Source/JavaScriptCore/jit/JITCall.cpp - platform/external/webkit - Git at Google

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "config.h"

 #if ENABLE(JIT)
 #if USE(JSVALUE64)
 #include "JIT.h"

 #include "CodeBlock.h"
 #include "JITInlineMethods.h"
 #include "JITStubCall.h"
 #include "JSArray.h"
 #include "JSFunction.h"
 #include "Interpreter.h"
 #include "ResultType.h"
 #include "SamplingTool.h"

 #ifndef NDEBUG
 #include <stdio.h>
 #endif

 using namespace std;

 namespace JSC {

 void JIT::compileOpCallInitializeCallFrame()
 {
     // regT0 holds callee, regT1 holds argCount
     loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain)), regT3); // scopeChain
     emitPutIntToCallFrameHeader(regT1, RegisterFile::ArgumentCount);
     emitPutCellToCallFrameHeader(regT0, RegisterFile::Callee);
     emitPutCellToCallFrameHeader(regT3, RegisterFile::ScopeChain);
 }

 void JIT::emit_op_call_put_result(Instruction* instruction)
 {
     int dst = instruction[1].u.operand;
     emitPutVirtualRegister(dst);
 }

 void JIT::compileOpCallVarargs(Instruction* instruction)
 {
     int callee = instruction[1].u.operand;
     int argCountRegister = instruction[2].u.operand;
     int registerOffset = instruction[3].u.operand;

     emitGetVirtualRegister(argCountRegister, regT1);
     emitFastArithImmToInt(regT1);
     emitGetVirtualRegister(callee, regT0);
     addPtr(Imm32(registerOffset), regT1, regT2);

     // Check for JSFunctions.
     emitJumpSlowCaseIfNotJSCell(regT0);
     addSlowCase(branchPtr(NotEqual, Address(regT0), TrustedImmPtr(m_globalData->jsFunctionVPtr)));

     // Speculatively roll the callframe, assuming argCount will match the arity.
     mul32(TrustedImm32(sizeof(Register)), regT2, regT2);
     intptr_t offset = (intptr_t)sizeof(Register) * (intptr_t)RegisterFile::CallerFrame;
     addPtr(Imm32((int32_t)offset), regT2, regT3);
     addPtr(callFrameRegister, regT3);
     storePtr(callFrameRegister, regT3);
     addPtr(regT2, callFrameRegister);
     emitNakedCall(m_globalData->jitStubs->ctiVirtualCall());

     sampleCodeBlock(m_codeBlock);
 }

 void JIT::compileOpCallVarargsSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator& iter)
 {
     linkSlowCase(iter);
     linkSlowCase(iter);

     JITStubCall stubCall(this, cti_op_call_NotJSFunction);
     stubCall.addArgument(regT0);
     stubCall.addArgument(regT2);
     stubCall.addArgument(regT1);
     stubCall.call();

     sampleCodeBlock(m_codeBlock);
 }

 #if !ENABLE(JIT_OPTIMIZE_CALL)

 /* ------------------------------ BEGIN: !ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */

 void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned)
 {
     int callee = instruction[1].u.operand;
     int argCount = instruction[2].u.operand;
     int registerOffset = instruction[3].u.operand;

     // Handle eval
     Jump wasEval;
     if (opcodeID == op_call_eval) {
         JITStubCall stubCall(this, cti_op_call_eval);
         stubCall.addArgument(callee, regT0);
         stubCall.addArgument(JIT::Imm32(registerOffset));
         stubCall.addArgument(JIT::Imm32(argCount));
         stubCall.call();
         wasEval = branchPtr(NotEqual, regT0, TrustedImmPtr(JSValue::encode(JSValue())));
     }

     emitGetVirtualRegister(callee, regT0);

     // Check for JSFunctions.
     emitJumpSlowCaseIfNotJSCell(regT0);
     addSlowCase(branchPtr(NotEqual, Address(regT0), TrustedImmPtr(m_globalData->jsFunctionVPtr)));

     // Speculatively roll the callframe, assuming argCount will match the arity.
     storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register))));
     addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister);
     move(Imm32(argCount), regT1);

     emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstruct() : m_globalData->jitStubs->ctiVirtualCall());

     if (opcodeID == op_call_eval)
         wasEval.link(this);

     sampleCodeBlock(m_codeBlock);
 }

 void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned, OpcodeID opcodeID)
 {
     int argCount = instruction[2].u.operand;
     int registerOffset = instruction[3].u.operand;

     linkSlowCase(iter);
     linkSlowCase(iter);

     JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction);
     stubCall.addArgument(regT0);
     stubCall.addArgument(JIT::Imm32(registerOffset));
     stubCall.addArgument(JIT::Imm32(argCount));
     stubCall.call();

     sampleCodeBlock(m_codeBlock);
 }

 #else // !ENABLE(JIT_OPTIMIZE_CALL)

 /* ------------------------------ BEGIN: ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */

 void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned callLinkInfoIndex)
 {
     int callee = instruction[1].u.operand;
     int argCount = instruction[2].u.operand;
     int registerOffset = instruction[3].u.operand;

     // Handle eval
     Jump wasEval;
     if (opcodeID == op_call_eval) {
         JITStubCall stubCall(this, cti_op_call_eval);
         stubCall.addArgument(callee, regT0);
         stubCall.addArgument(JIT::Imm32(registerOffset));
         stubCall.addArgument(JIT::Imm32(argCount));
         stubCall.call();
         wasEval = branchPtr(NotEqual, regT0, TrustedImmPtr(JSValue::encode(JSValue())));
     }

     // This plants a check for a cached JSFunction value, so we can plant a fast link to the callee.
     // This deliberately leaves the callee in ecx, used when setting up the stack frame below
     emitGetVirtualRegister(callee, regT0);
     DataLabelPtr addressOfLinkedFunctionCheck;

     BEGIN_UNINTERRUPTED_SEQUENCE(sequenceOpCall);

     Jump jumpToSlow = branchPtrWithPatch(NotEqual, regT0, addressOfLinkedFunctionCheck, TrustedImmPtr(JSValue::encode(JSValue())));

     END_UNINTERRUPTED_SEQUENCE(sequenceOpCall);

     addSlowCase(jumpToSlow);
     ASSERT_JIT_OFFSET(differenceBetween(addressOfLinkedFunctionCheck, jumpToSlow), patchOffsetOpCallCompareToJump);
     m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathBegin = addressOfLinkedFunctionCheck;

     // The following is the fast case, only used whan a callee can be linked.

     // Fast version of stack frame initialization, directly relative to edi.
     // Note that this omits to set up RegisterFile::CodeBlock, which is set in the callee

     loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain)), regT1); // newScopeChain

     store32(TrustedImm32(Int32Tag), intTagFor(registerOffset + RegisterFile::ArgumentCount));
     store32(Imm32(argCount), intPayloadFor(registerOffset + RegisterFile::ArgumentCount));
     storePtr(callFrameRegister, Address(callFrameRegister, (registerOffset + RegisterFile::CallerFrame) * static_cast<int>(sizeof(Register))));
     storePtr(regT0, Address(callFrameRegister, (registerOffset + RegisterFile::Callee) * static_cast<int>(sizeof(Register))));
     storePtr(regT1, Address(callFrameRegister, (registerOffset + RegisterFile::ScopeChain) * static_cast<int>(sizeof(Register))));
     addPtr(Imm32(registerOffset * sizeof(Register)), callFrameRegister);

     // Call to the callee
     m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathOther = emitNakedCall();

     if (opcodeID == op_call_eval)
         wasEval.link(this);

     sampleCodeBlock(m_codeBlock);
 }

 void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID)
 {
     int argCount = instruction[2].u.operand;
     int registerOffset = instruction[3].u.operand;

     linkSlowCase(iter);

     // Fast check for JS function.
     Jump callLinkFailNotObject = emitJumpIfNotJSCell(regT0);
     Jump callLinkFailNotJSFunction = branchPtr(NotEqual, Address(regT0), TrustedImmPtr(m_globalData->jsFunctionVPtr));

     // Speculatively roll the callframe, assuming argCount will match the arity.
     storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register))));
     addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister);
     move(Imm32(argCount), regT1);

     m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstructLink() : m_globalData->jitStubs->ctiVirtualCallLink());

     // Done! - return back to the hot path.
     ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_call_eval));
     ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_construct));
     emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_call));

     // This handles host functions
     callLinkFailNotObject.link(this);
     callLinkFailNotJSFunction.link(this);

     JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction);
     stubCall.addArgument(regT0);
     stubCall.addArgument(JIT::Imm32(registerOffset));
     stubCall.addArgument(JIT::Imm32(argCount));
     stubCall.call();

     sampleCodeBlock(m_codeBlock);
 }

 /* ------------------------------ END: !ENABLE / ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */

 #endif // !ENABLE(JIT_OPTIMIZE_CALL)

 } // namespace JSC

 #endif // USE(JSVALUE64)
 #endif // ENABLE(JIT)
	/*
	* Copyright (C) 2008 Apple Inc. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "config.h"

	#if ENABLE(JIT)
	#if USE(JSVALUE64)
	#include "JIT.h"

	#include "CodeBlock.h"
	#include "JITInlineMethods.h"
	#include "JITStubCall.h"
	#include "JSArray.h"
	#include "JSFunction.h"
	#include "Interpreter.h"
	#include "ResultType.h"
	#include "SamplingTool.h"

	#ifndef NDEBUG
	#include <stdio.h>
	#endif

	using namespace std;

	namespace JSC {

	void JIT::compileOpCallInitializeCallFrame()
	{
	// regT0 holds callee, regT1 holds argCount
	loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain)), regT3); // scopeChain
	emitPutIntToCallFrameHeader(regT1, RegisterFile::ArgumentCount);
	emitPutCellToCallFrameHeader(regT0, RegisterFile::Callee);
	emitPutCellToCallFrameHeader(regT3, RegisterFile::ScopeChain);
	}

	void JIT::emit_op_call_put_result(Instruction* instruction)
	{
	int dst = instruction[1].u.operand;
	emitPutVirtualRegister(dst);
	}

	void JIT::compileOpCallVarargs(Instruction* instruction)
	{
	int callee = instruction[1].u.operand;
	int argCountRegister = instruction[2].u.operand;
	int registerOffset = instruction[3].u.operand;

	emitGetVirtualRegister(argCountRegister, regT1);
	emitFastArithImmToInt(regT1);
	emitGetVirtualRegister(callee, regT0);
	addPtr(Imm32(registerOffset), regT1, regT2);

	// Check for JSFunctions.
	emitJumpSlowCaseIfNotJSCell(regT0);
	addSlowCase(branchPtr(NotEqual, Address(regT0), TrustedImmPtr(m_globalData->jsFunctionVPtr)));

	// Speculatively roll the callframe, assuming argCount will match the arity.
	mul32(TrustedImm32(sizeof(Register)), regT2, regT2);
	intptr_t offset = (intptr_t)sizeof(Register) * (intptr_t)RegisterFile::CallerFrame;
	addPtr(Imm32((int32_t)offset), regT2, regT3);
	addPtr(callFrameRegister, regT3);
	storePtr(callFrameRegister, regT3);
	addPtr(regT2, callFrameRegister);
	emitNakedCall(m_globalData->jitStubs->ctiVirtualCall());

	sampleCodeBlock(m_codeBlock);
	}

	void JIT::compileOpCallVarargsSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator& iter)
	{
	linkSlowCase(iter);
	linkSlowCase(iter);

	JITStubCall stubCall(this, cti_op_call_NotJSFunction);
	stubCall.addArgument(regT0);
	stubCall.addArgument(regT2);
	stubCall.addArgument(regT1);
	stubCall.call();

	sampleCodeBlock(m_codeBlock);
	}

	#if !ENABLE(JIT_OPTIMIZE_CALL)

	/* ------------------------------ BEGIN: !ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */

	void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned)
	{
	int callee = instruction[1].u.operand;
	int argCount = instruction[2].u.operand;
	int registerOffset = instruction[3].u.operand;

	// Handle eval
	Jump wasEval;
	if (opcodeID == op_call_eval) {
	JITStubCall stubCall(this, cti_op_call_eval);
	stubCall.addArgument(callee, regT0);
	stubCall.addArgument(JIT::Imm32(registerOffset));
	stubCall.addArgument(JIT::Imm32(argCount));
	stubCall.call();
	wasEval = branchPtr(NotEqual, regT0, TrustedImmPtr(JSValue::encode(JSValue())));
	}

	emitGetVirtualRegister(callee, regT0);

	// Check for JSFunctions.
	emitJumpSlowCaseIfNotJSCell(regT0);
	addSlowCase(branchPtr(NotEqual, Address(regT0), TrustedImmPtr(m_globalData->jsFunctionVPtr)));

	// Speculatively roll the callframe, assuming argCount will match the arity.
	storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register))));
	addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister);
	move(Imm32(argCount), regT1);

	emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstruct() : m_globalData->jitStubs->ctiVirtualCall());

	if (opcodeID == op_call_eval)
	wasEval.link(this);

	sampleCodeBlock(m_codeBlock);
	}

	void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned, OpcodeID opcodeID)
	{
	int argCount = instruction[2].u.operand;
	int registerOffset = instruction[3].u.operand;

	linkSlowCase(iter);
	linkSlowCase(iter);

	JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction);
	stubCall.addArgument(regT0);
	stubCall.addArgument(JIT::Imm32(registerOffset));
	stubCall.addArgument(JIT::Imm32(argCount));
	stubCall.call();

	sampleCodeBlock(m_codeBlock);
	}

	#else // !ENABLE(JIT_OPTIMIZE_CALL)

	/* ------------------------------ BEGIN: ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */

	void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned callLinkInfoIndex)
	{
	int callee = instruction[1].u.operand;
	int argCount = instruction[2].u.operand;
	int registerOffset = instruction[3].u.operand;

	// Handle eval
	Jump wasEval;
	if (opcodeID == op_call_eval) {
	JITStubCall stubCall(this, cti_op_call_eval);
	stubCall.addArgument(callee, regT0);
	stubCall.addArgument(JIT::Imm32(registerOffset));
	stubCall.addArgument(JIT::Imm32(argCount));
	stubCall.call();
	wasEval = branchPtr(NotEqual, regT0, TrustedImmPtr(JSValue::encode(JSValue())));
	}

	// This plants a check for a cached JSFunction value, so we can plant a fast link to the callee.
	// This deliberately leaves the callee in ecx, used when setting up the stack frame below
	emitGetVirtualRegister(callee, regT0);
	DataLabelPtr addressOfLinkedFunctionCheck;

	BEGIN_UNINTERRUPTED_SEQUENCE(sequenceOpCall);

	Jump jumpToSlow = branchPtrWithPatch(NotEqual, regT0, addressOfLinkedFunctionCheck, TrustedImmPtr(JSValue::encode(JSValue())));

	END_UNINTERRUPTED_SEQUENCE(sequenceOpCall);

	addSlowCase(jumpToSlow);
	ASSERT_JIT_OFFSET(differenceBetween(addressOfLinkedFunctionCheck, jumpToSlow), patchOffsetOpCallCompareToJump);
	m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathBegin = addressOfLinkedFunctionCheck;

	// The following is the fast case, only used whan a callee can be linked.

	// Fast version of stack frame initialization, directly relative to edi.
	// Note that this omits to set up RegisterFile::CodeBlock, which is set in the callee

	loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain)), regT1); // newScopeChain

	store32(TrustedImm32(Int32Tag), intTagFor(registerOffset + RegisterFile::ArgumentCount));
	store32(Imm32(argCount), intPayloadFor(registerOffset + RegisterFile::ArgumentCount));
	storePtr(callFrameRegister, Address(callFrameRegister, (registerOffset + RegisterFile::CallerFrame) * static_cast<int>(sizeof(Register))));
	storePtr(regT0, Address(callFrameRegister, (registerOffset + RegisterFile::Callee) * static_cast<int>(sizeof(Register))));
	storePtr(regT1, Address(callFrameRegister, (registerOffset + RegisterFile::ScopeChain) * static_cast<int>(sizeof(Register))));
	addPtr(Imm32(registerOffset * sizeof(Register)), callFrameRegister);

	// Call to the callee
	m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathOther = emitNakedCall();

	if (opcodeID == op_call_eval)
	wasEval.link(this);

	sampleCodeBlock(m_codeBlock);
	}

	void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID)
	{
	int argCount = instruction[2].u.operand;
	int registerOffset = instruction[3].u.operand;

	linkSlowCase(iter);

	// Fast check for JS function.
	Jump callLinkFailNotObject = emitJumpIfNotJSCell(regT0);
	Jump callLinkFailNotJSFunction = branchPtr(NotEqual, Address(regT0), TrustedImmPtr(m_globalData->jsFunctionVPtr));

	// Speculatively roll the callframe, assuming argCount will match the arity.
	storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register))));
	addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister);
	move(Imm32(argCount), regT1);

	m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstructLink() : m_globalData->jitStubs->ctiVirtualCallLink());

	// Done! - return back to the hot path.
	ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_call_eval));
	ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_construct));
	emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_call));

	// This handles host functions
	callLinkFailNotObject.link(this);
	callLinkFailNotJSFunction.link(this);

	JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction);
	stubCall.addArgument(regT0);
	stubCall.addArgument(JIT::Imm32(registerOffset));
	stubCall.addArgument(JIT::Imm32(argCount));
	stubCall.call();

	sampleCodeBlock(m_codeBlock);
	}

	/* ------------------------------ END: !ENABLE / ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */

	#endif // !ENABLE(JIT_OPTIMIZE_CALL)

	} // namespace JSC

	#endif // USE(JSVALUE64)
	#endif // ENABLE(JIT)