# Function core::arch::x86_64::_mm256_castph_pd

source ·

    pub unsafe fn _mm256_castph_pd(a: __m256h) -> __m256d

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16` and x86-64 only.
Expand description

Cast vector of type `__m256h` 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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