Bug 156611 - AbstractInterpreter should be more knowledgeable about the delete by id operation.
Summary: AbstractInterpreter should be more knowledgeable about the delete by id opera...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-04-14 16:27 PDT by Keith Miller
Modified: 2016-04-14 16:27 PDT (History)
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Description Keith Miller 2016-04-14 16:27:52 PDT 
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.