[PATCH] D73947: [ARM][MVE] LowOverheadLoops: DCE on the iteration count setup expression

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer updated this revision to Diff 242601.
SjoerdMeijer added a comment.

Thanks for looking and the suggestion. Added test case `it-block-random.mir` showed that I was missing a case: an instruction in the IT block not connected to the use-def chain, so fixed that.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73947/new/

https://reviews.llvm.org/D73947

Files:
  llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/dont-ignore-vctp.mir
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/it-block-chain.mir
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/it-block-itercount.mir
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/it-block-random.mir

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