#0 0x00007ffff626ac8e in JSC::DFG::AbstractValue::checkConsistency (this=0x7fffffff8898) at ../../../../Source/JavaScriptCore/dfg/DFGAbstractValue.h:461
#1 0x00007ffff626a9e1 in JSC::DFG::AbstractValue::set (this=0x7fffffff8898, value=...) at ../../../../Source/JavaScriptCore/dfg/DFGAbstractValue.h:366
#2 0x00007ffff626646e in JSC::DFG::AbstractState::execute (this=0x7fffffff8820, nodeIndex=47) at ../../../../Source/JavaScriptCore/dfg/DFGAbstractState.cpp:202
#3 0x00007ffff62b0df1 in JSC::DFG::Propagator::performBlockCFA (this=0x7fffffff8c70, state=..., blockIndex=4) at ../../../../Source/JavaScriptCore/dfg/DFGPropagator.cpp:1714
#4 0x00007ffff62b0e7a in JSC::DFG::Propagator::performForwardCFA (this=0x7fffffff8c70, state=...) at ../../../../Source/JavaScriptCore/dfg/DFGPropagator.cpp:1737
#5 0x00007ffff62b0f18 in JSC::DFG::Propagator::globalCFA (this=0x7fffffff8c70) at ../../../../Source/JavaScriptCore/dfg/DFGPropagator.cpp:1763
#6 0x00007ffff62abab4 in JSC::DFG::Propagator::fixpoint (this=0x7fffffff8c70) at ../../../../Source/JavaScriptCore/dfg/DFGPropagator.cpp:85
#7 0x00007ffff62aad33 in JSC::DFG::propagate (graph=..., globalData=0x6f9730, codeBlock=0x8358b0) at ../../../../Source/JavaScriptCore/dfg/DFGPropagator.cpp:1792
#8 0x00007ffff6291d6f in JSC::DFG::compile (compileMode=JSC::DFG::CompileFunction, exec=0x7fffa6b121c8, codeBlock=0x8358b0, jitCode=..., jitCodeWithArityCheck=0x7fffa62de968)
at ../../../../Source/JavaScriptCore/dfg/DFGDriver.cpp:58
#9 0x00007ffff62911d5 in JSC::DFG::tryCompileFunction (exec=0x7fffa6b121c8, codeBlock=0x8358b0, jitCode=..., jitCodeWithArityCheck=...)
at ../../../../Source/JavaScriptCore/dfg/DFGDriver.cpp:82
#10 0x00007ffff63b493b in JSC::FunctionExecutable::compileForCallInternal (this=0x7fffa62de920, exec=0x7fffa6b121c8, scopeChainNode=0x7ffff4845620, jitType=JSC::JITCode::DFGJIT)
at ../../../../Source/JavaScriptCore/runtime/Executable.cpp:547
#11 0x00007ffff63b3c07 in JSC::FunctionExecutable::compileOptimizedForCall (this=0x7fffa62de920, exec=0x7fffa6b121c8, scopeChainNode=0x7ffff4845620)
at ../../../../Source/JavaScriptCore/runtime/Executable.cpp:461
#12 0x00007ffff61ee3e0 in JSC::FunctionExecutable::compileOptimizedFor (this=0x7fffa62de920, exec=0x7fffa6b121c8, scopeChainNode=0x7ffff4845620, kind=JSC::CodeForCall)
at ../../../../Source/JavaScriptCore/runtime/Executable.h:570
#13 0x00007ffff61ebca1 in JSC::FunctionCodeBlock::compileOptimized (this=0x7bf3b0, exec=0x7fffa6b121c8, scopeChainNode=0x7ffff4845620)
at ../../../../Source/JavaScriptCore/bytecode/CodeBlock.cpp:2167
#14 0x00007ffff63217b9 in JSC::cti_optimize_from_ret (args=0x7fffffffae30) at ../../../../Source/JavaScriptCore/jit/JITStubs.cpp:2059
#15 0x00007ffff631d950 in JSC::JITThunks::tryCacheGetByID (callFrame=0xffffad60, codeBlock=0x7ffff61ee3e0, returnAddress=..., baseValue=..., propertyName=..., slot=..., stubInfo=
0x7ffff48444e0) at ../../../../Source/JavaScriptCore/jit/JITStubs.cpp:952
#16 0x00007fffffffae50 in ?? ()
#17 0x00007ffff48444e0 in ?? ()
#18 0xffff000000000003 in ?? ()
#19 0xffff000000000040 in ?? ()
#20 0x0000000000000000 in ?? ()