[PATCH] D93243: [FPEnv][AMDGPU] Disable FSUB(-0,X)->FNEG(X) DAGCombine when subnormals are flushed

[Cameron McInally via Phabricator via llvm-commits]

cameron.mcinally updated this revision to Diff 312522.
cameron.mcinally added a comment.

Add FIXME comment.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93243/new/

https://reviews.llvm.org/D93243

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AMDGPU/clamp-modifier.ll
  llvm/test/CodeGen/AMDGPU/clamp.ll
  llvm/test/CodeGen/AMDGPU/fdiv32-to-rcp-folding.ll
  llvm/test/CodeGen/AMDGPU/fma-combine.ll
  llvm/test/CodeGen/AMDGPU/fneg-combines.ll
  llvm/test/CodeGen/AMDGPU/fpext-free.ll
  llvm/test/CodeGen/AMDGPU/fptrunc.f16.ll
  llvm/test/CodeGen/AMDGPU/known-never-snan.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.fmad.ftz.ll
  llvm/test/CodeGen/AMDGPU/mad-combine.ll
  llvm/test/CodeGen/AMDGPU/mad-mix.ll
  llvm/test/CodeGen/AMDGPU/rcp-pattern.ll
  llvm/test/CodeGen/AMDGPU/rsq.ll
  llvm/test/CodeGen/AMDGPU/v_mac.ll
  llvm/test/CodeGen/AMDGPU/v_mac_f16.ll

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