[Webkit-unassigned] [Bug 20815] New: 'arguments' object creation is non-optimal

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20815

           Summary: 'arguments' object creation is non-optimal
           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: cwzwarich at uwaterloo.ca
OtherBugsDependingO 20813
             nThis:


The V8 Raytrace benchmark depends quite a bit on the creation of the arguments
object. The V8 implementors deliberately deviated from the language spec on
this issue, so that writing to the arguments object does not affect the actual
function arguments, only other uses of the arguments object. This would allow
us to avoid creating an activation for every function that uses the arguments
object, so we should consider going with them on this spec deviation.


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