[PATCH] D80516: [ConstantFolding] Constant folding for integer vector reduce intrinsics

[Dave Green via Phabricator via llvm-commits]

dmgreen updated this revision to Diff 266122.
dmgreen added a comment.

> Do we need to explicitly handle an undef vector here?

Do you mean an undef vector or a vector with undef's in it? I can change either if you think it is worth it. I didn't so far because I couldn't find anything to automatically handle it, and didn't want to replicate the logic here if I could help it.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80516/new/

https://reviews.llvm.org/D80516

Files:
  llvm/lib/Analysis/ConstantFolding.cpp
  llvm/test/Analysis/ConstantFolding/vecreduce.ll
  llvm/test/Transforms/LoopVectorize/reduction-inloop.ll

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