[PATCH] D142109: [LoopVectorize] Remove runtime check and scalar tail loop when tail-folding.

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen updated this revision to Diff 496150.
sdesmalen marked an inline comment as done.
sdesmalen added a comment.

Added helper functions to query if the active lane mask is used.
Added option to force tail-folding-style to aid testing, and added a new test.
Rebased patch.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142109/new/

https://reviews.llvm.org/D142109

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h
  llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
  llvm/test/Transforms/LoopVectorize/AArch64/scalable-reductions-tf.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-low-trip-count.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-forced.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-optsize.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-reductions.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-unroll.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
  llvm/test/Transforms/LoopVectorize/AArch64/tail-fold-uniform-memops.ll
  llvm/test/Transforms/LoopVectorize/AArch64/tail-folding-styles.ll

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