[PATCH] D40836: [CodeGen] Unify printing API for MachineOperand between MIR and debug

[Francis Visoiu Mistrih via Phabricator via llvm-commits]

thegameg created this revision.
Herald added a subscriber: JDevlieghere.

Work towards the unification of MIR and debug output by refactoring the interfaces.

For MachineOperand::print, keep a simple version that can be easily called from `dump()`, and a more complex one which will be called from both the MIRPrinter and MachineInstr::print.

Add extra checks inside MachineOperand for detached operands (operands with getParent() == nullptr).


https://reviews.llvm.org/D40836

Files:
  include/llvm/CodeGen/MachineInstr.h
  include/llvm/CodeGen/MachineOperand.h
  include/llvm/CodeGen/TargetRegisterInfo.h
  lib/CodeGen/MIRPrinter.cpp
  lib/CodeGen/MachineInstr.cpp
  lib/CodeGen/MachineOperand.cpp
  lib/CodeGen/TargetRegisterInfo.cpp
  unittests/CodeGen/MachineOperandTest.cpp

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