[PATCH] D129560: [AArch64] Add target hook for preferPredicateOverEpilogue

[David Sherwood via Phabricator via llvm-commits]

david-arm updated this revision to Diff 444226.
david-arm edited the summary of this revision.
david-arm added a reviewer: dmgreen.
david-arm added a comment.

- Removed previous test changes.
- Added a new option called "EnabledNoReductions" that only uses tail-predication if the loop does not contain reductions or first-order recurrences.
- Enhanced the TTI hook to take a pointer to LoopVectorizationLegality, which is used to detect the presence of reductions and recurrences.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D129560/new/

https://reviews.llvm.org/D129560

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/AArch64/AArch64TargetTransformInfo.cpp
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-predication.ll

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