[PATCH] D76838: [LV][LoopInfo] Transform counting-down loops to counting-up loop

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer updated this revision to Diff 253896.
SjoerdMeijer retitled this revision from "[LV] WIP: Tail-folding counting down loops" to "[LV][LoopInfo] Transform counting-down loops to counting-up loop".
SjoerdMeijer edited the summary of this revision.
SjoerdMeijer added a reviewer: dmgreen.
SjoerdMeijer added a comment.

Rewrite using new function `reverseInductionVariable` in LoopInfo, see also the updated Title/Summary.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76838/new/

https://reviews.llvm.org/D76838

Files:
  llvm/include/llvm/Analysis/LoopInfo.h
  llvm/lib/Analysis/LoopInfo.cpp
  llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
  llvm/test/Transforms/LoopVectorize/ARM/tail-folding-counting-down.ll

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