Function core::arch::x86::_mm_mask_fnmadd_sd

pub unsafe fn _mm_mask_fnmadd_sd(
    a: __m128d,
    k: __mmask8,
    b: __m128d,
    c: __m128d
) -> __m128d

🔬This is a nightly-only experimental API. (stdsimd #48556)

Available on (x86 or x86-64) and target feature avx512f and x86 only.

Multiply 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 dst using writemask k (the element is copied from a when mask bit 0 is not set), and copy the upper element from a to the upper element of dst.

Intel’s documentation