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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Remove DFG::DesiredWriteBarriers because it's just a very difficult way of saying "please barrier the machine code block owner""
href="https://bugs.webkit.org/show_bug.cgi?id=147030">147030</a>
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<th>Summary</th>
<td>Remove DFG::DesiredWriteBarriers because it's just a very difficult way of saying "please barrier the machine code block owner"
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>JavaScriptCore
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>fpizlo@apple.com
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<p>
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<pre>Just doing:
vm.heap.writeBarrier(codeBlock->ownerExecutable()
somewhere in Plan is equivalent to all of what DesiredWriteBarriers amounts to, since:
- All of the uses of it pass codeBlock->ownerExecutable() as the owner.
- It's guaranteed that a barrier on the owner executable will be executed as a result of compilation, so we might as well just do it unconditionally.</pre>
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