[PATCH] D130618: [AArch64][LoopVectorize] Enable tail-folding by default for SVE

[David Sherwood via Phabricator via llvm-commits]

david-arm updated this revision to Diff 449273.
david-arm added a comment.

- Renamed TailFoldingKind -> TailFoldingOption and introduced a simple TailFoldingKind class.
- TailFoldingOption now stashes a copy of the option string and parses it on demand to ensure that bits are added and removed in the correct order.
- Added a new `satisfies(TailFoldingKind Required)` interface to TailFoldingOption and simplified the logic in getScalarEpilogueLowering


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D130618/new/

https://reviews.llvm.org/D130618

Files:
  llvm/lib/Target/AArch64/AArch64Subtarget.cpp
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-option.ll

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