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Subtype Expansion models objects at a per-type granularity, enabling a form of subtype-restricted equality constraints, while Mutation Tracking uses a simple effect analysis to avoid a class of false aliases induced by the bidirectional nature of equality constraints. The utility and costs of these techniques are demonstrated in a context-sensitive interprocedural optimization implemented in the Marmot native Java compiler.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We present two new, orthogonal techniques for improving the precision of equality-based dataflow analyses. Subtype Expansion models objects at a per-type granularity, enabling a form of subtype-restricted equality constraints, while Mutation Tracking uses a simple effect analysis to avoid a class of false aliases induced by the bidirectional nature of equality constraints. The utility and [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"user_nicename","value":"erikruf","user_id":"31758"}],"msr_publishername":"Springer-Verlag","msr_publisher_other":"","msr_booktitle":"Static Analysis Symposium (SAS '02)","msr_chapter":"","msr_edition":"Static Analysis Symposium (SAS '02)","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"Static Analysis Symposium (SAS 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