Function _mm256_alignr_epi64

pub unsafe fn _mm256_alignr_epi64(
    a: __m256i,
    b: __m256i,
    const IMM8: i32,
) -> __m256i

🔬This is a nightly-only experimental API. (stdarch_x86_avx512 #111137)

Available on (x86 or x86-64) and target feature avx512f,avx512vl and x86-64 only.

Concatenate a and b into a 64-byte immediate result, shift the result right by imm8 64-bit elements, and store the low 32 bytes (4 elements) in dst.

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