OptimizerEval
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This code is provided under the LLVM license.  It was written by Preston
Briggs in his paper "Optimizer Evaulation."

See http://citeseer.nj.nec.com/rd/55104792%2C85455%2C1%2C0.25%2CDownload/http://citeseer.nj.nec.com/compress/0/papers/cs/4091/ftp:zSzzSzftp.cs.rice.eduzSzpubliczSzprestonzSzevalzSzevalopt.ps.gz/optimizer-evaluation.ps for more information.