[Webkit-unassigned] [Bug 146448] JavaScriptCore performance is very bad on Windows

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=146448

--- Comment #42 from peavo at outlook.com ---
After an unreviewed debug build fix in http://trac.webkit.org/changeset/187021, the builds are looking better, but this patch has caused JSC api tests to fail for the CLoop builds:

ASSERTION FAILED: !identifierByPthreadHandle(pthreadHandle)
/Volumes/Data/slave/mavericks-cloop-debug/build/Source/WTF/wtf/ThreadingPthreads.cpp(154) : ThreadIdentifier WTF::establishIdentifierForPthreadHandle(const pthread_t &)
1   0x1078e1510 WTFCrash
2   0x10793cac7 WTF::establishIdentifierForPthreadHandle(_opaque_pthread_t* const&)
3   0x10793c730 WTF::createThreadInternal(void (*)(void*), void*, char const*)
4   0x10793af57 WTF::createThread(char const*, std::__1::function<void ()>)
5   0x10793b0b5 WTF::createThread(void (*)(void*), void*, char const*)
6   0x107446317 JSC::GCThreadSharedData::GCThreadSharedData(JSC::VM*)
7   0x107445c7d JSC::GCThreadSharedData::GCThreadSharedData(JSC::VM*)
8   0x107451a44 JSC::Heap::Heap(JSC::VM*, JSC::HeapType)
9   0x1074517b3 JSC::Heap::Heap(JSC::VM*, JSC::HeapType)
10  0x10788b80f JSC::VM::VM(JSC::VM::VMType, JSC::HeapType)
11  0x10788b731 JSC::VM::VM(JSC::VM::VMType, JSC::HeapType)
12  0x10788ea0c JSC::VM::createContextGroup(JSC::HeapType)
13  0x107554ceb JSContextGroupCreate
14  0x107647885 -[JSVirtualMachine init]
15  0x10755356d -[JSContext init]
16  0x1072739dd currentThisInsideBlockGetterTest()
17  0x107294888 testObjectiveCAPIMain()
18  0x1072859e4 testObjectiveCAPI
19  0x10727bec3 main
20  0x7fff9439c5fd start

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