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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Force SetLocals live the same way that we force MovHinted Nodes live - by using bytecode liveness"
href="https://bugs.webkit.org/show_bug.cgi?id=144086">144086</a>
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<th>Summary</th>
<td>Force SetLocals live the same way that we force MovHinted Nodes live - by using bytecode liveness
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>JavaScriptCore
</td>
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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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<pre>As of <a class="bz_bug_link
bz_status_NEW "
title="NEW - DFG should insert Phantoms late using BytecodeKills and block-local OSR availability"
href="show_bug.cgi?id=143735">https://bugs.webkit.org/show_bug.cgi?id=143735</a> 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.</pre>
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