# Function core::arch::x86_64::_mm_bitshuffle_epi64_mask[−][src]

    pub unsafe fn _mm_bitshuffle_epi64_mask(b: __m128i, c: __m128i) -> __mmask16

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86-64 and target feature `avx512bitalg,avx512vl` only.

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 the bits of the corresponding 64-bit integer. It then selects these bits and packs them into the output.

Intel's documentation