[libc-commits] [libc] [libc][math] Fix FP signed-zero add/sub for zero operands (PR #183243)

[Hanliang Xu via libc-commits]

Hanliang-Xu wrote:

Hi @lntue, would appreciate your review on this FP signed-zero fix!

Originally brought up by @statham-arm here: https://discourse.llvm.org/t/rfc-explore-using-llvm-libc-math-routines-for-compiler-rt-floating-point-builtins/89670/4. Thanks for highlighting this case!

https://github.com/llvm/llvm-project/pull/183243