[Webkit-unassigned] [Bug 144369] New: FTL SwitchString slow case should use address-of-label

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=144369

            Bug ID: 144369
           Summary: FTL SwitchString slow case should use address-of-label
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

Currently the FTL SwitchString slow case is done by having us emit IR to switch on the branch offset that the runtime call finds in the jump table's hash map. But we could just have the IR jump to the address returned from the runtime call, and populate the hash map with addresses of labels.

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