# Function core::arch::x86::_mm256_mask_popcnt_epi8

source ·

    pub unsafe fn _mm256_mask_popcnt_epi8(
        src: __m256i,
        k: __mmask32,
        a: __m256i
    ) -> __m256i

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

For each packed 8-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.

Intel’s documentation