[PATCH] D69845: [ARM][MVE] canTailPredicateLoop

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer updated this revision to Diff 228433.
SjoerdMeijer added a comment.

Thanks for checking. Got myself confused about the loads/stores, but I think we indeed want to accept extending loads and narrowing stores, so I've added checks and a bunch of tests:

- for SEXT/ZEXT, the operand needs to be a load,
- for TRUNC, the user needs to be a store.

And have also allowed the float types.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69845/new/

https://reviews.llvm.org/D69845

Files:
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/test/Transforms/LoopVectorize/ARM/prefer-tail-loop-folding.ll

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