[PATCH] D86074: [ARM][MVE] Tail-predication: check get.active.lane.mask's TC value

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer updated this revision to Diff 290736.
SjoerdMeijer retitled this revision from "[ARM][MVE] Tail-predication: check get.active.lane.mask's BTC value" to "[ARM][MVE] Tail-predication: check get.active.lane.mask's TC value".
SjoerdMeijer edited the summary of this revision.
SjoerdMeijer added a reviewer: samtebbs.
SjoerdMeijer added a comment.

This is a (partial) rewrite of the patch after we changed the semantics of get.active.lane.mask to accept the loop tripcount as its second argument, and not the backedge-taken count. This now implements several checks to see if the tripcount belongs to this loop.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86074/new/

https://reviews.llvm.org/D86074

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

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