Experience compiling Fortran to program dependence graphs

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Abstract
The program dependence graph (PDG) is being used in research projects for compilation to parallel architectures, program version integration and program semantics. This paper describes the methods used in a prototype Fortran‐to‐PDG translator called the PDG Testbed. Implementation decisions and details of the PDG Testbed project are described as a complement to the formal papers detailing the abstract PDG. In addition, experimental results are given that show the storage consumption for a PDG relative to a conventional internal representation as well as execution times for several analysis and optimization steps.

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