Function core_arch::x86::_mm256_mullo_epi16

pub unsafe fn _mm256_mullo_epi16(a: __m256i, b: __m256i) -> __m256i

This is supported on x86 and target feature avx2 only.

Multiplies the packed 16-bit integers in a and b, producing intermediate 32-bit integers, and returns the low 16 bits of the intermediate integers

Intel's documentation