[PATCH] D22281: [CodeGen] Refactor MachineMemOperand's Flags enum.

[Justin Lebar via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: chandlerc.
jlebar added a subscriber: llvm-commits.

- Give it a shorter name (because we're going to refer to it often from
  SelectionDAG and friends).

- Specialize FlagsEnumTraits for it, so we can do bitwise ops on it
  without losing type information.

- Make some enum values constants in MachineMemOperand instead.
  MOMaxBits should not be a valid Flag.

- Simplify some of the bitwise ops for dealing with Flags.

http://reviews.llvm.org/D22281

Files:
  include/llvm/CodeGen/MachineMemOperand.h
  lib/CodeGen/MachineFunction.cpp
  lib/CodeGen/MachineInstr.cpp
  lib/Target/AArch64/AArch64InstrInfo.cpp

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