# Function core::arch::x86::_mm512_maskz_shldi_epi64

source ·

    pub unsafe fn _mm512_maskz_shldi_epi64(
        k: __mmask8,
        a: __m512i,
        b: __m512i,
        const IMM8: i32
    ) -> __m512i

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `avx512vbmi2` 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 using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

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