Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 0 insertions, 1775 deletions

diff --git a/JavaScriptCore/jit/JITOpcodes.cpp b/JavaScriptCore/jit/JITOpcodes.cpp
deleted file mode 100644
index 972b879..0000000
--- a/JavaScriptCore/jit/JITOpcodes.cpp
+++ /dev/null
@@ -1,1775 +0,0 @@
-/*
- * Copyright (C) 2009 Apple Inc. All rights reserved.
- * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
- *
- * 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)
-#include "JIT.h"
-
-#include "Arguments.h"
-#include "JITInlineMethods.h"
-#include "JITStubCall.h"
-#include "JSArray.h"
-#include "JSCell.h"
-#include "JSFunction.h"
-#include "JSPropertyNameIterator.h"
-#include "LinkBuffer.h"
-
-namespace JSC {
-
-#if USE(JSVALUE64)
-
-#define RECORD_JUMP_TARGET(targetOffset) \
-   do { m_labels[m_bytecodeOffset + (targetOffset)].used(); } while (false)
-
-void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executablePool, JSGlobalData* globalData, TrampolineStructure *trampolines)
-{
-#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
-    // (2) The second function provides fast property access for string length
-    Label stringLengthBegin = align();
-
-    // Check eax is a string
-    Jump string_failureCases1 = emitJumpIfNotJSCell(regT0);
-    Jump string_failureCases2 = branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsStringVPtr));
-
-    // Checks out okay! - get the length from the Ustring.
-    load32(Address(regT0, OBJECT_OFFSETOF(JSString, m_length)), regT0);
-
-    Jump string_failureCases3 = branch32(Above, regT0, Imm32(JSImmediate::maxImmediateInt));
-
-    // regT0 contains a 64 bit value (is positive, is zero extended) so we don't need sign extend here.
-    emitFastArithIntToImmNoCheck(regT0, regT0);
-    
-    ret();
-#endif
-
-    // (3) Trampolines for the slow cases of op_call / op_call_eval / op_construct.
-    COMPILE_ASSERT(sizeof(CodeType) == 4, CodeTypeEnumMustBe32Bit);
-
-    // VirtualCallLink Trampoline
-    // regT0 holds callee, regT1 holds argCount.  regT2 will hold the FunctionExecutable.
-    JumpList callLinkFailures;
-    Label virtualCallLinkBegin = align();
-    compileOpCallInitializeCallFrame();
-    preserveReturnAddressAfterCall(regT3);
-    emitPutToCallFrameHeader(regT3, RegisterFile::ReturnPC);
-    restoreArgumentReference();
-    Call callLazyLinkCall = call();
-    callLinkFailures.append(branchTestPtr(Zero, regT0));
-    restoreReturnAddressBeforeReturn(regT3);
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
-    jump(regT0);
-
-    // VirtualConstructLink Trampoline
-    // regT0 holds callee, regT1 holds argCount.  regT2 will hold the FunctionExecutable.
-    Label virtualConstructLinkBegin = align();
-    compileOpCallInitializeCallFrame();
-    preserveReturnAddressAfterCall(regT3);
-    emitPutToCallFrameHeader(regT3, RegisterFile::ReturnPC);
-    restoreArgumentReference();
-    Call callLazyLinkConstruct = call();
-    callLinkFailures.append(branchTestPtr(Zero, regT0));
-    restoreReturnAddressBeforeReturn(regT3);
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
-    jump(regT0);
-
-    // VirtualCall Trampoline
-    // regT0 holds callee, regT1 holds argCount.  regT2 will hold the FunctionExecutable.
-    Label virtualCallBegin = align();
-    compileOpCallInitializeCallFrame();
-
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
-
-    Jump hasCodeBlock3 = branch32(GreaterThanOrEqual, Address(regT2, OBJECT_OFFSETOF(FunctionExecutable, m_numParametersForCall)), Imm32(0));
-    preserveReturnAddressAfterCall(regT3);
-    restoreArgumentReference();
-    Call callCompileCall = call();
-    callLinkFailures.append(branchTestPtr(Zero, regT0));
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
-    restoreReturnAddressBeforeReturn(regT3);
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
-    hasCodeBlock3.link(this);
-
-    loadPtr(Address(regT2, OBJECT_OFFSETOF(FunctionExecutable, m_jitCodeForCallWithArityCheck)), regT0);
-    jump(regT0);
-
-    // VirtualConstruct Trampoline
-    // regT0 holds callee, regT1 holds argCount.  regT2 will hold the FunctionExecutable.
-    Label virtualConstructBegin = align();
-    compileOpCallInitializeCallFrame();
-
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
-
-    Jump hasCodeBlock4 = branch32(GreaterThanOrEqual, Address(regT2, OBJECT_OFFSETOF(FunctionExecutable, m_numParametersForConstruct)), Imm32(0));
-    preserveReturnAddressAfterCall(regT3);
-    restoreArgumentReference();
-    Call callCompileConstruct = call();
-    callLinkFailures.append(branchTestPtr(Zero, regT0));
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
-    restoreReturnAddressBeforeReturn(regT3);
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
-    hasCodeBlock4.link(this);
-
-    loadPtr(Address(regT2, OBJECT_OFFSETOF(FunctionExecutable, m_jitCodeForConstructWithArityCheck)), regT0);
-    jump(regT0);
-    
-    // If the parser fails we want to be able to be able to keep going,
-    // So we handle this as a parse failure.
-    callLinkFailures.link(this);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT1);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
-    restoreReturnAddressBeforeReturn(regT1);
-    move(ImmPtr(&globalData->exceptionLocation), regT2);
-    storePtr(regT1, regT2);
-    poke(callFrameRegister, 1 + OBJECT_OFFSETOF(struct JITStackFrame, callFrame) / sizeof(void*));
-    poke(ImmPtr(FunctionPtr(ctiVMThrowTrampoline).value()));
-    ret();
-
-    // NativeCall Trampoline
-    Label nativeCallThunk = privateCompileCTINativeCall(globalData);    
-    Label nativeConstructThunk = privateCompileCTINativeCall(globalData, true);    
-
-#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
-    Call string_failureCases1Call = makeTailRecursiveCall(string_failureCases1);
-    Call string_failureCases2Call = makeTailRecursiveCall(string_failureCases2);
-    Call string_failureCases3Call = makeTailRecursiveCall(string_failureCases3);
-#endif
-
-    // All trampolines constructed! copy the code, link up calls, and set the pointers on the Machine object.
-    LinkBuffer patchBuffer(this, m_globalData->executableAllocator.poolForSize(m_assembler.size()), 0);
-
-#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
-    patchBuffer.link(string_failureCases1Call, FunctionPtr(cti_op_get_by_id_string_fail));
-    patchBuffer.link(string_failureCases2Call, FunctionPtr(cti_op_get_by_id_string_fail));
-    patchBuffer.link(string_failureCases3Call, FunctionPtr(cti_op_get_by_id_string_fail));
-#endif
-#if ENABLE(JIT_OPTIMIZE_CALL)
-    patchBuffer.link(callLazyLinkCall, FunctionPtr(cti_vm_lazyLinkCall));
-    patchBuffer.link(callLazyLinkConstruct, FunctionPtr(cti_vm_lazyLinkConstruct));
-#endif
-    patchBuffer.link(callCompileCall, FunctionPtr(cti_op_call_jitCompile));
-    patchBuffer.link(callCompileConstruct, FunctionPtr(cti_op_construct_jitCompile));
-
-    CodeRef finalCode = patchBuffer.finalizeCode();
-    *executablePool = finalCode.m_executablePool;
-
-    trampolines->ctiVirtualCallLink = patchBuffer.trampolineAt(virtualCallLinkBegin);
-    trampolines->ctiVirtualConstructLink = patchBuffer.trampolineAt(virtualConstructLinkBegin);
-    trampolines->ctiVirtualCall = patchBuffer.trampolineAt(virtualCallBegin);
-    trampolines->ctiVirtualConstruct = patchBuffer.trampolineAt(virtualConstructBegin);
-    trampolines->ctiNativeCall = patchBuffer.trampolineAt(nativeCallThunk);
-    trampolines->ctiNativeConstruct = patchBuffer.trampolineAt(nativeConstructThunk);
-#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
-    trampolines->ctiStringLengthTrampoline = patchBuffer.trampolineAt(stringLengthBegin);
-#endif
-}
-
-JIT::Label JIT::privateCompileCTINativeCall(JSGlobalData* globalData, bool isConstruct)
-{
-    int executableOffsetToFunction = isConstruct ? OBJECT_OFFSETOF(NativeExecutable, m_constructor) : OBJECT_OFFSETOF(NativeExecutable, m_function);
-
-    Label nativeCallThunk = align();
-    
-    emitPutImmediateToCallFrameHeader(0, RegisterFile::CodeBlock);
-
-#if CPU(X86_64)
-    // Load caller frame's scope chain into this callframe so that whatever we call can
-    // get to its global data.
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, regT0);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ScopeChain, regT1, regT0);
-    emitPutToCallFrameHeader(regT1, RegisterFile::ScopeChain);
-
-    peek(regT1);
-    emitPutToCallFrameHeader(regT1, RegisterFile::ReturnPC);
-
-    // Calling convention:      f(edi, esi, edx, ecx, ...);
-    // Host function signature: f(ExecState*);
-    move(callFrameRegister, X86Registers::edi);
-
-    subPtr(Imm32(16 - sizeof(void*)), stackPointerRegister); // Align stack after call.
-
-    emitGetFromCallFrameHeaderPtr(RegisterFile::Callee, X86Registers::esi);
-    loadPtr(Address(X86Registers::esi, OBJECT_OFFSETOF(JSFunction, m_executable)), X86Registers::r9);
-    move(regT0, callFrameRegister); // Eagerly restore caller frame register to avoid loading from stack.
-    call(Address(X86Registers::r9, executableOffsetToFunction));
-
-    addPtr(Imm32(16 - sizeof(void*)), stackPointerRegister);
-
-#elif CPU(ARM)
-    // Load caller frame's scope chain into this callframe so that whatever we call can
-    // get to its global data.
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, regT2);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ScopeChain, regT1, regT2);
-    emitPutToCallFrameHeader(regT1, RegisterFile::ScopeChain);
-
-    preserveReturnAddressAfterCall(regT3); // Callee preserved
-    emitPutToCallFrameHeader(regT3, RegisterFile::ReturnPC);
-
-    // Calling convention:      f(r0 == regT0, r1 == regT1, ...);
-    // Host function signature: f(ExecState*);
-    move(callFrameRegister, ARMRegisters::r0);
-
-    emitGetFromCallFrameHeaderPtr(RegisterFile::Callee, ARMRegisters::r1);
-    move(regT2, callFrameRegister); // Eagerly restore caller frame register to avoid loading from stack.
-    loadPtr(Address(ARMRegisters::r1, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
-    call(Address(regT2, executableOffsetToFunction));
-
-    restoreReturnAddressBeforeReturn(regT3);
-
-#elif CPU(MIPS)
-    // Load caller frame's scope chain into this callframe so that whatever we call can
-    // get to its global data.
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, regT0);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ScopeChain, regT1, regT0);
-    emitPutToCallFrameHeader(regT1, RegisterFile::ScopeChain);
-
-    preserveReturnAddressAfterCall(regT3); // Callee preserved
-    emitPutToCallFrameHeader(regT3, RegisterFile::ReturnPC);
-
-    // Calling convention:      f(a0, a1, a2, a3);
-    // Host function signature: f(ExecState*);
-
-    // Allocate stack space for 16 bytes (8-byte aligned)
-    // 16 bytes (unused) for 4 arguments
-    subPtr(Imm32(16), stackPointerRegister);
-
-    // Setup arg0
-    move(callFrameRegister, MIPSRegisters::a0);
-
-    // Call
-    emitGetFromCallFrameHeaderPtr(RegisterFile::Callee, MIPSRegisters::a2);
-    loadPtr(Address(MIPSRegisters::a2, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
-    move(regT0, callFrameRegister); // Eagerly restore caller frame register to avoid loading from stack.
-    call(Address(regT2, executableOffsetToFunction));
-
-    // Restore stack space
-    addPtr(Imm32(16), stackPointerRegister);
-
-    restoreReturnAddressBeforeReturn(regT3);
-
-#elif ENABLE(JIT_OPTIMIZE_NATIVE_CALL)
-#error "JIT_OPTIMIZE_NATIVE_CALL not yet supported on this platform."
-#else
-    UNUSED_PARAM(executableOffsetToFunction);
-    breakpoint();
-#endif
-
-    // Check for an exception
-    loadPtr(&(globalData->exception), regT2);
-    Jump exceptionHandler = branchTestPtr(NonZero, regT2);
-
-    // Return.
-    ret();
-
-    // Handle an exception
-    exceptionHandler.link(this);
-
-    // Grab the return address.
-    preserveReturnAddressAfterCall(regT1);
-
-    move(ImmPtr(&globalData->exceptionLocation), regT2);
-    storePtr(regT1, regT2);
-    poke(callFrameRegister, OBJECT_OFFSETOF(struct JITStackFrame, callFrame) / sizeof(void*));
-
-    // Set the return address.
-    move(ImmPtr(FunctionPtr(ctiVMThrowTrampoline).value()), regT1);
-    restoreReturnAddressBeforeReturn(regT1);
-
-    ret();
-
-    return nativeCallThunk;
-}
-
-JIT::CodePtr JIT::privateCompileCTINativeCall(PassRefPtr<ExecutablePool>, JSGlobalData* globalData, NativeFunction)
-{
-    return globalData->jitStubs->ctiNativeCall();
-}
-
-void JIT::emit_op_mov(Instruction* currentInstruction)
-{
-    int dst = currentInstruction[1].u.operand;
-    int src = currentInstruction[2].u.operand;
-
-    if (m_codeBlock->isConstantRegisterIndex(src)) {
-        storePtr(ImmPtr(JSValue::encode(getConstantOperand(src))), Address(callFrameRegister, dst * sizeof(Register)));
-        if (dst == m_lastResultBytecodeRegister)
-            killLastResultRegister();
-    } else if ((src == m_lastResultBytecodeRegister) || (dst == m_lastResultBytecodeRegister)) {
-        // If either the src or dst is the cached register go though
-        // get/put registers to make sure we track this correctly.
-        emitGetVirtualRegister(src, regT0);
-        emitPutVirtualRegister(dst);
-    } else {
-        // Perform the copy via regT1; do not disturb any mapping in regT0.
-        loadPtr(Address(callFrameRegister, src * sizeof(Register)), regT1);
-        storePtr(regT1, Address(callFrameRegister, dst * sizeof(Register)));
-    }
-}
-
-void JIT::emit_op_end(Instruction* currentInstruction)
-{
-    if (m_codeBlock->needsFullScopeChain())
-        JITStubCall(this, cti_op_end).call();
-
-    ASSERT(returnValueRegister != callFrameRegister);
-    emitGetVirtualRegister(currentInstruction[1].u.operand, returnValueRegister);
-    restoreReturnAddressBeforeReturn(Address(callFrameRegister, RegisterFile::ReturnPC * static_cast<int>(sizeof(Register))));
-    ret();
-}
-
-void JIT::emit_op_jmp(Instruction* currentInstruction)
-{
-    unsigned target = currentInstruction[1].u.operand;
-    addJump(jump(), target);
-    RECORD_JUMP_TARGET(target);
-}
-
-void JIT::emit_op_loop_if_lesseq(Instruction* currentInstruction)
-{
-    emitTimeoutCheck();
-
-    unsigned op1 = currentInstruction[1].u.operand;
-    unsigned op2 = currentInstruction[2].u.operand;
-    unsigned target = currentInstruction[3].u.operand;
-    if (isOperandConstantImmediateInt(op2)) {
-        emitGetVirtualRegister(op1, regT0);
-        emitJumpSlowCaseIfNotImmediateInteger(regT0);
-        int32_t op2imm = getConstantOperandImmediateInt(op2);
-        addJump(branch32(LessThanOrEqual, regT0, Imm32(op2imm)), target);
-    } else {
-        emitGetVirtualRegisters(op1, regT0, op2, regT1);
-        emitJumpSlowCaseIfNotImmediateInteger(regT0);
-        emitJumpSlowCaseIfNotImmediateInteger(regT1);
-        addJump(branch32(LessThanOrEqual, regT0, regT1), target);
-    }
-}
-
-void JIT::emit_op_new_object(Instruction* currentInstruction)
-{
-    JITStubCall(this, cti_op_new_object).call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_check_has_instance(Instruction* currentInstruction)
-{
-    unsigned baseVal = currentInstruction[1].u.operand;
-
-    emitGetVirtualRegister(baseVal, regT0);
-
-    // Check that baseVal is a cell.
-    emitJumpSlowCaseIfNotJSCell(regT0, baseVal);
-
-    // Check that baseVal 'ImplementsHasInstance'.
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT0);
-    addSlowCase(branchTest8(Zero, Address(regT0, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(ImplementsHasInstance)));
-}
-
-void JIT::emit_op_instanceof(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned value = currentInstruction[2].u.operand;
-    unsigned baseVal = currentInstruction[3].u.operand;
-    unsigned proto = currentInstruction[4].u.operand;
-
-    // Load the operands (baseVal, proto, and value respectively) into registers.
-    // We use regT0 for baseVal since we will be done with this first, and we can then use it for the result.
-    emitGetVirtualRegister(value, regT2);
-    emitGetVirtualRegister(baseVal, regT0);
-    emitGetVirtualRegister(proto, regT1);
-
-    // Check that proto are cells.  baseVal must be a cell - this is checked by op_check_has_instance.
-    emitJumpSlowCaseIfNotJSCell(regT2, value);
-    emitJumpSlowCaseIfNotJSCell(regT1, proto);
-
-    // Check that prototype is an object
-    loadPtr(Address(regT1, OBJECT_OFFSETOF(JSCell, m_structure)), regT3);
-    addSlowCase(branch8(NotEqual, Address(regT3, OBJECT_OFFSETOF(Structure, m_typeInfo.m_type)), Imm32(ObjectType)));
-    
-    // Fixme: this check is only needed because the JSC API allows HasInstance to be overridden; we should deprecate this.
-    // Check that baseVal 'ImplementsDefaultHasInstance'.
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT0);
-    addSlowCase(branchTest8(Zero, Address(regT0, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(ImplementsDefaultHasInstance)));
-
-    // Optimistically load the result true, and start looping.
-    // Initially, regT1 still contains proto and regT2 still contains value.
-    // As we loop regT2 will be updated with its prototype, recursively walking the prototype chain.
-    move(ImmPtr(JSValue::encode(jsBoolean(true))), regT0);
-    Label loop(this);
-
-    // Load the prototype of the object in regT2.  If this is equal to regT1 - WIN!
-    // Otherwise, check if we've hit null - if we have then drop out of the loop, if not go again.
-    loadPtr(Address(regT2, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    loadPtr(Address(regT2, OBJECT_OFFSETOF(Structure, m_prototype)), regT2);
-    Jump isInstance = branchPtr(Equal, regT2, regT1);
-    emitJumpIfJSCell(regT2).linkTo(loop, this);
-
-    // We get here either by dropping out of the loop, or if value was not an Object.  Result is false.
-    move(ImmPtr(JSValue::encode(jsBoolean(false))), regT0);
-
-    // isInstance jumps right down to here, to skip setting the result to false (it has already set true).
-    isInstance.link(this);
-    emitPutVirtualRegister(dst);
-}
-
-void JIT::emit_op_call(Instruction* currentInstruction)
-{
-    compileOpCall(op_call, currentInstruction, m_callLinkInfoIndex++);
-}
-
-void JIT::emit_op_call_eval(Instruction* currentInstruction)
-{
-    compileOpCall(op_call_eval, currentInstruction, m_callLinkInfoIndex++);
-}
-
-void JIT::emit_op_call_varargs(Instruction* currentInstruction)
-{
-    compileOpCallVarargs(currentInstruction);
-}
-
-void JIT::emit_op_construct(Instruction* currentInstruction)
-{
-    compileOpCall(op_construct, currentInstruction, m_callLinkInfoIndex++);
-}
-
-void JIT::emit_op_get_global_var(Instruction* currentInstruction)
-{
-    JSVariableObject* globalObject = m_codeBlock->globalObject();
-    move(ImmPtr(globalObject), regT0);
-    emitGetVariableObjectRegister(regT0, currentInstruction[2].u.operand, regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_put_global_var(Instruction* currentInstruction)
-{
-    emitGetVirtualRegister(currentInstruction[2].u.operand, regT1);
-    JSVariableObject* globalObject = m_codeBlock->globalObject();
-    move(ImmPtr(globalObject), regT0);
-    emitPutVariableObjectRegister(regT1, regT0, currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_get_scoped_var(Instruction* currentInstruction)
-{
-    int skip = currentInstruction[3].u.operand;
-
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ScopeChain, regT0);
-    bool checkTopLevel = m_codeBlock->codeType() == FunctionCode && m_codeBlock->needsFullScopeChain();
-    ASSERT(skip || !checkTopLevel);
-    if (checkTopLevel && skip--) {
-        Jump activationNotCreated;
-        if (checkTopLevel)
-            activationNotCreated = branchTestPtr(Zero, addressFor(m_codeBlock->activationRegister()));
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, next)), regT0);
-        activationNotCreated.link(this);
-    }
-    while (skip--)
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, next)), regT0);
-
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, object)), regT0);
-    emitGetVariableObjectRegister(regT0, currentInstruction[2].u.operand, regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_put_scoped_var(Instruction* currentInstruction)
-{
-    int skip = currentInstruction[2].u.operand;
-
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ScopeChain, regT1);
-    emitGetVirtualRegister(currentInstruction[3].u.operand, regT0);
-    bool checkTopLevel = m_codeBlock->codeType() == FunctionCode && m_codeBlock->needsFullScopeChain();
-    ASSERT(skip || !checkTopLevel);
-    if (checkTopLevel && skip--) {
-        Jump activationNotCreated;
-        if (checkTopLevel)
-            activationNotCreated = branchTestPtr(Zero, addressFor(m_codeBlock->activationRegister()));
-        loadPtr(Address(regT1, OBJECT_OFFSETOF(ScopeChainNode, next)), regT1);
-        activationNotCreated.link(this);
-    }
-    while (skip--)
-        loadPtr(Address(regT1, OBJECT_OFFSETOF(ScopeChainNode, next)), regT1);
-
-    loadPtr(Address(regT1, OBJECT_OFFSETOF(ScopeChainNode, object)), regT1);
-    emitPutVariableObjectRegister(regT0, regT1, currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_tear_off_activation(Instruction* currentInstruction)
-{
-    unsigned activation = currentInstruction[1].u.operand;
-    unsigned arguments = currentInstruction[2].u.operand;
-    Jump activationCreated = branchTestPtr(NonZero, addressFor(activation));
-    Jump argumentsNotCreated = branchTestPtr(Zero, addressFor(arguments));
-    activationCreated.link(this);
-    JITStubCall stubCall(this, cti_op_tear_off_activation);
-    stubCall.addArgument(activation, regT2);
-    stubCall.addArgument(unmodifiedArgumentsRegister(arguments), regT2);
-    stubCall.call();
-    argumentsNotCreated.link(this);
-}
-
-void JIT::emit_op_tear_off_arguments(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-
-    Jump argsNotCreated = branchTestPtr(Zero, Address(callFrameRegister, sizeof(Register) * (unmodifiedArgumentsRegister(dst))));
-    JITStubCall stubCall(this, cti_op_tear_off_arguments);
-    stubCall.addArgument(unmodifiedArgumentsRegister(dst), regT2);
-    stubCall.call();
-    argsNotCreated.link(this);
-}
-
-void JIT::emit_op_ret(Instruction* currentInstruction)
-{
-    // We could JIT generate the deref, only calling out to C when the refcount hits zero.
-    if (m_codeBlock->needsFullScopeChain()) {
-        Jump activationNotCreated = branchTestPtr(Zero, addressFor(m_codeBlock->activationRegister()));
-        JITStubCall(this, cti_op_ret_scopeChain).call();
-        activationNotCreated.link(this);
-    }
-    ASSERT(callFrameRegister != regT1);
-    ASSERT(regT1 != returnValueRegister);
-    ASSERT(returnValueRegister != callFrameRegister);
-
-    // Return the result in %eax.
-    emitGetVirtualRegister(currentInstruction[1].u.operand, returnValueRegister);
-
-    // Grab the return address.
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT1);
-
-    // Restore our caller's "r".
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
-
-    // Return.
-    restoreReturnAddressBeforeReturn(regT1);
-    ret();
-}
-
-void JIT::emit_op_ret_object_or_this(Instruction* currentInstruction)
-{
-    // We could JIT generate the deref, only calling out to C when the refcount hits zero.
-    if (m_codeBlock->needsFullScopeChain()) {
-        Jump activationNotCreated = branchTestPtr(Zero, addressFor(m_codeBlock->activationRegister()));
-        JITStubCall(this, cti_op_ret_scopeChain).call();
-        activationNotCreated.link(this);
-    }
-
-    ASSERT(callFrameRegister != regT1);
-    ASSERT(regT1 != returnValueRegister);
-    ASSERT(returnValueRegister != callFrameRegister);
-
-    // Return the result in %eax.
-    emitGetVirtualRegister(currentInstruction[1].u.operand, returnValueRegister);
-    Jump notJSCell = emitJumpIfNotJSCell(returnValueRegister);
-    loadPtr(Address(returnValueRegister, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    Jump notObject = branch8(NotEqual, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo) + OBJECT_OFFSETOF(TypeInfo, m_type)), Imm32(ObjectType));
-
-    // Grab the return address.
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT1);
-
-    // Restore our caller's "r".
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
-
-    // Return.
-    restoreReturnAddressBeforeReturn(regT1);
-    ret();
-
-    // Return 'this' in %eax.
-    notJSCell.link(this);
-    notObject.link(this);
-    emitGetVirtualRegister(currentInstruction[2].u.operand, returnValueRegister);
-
-    // Grab the return address.
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT1);
-
-    // Restore our caller's "r".
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
-
-    // Return.
-    restoreReturnAddressBeforeReturn(regT1);
-    ret();
-}
-
-void JIT::emit_op_new_array(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_new_array);
-    stubCall.addArgument(Imm32(currentInstruction[2].u.operand));
-    stubCall.addArgument(Imm32(currentInstruction[3].u.operand));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_resolve(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_resolve);
-    stubCall.addArgument(ImmPtr(&m_codeBlock->identifier(currentInstruction[2].u.operand)));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_to_primitive(Instruction* currentInstruction)
-{
-    int dst = currentInstruction[1].u.operand;
-    int src = currentInstruction[2].u.operand;
-
-    emitGetVirtualRegister(src, regT0);
-    
-    Jump isImm = emitJumpIfNotJSCell(regT0);
-    addSlowCase(branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsStringVPtr)));
-    isImm.link(this);
-
-    if (dst != src)
-        emitPutVirtualRegister(dst);
-
-}
-
-void JIT::emit_op_strcat(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_strcat);
-    stubCall.addArgument(Imm32(currentInstruction[2].u.operand));
-    stubCall.addArgument(Imm32(currentInstruction[3].u.operand));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_resolve_base(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, currentInstruction[3].u.operand ? cti_op_resolve_base_strict_put : cti_op_resolve_base);
-    stubCall.addArgument(ImmPtr(&m_codeBlock->identifier(currentInstruction[2].u.operand)));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_ensure_property_exists(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_ensure_property_exists);
-    stubCall.addArgument(Imm32(currentInstruction[1].u.operand));
-    stubCall.addArgument(ImmPtr(&m_codeBlock->identifier(currentInstruction[2].u.operand)));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_resolve_skip(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_resolve_skip);
-    stubCall.addArgument(ImmPtr(&m_codeBlock->identifier(currentInstruction[2].u.operand)));
-    stubCall.addArgument(Imm32(currentInstruction[3].u.operand));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_resolve_global(Instruction* currentInstruction, bool)
-{
-    // Fast case
-    void* globalObject = m_codeBlock->globalObject();
-    unsigned currentIndex = m_globalResolveInfoIndex++;
-    void* structureAddress = &(m_codeBlock->globalResolveInfo(currentIndex).structure);
-    void* offsetAddr = &(m_codeBlock->globalResolveInfo(currentIndex).offset);
-
-    // Check Structure of global object
-    move(ImmPtr(globalObject), regT0);
-    loadPtr(structureAddress, regT1);
-    addSlowCase(branchPtr(NotEqual, regT1, Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)))); // Structures don't match
-
-    // Load cached property
-    // Assume that the global object always uses external storage.
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSGlobalObject, m_externalStorage)), regT0);
-    load32(offsetAddr, regT1);
-    loadPtr(BaseIndex(regT0, regT1, ScalePtr), regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_resolve_global(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    Identifier* ident = &m_codeBlock->identifier(currentInstruction[2].u.operand);
-    
-    unsigned currentIndex = m_globalResolveInfoIndex++;
-    
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_resolve_global);
-    stubCall.addArgument(ImmPtr(ident));
-    stubCall.addArgument(Imm32(currentIndex));
-    stubCall.addArgument(regT0);
-    stubCall.call(dst);
-}
-
-void JIT::emit_op_not(Instruction* currentInstruction)
-{
-    emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
-    xorPtr(Imm32(static_cast<int32_t>(JSImmediate::FullTagTypeBool)), regT0);
-    addSlowCase(branchTestPtr(NonZero, regT0, Imm32(static_cast<int32_t>(~JSImmediate::ExtendedPayloadBitBoolValue))));
-    xorPtr(Imm32(static_cast<int32_t>(JSImmediate::FullTagTypeBool | JSImmediate::ExtendedPayloadBitBoolValue)), regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_jfalse(Instruction* currentInstruction)
-{
-    unsigned target = currentInstruction[2].u.operand;
-    emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
-
-    addJump(branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsNumber(0)))), target);
-    Jump isNonZero = emitJumpIfImmediateInteger(regT0);
-
-    addJump(branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsBoolean(false)))), target);
-    addSlowCase(branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(jsBoolean(true)))));
-
-    isNonZero.link(this);
-    RECORD_JUMP_TARGET(target);
-}
-
-void JIT::emit_op_jeq_null(Instruction* currentInstruction)
-{
-    unsigned src = currentInstruction[1].u.operand;
-    unsigned target = currentInstruction[2].u.operand;
-
-    emitGetVirtualRegister(src, regT0);
-    Jump isImmediate = emitJumpIfNotJSCell(regT0);
-
-    // First, handle JSCell cases - check MasqueradesAsUndefined bit on the structure.
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    addJump(branchTest8(NonZero, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(MasqueradesAsUndefined)), target);
-    Jump wasNotImmediate = jump();
-
-    // Now handle the immediate cases - undefined & null
-    isImmediate.link(this);
-    andPtr(Imm32(~JSImmediate::ExtendedTagBitUndefined), regT0);
-    addJump(branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsNull()))), target);            
-
-    wasNotImmediate.link(this);
-    RECORD_JUMP_TARGET(target);
-};
-void JIT::emit_op_jneq_null(Instruction* currentInstruction)
-{
-    unsigned src = currentInstruction[1].u.operand;
-    unsigned target = currentInstruction[2].u.operand;
-
-    emitGetVirtualRegister(src, regT0);
-    Jump isImmediate = emitJumpIfNotJSCell(regT0);
-
-    // First, handle JSCell cases - check MasqueradesAsUndefined bit on the structure.
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    addJump(branchTest8(Zero, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(MasqueradesAsUndefined)), target);
-    Jump wasNotImmediate = jump();
-
-    // Now handle the immediate cases - undefined & null
-    isImmediate.link(this);
-    andPtr(Imm32(~JSImmediate::ExtendedTagBitUndefined), regT0);
-    addJump(branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(jsNull()))), target);            
-
-    wasNotImmediate.link(this);
-    RECORD_JUMP_TARGET(target);
-}
-
-void JIT::emit_op_jneq_ptr(Instruction* currentInstruction)
-{
-    unsigned src = currentInstruction[1].u.operand;
-    JSCell* ptr = currentInstruction[2].u.jsCell;
-    unsigned target = currentInstruction[3].u.operand;
-    
-    emitGetVirtualRegister(src, regT0);
-    addJump(branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(JSValue(ptr)))), target);            
-
-    RECORD_JUMP_TARGET(target);
-}
-
-void JIT::emit_op_jsr(Instruction* currentInstruction)
-{
-    int retAddrDst = currentInstruction[1].u.operand;
-    int target = currentInstruction[2].u.operand;
-    DataLabelPtr storeLocation = storePtrWithPatch(ImmPtr(0), Address(callFrameRegister, sizeof(Register) * retAddrDst));
-    addJump(jump(), target);
-    m_jsrSites.append(JSRInfo(storeLocation, label()));
-    killLastResultRegister();
-    RECORD_JUMP_TARGET(target);
-}
-
-void JIT::emit_op_sret(Instruction* currentInstruction)
-{
-    jump(Address(callFrameRegister, sizeof(Register) * currentInstruction[1].u.operand));
-    killLastResultRegister();
-}
-
-void JIT::emit_op_eq(Instruction* currentInstruction)
-{
-    emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
-    emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
-    set32Compare32(Equal, regT1, regT0, regT0);
-    emitTagAsBoolImmediate(regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_bitnot(Instruction* currentInstruction)
-{
-    emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
-    emitJumpSlowCaseIfNotImmediateInteger(regT0);
-    not32(regT0);
-    emitFastArithIntToImmNoCheck(regT0, regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_resolve_with_base(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_resolve_with_base);
-    stubCall.addArgument(ImmPtr(&m_codeBlock->identifier(currentInstruction[3].u.operand)));
-    stubCall.addArgument(Imm32(currentInstruction[1].u.operand));
-    stubCall.call(currentInstruction[2].u.operand);
-}
-
-void JIT::emit_op_new_func_exp(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_new_func_exp);
-    stubCall.addArgument(ImmPtr(m_codeBlock->functionExpr(currentInstruction[2].u.operand)));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_jtrue(Instruction* currentInstruction)
-{
-    unsigned target = currentInstruction[2].u.operand;
-    emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
-
-    Jump isZero = branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsNumber(0))));
-    addJump(emitJumpIfImmediateInteger(regT0), target);
-
-    addJump(branchPtr(Equal, regT0, ImmPtr(JSValue::encode(jsBoolean(true)))), target);
-    addSlowCase(branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(jsBoolean(false)))));
-
-    isZero.link(this);
-    RECORD_JUMP_TARGET(target);
-}
-
-void JIT::emit_op_neq(Instruction* currentInstruction)
-{
-    emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
-    emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
-    set32Compare32(NotEqual, regT1, regT0, regT0);
-    emitTagAsBoolImmediate(regT0);
-
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-
-}
-
-void JIT::emit_op_bitxor(Instruction* currentInstruction)
-{
-    emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
-    emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
-    xorPtr(regT1, regT0);
-    emitFastArithReTagImmediate(regT0, regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_bitor(Instruction* currentInstruction)
-{
-    emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
-    emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
-    orPtr(regT1, regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_throw(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_throw);
-    stubCall.addArgument(currentInstruction[1].u.operand, regT2);
-    stubCall.call();
-    ASSERT(regT0 == returnValueRegister);
-#ifndef NDEBUG
-    // cti_op_throw always changes it's return address,
-    // this point in the code should never be reached.
-    breakpoint();
-#endif
-}
-
-void JIT::emit_op_get_pnames(Instruction* currentInstruction)
-{
-    int dst = currentInstruction[1].u.operand;
-    int base = currentInstruction[2].u.operand;
-    int i = currentInstruction[3].u.operand;
-    int size = currentInstruction[4].u.operand;
-    int breakTarget = currentInstruction[5].u.operand;
-
-    JumpList isNotObject;
-
-    emitGetVirtualRegister(base, regT0);
-    if (!m_codeBlock->isKnownNotImmediate(base))
-        isNotObject.append(emitJumpIfNotJSCell(regT0));
-    if (base != m_codeBlock->thisRegister() || m_codeBlock->isStrictMode()) {
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-        isNotObject.append(branch8(NotEqual, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo.m_type)), Imm32(ObjectType)));
-    }
-
-    // We could inline the case where you have a valid cache, but
-    // this call doesn't seem to be hot.
-    Label isObject(this);
-    JITStubCall getPnamesStubCall(this, cti_op_get_pnames);
-    getPnamesStubCall.addArgument(regT0);
-    getPnamesStubCall.call(dst);
-    load32(Address(regT0, OBJECT_OFFSETOF(JSPropertyNameIterator, m_jsStringsSize)), regT3);
-    store32(Imm32(0), addressFor(i));
-    store32(regT3, addressFor(size));
-    Jump end = jump();
-
-    isNotObject.link(this);
-    move(regT0, regT1);
-    and32(Imm32(~JSImmediate::ExtendedTagBitUndefined), regT1);
-    addJump(branch32(Equal, regT1, Imm32(JSImmediate::FullTagTypeNull)), breakTarget);
-
-    JITStubCall toObjectStubCall(this, cti_to_object);
-    toObjectStubCall.addArgument(regT0);
-    toObjectStubCall.call(base);
-    jump().linkTo(isObject, this);
-    
-    end.link(this);
-}
-
-void JIT::emit_op_next_pname(Instruction* currentInstruction)
-{
-    int dst = currentInstruction[1].u.operand;
-    int base = currentInstruction[2].u.operand;
-    int i = currentInstruction[3].u.operand;
-    int size = currentInstruction[4].u.operand;
-    int it = currentInstruction[5].u.operand;
-    int target = currentInstruction[6].u.operand;
-    
-    JumpList callHasProperty;
-
-    Label begin(this);
-    load32(addressFor(i), regT0);
-    Jump end = branch32(Equal, regT0, addressFor(size));
-
-    // Grab key @ i
-    loadPtr(addressFor(it), regT1);
-    loadPtr(Address(regT1, OBJECT_OFFSETOF(JSPropertyNameIterator, m_jsStrings)), regT2);
-
-    loadPtr(BaseIndex(regT2, regT0, TimesEight), regT2);
-
-    emitPutVirtualRegister(dst, regT2);
-
-    // Increment i
-    add32(Imm32(1), regT0);
-    store32(regT0, addressFor(i));
-
-    // Verify that i is valid:
-    emitGetVirtualRegister(base, regT0);
-
-    // Test base's structure
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    callHasProperty.append(branchPtr(NotEqual, regT2, Address(Address(regT1, OBJECT_OFFSETOF(JSPropertyNameIterator, m_cachedStructure)))));
-
-    // Test base's prototype chain
-    loadPtr(Address(Address(regT1, OBJECT_OFFSETOF(JSPropertyNameIterator, m_cachedPrototypeChain))), regT3);
-    loadPtr(Address(regT3, OBJECT_OFFSETOF(StructureChain, m_vector)), regT3);
-    addJump(branchTestPtr(Zero, Address(regT3)), target);
-
-    Label checkPrototype(this);
-    loadPtr(Address(regT2, OBJECT_OFFSETOF(Structure, m_prototype)), regT2);
-    callHasProperty.append(emitJumpIfNotJSCell(regT2));
-    loadPtr(Address(regT2, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    callHasProperty.append(branchPtr(NotEqual, regT2, Address(regT3)));
-    addPtr(Imm32(sizeof(Structure*)), regT3);
-    branchTestPtr(NonZero, Address(regT3)).linkTo(checkPrototype, this);
-
-    // Continue loop.
-    addJump(jump(), target);
-
-    // Slow case: Ask the object if i is valid.
-    callHasProperty.link(this);
-    emitGetVirtualRegister(dst, regT1);
-    JITStubCall stubCall(this, cti_has_property);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call();
-
-    // Test for valid key.
-    addJump(branchTest32(NonZero, regT0), target);
-    jump().linkTo(begin, this);
-
-    // End of loop.
-    end.link(this);
-}
-
-void JIT::emit_op_push_scope(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_push_scope);
-    stubCall.addArgument(currentInstruction[1].u.operand, regT2);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_pop_scope(Instruction*)
-{
-    JITStubCall(this, cti_op_pop_scope).call();
-}
-
-void JIT::compileOpStrictEq(Instruction* currentInstruction, CompileOpStrictEqType type)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned src1 = currentInstruction[2].u.operand;
-    unsigned src2 = currentInstruction[3].u.operand;
-
-    emitGetVirtualRegisters(src1, regT0, src2, regT1);
-
-    // Jump to a slow case if either operand is a number, or if both are JSCell*s.
-    move(regT0, regT2);
-    orPtr(regT1, regT2);
-    addSlowCase(emitJumpIfJSCell(regT2));
-    addSlowCase(emitJumpIfImmediateNumber(regT2));
-
-    if (type == OpStrictEq)
-        set32Compare32(Equal, regT1, regT0, regT0);
-    else
-        set32Compare32(NotEqual, regT1, regT0, regT0);
-    emitTagAsBoolImmediate(regT0);
-
-    emitPutVirtualRegister(dst);
-}
-
-void JIT::emit_op_stricteq(Instruction* currentInstruction)
-{
-    compileOpStrictEq(currentInstruction, OpStrictEq);
-}
-
-void JIT::emit_op_nstricteq(Instruction* currentInstruction)
-{
-    compileOpStrictEq(currentInstruction, OpNStrictEq);
-}
-
-void JIT::emit_op_to_jsnumber(Instruction* currentInstruction)
-{
-    int srcVReg = currentInstruction[2].u.operand;
-    emitGetVirtualRegister(srcVReg, regT0);
-    
-    Jump wasImmediate = emitJumpIfImmediateInteger(regT0);
-
-    emitJumpSlowCaseIfNotJSCell(regT0, srcVReg);
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    addSlowCase(branch8(NotEqual, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo.m_type)), Imm32(NumberType)));
-    
-    wasImmediate.link(this);
-
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_push_new_scope(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_push_new_scope);
-    stubCall.addArgument(ImmPtr(&m_codeBlock->identifier(currentInstruction[2].u.operand)));
-    stubCall.addArgument(currentInstruction[3].u.operand, regT2);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_catch(Instruction* currentInstruction)
-{
-    killLastResultRegister(); // FIXME: Implicitly treat op_catch as a labeled statement, and remove this line of code.
-    move(regT0, callFrameRegister);
-    peek(regT3, OBJECT_OFFSETOF(struct JITStackFrame, globalData) / sizeof(void*));
-    loadPtr(Address(regT3, OBJECT_OFFSETOF(JSGlobalData, exception)), regT0);
-    storePtr(ImmPtr(JSValue::encode(JSValue())), Address(regT3, OBJECT_OFFSETOF(JSGlobalData, exception)));
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_jmp_scopes(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_jmp_scopes);
-    stubCall.addArgument(Imm32(currentInstruction[1].u.operand));
-    stubCall.call();
-    addJump(jump(), currentInstruction[2].u.operand);
-    RECORD_JUMP_TARGET(currentInstruction[2].u.operand);
-}
-
-void JIT::emit_op_switch_imm(Instruction* currentInstruction)
-{
-    unsigned tableIndex = currentInstruction[1].u.operand;
-    unsigned defaultOffset = currentInstruction[2].u.operand;
-    unsigned scrutinee = currentInstruction[3].u.operand;
-
-    // create jump table for switch destinations, track this switch statement.
-    SimpleJumpTable* jumpTable = &m_codeBlock->immediateSwitchJumpTable(tableIndex);
-    m_switches.append(SwitchRecord(jumpTable, m_bytecodeOffset, defaultOffset, SwitchRecord::Immediate));
-    jumpTable->ctiOffsets.grow(jumpTable->branchOffsets.size());
-
-    JITStubCall stubCall(this, cti_op_switch_imm);
-    stubCall.addArgument(scrutinee, regT2);
-    stubCall.addArgument(Imm32(tableIndex));
-    stubCall.call();
-    jump(regT0);
-}
-
-void JIT::emit_op_switch_char(Instruction* currentInstruction)
-{
-    unsigned tableIndex = currentInstruction[1].u.operand;
-    unsigned defaultOffset = currentInstruction[2].u.operand;
-    unsigned scrutinee = currentInstruction[3].u.operand;
-
-    // create jump table for switch destinations, track this switch statement.
-    SimpleJumpTable* jumpTable = &m_codeBlock->characterSwitchJumpTable(tableIndex);
-    m_switches.append(SwitchRecord(jumpTable, m_bytecodeOffset, defaultOffset, SwitchRecord::Character));
-    jumpTable->ctiOffsets.grow(jumpTable->branchOffsets.size());
-
-    JITStubCall stubCall(this, cti_op_switch_char);
-    stubCall.addArgument(scrutinee, regT2);
-    stubCall.addArgument(Imm32(tableIndex));
-    stubCall.call();
-    jump(regT0);
-}
-
-void JIT::emit_op_switch_string(Instruction* currentInstruction)
-{
-    unsigned tableIndex = currentInstruction[1].u.operand;
-    unsigned defaultOffset = currentInstruction[2].u.operand;
-    unsigned scrutinee = currentInstruction[3].u.operand;
-
-    // create jump table for switch destinations, track this switch statement.
-    StringJumpTable* jumpTable = &m_codeBlock->stringSwitchJumpTable(tableIndex);
-    m_switches.append(SwitchRecord(jumpTable, m_bytecodeOffset, defaultOffset));
-
-    JITStubCall stubCall(this, cti_op_switch_string);
-    stubCall.addArgument(scrutinee, regT2);
-    stubCall.addArgument(Imm32(tableIndex));
-    stubCall.call();
-    jump(regT0);
-}
-
-void JIT::emit_op_throw_reference_error(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_throw_reference_error);
-    stubCall.addArgument(ImmPtr(JSValue::encode(m_codeBlock->getConstant(currentInstruction[1].u.operand))));
-    stubCall.call();
-}
-
-void JIT::emit_op_throw_syntax_error(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_throw_syntax_error);
-    stubCall.addArgument(ImmPtr(JSValue::encode(m_codeBlock->getConstant(currentInstruction[1].u.operand))));
-    stubCall.call();
-}
-
-void JIT::emit_op_debug(Instruction* currentInstruction)
-{
-#if ENABLE(DEBUG_WITH_BREAKPOINT)
-    UNUSED_PARAM(currentInstruction);
-    breakpoint();
-#else
-    JITStubCall stubCall(this, cti_op_debug);
-    stubCall.addArgument(Imm32(currentInstruction[1].u.operand));
-    stubCall.addArgument(Imm32(currentInstruction[2].u.operand));
-    stubCall.addArgument(Imm32(currentInstruction[3].u.operand));
-    stubCall.call();
-#endif
-}
-
-void JIT::emit_op_eq_null(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned src1 = currentInstruction[2].u.operand;
-
-    emitGetVirtualRegister(src1, regT0);
-    Jump isImmediate = emitJumpIfNotJSCell(regT0);
-
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    set32Test8(NonZero, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(MasqueradesAsUndefined), regT0);
-
-    Jump wasNotImmediate = jump();
-
-    isImmediate.link(this);
-
-    andPtr(Imm32(~JSImmediate::ExtendedTagBitUndefined), regT0);
-    setPtr(Equal, regT0, Imm32(JSImmediate::FullTagTypeNull), regT0);
-
-    wasNotImmediate.link(this);
-
-    emitTagAsBoolImmediate(regT0);
-    emitPutVirtualRegister(dst);
-
-}
-
-void JIT::emit_op_neq_null(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned src1 = currentInstruction[2].u.operand;
-
-    emitGetVirtualRegister(src1, regT0);
-    Jump isImmediate = emitJumpIfNotJSCell(regT0);
-
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
-    set32Test8(Zero, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(MasqueradesAsUndefined), regT0);
-
-    Jump wasNotImmediate = jump();
-
-    isImmediate.link(this);
-
-    andPtr(Imm32(~JSImmediate::ExtendedTagBitUndefined), regT0);
-    setPtr(NotEqual, regT0, Imm32(JSImmediate::FullTagTypeNull), regT0);
-
-    wasNotImmediate.link(this);
-
-    emitTagAsBoolImmediate(regT0);
-    emitPutVirtualRegister(dst);
-}
-
-void JIT::emit_op_enter(Instruction*)
-{
-    // Even though CTI doesn't use them, we initialize our constant
-    // registers to zap stale pointers, to avoid unnecessarily prolonging
-    // object lifetime and increasing GC pressure.
-    size_t count = m_codeBlock->m_numVars;
-    for (size_t j = 0; j < count; ++j)
-        emitInitRegister(j);
-
-}
-
-void JIT::emit_op_create_activation(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    
-    Jump activationCreated = branchTestPtr(NonZero, Address(callFrameRegister, sizeof(Register) * dst));
-    JITStubCall(this, cti_op_push_activation).call(currentInstruction[1].u.operand);
-    emitPutVirtualRegister(dst);
-    activationCreated.link(this);
-}
-
-void JIT::emit_op_create_arguments(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-
-    Jump argsCreated = branchTestPtr(NonZero, Address(callFrameRegister, sizeof(Register) * dst));
-    if (m_codeBlock->m_numParameters == 1)
-        JITStubCall(this, cti_op_create_arguments_no_params).call();
-    else
-        JITStubCall(this, cti_op_create_arguments).call();
-    emitPutVirtualRegister(dst);
-    emitPutVirtualRegister(unmodifiedArgumentsRegister(dst));
-    argsCreated.link(this);
-}
-
-void JIT::emit_op_init_lazy_reg(Instruction* currentInstruction)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-
-    storePtr(ImmPtr(0), Address(callFrameRegister, sizeof(Register) * dst));
-}
-
-void JIT::emit_op_convert_this(Instruction* currentInstruction)
-{
-    emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
-
-    emitJumpSlowCaseIfNotJSCell(regT0);
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT1);
-    addSlowCase(branchTest8(NonZero, Address(regT1, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(NeedsThisConversion)));
-}
-
-void JIT::emit_op_convert_this_strict(Instruction* currentInstruction)
-{
-    emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
-    Jump notNull = branchTestPtr(NonZero, regT0);
-    move(ImmPtr(JSValue::encode(jsNull())), regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand, regT0);
-    Jump setThis = jump();
-    notNull.link(this);
-    Jump isImmediate = emitJumpIfNotJSCell(regT0);
-    loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT1);
-    Jump notAnObject = branch8(NotEqual, Address(regT1, OBJECT_OFFSETOF(Structure, m_typeInfo.m_type)), Imm32(ObjectType));
-    addSlowCase(branchTest8(NonZero, Address(regT1, OBJECT_OFFSETOF(Structure, m_typeInfo.m_flags)), Imm32(NeedsThisConversion)));
-    isImmediate.link(this);
-    notAnObject.link(this);
-    setThis.link(this);
-}
-
-void JIT::emit_op_get_callee(Instruction* currentInstruction)
-{
-    unsigned result = currentInstruction[1].u.operand;
-    emitGetFromCallFrameHeaderPtr(RegisterFile::Callee, regT0);
-    emitPutVirtualRegister(result);
-}
-
-void JIT::emit_op_create_this(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_create_this);
-    stubCall.addArgument(currentInstruction[2].u.operand, regT1);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_profile_will_call(Instruction* currentInstruction)
-{
-    peek(regT1, OBJECT_OFFSETOF(JITStackFrame, enabledProfilerReference) / sizeof(void*));
-    Jump noProfiler = branchTestPtr(Zero, Address(regT1));
-
-    JITStubCall stubCall(this, cti_op_profile_will_call);
-    stubCall.addArgument(currentInstruction[1].u.operand, regT1);
-    stubCall.call();
-    noProfiler.link(this);
-
-}
-
-void JIT::emit_op_profile_did_call(Instruction* currentInstruction)
-{
-    peek(regT1, OBJECT_OFFSETOF(JITStackFrame, enabledProfilerReference) / sizeof(void*));
-    Jump noProfiler = branchTestPtr(Zero, Address(regT1));
-
-    JITStubCall stubCall(this, cti_op_profile_did_call);
-    stubCall.addArgument(currentInstruction[1].u.operand, regT1);
-    stubCall.call();
-    noProfiler.link(this);
-}
-
-
-// Slow cases
-
-void JIT::emitSlow_op_convert_this(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_convert_this);
-    stubCall.addArgument(regT0);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_convert_this_strict(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_convert_this_strict);
-    stubCall.addArgument(regT0);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_to_primitive(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-
-    JITStubCall stubCall(this, cti_op_to_primitive);
-    stubCall.addArgument(regT0);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_loop_if_lesseq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned op2 = currentInstruction[2].u.operand;
-    unsigned target = currentInstruction[3].u.operand;
-    if (isOperandConstantImmediateInt(op2)) {
-        linkSlowCase(iter);
-        JITStubCall stubCall(this, cti_op_loop_if_lesseq);
-        stubCall.addArgument(regT0);
-        stubCall.addArgument(currentInstruction[2].u.operand, regT2);
-        stubCall.call();
-        emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
-    } else {
-        linkSlowCase(iter);
-        linkSlowCase(iter);
-        JITStubCall stubCall(this, cti_op_loop_if_lesseq);
-        stubCall.addArgument(regT0);
-        stubCall.addArgument(regT1);
-        stubCall.call();
-        emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
-    }
-}
-
-void JIT::emitSlow_op_put_by_val(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned base = currentInstruction[1].u.operand;
-    unsigned property = currentInstruction[2].u.operand;
-    unsigned value = currentInstruction[3].u.operand;
-
-    linkSlowCase(iter); // property int32 check
-    linkSlowCaseIfNotJSCell(iter, base); // base cell check
-    linkSlowCase(iter); // base not array check
-    linkSlowCase(iter); // in vector check
-
-    JITStubCall stubPutByValCall(this, cti_op_put_by_val);
-    stubPutByValCall.addArgument(regT0);
-    stubPutByValCall.addArgument(property, regT2);
-    stubPutByValCall.addArgument(value, regT2);
-    stubPutByValCall.call();
-}
-
-void JIT::emitSlow_op_not(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    xorPtr(Imm32(static_cast<int32_t>(JSImmediate::FullTagTypeBool)), regT0);
-    JITStubCall stubCall(this, cti_op_not);
-    stubCall.addArgument(regT0);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_jfalse(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_jtrue);
-    stubCall.addArgument(regT0);
-    stubCall.call();
-    emitJumpSlowToHot(branchTest32(Zero, regT0), currentInstruction[2].u.operand); // inverted!
-}
-
-void JIT::emitSlow_op_bitnot(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_bitnot);
-    stubCall.addArgument(regT0);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_jtrue(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_jtrue);
-    stubCall.addArgument(regT0);
-    stubCall.call();
-    emitJumpSlowToHot(branchTest32(NonZero, regT0), currentInstruction[2].u.operand);
-}
-
-void JIT::emitSlow_op_bitxor(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_bitxor);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_bitor(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_bitor);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_eq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_eq);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call();
-    emitTagAsBoolImmediate(regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_neq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_eq);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call();
-    xor32(Imm32(0x1), regT0);
-    emitTagAsBoolImmediate(regT0);
-    emitPutVirtualRegister(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_stricteq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_stricteq);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_nstricteq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_nstricteq);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(regT1);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emitSlow_op_check_has_instance(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned baseVal = currentInstruction[1].u.operand;
-
-    linkSlowCaseIfNotJSCell(iter, baseVal);
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_check_has_instance);
-    stubCall.addArgument(baseVal, regT2);
-    stubCall.call();
-}
-
-void JIT::emitSlow_op_instanceof(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned value = currentInstruction[2].u.operand;
-    unsigned baseVal = currentInstruction[3].u.operand;
-    unsigned proto = currentInstruction[4].u.operand;
-
-    linkSlowCaseIfNotJSCell(iter, value);
-    linkSlowCaseIfNotJSCell(iter, proto);
-    linkSlowCase(iter);
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_instanceof);
-    stubCall.addArgument(value, regT2);
-    stubCall.addArgument(baseVal, regT2);
-    stubCall.addArgument(proto, regT2);
-    stubCall.call(dst);
-}
-
-void JIT::emitSlow_op_call(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    compileOpCallSlowCase(currentInstruction, iter, m_callLinkInfoIndex++, op_call);
-}
-
-void JIT::emitSlow_op_call_eval(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    compileOpCallSlowCase(currentInstruction, iter, m_callLinkInfoIndex++, op_call_eval);
-}
-
-void JIT::emitSlow_op_call_varargs(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    compileOpCallVarargsSlowCase(currentInstruction, iter);
-}
-
-void JIT::emitSlow_op_construct(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    compileOpCallSlowCase(currentInstruction, iter, m_callLinkInfoIndex++, op_construct);
-}
-
-void JIT::emitSlow_op_to_jsnumber(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCaseIfNotJSCell(iter, currentInstruction[2].u.operand);
-    linkSlowCase(iter);
-
-    JITStubCall stubCall(this, cti_op_to_jsnumber);
-    stubCall.addArgument(regT0);
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_get_arguments_length(Instruction* currentInstruction)
-{
-    int dst = currentInstruction[1].u.operand;
-    int argumentsRegister = currentInstruction[2].u.operand;
-    addSlowCase(branchTestPtr(NonZero, addressFor(argumentsRegister)));
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT0);
-    sub32(Imm32(1), regT0);
-    emitFastArithReTagImmediate(regT0, regT0);
-    emitPutVirtualRegister(dst, regT0);
-}
-
-void JIT::emitSlow_op_get_arguments_length(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    linkSlowCase(iter);
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned base = currentInstruction[2].u.operand;
-    Identifier* ident = &(m_codeBlock->identifier(currentInstruction[3].u.operand));
-    
-    emitGetVirtualRegister(base, regT0);
-    JITStubCall stubCall(this, cti_op_get_by_id_generic);
-    stubCall.addArgument(regT0);
-    stubCall.addArgument(ImmPtr(ident));
-    stubCall.call(dst);
-}
-
-void JIT::emit_op_get_argument_by_val(Instruction* currentInstruction)
-{
-    int dst = currentInstruction[1].u.operand;
-    int argumentsRegister = currentInstruction[2].u.operand;
-    int property = currentInstruction[3].u.operand;
-    addSlowCase(branchTestPtr(NonZero, addressFor(argumentsRegister)));
-    emitGetVirtualRegister(property, regT1);
-    addSlowCase(emitJumpIfNotImmediateInteger(regT1));
-    add32(Imm32(1), regT1);
-    // regT1 now contains the integer index of the argument we want, including this
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT2);
-    addSlowCase(branch32(AboveOrEqual, regT1, regT2));
-    
-    Jump skipOutofLineParams;
-    int numArgs = m_codeBlock->m_numParameters;
-    if (numArgs) {
-        Jump notInInPlaceArgs = branch32(AboveOrEqual, regT1, Imm32(numArgs));
-        addPtr(Imm32(static_cast<unsigned>(-(RegisterFile::CallFrameHeaderSize + numArgs) * sizeof(Register))), callFrameRegister, regT0);
-        loadPtr(BaseIndex(regT0, regT1, TimesEight, 0), regT0);
-        skipOutofLineParams = jump();
-        notInInPlaceArgs.link(this);
-    }
-    
-    addPtr(Imm32(static_cast<unsigned>(-(RegisterFile::CallFrameHeaderSize + numArgs) * sizeof(Register))), callFrameRegister, regT0);
-    mul32(Imm32(sizeof(Register)), regT2, regT2);
-    subPtr(regT2, regT0);
-    loadPtr(BaseIndex(regT0, regT1, TimesEight, 0), regT0);
-    if (numArgs)
-        skipOutofLineParams.link(this);
-    emitPutVirtualRegister(dst, regT0);
-}
-
-void JIT::emitSlow_op_get_argument_by_val(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    unsigned arguments = currentInstruction[2].u.operand;
-    unsigned property = currentInstruction[3].u.operand;
-    
-    linkSlowCase(iter);
-    Jump skipArgumentsCreation = jump();
-    
-    linkSlowCase(iter);
-    linkSlowCase(iter);
-    if (m_codeBlock->m_numParameters == 1)
-        JITStubCall(this, cti_op_create_arguments_no_params).call();
-    else
-        JITStubCall(this, cti_op_create_arguments).call();
-    emitPutVirtualRegister(arguments);
-    emitPutVirtualRegister(unmodifiedArgumentsRegister(arguments));
-    
-    skipArgumentsCreation.link(this);
-    JITStubCall stubCall(this, cti_op_get_by_val);
-    stubCall.addArgument(arguments, regT2);
-    stubCall.addArgument(property, regT2);
-    stubCall.call(dst);
-}
-
-#endif // USE(JSVALUE64)
-
-void JIT::emit_op_resolve_global_dynamic(Instruction* currentInstruction)
-{
-    int skip = currentInstruction[5].u.operand;
-    
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ScopeChain, regT0);
-    
-    bool checkTopLevel = m_codeBlock->codeType() == FunctionCode && m_codeBlock->needsFullScopeChain();
-    ASSERT(skip || !checkTopLevel);
-    if (checkTopLevel && skip--) {
-        Jump activationNotCreated;
-        if (checkTopLevel)
-            activationNotCreated = branchTestPtr(Zero, addressFor(m_codeBlock->activationRegister()));
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, object)), regT1);
-        addSlowCase(checkStructure(regT1, m_globalData->activationStructure.get()));
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, next)), regT0);
-        activationNotCreated.link(this);
-    }
-    while (skip--) {
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, object)), regT1);
-        addSlowCase(checkStructure(regT1, m_globalData->activationStructure.get()));
-        loadPtr(Address(regT0, OBJECT_OFFSETOF(ScopeChainNode, next)), regT0);
-    }
-    emit_op_resolve_global(currentInstruction, true);
-}
-
-void JIT::emitSlow_op_resolve_global_dynamic(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    unsigned dst = currentInstruction[1].u.operand;
-    Identifier* ident = &m_codeBlock->identifier(currentInstruction[2].u.operand);
-    int skip = currentInstruction[5].u.operand;
-    while (skip--)
-        linkSlowCase(iter);
-    JITStubCall resolveStubCall(this, cti_op_resolve);
-    resolveStubCall.addArgument(ImmPtr(ident));
-    resolveStubCall.call(dst);
-    emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_resolve_global_dynamic));
-    
-    unsigned currentIndex = m_globalResolveInfoIndex++;
-    
-    linkSlowCase(iter); // We managed to skip all the nodes in the scope chain, but the cache missed.
-    JITStubCall stubCall(this, cti_op_resolve_global);
-    stubCall.addArgument(ImmPtr(ident));
-    stubCall.addArgument(Imm32(currentIndex));
-    stubCall.addArgument(regT0);
-    stubCall.call(dst);
-}
-
-void JIT::emit_op_new_regexp(Instruction* currentInstruction)
-{
-    JITStubCall stubCall(this, cti_op_new_regexp);
-    stubCall.addArgument(ImmPtr(m_codeBlock->regexp(currentInstruction[2].u.operand)));
-    stubCall.call(currentInstruction[1].u.operand);
-}
-
-void JIT::emit_op_load_varargs(Instruction* currentInstruction)
-{
-    int argCountDst = currentInstruction[1].u.operand;
-    int argsOffset = currentInstruction[2].u.operand;
-    int registerOffset = currentInstruction[3].u.operand;
-    ASSERT(argsOffset <= registerOffset);
-    
-    int expectedParams = m_codeBlock->m_numParameters - 1;
-    // Don't do inline copying if we aren't guaranteed to have a single stream
-    // of arguments
-    if (expectedParams) {
-        JITStubCall stubCall(this, cti_op_load_varargs);
-        stubCall.addArgument(Imm32(argsOffset));
-        stubCall.call();
-        // Stores a naked int32 in the register file.
-        store32(returnValueRegister, Address(callFrameRegister, argCountDst * sizeof(Register)));
-        return;
-    }
-
-#if USE(JSVALUE32_64)
-    addSlowCase(branch32(NotEqual, tagFor(argsOffset), Imm32(JSValue::EmptyValueTag)));
-#else
-    addSlowCase(branchTestPtr(NonZero, addressFor(argsOffset)));
-#endif
-    // Load arg count into regT0
-    emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT0);
-    storePtr(regT0, addressFor(argCountDst));
-    Jump endBranch = branch32(Equal, regT0, Imm32(1));
-
-    mul32(Imm32(sizeof(Register)), regT0, regT3);
-    addPtr(Imm32(static_cast<unsigned>(sizeof(Register) - RegisterFile::CallFrameHeaderSize * sizeof(Register))), callFrameRegister, regT1);
-    subPtr(regT3, regT1); // regT1 is now the start of the out of line arguments
-    addPtr(Imm32(argsOffset * sizeof(Register)), callFrameRegister, regT2); // regT2 is the target buffer
-    
-    // Bounds check the registerfile
-    addPtr(regT2, regT3);
-    addPtr(Imm32((registerOffset - argsOffset) * sizeof(Register)), regT3);
-    addSlowCase(branchPtr(Below, AbsoluteAddress(&m_globalData->interpreter->registerFile().m_end), regT3));
-
-    sub32(Imm32(1), regT0);
-    Label loopStart = label();
-    loadPtr(BaseIndex(regT1, regT0, TimesEight, static_cast<unsigned>(0 - 2 * sizeof(Register))), regT3);
-    storePtr(regT3, BaseIndex(regT2, regT0, TimesEight, static_cast<unsigned>(0 - sizeof(Register))));
-#if USE(JSVALUE32_64)
-    loadPtr(BaseIndex(regT1, regT0, TimesEight, static_cast<unsigned>(sizeof(void*) - 2 * sizeof(Register))), regT3);
-    storePtr(regT3, BaseIndex(regT2, regT0, TimesEight, static_cast<unsigned>(sizeof(void*) - sizeof(Register))));
-#endif
-    branchSubPtr(NonZero, Imm32(1), regT0).linkTo(loopStart, this);
-    endBranch.link(this);
-}
-
-void JIT::emitSlow_op_load_varargs(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-    int argCountDst = currentInstruction[1].u.operand;
-    int argsOffset = currentInstruction[2].u.operand;
-    int expectedParams = m_codeBlock->m_numParameters - 1;
-    if (expectedParams)
-        return;
-    
-    linkSlowCase(iter);
-    linkSlowCase(iter);
-    JITStubCall stubCall(this, cti_op_load_varargs);
-    stubCall.addArgument(Imm32(argsOffset));
-    stubCall.call();
-    // Stores a naked int32 in the register file.
-    store32(returnValueRegister, Address(callFrameRegister, argCountDst * sizeof(Register)));
-}
-
-void JIT::emit_op_new_func(Instruction* currentInstruction)
-{
-    Jump lazyJump;
-    int dst = currentInstruction[1].u.operand;
-    if (currentInstruction[3].u.operand) {
-#if USE(JSVALUE32_64)
-        lazyJump = branch32(NotEqual, tagFor(dst), Imm32(JSValue::EmptyValueTag));
-#else
-        lazyJump = branchTestPtr(NonZero, addressFor(dst));
-#endif
-    }
-    JITStubCall stubCall(this, cti_op_new_func);
-    stubCall.addArgument(ImmPtr(m_codeBlock->functionDecl(currentInstruction[2].u.operand)));
-    stubCall.call(currentInstruction[1].u.operand);
-    if (currentInstruction[3].u.operand)
-        lazyJump.link(this);
-}
-
-} // namespace JSC
-
-#endif // ENABLE(JIT)