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clang-p2996/llvm/lib/Transforms/Utils/LoopSimplify.cpp
Duncan Sands aef146b890 Factor code for testing whether replacing one value with another 
preserves LCSSA form out of ScalarEvolution and into the LoopInfo
class.  Use it to check that SimplifyInstruction simplifications
are not breaking LCSSA form.  Fixes PR8622.

llvm-svn: 119727
2010-11-18 19:59:41 +00:00

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