[Webkit-unassigned] [Bug 81583] New: Prediction propagation for UInt32ToNumber incorrectly assumes that outs outcome does not change throughout the fixpoint

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81583

           Summary: Prediction propagation for UInt32ToNumber incorrectly
                    assumes that outs outcome does not change throughout
                    the fixpoint
           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


That was true before the arithmetic node flags backward-flow was combined with the forward-flow of prediction propagaiton.  But it's not true anymore.

Patch forthcoming.

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