[PATCH] D86059: GlobalISel: Combine G_ADD of G_PTRTOINT to G_PTR_ADD

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: paquette, aditya_nandakumar, dsanders, aemerson.
Herald added subscribers: kerbowa, hiraditya, rovka, nhaehnle, jvesely.
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arsenm requested review of this revision.
Herald added a subscriber: wdng.

This produces less work for addressing mode matching. I think this is
safe since I don't think machine IR is supposed to give the same
aliasing properties as getelementptr in the IR.


https://reviews.llvm.org/D86059

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/combine-add-to-ptradd.mir

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