[PATCH] D73978: [WIP][FPEnv] Don't transform FSUB(-0.0,X)->FNEG(X) when flushing denormals

[Cameron McInally via Phabricator via llvm-commits]

cameron.mcinally updated this revision to Diff 254198.
cameron.mcinally added a comment.

Remove DenormalMode::Invalid check as suggested by @arsenm.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73978/new/

https://reviews.llvm.org/D73978

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
  llvm/test/CodeGen/AMDGPU/fcanonicalize-elimination.ll
  llvm/test/CodeGen/AMDGPU/fcanonicalize.f16.ll
  llvm/test/CodeGen/AMDGPU/fcanonicalize.ll
  llvm/test/CodeGen/AMDGPU/fdiv32-to-rcp-folding.ll
  llvm/test/CodeGen/AMDGPU/fmuladd.f16.ll
  llvm/test/CodeGen/AMDGPU/fmuladd.f32.ll
  llvm/test/CodeGen/AMDGPU/fneg-combines.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.fmed3.ll
  llvm/test/CodeGen/AMDGPU/selectcc-opt.ll
  llvm/test/CodeGen/AMDGPU/set-dx10.ll
  llvm/test/CodeGen/X86/fp-denormals.ll

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