[PATCH] D59710: [SLP] remove lower limit for forming reduction patterns

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 228118.
spatel added a comment.

Patch updated:
Limit the extra analysis to 2-way reductions only for efficiency (to save compile-time). This converts the more general minimum-width parameter from the earlier rev to a boolean flag.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59710/new/

https://reviews.llvm.org/D59710

Files:
  llvm/include/llvm/Transforms/Vectorize/SLPVectorizer.h
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Feature/weak_constant.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduction2.ll

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