[PATCH] D139506: [AMDGPU] Handle nnan and fast on the call in fpmed3 patterns

[Justin Bogner via Phabricator via llvm-commits]

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We were only allowing these med3 patterns if the operands were known to not be NaN, but we should also allow it if the calls to max/min have the `nnan` or `fast` flags.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139506

Files:
  llvm/lib/Target/AMDGPU/AMDGPUGISel.td
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
  llvm/lib/Target/AMDGPU/AMDGPUInstructions.td
  llvm/lib/Target/AMDGPU/SIInstrInfo.td
  llvm/lib/Target/AMDGPU/SIInstructions.td
  llvm/test/CodeGen/AMDGPU/GlobalISel/fmed3.ll
  llvm/test/CodeGen/AMDGPU/fmed3.ll

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