Function core::arch::x86_64::_mm256_permute2f128_pd

pub unsafe fn _mm256_permute2f128_pd<const IMM8: i32>(
    a: __m256d, 
    b: __m256d
) -> __m256d

This is supported on x86-64 and target feature avx only.

Shuffles 256 bits (composed of 4 packed double-precision (64-bit) floating-point elements) selected by imm8 from a and b.

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