[PATCH] D70114: AMDGPU: Extend add x, (ext setcc) combine to sub

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: rampitec.
Herald added subscribers: hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.

This is the same as the add case, but inverts the operation type.

      

This avoids regressions in a future patch.


https://reviews.llvm.org/D70114

Files:
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll

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