Function _mm256_shrdv_epi16

#[target_feature(enable = "avx512vbmi2", enable = "avx512vl")]
pub const fn _mm256_shrdv_epi16(a: __m256i, b: __m256i, c: __m256i) -> __m256i

Concatenate packed 16-bit integers in b and a producing an intermediate 32-bit result. Shift the result right by the amount specified in the corresponding element of c, and store the lower 16-bits in dst.

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