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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Regression 204203-204210] 32-bit ASSERTION FAILED: !m_data[index].name.isValid()"
href="https://bugs.webkit.org/show_bug.cgi?id=160881">160881</a>
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<tr>
<th>Summary</th>
<td>[Regression 204203-204210] 32-bit ASSERTION FAILED: !m_data[index].name.isValid()
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
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<th>OS</th>
<td>Unspecified
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
</tr>
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<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mark.lam@apple.com
</td>
</tr></table>
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<div>
<pre>The mozilla-tests.yaml/ecma/LexicalConventions/7.7.3.js.mozilla-dfg-eager-no-cjit-validate-phases test is failing on the 32-bit JSC test bot: <a href="https://build.webkit.org/builders/Apple%20El%20Capitan%2032-bit%20JSC%20%28BuildAndTest%29/builds/3166">https://build.webkit.org/builders/Apple%20El%20Capitan%2032-bit%20JSC%20%28BuildAndTest%29/builds/3166</a>
ASSERTION FAILED: !m_data[index].name.isValid()
/Volumes/Data/slave/elcapitan-32bitJSC-debug/build/Source/JavaScriptCore/dfg/DFGRegisterBank.h(168) : void JSC::DFG::RegisterBank<JSC::GPRInfo>::retain(RegID, JSC::VirtualRegister, SpillHint) [BankInfo = JSC::GPRInfo]
1 0xe83c8d WTFCrash
2 0x6b147b JSC::DFG::RegisterBank<JSC::GPRInfo>::retain(JSC::X86Registers::RegisterID, JSC::VirtualRegister, unsigned int)
3 0x6b57f6 JSC::DFG::SpeculativeJIT::jsValueResult(JSC::X86Registers::RegisterID, JSC::X86Registers::RegisterID, JSC::DFG::Node*, JSC::DataFormat, JSC::DFG::SpeculativeJIT::UseChildrenMode)
4 0x7089e3 JSC::DFG::SpeculativeJIT::compile(JSC::DFG::Node*)
5 0x67f1dc JSC::DFG::SpeculativeJIT::compileCurrentBlock()
6 0x67fb82 JSC::DFG::SpeculativeJIT::compile()
7 0x5280ec JSC::DFG::JITCompiler::compileBody()
8 0x52bd5a JSC::DFG::JITCompiler::compileFunction()
9 0x6316bc JSC::DFG::Plan::compileInThreadImpl()
10 0x6301af JSC::DFG::Plan::compileInThread(JSC::DFG::ThreadData*)
11 0x4a6d95 JSC::DFG::compileImpl(JSC::VM&, JSC::CodeBlock*, JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, JSC::Operands<JSC::JSValue> const&, WTF::PassRefPtr<JSC::DeferredCompilationCallback>)
12 0x4a67b2 JSC::DFG::compile(JSC::VM&, JSC::CodeBlock*, JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, JSC::Operands<JSC::JSValue> const&, WTF::PassRefPtr<JSC::DeferredCompilationCallback>)
13 0x960f45 operationOptimize
14 0x2b80456
15 0xb57c01 llint_entry
16 0xb525ac vmEntryToJavaScript
17 0x946bd2 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
18 0x8e4e5e JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*)
19 0x2c3818 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
20 0x686df runWithScripts(GlobalObject*, WTF::Vector<Script, 0ul, WTF::CrashOnOverflow, 16ul> const&, WTF::String const&, bool, bool)
21 0x67856 runJSC(JSC::VM*, CommandLine)
22 0x66699 jscmain(int, char**)
23 0x66506 main
24 0x97baf6ad start
25 0x13</pre>
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