pub unsafe extern "rust-intrinsic" fn fmuladdf128(
a: f128,
b: f128,
c: f128,
) -> f128
🔬This is a nightly-only experimental API. (
core_intrinsics
)Expand description
Returns a * b + c
for f128
values, non-deterministically executing
either a fused multiply-add or two operations with rounding of the
intermediate result.
The operation is fused if the code generator determines that target instruction set has support for a fused operation, and that the fused operation is more efficient than the equivalent, separate pair of mul and add instructions. It is unspecified whether or not a fused operation is selected, and that may depend on optimization level and context, for example.