[PATCH] D22536: [LSV] Vectorize up to side-effecting instructions.

[Justin Lebar via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: asbirlea.
jlebar added subscribers: llvm-commits, arsenm.
Herald added subscribers: mzolotukhin, jholewinski.

Previously if we had a chain that contained a side-effecting
instruction, we wouldn't vectorize it at all.  Now we'll vectorize
everything that comes before the side-effecting instruction.

https://reviews.llvm.org/D22536

Files:
  lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
  test/Transforms/LoadStoreVectorizer/NVPTX/lit.local.cfg
  test/Transforms/LoadStoreVectorizer/NVPTX/merge-across-side-effects.ll

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