Function _mm_cmpord_sd 

pub fn _mm_cmpord_sd(a: __m128d, b: __m128d) -> __m128d

Available on x86 and target feature sse2 only.

Returns a new vector with the low element of a replaced by the result of comparing both of the lower elements of a and b to NaN. If neither are equal to NaN then 0xFFFFFFFFFFFFFFFF is used and 0 otherwise.

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