# Function core::arch::x86_64::_mm512_mask_multishift_epi64_epi8

source ·

    pub unsafe fn _mm512_mask_multishift_epi64_epi8(
        src: __m512i,
        k: __mmask64,
        a: __m512i,
        b: __m512i
    ) -> __m512i

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `avx512vbmi` only.
Expand description

For each 64-bit element in b, select 8 unaligned bytes using a byte-granular shift control within the corresponding 64-bit element of a, and store the 8 assembled bytes to the corresponding 64-bit element of dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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