[PATCH] Extend LoopVectorizationLegality::isConsecutivePtr to handle multiple level GEPs

[Wei Mi]

> I assume that since you found that limitation, you have a test case that exposes it. Could you add the test case to the patch please?


I add the testcase which is the same one as test/Transforms/InstCombine/gep-merge1.ll in http://reviews.llvm.org/D9865.

Thanks,
Wei.


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D10281

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/pr23580.ll

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