[Webkit-unassigned] [Bug 198023] New: [JSC] UnlinkedCodeBlock should be eventually jettisoned too or cached

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198023

            Bug ID: 198023
           Summary: [JSC] UnlinkedCodeBlock should be eventually
                    jettisoned too or cached
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ysuzuki at apple.com

Otherwise, so long as we have a reachable path to that UnlinkedCodeBlock, we still retain it.
Since UnlinkedCodeBlock holds InstructionStream and UnlinkedMetadataTable, it is not so cheap.
We could have some mechanism similar to ScriptExecutable -> CodeBlock (logically) weak reference.

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