# Function core::arch::x86::_mm512_zextpd128_pd512

source ·

    pub unsafe fn _mm512_zextpd128_pd512(a: __m128d) -> __m512d

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512` #111137)
Available on (x86 or x86-64) and target feature `avx512f` and x86 only.
Expand description

Cast vector of type __m128d to type __m512d; the upper 384 bits of the result are zeroed. This intrinsic is only used for compilation and does not generate any instructions, thus it has zero latency.

Intel’s documentation