[PATCH] D42309: [LV] Use Demanded Bits and ValueTracking for reduction type-shrinking

[Chad Rosier via Phabricator via llvm-commits]

mcrosier updated this revision to Diff 132601.
mcrosier added a comment.

Address Diego's comments.


https://reviews.llvm.org/D42309

Files:
  include/llvm/Transforms/Utils/LoopUtils.h
  lib/Transforms/Utils/LoopUtils.cpp
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/reduction-small-size.ll

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