Function core::arch::x86::_mm_dpwssds_epi32

pub unsafe fn _mm_dpwssds_epi32(src: __m128i, a: __m128i, b: __m128i) -> __m128i

🔬 This is a nightly-only experimental API. (stdsimd #48556)

Available on x86 and target feature avx512vnni,avx512vl only.

Multiply groups of 2 adjacent pairs of signed 16-bit integers in a with corresponding 16-bit integers in b, producing 2 intermediate signed 32-bit results. Sum these 2 results with the corresponding 32-bit integer in src using signed saturation, and store the packed 32-bit results in dst.

Intel’s documentation