[PATCH] D99032: GlobalISel: Add FoldBinOpIntoSelect combine

[Matt Arsenault via Phabricator via llvm-commits]

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

This will do the combine in cases that should fold, but don't
now. e.g. we're relying on the CSEMIRBuilder's incomplete constant
folding. For instance it doesn't handle FP operations or vectors (and
we don't have separate constant folding combines either to catch
them).


https://reviews.llvm.org/D99032

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/CodeGen/GlobalISel/Utils.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/lib/CodeGen/GlobalISel/Utils.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/combine-fold-binop-into-select.mir

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