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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [jsc][dfg] Don't use DFG intrinsic for HasOwnProperty on MIPS"
href="https://bugs.webkit.org/show_bug.cgi?id=170222">170222</a>
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<th>Summary</th>
<td>[jsc][dfg] Don't use DFG intrinsic for HasOwnProperty on MIPS
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>Other
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>Linux
</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
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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>guijemont@igalia.com
</td>
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<p>
<div>
<pre>We don't have enough registers for the generic version of the intrinsic, and simply using the X86 version on MIPS makes some stress tests crash.
stress/has-own-property-name-cache-string-keys.js
DFG ASSERTION FAILED: Edge verification error: @80->Check:String:@57 was expected to have type String but has type Top (14898167807)
../Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h(134) : void JSC::DFG::AbstractInterpreter<AbstractStateType>::verifyEdge(JSC::DFG::Node*, JSC::DFG
::Edge) [with AbstractStateType = JSC::DFG::InPlaceAbstractState]
and
JSTests/stress/has-own-property-name-cache-symbol-keys.js
DFG ASSERTION FAILED: Edge verification error: @80->Check:Symbol:@57 was expected to have type Symbol but has type Top (14898167807)
../Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h(134) : void JSC::DFG::AbstractInterpreter<AbstractStateType>::verifyEdge(JSC::DFG::Node*, JSC::DFG
::Edge) [with AbstractStateType = JSC::DFG::InPlaceAbstractState]
Ideally we should see if we can fix the X86 version or make a MIPS variant of it (I started playing with that but don't have it working yet), in the mean time, I think we should deactivate the intrinsic on MIPS.</pre>
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