[Webkit-unassigned] [Bug 72072] New: DFG does worse than the old JIT for virtual calls

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Nov 10 16:01:53 PST 2011


https://bugs.webkit.org/show_bug.cgi?id=72072

           Summary: DFG does worse than the old JIT for virtual calls
           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


The DFG calls to a C function to do virtual calls, while the old JIT calls a JIT-generated thunk.  The DFG should try to perform at least as well as the old JIT for virtual calls.

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