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Escape Analysis for the HotSpot Client CompilerProjects > Compiler and JVM Research at JKUIn this research project, we implemented a fast algorithm for escape analysis. It detects objects that are accessible only by a single method or thread. Its results are used to replace fields of objects with scalar variables, to allocate objects on the stack instead of the heap, and to remove synchronization. The produced machine code is smaller and executes faster because fewer objects are allocated on the heap and the garbage collector runs less frequently. Deoptimization is used to handle dynamic class loading. There are currently no plans to integrate this work into the product version, however it influenced the implementation of escape analysis for the server compiler. Publications
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