Function core_arch::x86::_mm_cvtsd_ss

pub unsafe fn _mm_cvtsd_ss(a: __m128, b: __m128d) -> __m128

This is supported on x86 and target feature sse2 only.

Converts the lower double-precision (64-bit) floating-point element in b to a single-precision (32-bit) floating-point element, store the result in the lower element of the return value, and copies the upper element from a to the upper element the return value.

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