[PATCH] D78918: [CostModel] Modify BasicTTI getCastInstrCost

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
samparker added reviewers: spatel, RKSimon, craig.topper, dmgreen.
Herald added a project: LLVM.

Copy some of the DataLayout checking, for int/ptr conversions, into BasicTTI and fix the assumption that all bitcasts of the same type sizes are free. We now only assume that bitcasts between ints and ptrs of the same size are free. This allows TTImpl->getUserCost to just call the concrete implementation of getCastInstrCost.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78918

Files:
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/test/Analysis/CostModel/ARM/cast.ll
  llvm/test/Analysis/CostModel/X86/masked-intrinsic-cost.ll
  llvm/test/Transforms/SLPVectorizer/X86/load-merge.ll

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