[Webkit-unassigned] [Bug 88362] New: DFG CFG simplification should not attempt to deref nodes inside of an unreachable subgraph

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=88362

           Summary: DFG CFG simplification should not attempt to deref
                    nodes inside of an unreachable subgraph
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fpizlo at apple.com


This is not only dangerous (you might go down an infinite deref recursion if you hit a dead cycle) but entirely unnecessary (the subgraph is going to get deleted anyway regardless of ref counts).

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