# Function core::arch::x86::_mm512_mask_bitshuffle_epi64_mask [−][src]

`pub unsafe fn _mm512_mask_bitshuffle_epi64_mask(`

k: __mmask64,

b: __m512i,

c: __m512i

) -> __mmask64

This is supported on

**x86 and target feature**only.`avx512bitalg`

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

Uses the writemask in k - elements are zeroed in the result if the corresponding mask bit is not set. Otherwise the computation result is written into the result.