[llvm] Intrinsic: introduce minimumnum and maximumnum (PR #96299)

[YunQiang Su via llvm-commits]

wzssyqa wrote:

Relevant Discourses:

https://discourse.llvm.org/t/rfc-fix-llvm-min-f-and-llvm-max-f-intrinsics/79735

https://discourse.llvm.org/t/purpose-of-g-fminnum-maxnum-ieee/78771

https://github.com/llvm/llvm-project/pull/96299