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

[Amara Emerson via Phabricator via llvm-commits]

aemerson created this revision.
aemerson added reviewers: arsenm, foad.
aemerson added a project: LLVM.
Herald added subscribers: kerbowa, tpr, rovka, nhaehnle, jvesely.
aemerson requested review of this revision.
Herald added a subscriber: wdng.

This is motivated by an pathological compile time issue during unmerge combining.

We should be able to use the AVF to do simplification. However AMDGPU has a lot of codegen changes which I'm not sure how to evaluate.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109748

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizationArtifactCombiner.h
  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-phi.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-shuffle-vector.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ashr.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fadd.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fcanonicalize.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fcos.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fdiv.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ffloor.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fma.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fmaxnum.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fminnum.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fmul.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fshl.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fshr.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fsin.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fsqrt.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fsub.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-insert-vector-elt.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-intrinsic-round.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.load.2d.d16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-lshr.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-saddo.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-saddsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-select.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sext-inreg.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-shl.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-smax.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-smin.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sshlsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ssubo.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ssubsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uaddo.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uaddsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-umax.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-umin.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ushlsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-usubo.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-usubsat.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.image.load.1d.d16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/xnor.ll