The ACM SIGPLAN Workshop on Partial Evaluation and Program Manipulation (PEPM), which has a history going back to 1991 and has co-located with POPL every year since 2006, originates in the discoveries of practically useful automated techniques for evaluating programs with only partial input. Over the years, the scope of PEPM has expanded to include a variety of research areas centred around the theme of semantics-based program manipulation — the systematic exploitation of treating programs not only as subject to black-box execution, but also as data structures that can be generated, analysed, and transformed while establishing or maintaining important semantic properties.


In addition to the traditional PEPM topics (see below), PEPM 2023 welcomes submissions in new domains, in particular:

  • Semantics based and machine-learning based program synthesis and program optimisation.

  • Modelling, analysis, and transformation techniques for distributed and concurrent protocols and programs, such as session types, linear types, and contract specifications.

More generally, topics of interest for PEPM 2023 include, but are not limited to:

  • Program and model manipulation techniques such as: supercompilation, partial evaluation, fusion, on-the-fly program adaptation, active libraries, program inversion, slicing, symbolic execution, refactoring, decompilation, and obfuscation.

  • Techniques that treat programs/models as data objects including metaprogramming, generative programming, embedded domain-specific languages, program synthesis by sketching and inductive programming, staged computation, and model-driven program generation and transformation.

  • Program analysis techniques that are used to drive program/model manipulation such as: abstract interpretation, termination checking, binding-time analysis, constraint solving, type systems, automated testing and test case generation.

  • Application of the above techniques including case studies of program manipulation in real-world (industrial, open-source) projects and software development processes, descriptions of robust tools capable of effectively handling realistic applications, benchmarking. Examples of application domains include legacy program understanding and transformation, DSL implementations, visual languages and end-user programming, scientific computing, middleware frameworks and infrastructure needed for distributed and web-based applications, embedded and resource-limited computation, and security.

This list of categories is not exhaustive, and we encourage submissions describing new theories and applications related to semantics-based program manipulation in general. If you have a question as to whether a potential submission is within the scope of the workshop, please contact the programme co-chairs, Edwin Brady (ecb10@st-andrews.ac.uk) and Jens Palsberg (palsberg@ucla.edu)

AUTHORS TAKE NOTE: The official publication date is the date the proceedings are made available in the ACM Digital Library. This date may be up to two weeks prior to the first day of the conference. The official publication date affects the deadline for any patent filings related to published work.

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Tue 17 Jan

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09:00 - 10:30
Keynote + 1 talkPEPM at Scollay
Chair(s): Jens Palsberg University of California, Los Angeles (UCLA)
Fast Cryptographic Code via Partial Evaluation
Adam Chlipala Massachusetts Institute of Technology
Towards Type Debugging using Partial Evaluation
Kanae Tsushima National Institute of Informatics, Japan, Robert Glück University of Copenhagen
11:00 - 12:30
3 talksPEPM at Scollay
Chair(s): Casper Bach Poulsen Delft University of Technology
Semantic Transformation Framework for Rewriting Rules
Jihee Park KAIST, Jaemin Hong KAIST, Sukyoung Ryu KAIST
Symbolic Execution of Hadamard-Toffoli Quantum Circuits
Jacques Carette McMaster University, Gerardo Ortiz Indiana University, Amr Sabry Indiana University
Generating Programs for Polynomial Multiplication with Correctness Assurance
Ryo Tokuda University of Tsukuba, Yukiyoshi Kameyama University of Tsukuba
14:00 - 15:30
Industry presentation + 1 talkPEPM at Scollay
Chair(s): Sukyoung Ryu KAIST
Industry talk
MATLAB Coder: Partial Evaluation in Practice
Denis Gurchenkov MathWorks, Fred Smith MathWorks
Modular Construction of Multi-sorted Free Extensions
Guillaume Allais University of St Andrews, Nathan Corbyn University of Oxford, Ohad Kammar University of Edinburgh, Nachiappan Valliappan Chalmers University of Technology, Sam Lindley University of Edinburgh, Jeremy Yallop University of Cambridge
File Attached
16:00 - 17:30
2 online talksPEPM at Scollay
Chair(s): Edwin Brady University of St Andrews, UK
Efficient Embedding of Strategic Attribute Grammars via MemoizationRemote
José Nuno Macedo University of Minho, Emanuel Rodrigues HASLab & INESC TEC, University of Minho, Marcos Viera University of the Republic, Uruguay, João Saraiva
Towards a Reflection for Effect HandlersRecorded
Youyou Cong Tokyo Institute of Technology, Kenichi Asai Ochanomizu University
Day closing
Wrap up
Jens Palsberg University of California, Los Angeles (UCLA), Edwin Brady University of St Andrews, UK

Call for Papers

Submission categories and guidelines

Two kinds of submissions will be accepted:

Regular Research Papers should describe new results, and will be judged on originality, correctness, significance, and clarity. Regular research papers must not exceed 12 pages.

Short Papers may include tool demonstrations and presentations of exciting if not fully polished research, and of interesting academic, industrial, and open-source applications that are new or unfamiliar. Short papers must not exceed 6 pages.

References and appendices are not included in page limits. Appendices may not be read by reviewers. Both kinds of submissions should be typeset using the two-column ‘sigplan’ sub-format of the new ‘acmart’ format available at:


and submitted electronically via HotCRP:


Reviewing will be single-blind.

Submissions are welcome from PC members (except the two co-chairs).

Accepted regular research papers will appear in formal proceedings published by ACM, and be included in the ACM Digital Library. Accepted short papers do not constitute formal publications and will not appear in the proceedings.

At least one author of each accepted contribution must attend the workshop (physically or virtually) to present the work. In the case of tool demonstration papers, a live demonstration of the described tool is expected.

Important dates

  • Paper submission deadline : Tuesday 18th October 2022 (AoE) (EXTENDED)
  • Author notification : Tuesday 15th November 2022 (AoE) (EXTENDED)
  • Workshop : Monday 16th January 2023 to Tuesday 17th January 2023
  • Invited speakers : Adam Chlipala (MIT), tba

Best paper award

PEPM 2023 continues the tradition of a Best Paper award. The winner will be announced at the workshop.