Function surge_halfrate::imports::_mm256_madd_epi16

pub unsafe fn _mm256_madd_epi16(a: __m256i, b: __m256i) -> __m256i

This is supported with target feature avx2 only.

Multiplies packed signed 16-bit integers in a and b, producing intermediate signed 32-bit integers. Horizontally add adjacent pairs of intermediate 32-bit integers.

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