[llvm] Added ISD::FMAXIMUM/ISD::FMINIMUM + ISD::FMAXIMUMNUM/ISD::FMINIMUMNUM (PR #190465)

[Kartik Ohlan via llvm-commits]

Ko496-glitch wrote:

@RKSimon  could you point me to any file i can use as a reference for denormal test coverage, i am kind of confuse on how tests should cover different modes like FTZ/DAZ ? 

https://github.com/llvm/llvm-project/pull/190465