arch:: x86_64:: _mm_madd_epi16
pub unsafe fn _mm_madd_epi16(a: __m128i, b: __m128i) -> __m128i
This is supported on x86-64 and target feature
Multiplies and then horizontally add signed 16 bit integers in
Multiplies packed signed 16-bit integers in
intermediate signed 32-bit integers. Horizontally add adjacent pairs of
intermediate 32-bit integers.