and store the results in dst.

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