[PATCH] D36990: [GISel]: Translate phi into generic G_PHI instruction

[Aditya Nandakumar via Phabricator via llvm-commits]

aditya_nandakumar created this revision.
Herald added a subscriber: javed.absar.

Translate phi instructions into generic G_PHI instructions.
This has the same semantic as PHI but has types for operands.
This lets us verify that the G_PHI has compatible types for all operands.
This also allows specifying legalization actions for weird PHI types.


Repository:
  rL LLVM

https://reviews.llvm.org/D36990

Files:
  include/llvm/CodeGen/MachineInstr.h
  include/llvm/Target/GenericOpcodes.td
  include/llvm/Target/TargetOpcodes.def
  lib/CodeGen/GlobalISel/IRTranslator.cpp
  lib/CodeGen/MachineVerifier.cpp
  lib/Target/AArch64/AArch64InstructionSelector.cpp
  lib/Target/AArch64/AArch64LegalizerInfo.cpp
  lib/Target/AArch64/AArch64RegisterBankInfo.cpp
  test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
  test/CodeGen/AArch64/GlobalISel/select-phi.mir

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