[PATCH] D28830: [LV] Allow reductions that have several uses outside the loop

[Michael Kuperstein via Phabricator via llvm-commits]

mkuper created this revision.
Herald added a subscriber: mzolotukhin.

We currently check whether a reduction has a single outside user. We don't really need to require that - we just need to make sure a single value is used externally. The number of external users of that value shouldn't actually matter.


https://reviews.llvm.org/D28830

Files:
  lib/Transforms/Utils/LoopUtils.cpp
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/reduction.ll

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