C++ (Cpp) produceCodeBlockFor示例

示例#1

JSObject* FunctionExecutable::compileForConstructInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, unsigned bytecodeIndex)
{
    SamplingRegion samplingRegion(samplingDescription(jitType));
    
#if !ENABLE(JIT)
    UNUSED_PARAM(jitType);
    UNUSED_PARAM(exec);
    UNUSED_PARAM(bytecodeIndex);
#endif
    
    ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForConstruct);
    JSObject* exception;
    OwnPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(scope, CodeForConstruct, exception);
    if (!newCodeBlock)
        return exception;

    newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_codeBlockForConstruct.release()));
    m_codeBlockForConstruct = newCodeBlock.release();
    
    m_numParametersForConstruct = m_codeBlockForConstruct->numParameters();
    ASSERT(m_numParametersForConstruct);

#if ENABLE(JIT)
    if (!prepareFunctionForExecution(exec, m_codeBlockForConstruct, m_jitCodeForConstruct, m_jitCodeForConstructWithArityCheck, jitType, bytecodeIndex, CodeForConstruct))
        return 0;
#endif

#if ENABLE(JIT)
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct) + m_jitCodeForConstruct.size());
#else
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct));
#endif

    return 0;
}

示例#2

文件： Executable.cpp 项目： vizcount/work

JSObject* FunctionExecutable::compileForCallInternal(ExecState* exec, ScopeChainNode* scopeChainNode, JITCode::JITType jitType)
{
#if !ENABLE(JIT)
    UNUSED_PARAM(jitType);
#endif
    ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForCall);
    JSObject* exception;
    OwnPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(exec, scopeChainNode, !!m_codeBlockForCall ? OptimizingCompilation : FirstCompilation, CodeForCall, exception);
    if (!newCodeBlock)
        return exception;

    newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_codeBlockForCall.release()));
    m_codeBlockForCall = newCodeBlock.release();
    
    m_numParametersForCall = m_codeBlockForCall->m_numParameters;
    ASSERT(m_numParametersForCall);
    m_numCapturedVariables = m_codeBlockForCall->m_numCapturedVars;
    m_symbolTable = m_codeBlockForCall->sharedSymbolTable();

#if ENABLE(JIT)
    JSGlobalData* globalData = scopeChainNode->globalData;
    if (globalData->canUseJIT()) {
        bool dfgCompiled = false;
        if (jitType == JITCode::DFGJIT)
            dfgCompiled = DFG::tryCompileFunction(exec, m_codeBlockForCall.get(), m_jitCodeForCall, m_jitCodeForCallWithArityCheck);
        if (dfgCompiled) {
            if (m_codeBlockForCall->alternative())
                m_codeBlockForCall->alternative()->unlinkIncomingCalls();
        } else {
            if (m_codeBlockForCall->alternative()) {
                m_codeBlockForCall = static_pointer_cast<FunctionCodeBlock>(m_codeBlockForCall->releaseAlternative());
                m_symbolTable = m_codeBlockForCall->sharedSymbolTable();
                return 0;
            }
            m_jitCodeForCall = JIT::compile(globalData, m_codeBlockForCall.get(), &m_jitCodeForCallWithArityCheck);
        }
#if !ENABLE(OPCODE_SAMPLING)
        if (!BytecodeGenerator::dumpsGeneratedCode())
            m_codeBlockForCall->discardBytecode();
#endif
        
        m_codeBlockForCall->setJITCode(m_jitCodeForCall, m_jitCodeForCallWithArityCheck);
    }
#endif

#if ENABLE(JIT)
#if ENABLE(INTERPRETER)
    if (!m_jitCodeForCall)
        Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall));
    else
#endif
        Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall) + m_jitCodeForCall.size());
#else
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall));
#endif

    return 0;
}

示例#3

JSObject* FunctionExecutable::compileForConstructInternal(ExecState* exec, ScopeChainNode* scopeChainNode, JITCode::JITType jitType)
{
    SamplingRegion samplingRegion(samplingDescription(jitType));
    
#if !ENABLE(JIT)
    UNUSED_PARAM(jitType);
    UNUSED_PARAM(exec);
#endif
    
    ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForConstruct);
    JSObject* exception;
    OwnPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(scopeChainNode, !!m_codeBlockForConstruct ? OptimizingCompilation : FirstCompilation, CodeForConstruct, exception);
    if (!newCodeBlock)
        return exception;

    newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_codeBlockForConstruct.release()));
    m_codeBlockForConstruct = newCodeBlock.release();
    
    m_numParametersForConstruct = m_codeBlockForConstruct->numParameters();
    ASSERT(m_numParametersForConstruct);
    m_numCapturedVariables = m_codeBlockForConstruct->m_numCapturedVars;
    m_symbolTable = m_codeBlockForConstruct->sharedSymbolTable();

#if ENABLE(JIT)
    if (!prepareFunctionForExecution(exec, m_codeBlockForConstruct, m_jitCodeForConstruct, m_jitCodeForConstructWithArityCheck, m_symbolTable, jitType, CodeForConstruct))
        return 0;
#endif

#if ENABLE(JIT)
#if ENABLE(CLASSIC_INTERPRETER)
    if (!m_jitCodeForConstruct)
        Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct));
    else
#endif
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct) + m_jitCodeForConstruct.size());
#else
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct));
#endif

    return 0;
}

示例#4

文件： Executable.cpp 项目： sohocoke/webkit

JSObject* FunctionExecutable::compileForCallInternal(ExecState* exec, ScopeChainNode* scopeChainNode, JITCode::JITType jitType)
{
    SamplingRegion samplingRegion(jitType == JITCode::BaselineJIT ? "Baseline Compilation (TOTAL)" : "DFG Compilation (TOTAL)");
    
#if !ENABLE(JIT)
    UNUSED_PARAM(exec);
    UNUSED_PARAM(jitType);
    UNUSED_PARAM(exec);
#endif
    ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForCall);
    JSObject* exception;
    OwnPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(scopeChainNode, !!m_codeBlockForCall ? OptimizingCompilation : FirstCompilation, CodeForCall, exception);
    if (!newCodeBlock)
        return exception;

    newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_codeBlockForCall.release()));
    m_codeBlockForCall = newCodeBlock.release();
    
    m_numParametersForCall = m_codeBlockForCall->numParameters();
    ASSERT(m_numParametersForCall);
    m_numCapturedVariables = m_codeBlockForCall->m_numCapturedVars;
    m_symbolTable = m_codeBlockForCall->sharedSymbolTable();

#if ENABLE(JIT)
    if (!jitCompileFunctionIfAppropriate(exec->globalData(), m_codeBlockForCall, m_jitCodeForCall, m_jitCodeForCallWithArityCheck, m_symbolTable, jitType))
        return 0;
#endif

#if ENABLE(JIT)
#if ENABLE(INTERPRETER)
    if (!m_jitCodeForCall)
        Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall));
    else
#endif
        Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall) + m_jitCodeForCall.size());
#else
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall));
#endif

    return 0;
}

示例#5

JSObject* FunctionExecutable::compileForConstructInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, CompilationResult* result, unsigned bytecodeIndex)
{
    SamplingRegion samplingRegion(samplingDescription(jitType));
    
    if (result)
        *result = CompilationFailed;
    
    ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForConstruct);
    JSObject* exception = 0;
    RefPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(scope, CodeForConstruct, exception);
    if (!newCodeBlock)
        return exception;

    CompilationResult theResult = prepareFunctionForExecution(
        exec, m_codeBlockForConstruct, newCodeBlock.get(), m_jitCodeForConstruct,
        m_jitCodeForConstructWithArityCheck, m_numParametersForConstruct, jitType,
        bytecodeIndex, CodeForConstruct);
    if (result)
        *result = theResult;

    return 0;
}