[PATCH] Add optimization remarks to the loop unroller and vectorizer.

[Zinovy Nis]

You don't need to add metadata to 

  test/Transforms/LoopVectorize/X86/vectorization-remarks.ll



And if optimization remarks are only emitted in DEBUG (or RELEASE+ASSERTS) build, please add the following line in the beginning of your file. Thanks.


  REQUIRES: asserts

http://reviews.llvm.org/D3456