Function _mm256_cvtusepi16_epi8

#[target_feature(enable = "avx512bw", enable = "avx512vl")]
pub const fn _mm256_cvtusepi16_epi8(a: __m256i) -> __m128i

Convert packed unsigned 16-bit integers in a to packed unsigned 8-bit integers with unsigned saturation, and store the results in dst.

Intel's documentation