_mm_fnmadd_sd in core::arch::x86 - Rust
Description: Multiplies the lower double-precision (64-bit) floating-point elements in `a` and `b`, and add the negated intermediate result to the lower element in `c`. 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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## _mm_fnmadd_sd

# Function _mm_fnmadd_sd

1.27.0 (const: unstable) · Source

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

Available on x86 and target feature `fma` only.
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Multiplies the lower double-precision (64-bit) floating-point elements in `a` and `b`, and add the negated intermediate result to the lower element in `c`. 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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