Function core::arch::x86_64::_mm_fnmadd_pd

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

This is supported on x86-64 and target feature fma only.

Multiplies packed double-precision (64-bit) floating-point elements in a and b, and add the negated intermediate result to packed elements in c.

Intel’s documentation