Titlebook: Variations on Constants; Flow Analysis of Seq Markus Müller-Olm Book 2006 Springer-Verlag Berlin Heidelberg 2006 Automat.Processing.algorit

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1. Introduction,value at run-time by this value. This transformation can both speed up execution and reduce code size by replacing a computation or memory access by a load-constant instruction. Often constant propagation enables powerful further program transformations. An example is branch elimination: if the cond

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7. Dependence Traces,f interest; when control is at another program point ., which variables y may influence the value of . at .? Clearly, this information can be derived from the set of bridging runs from . to . and we have a constraint system characterizing this set (cf. Chapter 5.5). We would like to compute the abov

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10. Conclusion,an come to precisely defined, weaker analysis problems that can be solved exactly. By classifying such problems with the means provided by the theory of computational complexity, we hope to shed light on the trade-off between efficiency and precision for approximate analyzers and to uncover potentia

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A. A Primer on Constraint-Based Program Analysis,e describe the idea underlying constraint-based program analysis. As a running example we use forward dataflow analysis in (non-procedural, sequential) flow graphs and consider constant propagation in particular.