llvm-project

03d453a5 - [libc][math] Fix FP add/sub for signed-zero operands (#183243)

[libc][math] Fix FP add/sub for signed-zero operands (#183243) (-0.0) + (-0.0) and (-0.0) - (+0.0) returned +0.0 instead of -0.0. Ensure these cases comply with IEEE 754 §6.3 rule.