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ECOOP and ISSTA 2021
Sun 11 - Sat 17 July 2021 Online
Tue 13 Jul 2021 14:40 - 15:00 at ICOOOLPS - ICOOOLPS

Unrestricted mutation of shared state is a source of many well-known problems. The predominant safe solutions are pure functional programming, which bans mutation outright, and flow sensitive type systems, which depend on sophisticated typing rules. Mutable value semantics is a third approach that bans sharing instead of mutation, thereby supporting part-wise in-place mutation and local reasoning, while maintaining a simple type system. In the purest form of mutable value semantics, references are second-class: they are only created implicitly, at function boundaries, and cannot be stored in variables or object fields. Hence, variables can never share mutable state.

Because references are often regarded as an indispensable tool to write efficient programs, it is legitimate to wonder whether such a discipline can compete other approaches. As a basis for answering that question, we demonstrate how a language featuring mutable value semantics can be compiled to efficient native code. This approach relies on stack allocation for static garbage collection and leverages runtime knowledge to sidestep unnecessary copies.

Tue 13 Jul

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

13:00 - 17:30
ICOOOLPSICOOOLPS at ICOOOLPS
13:00
5m
Other
Welcome
ICOOOLPS

13:05
25m
Talk
The Two Cultures of Language ImplementationInvited Talk
ICOOOLPS
Stephen Kell King's College London
13:30
20m
Paper
Naïve Transient Cast Insertion Isn’t (That) BadPaper
ICOOOLPS
P: Erin Greenwood-Thessman Victoria University of Wellington, Isaac Oscar Gariano Victoria University of Wellington, Richard Roberts Victoria University of Wellington, Stefan Marr University of Kent, Michael Homer Victoria University of Wellington, James Noble Victoria University of Wellington
DOI Pre-print
13:50
20m
Talk
Threaded Code Generation with a Meta-tracing JIT CompilerPosition Paper
ICOOOLPS
P: Yusuke Izawa Tokyo Institute of Technology, Hidehiko Masuhara Tokyo Institute of Technology, Carl Friedrich Bolz-Tereick , Youyou Cong Tokyo Institute of Technology
Pre-print
14:10
10m
Social Event
Break
ICOOOLPS

14:20
20m
Talk
Avoiding Monomorphisation Bottlenecks with Phase-based Splitting
ICOOOLPS
P: Sophie Kaleba University of Kent, Stefan Marr University of Kent, Richard Jones University of Kent
Pre-print
14:40
20m
Talk
Native Implementation of Mutable Value SemanticsPosition Paper
ICOOOLPS
P: Dimitri Racordon University of Geneva, Switzerland, Denys Shabalin EPFL, Switzerland, Dave Abrahams Google, Dan Zheng Purdue University, Google Brain, Brennan Saeta Google
Pre-print
15:00
20m
Talk
An Eclipse OMR-based Garbage Collector for Python
ICOOOLPS
P: Joannah Nanjekye University of New Brunswick, David Bremner University of New Brunswick, Aleksandar Micic IBM, Canada
15:20
20m
Social Event
Break
ICOOOLPS

15:40
20m
Talk
Userfault Objects: Transparent Programmable MemoryPosition Paper
ICOOOLPS
P: Konrad Siek Czech Technical University in Prague, Colette Kerr ČVUT
Pre-print
16:00
20m
Talk
The Strange and Wondrous Life of Functions in Ř
ICOOOLPS
Jan Ječmen , Olivier Flückiger Northeastern University, Sebastián Krynski Czech Technical University in Prague, P: Jan Vitek Northeastern University / Czech Technical University
File Attached
16:20
20m
Talk
Non-Intrusive Migration from Lazy to Eager Evaluation
ICOOOLPS
P: Aviral Goel Northeastern University, Jan Vitek Northeastern University / Czech Technical University
16:40
10m
Social Event
Break
ICOOOLPS

16:50
20m
Talk
A Framework and DSL for Distributed, Energy-constrained, and Time-sensitive Applications
ICOOOLPS
P: Kyle Liang Carnegie Mellon University, Reese Grimsley CMU, Eve Hu CMU, Edward Andert Arizona State University, Mohammad Khayatian Arizona State University, Aviral Shrivastava Arizona State University, Carlee Joe-Wong CMU, Jonathan Aldrich Carnegie Mellon University, Bob Iannucci CMU
17:10
20m
Talk
Fuel: A Compiler Framework for Safe Memory ManagementPosition Paper
ICOOOLPS
Dimitri Racordon University of Geneva, Switzerland, P: Aurélien Coet University of Geneva, Switzerland, Didier Buchs University of Geneva, Switzerland
Pre-print