# Function core::arch::x86_64::_mm512_maskz_cvtepi8_epi64

source ·

    pub unsafe fn _mm512_maskz_cvtepi8_epi64(k: __mmask8, a: __m128i) -> __m512i

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `avx512f` only.
Expand description

Sign extend packed 8-bit integers in the low 8 bytes of a to packed 64-bit integers, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

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