[PATCH] D83671: GlobalISel: Implement widenScalar for saturating add/sub

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: foad, aemerson, aditya_nandakumar, paquette, kerbowa.
Herald added subscribers: hiraditya, tpr, rovka, nhaehnle, wdng, jvesely.
Herald added a project: LLVM.

Add a placeholder legality rule for AMDGPU until the rest of the
actions are handled.


https://reviews.llvm.org/D83671

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-saddsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ssubsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uaddsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-usubsat.mir

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