[PATCH] D137811: InstCombine: Port amdgcn.class intrinsic combines to is.fpclass

[Matt Arsenault via Phabricator via llvm-commits]

arsenm updated this revision to Diff 478950.
arsenm added a comment.

Propagate poison. Leave undef alone, I still think test all/test none should win for undef


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137811/new/

https://reviews.llvm.org/D137811

Files:
  llvm/lib/Analysis/ConstantFolding.cpp
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
  llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
  llvm/lib/Transforms/InstCombine/InstCombineInternal.h
  llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll
  llvm/test/Transforms/InstCombine/is_fpclass.ll

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