[PATCH] D30539: [tablegen][globalisel] Add support for nested instruction matching.

[Daniel Sanders via Phabricator via llvm-commits]

dsanders updated this revision to Diff 90348.
dsanders added a comment.

A small improvement to the isObviouslySafeToFold() check. There's no need to
check the root instruction since it isn't moving.


https://reviews.llvm.org/D30539

Files:
  include/llvm/CodeGen/GlobalISel/InstructionSelector.h
  include/llvm/Target/GlobalISel/SelectionDAGCompat.td
  lib/CodeGen/GlobalISel/InstructionSelector.cpp
  lib/Target/AArch64/AArch64InstructionSelector.cpp
  test/CodeGen/AArch64/GlobalISel/arm64-instructionselect-muladd.mir
  test/CodeGen/AArch64/GlobalISel/arm64-instructionselect-sext.mir
  test/CodeGen/AArch64/GlobalISel/arm64-instructionselect-zext.mir
  utils/TableGen/GlobalISelEmitter.cpp

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