[clang] [llvm] Vectorize: Support fminimumnum and fmaximumnum (PR #131781)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

You can probably write a smaller test using SLPVectorizer, e.g. /llvm/test/Transforms/SLPVectorizer/AMDGPU/round.ll 

https://github.com/llvm/llvm-project/pull/131781