[llvm] LangRef: Clarify llvm.minnum and llvm.maxnum about sNaN and signed zero (PR #112852)

[YunQiang Su via llvm-commits]

wzssyqa wrote:

> If these intrinsics now define the order of -0.0/+0.0, but the fmax and fmin library calls don't, how are we allowed to expand these intrinsics the fmax/fmin libcalls?

Yes. You are right. It is a bug yet not being fixed.

https://github.com/llvm/llvm-project/pull/112852