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Just-in-time performance without warm-up

Publications associées (92)

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Compile-Time Type-Driven Data Representation Transformations in Object-Oriented Languages

Vlad Ureche

High-level languages allow programmers to express data structures and algorithms that abstract over the type of data they handle. This improves code reuse and makes it possible to develop general-purpose libraries. Yet, data abstractions slow down program ...

EPFL2015

Common Subexpression Elimination in Dotty

Martin Odersky, Dmytro Petrashko, Allan Vincent Roger Renucci

Common subexpression elimination is a well-known compiler optimisa- tion that improves running time of compiled applications by avoiding the repetition of the same computation. Although it has been implemented on a low level such as bytecode, it misses mul ...

2015

Improving the Interoperation between Generics Translations

Martin Odersky, Nicolas Alexander Stucki, Vlad Ureche, Romain Michel Beguet, Milos Stojanovic

Generics on the Java platform are compiled using the erasure transformation, which only supports by-reference values. This causes slowdowns when generics operate on primitive types, such as integers, as they have to be transformed into reference-based obje ...

ACM2015

Developing Verified Software Using Leon

Viktor Kuncak

We present Leon, a system for developing functional Scala programs annotated with contracts. Contracts in Leon can themselves refer to recursively defined functions. Leon aims to find counterexamples when functions do not meet the specifications, and proof ...

Springer-Verlag Berlin2015

Fold-based fusion as a library: a generative programming pearl

Sandro Stucki, Manohar Jonnalagedda

Fusion is a program optimisation technique commonly implemented using special-purpose compiler support. In this paper, we present an alternative approach, implementing fold-based fusion as a standalone library. We use staging to compose operations on folds ...

ACM Press2015

Macros in sbt: Problem Solved!

Eugene Burmako, Martin Nicolas Duhem

In the previous report, we described how incremental compilation was made more complicated when macro-enabled programs are involved, and we implemented the foundations of the support for metaprograms in sbt, a build tool and incremental compiler for Scala. ...

2015

Surgical Precision JIT Compilers

Tiark Rompf, Hassan Chafi

Just-in-time (JIT) compilation of running programs provides more optimization opportunities than offline compilation. Modern JIT compilers, such as those in virtual machines like Oracle's HotSpot for Java or Google's V8 for JavaScript, rely on dynamic prof ...

Assoc Computing Machinery2014

Scala AST Persistence

Adrien Ghosn, Eugene Burmako, Mathieu Baptiste Demarne

The Scala compiler uses ASTs (abstract syntax trees) as an intermediate representation before generating bytecode. With the development of Scala macros which expand trees at compile time, being able to access, modify and recompose ASTs within the compilati ...

2014

ScalaDyno: Making Name Resolution and Type Checking Fault-tolerant

Martin Odersky, Vlad Ureche, Cédric Bastin

The ScalaDyno compiler plugin allows fast prototyping with the Scala programming language, in a way that combines the benefits of both statically and dynamically typed languages. Static name resolution and type checking prevent partially-correct code from ...

ACM2014

Improving Human-Compiler Interaction Through Customizable Type Feedback

Martin Odersky, Hubert Plociniczak

Type errors reported by compilers can sometimes be cryptic, or difficult to understand. In this paper, we propose a type debugging framework that exposes a high-level representation of the typechecking decision-making process that users normally do not hav ...

2014