Function _mm_castph_pd

pub unsafe fn _mm_castph_pd(a: __m128h) -> __m128d

🔬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.

Cast vector of type __m128h to type __m128d. This intrinsic is only used for compilation and does not generate any instructions, thus it has zero latency.

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