_mm_fnmadd_ss in core::arch::x86 - Rust
Description: Multiplies the lower single-precision (32-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 3 upper elements from `a` to the upper elements of the result.

## _mm_fnmadd_ss

# Function _mm_fnmadd_ss

1.27.0 (const: unstable) · Source

    pub fn _mm_fnmadd_ss(a: __m128, b: __m128, c: __m128) -> __m128

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

Multiplies the lower single-precision (32-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 3 upper elements from `a` to the upper elements of the result.

Intel’s documentation