[PATCH] D87826: [ARM] Enable multiple icmp when tail folding

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
samparker added reviewers: SjoerdMeijer, dmgreen.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
Herald added a project: LLVM.
samparker requested review of this revision.

Now that we are handling VCMP and VPT during the tail predication, we should allow more than a single icmp when deciding when to tail fold or not.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87826

Files:
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/test/Transforms/LoopVectorize/ARM/mve-reduction-predselect.ll
  llvm/test/Transforms/LoopVectorize/ARM/prefer-tail-loop-folding.ll
  llvm/test/Transforms/LoopVectorize/ARM/tail-fold-multiple-icmps.ll
  llvm/test/Transforms/LoopVectorize/ARM/tail-folding-not-allowed.ll

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