[PATCH] [Patch] Loop Interchange Pass

[Karthik Bhat]

Hi Hal,
Sorry for the delay in followup. I was on a vaction.
Please find the updated and rebased patch. Added test cases as per your suggestion. I also verified the o/p of the programs on randomly generated array and o/p's are same before and after interchange in cases were loops are interchanged.

I will start to work on generic version of loop interchange (i.e. to support loops of any depth) after the initial version is committed.

Please let me know your inputs on this. Thanks again for your time and review. I really appreciate your help.

Regrads
Karthik Bhat


http://reviews.llvm.org/D7499

Files:
  include/llvm/InitializePasses.h
  include/llvm/LinkAllPasses.h
  include/llvm/Transforms/Scalar.h
  lib/Transforms/Scalar/CMakeLists.txt
  lib/Transforms/Scalar/LoopInterchange.cpp
  lib/Transforms/Scalar/Scalar.cpp
  test/Transforms/LoopInterchange/currentLimitation.ll
  test/Transforms/LoopInterchange/interchange.ll
  test/Transforms/LoopInterchange/vectorize.ll

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