[Webkit-unassigned] [Bug 162989] New: [DFG] AI should track ClassInfo by AbstractValue

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162989

            Bug ID: 162989
           Summary: [DFG] AI should track ClassInfo by AbstractValue
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: utatane.tea at gmail.com

AbstractValue should have ClassInfo that all the possible values belongs to.
ClassInfo offers hierarchical information. This can be leveraged like, merging two AbstractValue's ClassInfos into one lowest common ancestor.

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