Function _mm_mask_alignr_epi32

pub fn _mm_mask_alignr_epi32(
    src: __m128i,
    k: __mmask8,
    a: __m128i,
    b: __m128i,
    const IMM8: i32,
) -> __m128i

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

Concatenate a and b into a 32-byte immediate result, shift the result right by imm8 32-bit elements, and store the low 16 bytes (4 elements) in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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