[PATCH] D68426: [gicombiner] Hoist pure C++ combine into the tablegen definition

[Daniel Sanders via Phabricator via llvm-commits]

dsanders created this revision.
dsanders added reviewers: bogner, volkan.
Herald added subscribers: Petar.Avramovic, hiraditya, kristof.beyls.
Herald added a project: LLVM.

This is just moving the existing C++ code around and will be NFC w.r.t
AArch64. Renamed 'CombineBr' to something more descriptive
('ElideByByInvertingCond') at the same time.

The remaining combines in AArch64PreLegalizeCombiner require features that
aren't implemented at this point and will be hoisted as they are added.

Depends on D68424 <https://reviews.llvm.org/D68424>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D68426

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/TableGen/Error.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/lib/TableGen/Error.cpp
  llvm/lib/Target/AArch64/AArch64Combine.td
  llvm/lib/Target/AArch64/AArch64PreLegalizerCombiner.cpp
  llvm/utils/TableGen/GICombinerEmitter.cpp

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