[PATCH] D22119: Extended LoadStoreVectorizer to vectorize subchains.

[Alina Sbirlea via llvm-commits]

asbirlea created this revision.
asbirlea added reviewers: llvm-commits, jlebar, arsenm.
Herald added a subscriber: mzolotukhin.

LSV used to abort vectorizing a chain for interleaved load/store accesses that alias.
Allow a valid prefix of the chain to be vectorized, mark just the prefix and retry vectorizing the remaining chain.

http://reviews.llvm.org/D22119

Files:
  lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
  test/Transforms/LoadStoreVectorizer/X86/subchain-interleaved.ll

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