Parallel support for source code analysis and modification

Tools that analyze and enhance large-scale software systems using symbolic reasoning are computationally expensive, and yet processors are cheap. We believe that enabling tools with parallel foundations will lead to qualitatively more useful tools. We have implemented a large-scale industrial-strength program transformation system, the DMS Software Reengineering Toolkit, entirely in PARLANSE, a new parallel language. PARLANSE provides support for irregular fine-grain parallelism with zero-cost exception handling. This paper sketches the motivation for PARLANSE, its parallelism support and how it is used in a number of DMS-based applications, including parallel rewriting and attribute evaluation.

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