Function core::arch::x86_64::_mm256_mask_alignr_epi8

pub unsafe fn _mm256_mask_alignr_epi8<const IMM8: i32>(
    src: __m256i, 
    k: __mmask32, 
    a: __m256i, 
    b: __m256i
) -> __m256i

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on x86-64 and target feature avx512bw,avx512vl only.

Concatenate pairs of 16-byte blocks in a and b into a 32-byte temporary result, shift the result right by imm8 bytes, and store the low 16 bytes in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel’s documentation