# Function _mm512_mask_popcnt_epi64

1.89.0 · Source

    pub fn _mm512_mask_popcnt_epi64(
        src: __m512i,
        k: __mmask8,
        a: __m512i,
    ) -> __m512i

Available on (x86 or x86-64) and target feature `avx512vpopcntdq` and x86-64 only.
Expand description

For each packed 64-bit integer maps the value to the number of logical 1 bits.

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

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