[PATCH] D77523: Add CanonicalizeFreezeInLoops pass

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune updated this revision to Diff 261712.
aqjune added a comment.

Leave the basic algorithm only.

I see that by this patch alone the slowdown in mcf_r isn't resolved.
I'll bring a follow-up patch.
While doing this, I'll investigate whether it is possible to apply more specific
pattern rather than just looking through instructions within N steps.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77523/new/

https://reviews.llvm.org/D77523

Files:
  llvm/include/llvm/InitializePasses.h
  llvm/include/llvm/Transforms/Utils.h
  llvm/include/llvm/Transforms/Utils/CanonicalizeFreezeInLoops.h
  llvm/lib/Passes/PassBuilder.cpp
  llvm/lib/Passes/PassRegistry.def
  llvm/lib/Transforms/Utils/CMakeLists.txt
  llvm/lib/Transforms/Utils/CanonicalizeFreezeInLoops.cpp
  llvm/lib/Transforms/Utils/Utils.cpp
  llvm/test/Transforms/CanonicalizeFreezeInLoops/func_from_mcf_r.ll
  llvm/test/Transforms/CanonicalizeFreezeInLoops/nonsteps-preserve-flags.ll
  llvm/test/Transforms/CanonicalizeFreezeInLoops/onephi.ll
  llvm/test/Transforms/CanonicalizeFreezeInLoops/phis.ll

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