[PATCH] D76766: [ARM][LowOverheadLoops] DoubleWidthResult instructions canGenerateZeros

[Sam Parker via Phabricator via llvm-commits]

samparker updated this revision to Diff 253115.
samparker added a comment.

- Made a helper
- Modified/added some comments.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76766/new/

https://reviews.llvm.org/D76766

Files:
  llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/vaddv.mir

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