pub unsafe fn _mm512_shldi_epi16<const IMM8: i32>(
    a: __m512i,
    b: __m512i
) -> __m512i
🔬 This is a nightly-only experimental API. (stdsimd)
This is supported on x86-64 and target feature avx512vbmi2 only.
Expand description

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

Intel’s documentation