Function core_arch::x86_64::_mm256_maddubs_epi16

pub unsafe fn _mm256_maddubs_epi16(a: __m256i, b: __m256i) -> __m256i

This is supported on x86-64 and target feature avx2 only.

Vertically multiplies each unsigned 8-bit integer from a with the corresponding signed 8-bit integer from b, producing intermediate signed 16-bit integers. Horizontally add adjacent pairs of intermediate signed 16-bit integers

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