Function creusot_contracts::std::arch::x86_64::_mm_maskz_dpbusds_epi32
source · pub unsafe fn _mm_maskz_dpbusds_epi32(
k: u8,
src: __m128i,
a: __m128i,
b: __m128i,
) -> __m128i
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512
)Available on x86-64 only.
Expand description
Multiply groups of 4 adjacent pairs of unsigned 8-bit integers in a with corresponding signed 8-bit integers in b, producing 4 intermediate signed 16-bit results. Sum these 4 results with the corresponding 32-bit integer in src using signed saturation, and store the packed 32-bit results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).