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DOI: 10.4230/OASIcs.WCET.2005.816
URN: urn:nbn:de:0030-drops-8163
URL: http://drops.dagstuhl.de/opus/volltexte/2007/816/
Chen, Ting ; Mitra, Tulika ; Roychoudhury, Abhik ; Suhendra, Vivy

Exploiting Branch Constraints without Exhaustive Path Enumeration

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Abstract

Statically estimating the worst case execution time (WCET) of a program is important for real-time software. This is difficult even in the programming language level due to the inherent difficulty in detecting and exploiting infeasible paths in a program’s control flow graph. In this paper, we propose an efficient method to exploit infeasible path information for WCET estimation of a loop without resorting to exhaustive path enumeration. The ef- ficiency of our approach is demonstrated with a real-life control-intensive program.

BibTeX - Entry

@InProceedings{chen_et_al:DSP:2007:816,
  author =	{Ting Chen and Tulika Mitra and Abhik Roychoudhury and Vivy Suhendra},
  title =	{Exploiting Branch Constraints without Exhaustive Path Enumeration},
  booktitle =	{5th Intl. Workshop on Worst-Case Execution Time (WCET) Analysis},
  year =	{2007},
  editor =	{Reinhard Wilhelm},
  publisher =	{Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, Germany},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2007/816},
  annote =	{Keywords: WCET, infeasible path, branch constraints},
}

Keywords: WCET, infeasible path, branch constraints
Seminar: 5th International Workshop on Worst-Case Execution Time Analysis (WCET'05)
Issue date: 2007
Date of publication: 29.03.2007

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