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Static Data Flow Analysis of PL/I Programs with the PROBE System

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1 Author(s)
Sarraga, Ramon F. ; Department of Computer Science, General Motors Research Laboratories, Warren, MI 48090.

An experimental data flow analyzer for PL/I programs has been implemented within the PROBE system developed at the GM Research Laboratories. PROBE is an experimental software package that examines the internal structure of PL/I programs in order to expose error-prone design and programming features. This paper describes 1) the algorithms and data structures used by the data flow analyzer, 2) the salient aspects of PL/I usage in the analyzed production-level programs, and 3) the results of the data flow analysis.

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Software Engineering, IEEE Transactions on  (Volume:SE-10 ,  Issue: 4 )