[PATCH] D33590: [globalisel][tablegen] Add support for COPY_TO_REGCLASS.

[Daniel Sanders via Phabricator via llvm-commits]

dsanders created this revision.
Herald added subscribers: igorb, javed.absar.

As part of this

- Emitted instructions now have named MachineInstr variables associated with them. This isn't particularly important yet but it's a small step towards multiple-insn emission.
- constrainSelectedInstRegOperands() is no longer hardcoded. It's now added as the ConstrainOperandsToDefinitionAction() action. COPY_TO_REGCLASS uses an alternate constraint mechanism ConstrainOperandToRegClassAction() which supports arbitrary constraints such as that defined by COPY_TO_REGCLASS.


https://reviews.llvm.org/D33590

Files:
  include/llvm/CodeGen/GlobalISel/InstructionSelector.h
  include/llvm/CodeGen/GlobalISel/Utils.h
  lib/CodeGen/GlobalISel/InstructionSelector.cpp
  lib/CodeGen/GlobalISel/Utils.cpp
  test/CodeGen/AArch64/GlobalISel/select-bitcast.mir
  test/TableGen/GlobalISelEmitter.td
  utils/TableGen/GlobalISelEmitter.cpp

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