[PATCH] D109748: [GlobalISel][Legalizer] Use ArtifactValueFinder first for unmerge combines before trying others.

[Amara Emerson via Phabricator via llvm-commits]

aemerson updated this revision to Diff 373752.
aemerson added a comment.
Herald added a subscriber: hiraditya.

Rebase after the DCE change landed. Now the diffs show that code is no worse, and in some cases better than before.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D109748/new/

https://reviews.llvm.org/D109748

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizationArtifactCombiner.h
  llvm/lib/CodeGen/GlobalISel/Legalizer.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-extract-vector-elt.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-load-store.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-shuffle-vector.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fshl.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fshr.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-insert-vector-elt.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.load.2d.d16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.image.load.1d.d16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/xnor.ll

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