[PATCH] D22630: Loop rotation

[Aditya Kumar via llvm-commits]

hiraditya updated this revision to Diff 72332.
hiraditya added a comment.

Addressed Sebastian's comments.
Add metadata to loop once it has been rotated.
The metadata reflects how many times the loop was rotated.
Removes the metadata from the old loop header once the loop gets rotated.


https://reviews.llvm.org/D22630

Files:
  llvm/include/llvm/Transforms/Scalar.h
  llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
  llvm/lib/Transforms/Scalar/LoopRotation.cpp
  llvm/test/Analysis/GlobalsModRef/memset-escape.ll
  llvm/test/Analysis/ScalarEvolution/2012-03-26-LoadConstant.ll
  llvm/test/Transforms/LoopRotate/alloca.ll
  llvm/test/Transforms/LoopRotate/basic.ll
  llvm/test/Transforms/LoopRotate/dbgvalue.ll
  llvm/test/Transforms/LoopRotate/indirectbr-1.ll
  llvm/test/Transforms/LoopRotate/loop-rotate.ll
  llvm/test/Transforms/LoopRotate/multiple-exits-merge-phi.ll
  llvm/test/Transforms/LoopRotate/multiple-exits.ll
  llvm/test/Transforms/LoopRotate/nosimplifylatch.ll
  llvm/test/Transforms/LoopRotate/phi-duplicate.ll
  llvm/test/Transforms/LoopRotate/pr7447.ll
  llvm/test/Transforms/LoopRotate/preserve-loop-simplify.ll
  llvm/test/Transforms/LoopRotate/simplifylatch.ll
  llvm/test/Transforms/LoopSimplify/ashr-crash.ll
  llvm/test/Transforms/LoopVectorize/vect.omp.persistence.ll

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