TVOC: A Translation Validator for Optimizing Compilers

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We describe a tool called TVOC, that uses the translation validation approach to check the validity of compiler optimizations: for a given source program, TVOC proves the equivalence of the source code and the target code produced by running the compiler. There are two phases to the verification process: the first phase verifies loop transformations using the proof rule permute; the second phase verifies structure-preserving optimizations using the proof rule Validate. Verification conditions are validated using the automatic theorem prover CVC Lite.