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## _mm_fmadd_sd

# Function _mm_fmadd_sd

1.27.0 (const: unstable) · Source

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

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

Multiplies the lower double-precision (64-bit) floating-point elements in `a` and `b`, and add the intermediate result to the lower element in `c`. Stores 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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