Function core::arch::x86::_mm256_shldi_epi64

pub unsafe fn _mm256_shldi_epi64(
    a: __m256i,
    b: __m256i,
    const IMM8: i32
) -> __m256i

🔬This is a nightly-only experimental API. (stdsimd #48556)

Available on (x86 or x86-64) and target feature avx512vbmi2,avx512vl only.

Concatenate packed 64-bit integers in a and b producing an intermediate 128-bit result. Shift the result left by imm8 bits, and store the upper 64-bits in dst).

Intel’s documentation