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Algorithms for Infeasible Path Calculation
Note:
Satellite Workshop held in conjunction with the 18th International Real-Time Systems Conference (ECRTS2006)
Publication Type:
Conference/Workshop Paper
Venue:
Sixth International Workshop on Worst-Case Execution Time Analysis, (WCET2006)
Abstract
Static Worst-Case Execution Time (WCET) analysis is a technique to
derive upper bounds for the execution times of programs. Such bounds
are crucial when designing and verifying real-time systems. A
key component in static WCET analysis is to derive flow information,
such as loop bounds and infeasible paths.Such flow information can be provided as either as annotations by the
user, can be automatically calculated by a flow analysis, or by a
combination of both. To make the analysis as simple, automatic and
safe as possible, this flow information should be calculated
automatically with no or very limited user interaction.In this paper we present three novel algorithms to calculate
infeasible paths. The algorithms are all designed to be simple and
efficient, both in terms of generated flow facts and in analysis
running time. The algorithms have been implemented and tested for a set of
WCET benchmarks programs.
Bibtex
@inproceedings{Gustafsson953,
author = {Jan Gustafsson and Andreas Ermedahl and Bj{\"o}rn Lisper},
title = {Algorithms for Infeasible Path Calculation},
note = {Satellite Workshop held in conjunction with the 18th International Real-Time Systems Conference (ECRTS2006)},
month = {July},
year = {2006},
booktitle = {Sixth International Workshop on Worst-Case Execution Time Analysis, (WCET2006)},
url = {http://www.es.mdu.se/publications/953-}
}