[PATCH] D88086: [ARM][MVE] tail-predication: checks for the elementcount, cont'd

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer updated this revision to Diff 294265.
SjoerdMeijer added a comment.

I am so happy that this approach works! I.e., this determines equality of TC and ElemenCount by calculating 2 scev expressions and subtracting them and testing the result for 0. Also a check for the base of the AddRec has been added now, so I think this addresses all comments.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D88086/new/

https://reviews.llvm.org/D88086

Files:
  llvm/lib/Target/ARM/MVETailPredication.cpp
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/tail-pred-basic.ll
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/tail-pred-const.ll
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/tail-pred-forced.ll

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