# [−][src]Function core::arch::x86_64::_mm_cvt_roundss_sd

    pub unsafe fn _mm_cvt_roundss_sd(a: __m128d, b: __m128, sae: i32) -> __m128d

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

Convert the lower single-precision (32-bit) floating-point element in b to a double-precision (64-bit) floating-point element, store the result in the lower element of dst, and copy the upper element from a to the upper element of dst.
Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter.

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