Justin Bogner 6291b587b6 LoopRotate: Convert the methods of LoopRotate to utility functions. NFC ...

This moves the actual work to do loop rotation into standalone
functions with the analysis results they need passed in as arguments,
leaving the class itself as a relatively simple shim. This will make
the functions easy to reuse when we're ready to port this
transformation to the new pass manager.

llvm-svn: 255574

2015-12-14 23:22:48 +00:00

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