[PATCH] D121770: [AMDGPU] Select buffer_atomic_cmpswap* in tblgen

[Abinav Puthan Purayil via Phabricator via llvm-commits]

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This change replaces the manual selection of buffer_atomic_cmpswap*
instructions in SelectionDAG and GlobalISel with a tblgen based
selection in BUFInstructions.td. This allows us to select the return and
no-return variants in tblgen.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121770

Files:
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
  llvm/lib/Target/AMDGPU/BUFInstructions.td
  llvm/test/CodeGen/AMDGPU/GlobalISel/inst-select-amdgpu-atomic-cmpxchg-global.mir

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