pub unsafe fn _mm512_shrdi_epi16(
    a: __m512i,
    b: __m512i,
    const IMM8: i32
) -> __m512i
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 and target feature avx512vbmi2 only.
Expand description

Concatenate packed 16-bit integers in b and a producing an intermediate 32-bit result. Shift the result right by imm8 bits, and store the lower 16-bits in dst.

Intel’s documentation