Abstract

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 application-specific customization and dynamic optimizations. Benchmarks with the current prototype, which is almost entirely written in Java, have seen comparable benchmark results compared to traditional C-based JIT compilers. 1 Introduction Programming Languages which support features for high-degree of portability, such as Java, are becoming increasingly important today. Such languages typically employ architecture and operating system independent bytecoded intermediate program representation, and utilized Just-In-Time compilers (JITs), which compile parts of programs which require speedups into...

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