[Webkit-unassigned] [Bug 20889] New: cache the last function called

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20889

           Summary: cache the last function called
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ggaren at apple.com


Here is a work-in-progress patch that caches the last function called at a call
site. It's a major regression on v8-crypto because it doesn't have a generic
case to handle polymorphic call sites. Also, it's not implemented in CTI yet.

We can use this kind of caching as a framework for other kinds of
optimizations, like knowing that the caller uses the right number of arguments.


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