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Sharing Revisited (AGP'97)

[Page last updated on "January 13, 2005, 15:31:42".]

Roberto Bagnara, Patricia M. Hill, and Enea Zaffanella

Abstract

Although the usual goal of sharing analysis is to detect which pairs of variables share, the standard choice for sharing analysis is a domain that characterizes set-sharing. In this paper, we question, apparently for the first time, whether this domain is over-complex for pair-sharing analysis. We show that the answer is yes . By defining an equivalence relation over the set-sharing domain we obtain a simpler domain, reducing the complexity of the abstract unification procedure. We present preliminary experimental results, showing that, in practice, our domain compares favorably with the set-sharing one over a wide range of benchmark programs.


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© Enea Zaffanella
enea.zaffanella@unipr.it

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