[Webkit-unassigned] [Bug 68784] New: DFG static prediction code is no longer needed and should be removed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=68784

           Summary: DFG static prediction code is no longer needed and
                    should be removed
           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 originally used static predictions to drive speculation and optimization.  But now the DFG has value profiles, rare case profiles, and the old JIT's structure stub infos and method call link infos to dynamic predictions, which have been found to do a better job of driving speculation and optimization.  At this point, the static prediction code is just getting in the way and should be removed.

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.