[Webkit-unassigned] [Bug 158737] New: REGRESSION: 845 32-bit JSC Stress Test failures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158737

            Bug ID: 158737
           Summary: REGRESSION: 845 32-bit JSC Stress Test failures
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

<https://build.webkit.org/builders/Apple%20El%20Capitan%2032-bit%20JSC%20%28BuildAndTest%29/builds/2650/steps/webkit-32bit-jsc-test/logs/stdio>

airjs-tests.yaml/stress-test.js.default: ASSERTION FAILED: m_useCount
airjs-tests.yaml/stress-test.js.default: /Volumes/Data/slave/elcapitan-32bitJSC-debug/build/Source/JavaScriptCore/dfg/DFGGenerationInfo.h(178) : bool JSC::DFG::GenerationInfo::use(JSC::DFG::VariableEventStream &)
airjs-tests.yaml/stress-test.js.default: 1   0xe15c4d WTFCrash
airjs-tests.yaml/stress-test.js.default: 2   0x68b24d JSC::DFG::GenerationInfo::use(JSC::DFG::VariableEventStream&)
airjs-tests.yaml/stress-test.js.default: 3   0x68b0dd JSC::DFG::SpeculativeJIT::use(JSC::DFG::Node*)
airjs-tests.yaml/stress-test.js.default: 4   0x67321b JSC::DFG::JSValueOperand::use()
airjs-tests.yaml/stress-test.js.default: 5   0x6b36dc JSC::DFG::SpeculativeJIT::emitCall(JSC::DFG::Node*)
airjs-tests.yaml/stress-test.js.default: 6   0x6d369d JSC::DFG::SpeculativeJIT::compile(JSC::DFG::Node*)
airjs-tests.yaml/stress-test.js.default: 7   0x63fc7e JSC::DFG::SpeculativeJIT::compileCurrentBlock()
airjs-tests.yaml/stress-test.js.default: 8   0x640622 JSC::DFG::SpeculativeJIT::compile()
airjs-tests.yaml/stress-test.js.default: 9   0x4eab5c JSC::DFG::JITCompiler::compileBody()
airjs-tests.yaml/stress-test.js.default: 10  0x4ee787 JSC::DFG::JITCompiler::compileFunction()
airjs-tests.yaml/stress-test.js.default: 11  0x5f2591 JSC::DFG::Plan::compileInThreadImpl(JSC::DFG::LongLivedState&)
airjs-tests.yaml/stress-test.js.default: 12  0x5f10fc JSC::DFG::Plan::compileInThread(JSC::DFG::LongLivedState&, JSC::DFG::ThreadData*)
airjs-tests.yaml/stress-test.js.default: 13  0x46b693 JSC::DFG::compileImpl(JSC::VM&, JSC::CodeBlock*, JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, JSC::Operands<JSC::JSValue, JSC::OperandValueTraits<JSC::JSValue> > const&, WTF::PassRefPtr<JSC::DeferredCompilationCallback>)
airjs-tests.yaml/stress-test.js.default: 14  0x46b062 JSC::DFG::compile(JSC::VM&, JSC::CodeBlock*, JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, JSC::Operands<JSC::JSValue, JSC::OperandValueTraits<JSC::JSValue> > const&, WTF::PassRefPtr<JSC::DeferredCompilationCallback>)
airjs-tests.yaml/stress-test.js.default: 15  0x90e941 operationOptimize
airjs-tests.yaml/stress-test.js.default: 16  0x2a5f0a1
airjs-tests.yaml/stress-test.js.default: 17  0x2a8ea14
airjs-tests.yaml/stress-test.js.default: 18  0x2a6576f
airjs-tests.yaml/stress-test.js.default: 19  0x2adbd95
airjs-tests.yaml/stress-test.js.default: 20  0xaf8209 llint_entry
airjs-tests.yaml/stress-test.js.default: 21  0xaf84d3 llint_entry
airjs-tests.yaml/stress-test.js.default: 22  0xaf8209 llint_entry
airjs-tests.yaml/stress-test.js.default: 23  0xaf8209 llint_entry
airjs-tests.yaml/stress-test.js.default: 24  0xaf2d1c vmEntryToJavaScript
airjs-tests.yaml/stress-test.js.default: 25  0x8f3962 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
airjs-tests.yaml/stress-test.js.default: 26  0x898e06 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*)
airjs-tests.yaml/stress-test.js.default: 27  0x28d048 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
airjs-tests.yaml/stress-test.js.default: 28  0x38681 runWithScripts(GlobalObject*, WTF::Vector<Script, 0ul, WTF::CrashOnOverflow, 16ul> const&, WTF::String const&, bool, bool)
airjs-tests.yaml/stress-test.js.default: 29  0x379c6 runJSC(JSC::VM*, CommandLine)
airjs-tests.yaml/stress-test.js.default: 30  0x369a9 jscmain(int, char**)
airjs-tests.yaml/stress-test.js.default: 31  0x36816 main

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