[PATCH] D140883: [AMDGPU] Simplify getNumFlatOffsetBits. NFC.

[Jay Foad via Phabricator via llvm-commits]

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Previously we considered this field to be either N-bit unsigned or
N+1-bit signed, depending on the instruction. I think it's conceptually
simpler to say that the field is always N+1-bit signed, but some
instructions do not allow negative values.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140883

Files:
  llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
  llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
  llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
  llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h

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