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ECOOP 2021
Sun 11 - Sat 17 July 2021 Online
co-located with ECOOP and ISSTA 2021
Fri 16 Jul 2021 03:00 - 03:20 at ECOOP 1 - Program Analysis / Runtimes (time band 2) Chair(s): Werner Dietl
Fri 16 Jul 2021 10:00 - 10:20 at ECOOP 1 - Types / Program Analysis (time band 3) Chair(s): George Fourtounis

Object-sensitive pointer analysis for an object-oriented program can be accelerated if context-sensitivity can be selectively applied to some precision-critical variables/objects in the program. Existing pre-analyses, which are performed to make such selections, either preserve precision but achieve limited speedups by reasoning about all the possible value flows in the program conservatively or achieve greater speedups but sacrifice precision (often unduly) by examining only some but not all the value flows in the program heuristically. In this paper, we introduce a new approach, named \tool, that represents a sweet spot between the two existing ones, as it is designed to enable object-sensitive pointer analysis to run significantly faster than the former approach and achieve significantly better precision than the latter approach. \tool is simple, lightweight yet effective due to two novel aspects in its design. First, we exploit a key observation that some precision-uncritical objects can be approximated based on the object-containment relationship pre-established (by applying Andersen’s analysis). This approximation introduces a small degree yet the only source of imprecision into \tool. Second, leveraging this initial approximation, we introduce a simple DFA to reason about object reachability for a method intra-procedurally from its entry to its exit along all the possible value flows established by its statements to finalize its precision-critical variables/objects identified. We have validated \tool with a soon-to-be-open-sourced implementation in \Soot against the state of the art using a set of 12 popular Java benchmarks and applications.

Fri 16 Jul

Displayed time zone: Brussels, Copenhagen, Madrid, Paris change

02:00 - 03:20
Program Analysis / Runtimes (time band 2)ECOOP Technical Papers at ECOOP 1
Chair(s): Werner Dietl University of Waterloo
02:00
20m
Talk
Gradual Program Analysis for Null Pointers
ECOOP Technical Papers
Sam Estep Carnegie Mellon University, Jenna Wise Carnegie Mellon University, Jonathan Aldrich Carnegie Mellon University, Éric Tanter University of Chile, Johannes Bader Jane Street, Joshua Sunshine Carnegie Mellon University
DOI Pre-print Media Attached File Attached
02:20
20m
Talk
Best-Effort Lazy Evaluation for Python Software Built On APIs
ECOOP Technical Papers
Guoqiang Zhang North Carolina State University, Xipeng Shen North Carolina State University
DOI
02:40
20m
Talk
Lifted Static Analysis of Dynamic Program Families by Abstract Interpretation
ECOOP Technical Papers
Aleksandar S. Dimovski Mother Teresa University, Skopje, Sven Apel Saarland University
DOI
03:00
20m
Talk
Accelerating Object-Sensitive Pointer Analysis by Exploiting Object Containment and Reachability
ECOOP Technical Papers
Dongjie He University of New South Wales, Jingbo Lu UNSW Sydney, Yaoqing Gao Huawei Canada, Jingling Xue UNSW
DOI Pre-print
10:00 - 11:20
Types / Program Analysis (time band 3)ECOOP Technical Papers at ECOOP 1
Chair(s): George Fourtounis University of Athens
10:00
20m
Talk
Accelerating Object-Sensitive Pointer Analysis by Exploiting Object Containment and Reachability
ECOOP Technical Papers
Dongjie He University of New South Wales, Jingbo Lu UNSW Sydney, Yaoqing Gao Huawei Canada, Jingling Xue UNSW
DOI Pre-print
10:20
20m
Talk
Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow AnalysisDistinguished Paper
ECOOP Technical Papers
Philipp Dominik Schubert Heinz Nixdorf Institut, Paderborn University, Ben Hermann Technical University Dortmund, Eric Bodden University of Paderborn; Fraunhofer IEM
Link to publication DOI Pre-print
10:40
20m
Talk
Scope States: Guarding Safety of Name Resolution in Parallel Type Checkers
ECOOP Technical Papers
Hendrik van Antwerpen Delft University of Technology, Eelco Visser Delft University of Technology
DOI File Attached
11:00
20m
Talk
Idris 2: Quantitative Type Theory in Practice
ECOOP Technical Papers
Edwin Brady University of St Andrews, UK
DOI Media Attached