core::arch::x86

Function _mm256_dpbssds_epi32

Source 
pub unsafe fn _mm256_dpbssds_epi32(
    src: __m256i,
    a: __m256i,
    b: __m256i,
) -> __m256i
🔬This is a nightly-only experimental API. (stdarch_x86_avx512 #111137)
Available on (x86 or x86-64) and target feature avxvnniint8 and x86 only.
Expand description

Multiply groups of 4 adjacent pairs of signed 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 with signed saturation, and store the packed 32-bit results in dst.

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