# Function core::arch::x86_64::_mm512_castpd512_pd256

source ·

    pub unsafe fn _mm512_castpd512_pd256(a: __m512d) -> __m256d

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

Cast vector of type __m512d to type __m256d. This intrinsic is only used for compilation and does not generate any instructions, thus it has zero latency.

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