C++ (Cpp) hasExitSite Examples

Example #1

File: GetByIdStatus.cpp Project: MYSHLIFE/webkit

GetByIdStatus GetByIdStatus::computeFor(
    CodeBlock* profiledBlock, CodeBlock* dfgBlock, StubInfoMap& baselineMap,
    StubInfoMap& dfgMap, CodeOrigin codeOrigin, StringImpl* uid)
{
#if ENABLE(DFG_JIT)
    if (dfgBlock) {
        GetByIdStatus result;
        {
            ConcurrentJITLocker locker(dfgBlock->m_lock);
            result = computeForStubInfo(locker, dfgBlock, dfgMap.get(codeOrigin), uid);
        }
        
        if (result.takesSlowPath())
            return result;
    
        {
            ConcurrentJITLocker locker(profiledBlock->m_lock);
            if (hasExitSite(locker, profiledBlock, codeOrigin.bytecodeIndex, ExitFromFTL))
                return GetByIdStatus(TakesSlowPath, true);
        }
        
        if (result.isSet())
            return result;
    }
#else
    UNUSED_PARAM(dfgBlock);
    UNUSED_PARAM(dfgMap);
#endif

    return computeFor(profiledBlock, baselineMap, codeOrigin.bytecodeIndex, uid);
}

Example #2

File: PutByIdStatus.cpp Project: ddxxyy/webkit

PutByIdStatus PutByIdStatus::computeFor(CodeBlock* baselineBlock, CodeBlock* dfgBlock, StubInfoMap& baselineMap, StubInfoMap& dfgMap, CodeOrigin codeOrigin, StringImpl* uid)
{
#if ENABLE(DFG_JIT)
    if (dfgBlock) {
        CallLinkStatus::ExitSiteData exitSiteData;
        {
            ConcurrentJITLocker locker(baselineBlock->m_lock);
            if (hasExitSite(locker, baselineBlock, codeOrigin.bytecodeIndex, ExitFromFTL))
                return PutByIdStatus(TakesSlowPath);
            exitSiteData = CallLinkStatus::computeExitSiteData(
                locker, baselineBlock, codeOrigin.bytecodeIndex, ExitFromFTL);
        }
            
        PutByIdStatus result;
        {
            ConcurrentJITLocker locker(dfgBlock->m_lock);
            result = computeForStubInfo(
                locker, dfgBlock, dfgMap.get(codeOrigin), uid, exitSiteData);
        }
        
        // We use TakesSlowPath in some cases where the stub was unset. That's weird and
        // it would be better not to do that. But it means that we have to defend
        // ourselves here.
        if (result.isSimple())
            return result;
    }
#else
    UNUSED_PARAM(dfgBlock);
    UNUSED_PARAM(dfgMap);
#endif

    return computeFor(baselineBlock, baselineMap, codeOrigin.bytecodeIndex, uid);
}

Example #3

File: PutByIdStatus.cpp Project: ddxxyy/webkit

PutByIdStatus PutByIdStatus::computeFor(CodeBlock* profiledBlock, StubInfoMap& map, unsigned bytecodeIndex, StringImpl* uid)
{
    ConcurrentJITLocker locker(profiledBlock->m_lock);
    
    UNUSED_PARAM(profiledBlock);
    UNUSED_PARAM(bytecodeIndex);
    UNUSED_PARAM(uid);
#if ENABLE(DFG_JIT)
    if (profiledBlock->likelyToTakeSlowCase(bytecodeIndex)
        || hasExitSite(locker, profiledBlock, bytecodeIndex))
        return PutByIdStatus(TakesSlowPath);
    
    StructureStubInfo* stubInfo = map.get(CodeOrigin(bytecodeIndex));
    PutByIdStatus result = computeForStubInfo(
        locker, profiledBlock, stubInfo, uid,
        CallLinkStatus::computeExitSiteData(locker, profiledBlock, bytecodeIndex));
    if (!result)
        return computeFromLLInt(profiledBlock, bytecodeIndex, uid);
    
    return result;
#else // ENABLE(JIT)
    UNUSED_PARAM(map);
    return PutByIdStatus(NoInformation);
#endif // ENABLE(JIT)
}

Example #4

File: GetByIdStatus.cpp Project: cos2004/webkit

GetByIdStatus GetByIdStatus::computeFor(
    CodeBlock* profiledBlock, CodeBlock* dfgBlock, StubInfoMap& baselineMap,
    StubInfoMap& dfgMap, CodeOrigin codeOrigin, UniquedStringImpl* uid)
{
#if ENABLE(DFG_JIT)
    if (dfgBlock) {
        CallLinkStatus::ExitSiteData exitSiteData;
        {
            ConcurrentJITLocker locker(profiledBlock->m_lock);
            exitSiteData = CallLinkStatus::computeExitSiteData(
                locker, profiledBlock, codeOrigin.bytecodeIndex);
        }
        
        GetByIdStatus result;
        {
            ConcurrentJITLocker locker(dfgBlock->m_lock);
            result = computeForStubInfoWithoutExitSiteFeedback(
                locker, dfgBlock, dfgMap.get(codeOrigin), uid, exitSiteData);
        }

        if (result.takesSlowPath())
            return result;
    
        {
            ConcurrentJITLocker locker(profiledBlock->m_lock);
            if (hasExitSite(locker, profiledBlock, codeOrigin.bytecodeIndex))
                return GetByIdStatus(TakesSlowPath, true);
        }
        
        if (result.isSet())
            return result;
    }
#else
    UNUSED_PARAM(dfgBlock);
    UNUSED_PARAM(dfgMap);
#endif

    return computeFor(profiledBlock, baselineMap, codeOrigin.bytecodeIndex, uid);
}

Example #5

File: GetByIdStatus.cpp Project: cos2004/webkit

GetByIdStatus GetByIdStatus::computeFor(CodeBlock* profiledBlock, StubInfoMap& map, unsigned bytecodeIndex, UniquedStringImpl* uid)
{
    ConcurrentJITLocker locker(profiledBlock->m_lock);

    GetByIdStatus result;

#if ENABLE(DFG_JIT)
    result = computeForStubInfoWithoutExitSiteFeedback(
        locker, profiledBlock, map.get(CodeOrigin(bytecodeIndex)), uid,
        CallLinkStatus::computeExitSiteData(locker, profiledBlock, bytecodeIndex));
    
    if (!result.takesSlowPath()
        && hasExitSite(locker, profiledBlock, bytecodeIndex))
        return GetByIdStatus(result.makesCalls() ? MakesCalls : TakesSlowPath, true);
#else
    UNUSED_PARAM(map);
#endif

    if (!result)
        return computeFromLLInt(profiledBlock, bytecodeIndex, uid);
    
    return result;
}

Example #6

File: GetByIdStatus.cpp Project: MYSHLIFE/webkit

GetByIdStatus GetByIdStatus::computeFor(CodeBlock* profiledBlock, StubInfoMap& map, unsigned bytecodeIndex, StringImpl* uid)
{
    ConcurrentJITLocker locker(profiledBlock->m_lock);

    GetByIdStatus result;

#if ENABLE(DFG_JIT)
    result = computeForStubInfo(
        locker, profiledBlock, map.get(CodeOrigin(bytecodeIndex)), uid);
    
    if (!result.takesSlowPath()
        && (hasExitSite(locker, profiledBlock, bytecodeIndex)
            || profiledBlock->likelyToTakeSlowCase(bytecodeIndex)))
        return GetByIdStatus(TakesSlowPath, true);
#else
    UNUSED_PARAM(map);
#endif

    if (!result)
        return computeFromLLInt(profiledBlock, bytecodeIndex, uid);
    
    return result;
}