[Webkit-unassigned] [Bug 166847] New: GC barrier shouldn't need any fences

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=166847

            Bug ID: 166847
           Summary: GC barrier shouldn't need any fences
    Classification: Unclassified
           Product: WebKit
           Version: WebKit 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

My initial implementation of the retreating wavefront barrier required a store-load fence.

This is not necessary if you do some double-buffering.

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