[PATCH] D30089: [globalisel][tblgen] Add support for ComplexPatterns

[Daniel Sanders via Phabricator via llvm-commits]

dsanders created this revision.
Herald added subscribers: kristof.beyls, dberris.
Herald added a reviewer: javed.absar.

Adds a new kind of MachineOperand: MO_Placeholder.
This operand must not appear in the MIR and only exists as a way of
creating an 'uninitialized' operand until a matcher function overwrites it.

Depends on https://reviews.llvm.org/D30046, https://reviews.llvm.org/D29712


https://reviews.llvm.org/D30089

Files:
  include/llvm/CodeGen/MachineOperand.h
  include/llvm/Target/GlobalISel/SelectionDAGCompat.td
  include/llvm/Target/GlobalISel/Target.td
  include/llvm/Target/Target.td
  lib/CodeGen/MIRPrinter.cpp
  lib/CodeGen/MachineInstr.cpp
  lib/Target/AArch64/AArch64InstrFormats.td
  lib/Target/AArch64/AArch64InstructionSelector.cpp
  lib/Target/AArch64/AArch64InstructionSelector.h
  lib/Target/ARM/ARMExpandPseudoInsts.cpp
  test/CodeGen/AArch64/GlobalISel/arm64-instructionselect.mir
  test/TableGen/GlobalISelEmitter.td
  utils/TableGen/GlobalISelEmitter.cpp

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