[PATCH] D89665: [LSR] ignore profitable chain optimization when instruction number is the major cost

[ChenZheng via Phabricator via llvm-commits]

shchenz updated this revision to Diff 299547.
shchenz added a comment.
Herald added a subscriber: kbarton.

add a new target hook `isRegisterNumberMajorCost`


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89665/new/

https://reviews.llvm.org/D89665

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
  llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
  llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
  llvm/test/CodeGen/PowerPC/lsr-profitable-chain.ll

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