[libc-commits] [libc] [libc] Use -fno-math-errno to for __builtin_fma* to generate fma instructions. (PR #124200)

[Matt Arsenault via libc-commits]

arsenm wrote:

> Hm, I thought that the whole point of the llvm instrinsics was they they didn't have errno behavior. I'm guessing we could enable this by default, but we can see later.

The intrinsics, sure. The builtins are defined as "do what GCC does". 

https://github.com/llvm/llvm-project/pull/124200