[Webkit-unassigned] [Bug 16472] New: Perform an AST transform to swap out non-break/continue checking loops

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=16472

           Summary: Perform an AST transform to swap out non-break/continue
                    checking loops
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eric at webkit.org
                CC: mjs at apple.com, ggaren at apple.com


Perform an AST transform to swap out non-break/continue checking loops

We don't need to check break/continue returns at runtime if we can scan the
kids of a loop node after the parse to insure that none of the kids contain a
break or continue node.

This could be at least a small speedup in SunSpider, and would probably be
pretty straightforward to implement.


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