156611 2016-04-14 16:27:52 -0700 AbstractInterpreter should be more knowledgeable about the delete by id operation. 2016-04-14 16:27:52 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 1 keith_miller webkit-unassigned oldest_to_newest 1183940 0 keith_miller 2016-04-14 16:27:52 -0700 Currently the AbstractInterpreter assumes that delete will clobber the world. It could notice that for the set of structures that can reach the delete node the identifier to delete will be a miss.