# Function core::arch::x86_64::_mm512_bitshuffle_epi64_mask

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    pub unsafe fn _mm512_bitshuffle_epi64_mask(b: __m512i, c: __m512i) -> __mmask64

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512` #111137)
Available on (x86 or x86-64) and target feature `avx512bitalg` and x86-64 only.
Expand description

Considers the input `b` as packed 64-bit integers and `c` as packed 8-bit integers. Then groups 8 8-bit values from `c`as indices into the bits of the corresponding 64-bit integer. It then selects these bits and packs them into the output.

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