Code motion techniques are integrated in many optimizing production and research compilers. They are still a major topic of ongoing research in program optimization, but traditional methods are restricted by a narrow focus on their immediate effects. A more ambitious approach is to investigate the interdependencies between distinct component transformations. This monograph provides a comprehensive account of the methods most accepted in practice for program analysis and program transformation for imperative languages. It also develops a scenario, systematically and step by step, which overcomes the structural restrictions that had previously long resisted attack. The author presents formal proofs for all the steps leading to this breakthrough, though the reader may skip the proofs and consult the technical details as needed yet still enjoy a smooth introduction to the central principles of code motion.

Reinhard Wilhelm's career in Computer Science spans more than a third of a century. This Festschrift volume, published to honor him on his 60th Birthday on June 10, 2006, includes 15 refereed papers by leading researchers, his graduate students and research collaborators, as well as current and former colleagues, who all attended a celebratory symposium held at Schloss Dagstuhl, Germany.

This book constitutes the refereed proceedings of the 5th International Symposium on Static Analysis, SAS'98, held in Pisa, Italy, in September 1998. The 20 revised full papers presented were carefully reviewed and selected from a total of 48 submissions. Also included is an invited tutorial. The papers are organized in topical sections on data-flow analysis, logic programming, concurrency, abstract domains, partial evaluation, type inference, and optimization. The invited tutorial by David Schmidt and Bernhard Steffen is entitled "data-flow analysis as model checking of abstract interpretations".

The two-volume set originates from the Advanced Course on Petri Nets held in Dagstuhl, Germany in September 1996; beyond the lectures given there, additional chapters have been commissioned to give a well-balanced presentation of the state of the art in the area. Together with its companion volume "Lectures on Petri Nets I: Basic Models" this book is the actual reference for the area and addresses professionals, students, lecturers, and researchers who are - interested in systems design and would like to learn to use Petri nets familiar with subareas of the theory or its applications and wish to view the whole area - interested in learning about recent results presented within a unified framework - planning to apply Petri nets in practical situations - interested in the relationship of Petri nets to other models of concurrent systems.

Computers are gaining more and more control over systems that we use or rely on in our daily lives, privately as well as professionally. In safety-critical applications, as well as in others, it is of paramount importance that systems controled by a computer or computing systems themselves reliably behave in accordance with the specification and requirements, in other words: here correctness of the system, of its software and hardware is crucial. In order to cope with this callenge, software engineers and computer scientists need to understand the foundations of programming, how different formal theories are linked together, how compilers correctly translate high-level programs into machine code, and why transformations performed are justifiable. This book presents 17 mutually reviewed invited papers organized in sections on methodology, programming, automation, compilation, and application.

Starting from the intraprocedural basic case, this monograph focuses on interprocedural optimization. It emphasizes the analogies and essential differences between intraprocedural and interprocedural optimization, and offers cookbook style support for constructing the underlying algorithms. It is aimed at compiler constructors and researchers interested in the systematic transfer of intraprocedural optimizations to the interprocedural setting, as well as students seeking a gentle introduction to the field.