HHVM JIT: a profile-guided, region-based compiler for PHP and Hack

Profile-Guided Compiler Optimizations

pylibjit: A JIT Compiler Library for Python

We present pylibjit, a Python library for generating machine code at load time or run time. The library can be used for dynamic code generation, although it is mainly aimed at optimizing compilation of existing Python function definitions. Python functions can be compiled by simply annotating them with a decorator specifying data types. The pylibjit compiler takes advantage of this type informa...

A Retargetable JIT Compiler for Java

Interpreted Java has poor performance. Therefore most Java Virtual Machines (JVM) contain a just-in-time compiler (JIT) that compiles the bytecode to the processor’s native instruction set. Most of these compilers are written in C and tightly integrated with the JVM. We describe a JIT compiler that is written in Java and retargetable to a different JVMs and CPUs.

OpenJIT—A Reflective Java JIT Compiler

The so-called ‘Open Compilers’ is a technique to incorporate various self-descriptive modules for language customization and optimization based on computational reflection. We apply the open compiler technique to a Java Just-In-Time compiler to develop the OpenJIT compiler, which allows class-specific customization and optimization, fostering research of new compilation techniques such as appli...

Design and Implementation of a PHP Compiler Front-end

This technical report describes the design and implementation of a front-end for phc, the open source PHP compiler. This front-end provides an excellent basis for developing tools which process PHP source code, and consists of a well-defined Abstract Syntax Tree (AST) specification for the PHP language, a lexical analyser and parser which construct the AST for a given script, and a visitor and ...