[Webkit-unassigned] [Bug 144086] New: Force SetLocals live the same way that we force MovHinted Nodes live - by using bytecode liveness

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 22 19:59:59 PDT 2015


https://bugs.webkit.org/show_bug.cgi?id=144086

            Bug ID: 144086
           Summary: Force SetLocals live the same way that we force
                    MovHinted Nodes live - by using bytecode liveness
    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

As of https://bugs.webkit.org/show_bug.cgi?id=143735 we figure out when and where to Phantom a node by using bytecode liveness. We could also decide which SetLocals must be generated by using bytecode liveness. It would be relatively straight-forward. If we did this, then we could make GetLocal be not MustGenerate.

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