pub unsafe fn _mm_mask_shrdv_epi16(
    a: __m128i,
    k: u8,
    b: __m128i,
    c: __m128i
) -> __m128i
🔬 This is a nightly-only experimental API. (stdsimd)
This is supported on x86-64 and target feature avx512vbmi2,avx512vl only.
Expand description

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 using writemask k (elements are copied from a when the corresponding mask bit is not set).

Intel’s documentation