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* Copyright (C) 2011 Apple Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "LLIntExceptions.h"
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#include "CallFrame.h"
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#include "CodeBlock.h"
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#include "Instruction.h"
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#include "JITExceptions.h"
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#include "LLIntCommon.h"
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#include "LowLevelInterpreter.h"
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namespace JSC { namespace LLInt {
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static void fixupPCforExceptionIfNeeded(ExecState* exec)
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CodeBlock* codeBlock = exec->codeBlock();
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Instruction* pc = exec->currentVPC();
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exec->setCurrentVPC(codeBlock->adjustPCIfAtCallSite(pc));
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void interpreterThrowInCaller(ExecState* exec, ReturnAddressPtr pc)
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JSGlobalData* globalData = &exec->globalData();
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NativeCallFrameTracer tracer(globalData, exec);
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#if LLINT_SLOW_PATH_TRACING
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dataLogF("Throwing exception %s.\n", globalData->exception.description());
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fixupPCforExceptionIfNeeded(exec);
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globalData, exec, globalData->exception,
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exec->codeBlock()->bytecodeOffset(exec, pc));
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Instruction* returnToThrowForThrownException(ExecState* exec)
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return LLInt::exceptionInstructions();
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Instruction* returnToThrow(ExecState* exec, Instruction* pc)
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JSGlobalData* globalData = &exec->globalData();
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NativeCallFrameTracer tracer(globalData, exec);
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#if LLINT_SLOW_PATH_TRACING
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dataLogF("Throwing exception %s (returnToThrow).\n", globalData->exception.description());
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fixupPCforExceptionIfNeeded(exec);
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genericThrow(globalData, exec, globalData->exception, pc - exec->codeBlock()->instructions().begin());
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return LLInt::exceptionInstructions();
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void* callToThrow(ExecState* exec, Instruction* pc)
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JSGlobalData* globalData = &exec->globalData();
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NativeCallFrameTracer tracer(globalData, exec);
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#if LLINT_SLOW_PATH_TRACING
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dataLogF("Throwing exception %s (callToThrow).\n", globalData->exception.description());
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fixupPCforExceptionIfNeeded(exec);
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genericThrow(globalData, exec, globalData->exception, pc - exec->codeBlock()->instructions().begin());
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return LLInt::getCodePtr(llint_throw_during_call_trampoline);
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} } // namespace JSC::LLInt
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#endif // ENABLE(LLINT)