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  • Chris Lattner's avatar
    Refactor this code substantially with the following improvements: · eaf24725
    Chris Lattner authored
      1. We only analyze instructions once, guaranteed
      2. AnalyzeGetElementPtrUsers has been ripped apart and replaced with
         something much simpler.
    
    The next step is to handle expressions that are not all indvar+loop-invariant
    values (e.g. handling indvar+loopvariant).
    
    llvm-svn: 22649
    eaf24725
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