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## _mm_mask_alignr_epi64

# Function _mm_mask_alignr_epi64

1.89.0 (const: unstable) · Source

    pub fn _mm_mask_alignr_epi64(
        src: __m128i,
        k: __mmask8,
        a: __m128i,
        b: __m128i,
        const IMM8: i32,
    ) -> __m128i

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

Concatenate a and b into a 32-byte immediate result, shift the result right by imm8 64-bit elements, and store the low 16 bytes (2 elements) in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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