[all-commits] [llvm/llvm-project] f460c6: [AMDGPU] Simplify getNumFlatOffsetBits. NFC.

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f460c6658107ba214edadcdac9aa0656c4c51505
      https://github.com/llvm/llvm-project/commit/f460c6658107ba214edadcdac9aa0656c4c51505
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2023-01-12 (Thu, 12 Jan 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h

  Log Message:
  -----------
  [AMDGPU] Simplify getNumFlatOffsetBits. NFC.

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.

Differential Revision: https://reviews.llvm.org/D140883