[PATCH] D12765: Allow vectorization of loops with induction post-inc expressions

[Jakub Kuderski via llvm-commits]

kuhar created this revision.
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This patch teaches the LoopVectorizer not to bailout on loops with induction post-inc expressions.
Example:
```
for (int i = x; i < n; ++i) *ptr++ = *p++;
puts(ptr); // outside use
```
Previously the vectorizer wasn't able to vectorize similar code.

Repository:
  rL LLVM

http://reviews.llvm.org/D12765

Files:
  include/llvm/Transforms/Utils/LoopUtils.h
  lib/Transforms/Utils/LoopUtils.cpp
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/post-incs.ll

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