[PATCH] D85829: [NFCI][SimpleLoopUnswitch] Adjust CostKind query

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
samparker added reviewers: mkazantsev, dfukalov, asbirlea.
Herald added subscribers: hiraditya, kristof.beyls.
Herald added a project: LLVM.
samparker requested review of this revision.

When getUserCost was transitioned to use an explicit CostKind, TCK_CodeSize was used even though the original kind was implicitly SizeAndLatency so restore this behaviour. We now only query for CodeSize when optimising for minsize.
I expect this to not change anything as, I think all, targets will currently return the same value for CodeSize and SizeLatency. Indeed I see no changes in the test suite for Arm, AArch64 and X86.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D85829

Files:
  llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
  llvm/test/Transforms/SimpleLoopUnswitch/ARM/lit.local.cfg
  llvm/test/Transforms/SimpleLoopUnswitch/ARM/nontrivial-unswitch-cost.ll

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