[PATCH] D45543: [globalisel] Add a combiner helpers for extending loads and use them in a pre-legalize combiner for AArch64

[Daniel Sanders via Phabricator via llvm-commits]

dsanders updated this revision to Diff 148961.
dsanders added a comment.

The full patch. The previous update was taken from the wrong machine and hadn't
been finished. Aside from not compiling, there was also a bug where additional
combine attempts would see G_SEXTLOAD mutate into G_LOAD (the anyext form).


Repository:
  rL LLVM

https://reviews.llvm.org/D45543

Files:
  include/llvm/CodeGen/GlobalISel/Combiner.h
  include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  include/llvm/CodeGen/GlobalISel/CombinerInfo.h
  include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
  lib/CodeGen/GlobalISel/Combiner.cpp
  lib/CodeGen/GlobalISel/CombinerHelper.cpp
  lib/Target/AArch64/AArch64.h
  lib/Target/AArch64/AArch64PreLegalizerCombiner.cpp
  lib/Target/AArch64/AArch64TargetMachine.cpp
  lib/Target/AArch64/CMakeLists.txt
  test/CodeGen/AArch64/GlobalISel/arm64-fallback.ll
  test/CodeGen/AArch64/GlobalISel/gisel-commandline-option.ll
  test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-extending-loads.mir
  test/CodeGen/AArch64/O0-pipeline.ll

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