# Function core::arch::x86_64::_mm_shldi_epi64

source · [−]

    pub unsafe fn _mm_shldi_epi64(a: __m128i, b: __m128i, const IMM8: i32) -> __m128i

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `avx512vbmi2,avx512vl` and x86-64 only.
Expand description

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