[PATCH] D99743: [AMDGPU] Use enum for flat variants. NFC

[Sebastian Neubauer via Phabricator via llvm-commits]

sebastian-ne created this revision.
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Use an enum `FlatInstVariant` to differentiate between the different
variants of flat instructions (flat, global and scratch).
This should make it easier to bundle the immediate offset logic in a
single place and implement restrictions and bug workarounds.

Fixed version of D99587 <https://reviews.llvm.org/D99587>, which does not rely on the address space.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D99743

Files:
  llvm/lib/Target/AMDGPU/AMDGPU.td
  llvm/lib/Target/AMDGPU/AMDGPUGISel.td
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
  llvm/lib/Target/AMDGPU/FLATInstructions.td
  llvm/lib/Target/AMDGPU/SIDefines.h
  llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
  llvm/lib/Target/AMDGPU/SIInstrInfo.h
  llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp

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