# Function core::arch::x86_64::_mm_fnmsub_sd

1.27.0 · source ·

    pub unsafe fn _mm_fnmsub_sd(a: __m128d, b: __m128d, c: __m128d) -> __m128d

Available on (x86 or x86-64) and target feature `fma` and x86-64 only.
Expand description

Multiplies the lower double-precision (64-bit) floating-point elements in `a` and `b`, and subtract packed elements in `c` from the negated intermediate result. Store the result in the lower element of the returned value, and copy the upper element from `a` to the upper elements of the result.

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