{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/81856"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/81856","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Explicit Software Speculation for Dynamic Language Runtimes","abstract":"I demonstrate that explicit speculation improves the performance of dynamic language implementations on existing managed runtimes by speculatively executing dynamic language code with a common case interpretation of the language semantics. I implement a variety of optimizations at a high level, maintaining correct execution without requiring the sophisticated static analysis, language-specific runtime profiling infrastructure or potentially intricate, low-level recovery code that would be otherwise necessary. 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