pub unsafe fn _mm256_permute2x128_si256(
    a: __m256i,
    b: __m256i,
    const IMM8: i32
) -> __m256i
Available on (x86 or x86-64) and target feature avx2 and x86-64 only.
Expand description

Shuffles 128-bits of integer data selected by imm8 from a and b.

Intel’s documentation

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