# Function core::arch::x86::_mm_maskz_popcnt_epi32

source · [−]

    pub unsafe fn _mm_maskz_popcnt_epi32(k: __mmask8, a: __m128i) -> __m128i

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86 and target feature `avx512vpopcntdq,avx512vl` only.
Expand description

For each packed 32-bit integer maps the value to the number of logical 1 bits.

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.

Intel’s documentation