[PATCH] D85980: [ARM][LV] Add a preferPredicatedReductionSelect target hook

[Dave Green via Phabricator via llvm-commits]

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

As part of D84741 <https://reviews.llvm.org/D84741>, this adds a target hook for the preferPredicatedReductionSelect option and makes use of it under MVE, allowing us to tail predicate most reduction loops.


https://reviews.llvm.org/D85980

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/ARM/mve-reduction-predselect.ll
  llvm/test/Transforms/LoopVectorize/ARM/tail-folding-not-allowed.ll

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