Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 0 insertions, 1046 deletions

diff --git a/JavaScriptCore/jit/JIT.h b/JavaScriptCore/jit/JIT.h
deleted file mode 100644
index 907a774..0000000
--- a/JavaScriptCore/jit/JIT.h
+++ /dev/null
@@ -1,1046 +0,0 @@
-/*
- * 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. 
- */
-
-#ifndef JIT_h
-#define JIT_h
-
-#if ENABLE(JIT)
-
-// We've run into some problems where changing the size of the class JIT leads to
-// performance fluctuations.  Try forcing alignment in an attempt to stabalize this.
-#if COMPILER(GCC)
-#define JIT_CLASS_ALIGNMENT __attribute__ ((aligned (32)))
-#else
-#define JIT_CLASS_ALIGNMENT
-#endif
-
-#define ASSERT_JIT_OFFSET(actual, expected) ASSERT_WITH_MESSAGE(actual == expected, "JIT Offset \"%s\" should be %d, not %d.\n", #expected, static_cast<int>(actual), static_cast<int>(expected));
-
-#include "CodeBlock.h"
-#include "Interpreter.h"
-#include "JSInterfaceJIT.h"
-#include "Opcode.h"
-#include "Profiler.h"
-#include <bytecode/SamplingTool.h>
-
-namespace JSC {
-
-    class CodeBlock;
-    class JIT;
-    class JSPropertyNameIterator;
-    class Interpreter;
-    class Register;
-    class RegisterFile;
-    class ScopeChainNode;
-    class StructureChain;
-
-    struct CallLinkInfo;
-    struct Instruction;
-    struct OperandTypes;
-    struct PolymorphicAccessStructureList;
-    struct SimpleJumpTable;
-    struct StringJumpTable;
-    struct StructureStubInfo;
-
-    struct CallRecord {
-        MacroAssembler::Call from;
-        unsigned bytecodeOffset;
-        void* to;
-
-        CallRecord()
-        {
-        }
-
-        CallRecord(MacroAssembler::Call from, unsigned bytecodeOffset, void* to = 0)
-            : from(from)
-            , bytecodeOffset(bytecodeOffset)
-            , to(to)
-        {
-        }
-    };
-
-    struct JumpTable {
-        MacroAssembler::Jump from;
-        unsigned toBytecodeOffset;
-
-        JumpTable(MacroAssembler::Jump f, unsigned t)
-            : from(f)
-            , toBytecodeOffset(t)
-        {
-        }
-    };
-
-    struct SlowCaseEntry {
-        MacroAssembler::Jump from;
-        unsigned to;
-        unsigned hint;
-        
-        SlowCaseEntry(MacroAssembler::Jump f, unsigned t, unsigned h = 0)
-            : from(f)
-            , to(t)
-            , hint(h)
-        {
-        }
-    };
-
-    struct SwitchRecord {
-        enum Type {
-            Immediate,
-            Character,
-            String
-        };
-
-        Type type;
-
-        union {
-            SimpleJumpTable* simpleJumpTable;
-            StringJumpTable* stringJumpTable;
-        } jumpTable;
-
-        unsigned bytecodeOffset;
-        unsigned defaultOffset;
-
-        SwitchRecord(SimpleJumpTable* jumpTable, unsigned bytecodeOffset, unsigned defaultOffset, Type type)
-            : type(type)
-            , bytecodeOffset(bytecodeOffset)
-            , defaultOffset(defaultOffset)
-        {
-            this->jumpTable.simpleJumpTable = jumpTable;
-        }
-
-        SwitchRecord(StringJumpTable* jumpTable, unsigned bytecodeOffset, unsigned defaultOffset)
-            : type(String)
-            , bytecodeOffset(bytecodeOffset)
-            , defaultOffset(defaultOffset)
-        {
-            this->jumpTable.stringJumpTable = jumpTable;
-        }
-    };
-
-    struct PropertyStubCompilationInfo {
-        MacroAssembler::Call callReturnLocation;
-        MacroAssembler::Label hotPathBegin;
-    };
-
-    struct StructureStubCompilationInfo {
-        MacroAssembler::DataLabelPtr hotPathBegin;
-        MacroAssembler::Call hotPathOther;
-        MacroAssembler::Call callReturnLocation;
-    };
-
-    struct MethodCallCompilationInfo {
-        MethodCallCompilationInfo(unsigned propertyAccessIndex)
-            : propertyAccessIndex(propertyAccessIndex)
-        {
-        }
-
-        MacroAssembler::DataLabelPtr structureToCompare;
-        unsigned propertyAccessIndex;
-    };
-
-    // Near calls can only be patched to other JIT code, regular calls can be patched to JIT code or relinked to stub functions.
-    void ctiPatchNearCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, MacroAssemblerCodePtr newCalleeFunction);
-    void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, MacroAssemblerCodePtr newCalleeFunction);
-    void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, FunctionPtr newCalleeFunction);
-
-    class JIT : private JSInterfaceJIT {
-        friend class JITStubCall;
-
-        using MacroAssembler::Jump;
-        using MacroAssembler::JumpList;
-        using MacroAssembler::Label;
-
-        static const int patchGetByIdDefaultStructure = -1;
-        // Magic number - initial offset cannot be representable as a signed 8bit value, or the X86Assembler
-        // will compress the displacement, and we may not be able to fit a patched offset.
-        static const int patchGetByIdDefaultOffset = 256;
-
-    public:
-        static JITCode compile(JSGlobalData* globalData, CodeBlock* codeBlock, CodePtr* functionEntryArityCheck = 0, void* offsetBase = 0)
-        {
-            return JIT(globalData, codeBlock, offsetBase).privateCompile(functionEntryArityCheck);
-        }
-
-        static void compileGetByIdProto(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset, ReturnAddressPtr returnAddress)
-        {
-            JIT jit(globalData, codeBlock);
-            jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, ident, slot, cachedOffset, returnAddress, callFrame);
-        }
-
-        static void compileGetByIdSelfList(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset)
-        {
-            JIT jit(globalData, codeBlock);
-            jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, ident, slot, cachedOffset);
-        }
-        static void compileGetByIdProtoList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset)
-        {
-            JIT jit(globalData, codeBlock);
-            jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, ident, slot, cachedOffset, callFrame);
-        }
-        static void compileGetByIdChainList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset)
-        {
-            JIT jit(globalData, codeBlock);
-            jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, ident, slot, cachedOffset, callFrame);
-        }
-
-        static void compileGetByIdChain(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset, ReturnAddressPtr returnAddress)
-        {
-            JIT jit(globalData, codeBlock);
-            jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, ident, slot, cachedOffset, returnAddress, callFrame);
-        }
-        
-        static void compilePutByIdTransition(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* oldStructure, Structure* newStructure, size_t cachedOffset, StructureChain* chain, ReturnAddressPtr returnAddress, bool direct)
-        {
-            JIT jit(globalData, codeBlock);
-            jit.privateCompilePutByIdTransition(stubInfo, oldStructure, newStructure, cachedOffset, chain, returnAddress, direct);
-        }
-
-        static void compileCTIMachineTrampolines(JSGlobalData* globalData, RefPtr<ExecutablePool>* executablePool, TrampolineStructure *trampolines)
-        {
-            if (!globalData->canUseJIT())
-                return;
-            JIT jit(globalData, 0, 0);
-            jit.privateCompileCTIMachineTrampolines(executablePool, globalData, trampolines);
-        }
-
-        static CodePtr compileCTINativeCall(JSGlobalData* globalData, PassRefPtr<ExecutablePool> executablePool, NativeFunction func)
-        {
-            if (!globalData->canUseJIT())
-                return CodePtr();
-            JIT jit(globalData, 0, 0);
-            return jit.privateCompileCTINativeCall(executablePool, globalData, func);
-        }
-
-        static void patchGetByIdSelf(CodeBlock* codeblock, StructureStubInfo*, Structure*, size_t cachedOffset, ReturnAddressPtr returnAddress);
-        static void patchPutByIdReplace(CodeBlock* codeblock, StructureStubInfo*, Structure*, size_t cachedOffset, ReturnAddressPtr returnAddress, bool direct);
-        static void patchMethodCallProto(CodeBlock* codeblock, MethodCallLinkInfo&, JSFunction*, Structure*, JSObject*, ReturnAddressPtr);
-
-        static void compilePatchGetArrayLength(JSGlobalData* globalData, CodeBlock* codeBlock, ReturnAddressPtr returnAddress)
-        {
-            JIT jit(globalData, codeBlock);
-            return jit.privateCompilePatchGetArrayLength(returnAddress);
-        }
-
-        static void linkCall(JSFunction* callee, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, CodePtr, CallLinkInfo*, int callerArgCount, JSGlobalData*);
-        static void linkConstruct(JSFunction* callee, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, CodePtr, CallLinkInfo*, int callerArgCount, JSGlobalData*);
-        static void unlinkCallOrConstruct(CallLinkInfo*);
-
-    private:
-        struct JSRInfo {
-            DataLabelPtr storeLocation;
-            Label target;
-
-            JSRInfo(DataLabelPtr storeLocation, Label targetLocation)
-                : storeLocation(storeLocation)
-                , target(targetLocation)
-            {
-            }
-        };
-
-        JIT(JSGlobalData*, CodeBlock* = 0, void* = 0);
-
-        void privateCompileMainPass();
-        void privateCompileLinkPass();
-        void privateCompileSlowCases();
-        JITCode privateCompile(CodePtr* functionEntryArityCheck);
-        void privateCompileGetByIdProto(StructureStubInfo*, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame);
-        void privateCompileGetByIdSelfList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, const Identifier&, const PropertySlot&, size_t cachedOffset);
-        void privateCompileGetByIdProtoList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, size_t cachedOffset, CallFrame* callFrame);
-        void privateCompileGetByIdChainList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, StructureChain* chain, size_t count, const Identifier&, const PropertySlot&, size_t cachedOffset, CallFrame* callFrame);
-        void privateCompileGetByIdChain(StructureStubInfo*, Structure*, StructureChain*, size_t count, const Identifier&, const PropertySlot&, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame);
-        void privateCompilePutByIdTransition(StructureStubInfo*, Structure*, Structure*, size_t cachedOffset, StructureChain*, ReturnAddressPtr returnAddress, bool direct);
-
-        void privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executablePool, JSGlobalData* data, TrampolineStructure *trampolines);
-        Label privateCompileCTINativeCall(JSGlobalData*, bool isConstruct = false);
-        CodePtr privateCompileCTINativeCall(PassRefPtr<ExecutablePool> executablePool, JSGlobalData* data, NativeFunction func);
-        void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress);
-
-        void addSlowCase(Jump);
-        void addSlowCase(JumpList);
-        void addJump(Jump, int);
-        void emitJumpSlowToHot(Jump, int);
-
-        void compileOpCall(OpcodeID, Instruction* instruction, unsigned callLinkInfoIndex);
-        void compileOpCallVarargs(Instruction* instruction);
-        void compileOpCallInitializeCallFrame();
-        void compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID);
-        void compileOpCallVarargsSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter);
-
-        enum CompileOpStrictEqType { OpStrictEq, OpNStrictEq };
-        void compileOpStrictEq(Instruction* instruction, CompileOpStrictEqType type);
-        bool isOperandConstantImmediateDouble(unsigned src);
-        
-        void emitLoadDouble(unsigned index, FPRegisterID value);
-        void emitLoadInt32ToDouble(unsigned index, FPRegisterID value);
-
-        void testPrototype(JSValue, JumpList& failureCases);
-
-#if USE(JSVALUE32_64)
-        bool getOperandConstantImmediateInt(unsigned op1, unsigned op2, unsigned& op, int32_t& constant);
-
-        void emitLoadTag(unsigned index, RegisterID tag);
-        void emitLoadPayload(unsigned index, RegisterID payload);
-
-        void emitLoad(const JSValue& v, RegisterID tag, RegisterID payload);
-        void emitLoad(unsigned index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
-        void emitLoad2(unsigned index1, RegisterID tag1, RegisterID payload1, unsigned index2, RegisterID tag2, RegisterID payload2);
-
-        void emitStore(unsigned index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
-        void emitStore(unsigned index, const JSValue constant, RegisterID base = callFrameRegister);
-        void emitStoreInt32(unsigned index, RegisterID payload, bool indexIsInt32 = false);
-        void emitStoreInt32(unsigned index, Imm32 payload, bool indexIsInt32 = false);
-        void emitStoreCell(unsigned index, RegisterID payload, bool indexIsCell = false);
-        void emitStoreBool(unsigned index, RegisterID tag, bool indexIsBool = false);
-        void emitStoreDouble(unsigned index, FPRegisterID value);
-
-        bool isLabeled(unsigned bytecodeOffset);
-        void map(unsigned bytecodeOffset, unsigned virtualRegisterIndex, RegisterID tag, RegisterID payload);
-        void unmap(RegisterID);
-        void unmap();
-        bool isMapped(unsigned virtualRegisterIndex);
-        bool getMappedPayload(unsigned virtualRegisterIndex, RegisterID& payload);
-        bool getMappedTag(unsigned virtualRegisterIndex, RegisterID& tag);
-
-        void emitJumpSlowCaseIfNotJSCell(unsigned virtualRegisterIndex);
-        void emitJumpSlowCaseIfNotJSCell(unsigned virtualRegisterIndex, RegisterID tag);
-        void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, unsigned virtualRegisterIndex);
-
-#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
-        void compileGetByIdHotPath();
-        void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier* ident, Vector<SlowCaseEntry>::iterator& iter, bool isMethodCheck = false);
-#endif
-        void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, Structure* structure, size_t cachedOffset);
-        void compileGetDirectOffset(JSObject* base, RegisterID temp, RegisterID resultTag, RegisterID resultPayload, size_t cachedOffset);
-        void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, RegisterID structure, RegisterID offset);
-        void compilePutDirectOffset(RegisterID base, RegisterID valueTag, RegisterID valuePayload, Structure* structure, size_t cachedOffset);
-
-        // Arithmetic opcode helpers
-        void emitAdd32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType);
-        void emitSub32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType);
-        void emitBinaryDoubleOp(OpcodeID, unsigned dst, unsigned op1, unsigned op2, OperandTypes, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters = true, bool op2IsInRegisters = true);
-
-#if CPU(X86)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 7;
-        static const int patchOffsetPutByIdExternalLoad = 13;
-        static const int patchLengthPutByIdExternalLoad = 3;
-        static const int patchOffsetPutByIdPropertyMapOffset1 = 22;
-        static const int patchOffsetPutByIdPropertyMapOffset2 = 28;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 7;
-        static const int patchOffsetGetByIdBranchToSlowCase = 13;
-        static const int patchOffsetGetByIdExternalLoad = 13;
-        static const int patchLengthGetByIdExternalLoad = 3;
-        static const int patchOffsetGetByIdPropertyMapOffset1 = 22;
-        static const int patchOffsetGetByIdPropertyMapOffset2 = 28;
-        static const int patchOffsetGetByIdPutResult = 28;
-#if ENABLE(OPCODE_SAMPLING)
-        static const int patchOffsetGetByIdSlowCaseCall = 37;
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 27;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 6;
-
-        static const int patchOffsetMethodCheckProtoObj = 11;
-        static const int patchOffsetMethodCheckProtoStruct = 18;
-        static const int patchOffsetMethodCheckPutFunction = 29;
-#elif CPU(ARM_TRADITIONAL)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 4;
-        static const int patchOffsetPutByIdExternalLoad = 16;
-        static const int patchLengthPutByIdExternalLoad = 4;
-        static const int patchOffsetPutByIdPropertyMapOffset1 = 20;
-        static const int patchOffsetPutByIdPropertyMapOffset2 = 28;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 4;
-        static const int patchOffsetGetByIdBranchToSlowCase = 16;
-        static const int patchOffsetGetByIdExternalLoad = 16;
-        static const int patchLengthGetByIdExternalLoad = 4;
-        static const int patchOffsetGetByIdPropertyMapOffset1 = 20;
-        static const int patchOffsetGetByIdPropertyMapOffset2 = 28;
-        static const int patchOffsetGetByIdPutResult = 36;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 32;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 12;
-
-        static const int patchOffsetMethodCheckProtoObj = 12;
-        static const int patchOffsetMethodCheckProtoStruct = 20;
-        static const int patchOffsetMethodCheckPutFunction = 32;
-
-        // sequenceOpCall
-        static const int sequenceOpCallInstructionSpace = 12;
-        static const int sequenceOpCallConstantSpace = 2;
-        // sequenceMethodCheck
-        static const int sequenceMethodCheckInstructionSpace = 40;
-        static const int sequenceMethodCheckConstantSpace = 6;
-        // sequenceGetByIdHotPath
-        static const int sequenceGetByIdHotPathInstructionSpace = 36;
-        static const int sequenceGetByIdHotPathConstantSpace = 4;
-        // sequenceGetByIdSlowCase
-        static const int sequenceGetByIdSlowCaseInstructionSpace = 56;
-        static const int sequenceGetByIdSlowCaseConstantSpace = 2;
-        // sequencePutById
-        static const int sequencePutByIdInstructionSpace = 36;
-        static const int sequencePutByIdConstantSpace = 4;
-#elif CPU(ARM_THUMB2)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 10;
-        static const int patchOffsetPutByIdExternalLoad = 26;
-        static const int patchLengthPutByIdExternalLoad = 12;
-        static const int patchOffsetPutByIdPropertyMapOffset1 = 46;
-        static const int patchOffsetPutByIdPropertyMapOffset2 = 58;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 10;
-        static const int patchOffsetGetByIdBranchToSlowCase = 26;
-        static const int patchOffsetGetByIdExternalLoad = 26;
-        static const int patchLengthGetByIdExternalLoad = 12;
-        static const int patchOffsetGetByIdPropertyMapOffset1 = 46;
-        static const int patchOffsetGetByIdPropertyMapOffset2 = 58;
-        static const int patchOffsetGetByIdPutResult = 62;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 30;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 16;
-
-        static const int patchOffsetMethodCheckProtoObj = 24;
-        static const int patchOffsetMethodCheckProtoStruct = 34;
-        static const int patchOffsetMethodCheckPutFunction = 58;
-
-        // sequenceOpCall
-        static const int sequenceOpCallInstructionSpace = 12;
-        static const int sequenceOpCallConstantSpace = 2;
-        // sequenceMethodCheck
-        static const int sequenceMethodCheckInstructionSpace = 40;
-        static const int sequenceMethodCheckConstantSpace = 6;
-        // sequenceGetByIdHotPath
-        static const int sequenceGetByIdHotPathInstructionSpace = 36;
-        static const int sequenceGetByIdHotPathConstantSpace = 4;
-        // sequenceGetByIdSlowCase
-        static const int sequenceGetByIdSlowCaseInstructionSpace = 40;
-        static const int sequenceGetByIdSlowCaseConstantSpace = 2;
-        // sequencePutById
-        static const int sequencePutByIdInstructionSpace = 36;
-        static const int sequencePutByIdConstantSpace = 4;
-#elif CPU(MIPS)
-#if WTF_MIPS_ISA(1)
-        static const int patchOffsetPutByIdStructure = 16;
-        static const int patchOffsetPutByIdExternalLoad = 48;
-        static const int patchLengthPutByIdExternalLoad = 20;
-        static const int patchOffsetPutByIdPropertyMapOffset1 = 68;
-        static const int patchOffsetPutByIdPropertyMapOffset2 = 84;
-        static const int patchOffsetGetByIdStructure = 16;
-        static const int patchOffsetGetByIdBranchToSlowCase = 48;
-        static const int patchOffsetGetByIdExternalLoad = 48;
-        static const int patchLengthGetByIdExternalLoad = 20;
-        static const int patchOffsetGetByIdPropertyMapOffset1 = 68;
-        static const int patchOffsetGetByIdPropertyMapOffset2 = 88;
-        static const int patchOffsetGetByIdPutResult = 108;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 44;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 32;
-        static const int patchOffsetMethodCheckProtoObj = 32;
-        static const int patchOffsetMethodCheckProtoStruct = 56;
-        static const int patchOffsetMethodCheckPutFunction = 88;
-#else // WTF_MIPS_ISA(1)
-        static const int patchOffsetPutByIdStructure = 12;
-        static const int patchOffsetPutByIdExternalLoad = 44;
-        static const int patchLengthPutByIdExternalLoad = 16;
-        static const int patchOffsetPutByIdPropertyMapOffset1 = 60;
-        static const int patchOffsetPutByIdPropertyMapOffset2 = 76;
-        static const int patchOffsetGetByIdStructure = 12;
-        static const int patchOffsetGetByIdBranchToSlowCase = 44;
-        static const int patchOffsetGetByIdExternalLoad = 44;
-        static const int patchLengthGetByIdExternalLoad = 16;
-        static const int patchOffsetGetByIdPropertyMapOffset1 = 60;
-        static const int patchOffsetGetByIdPropertyMapOffset2 = 76;
-        static const int patchOffsetGetByIdPutResult = 92;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 44;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 32;
-        static const int patchOffsetMethodCheckProtoObj = 32;
-        static const int patchOffsetMethodCheckProtoStruct = 52;
-        static const int patchOffsetMethodCheckPutFunction = 84;
-#endif
-#else
-#error "JSVALUE32_64 not supported on this platform."
-#endif
-
-#else // USE(JSVALUE32_64)
-        void emitGetVirtualRegister(int src, RegisterID dst);
-        void emitGetVirtualRegisters(int src1, RegisterID dst1, int src2, RegisterID dst2);
-        void emitPutVirtualRegister(unsigned dst, RegisterID from = regT0);
-
-        int32_t getConstantOperandImmediateInt(unsigned src);
-
-        void emitGetVariableObjectRegister(RegisterID variableObject, int index, RegisterID dst);
-        void emitPutVariableObjectRegister(RegisterID src, RegisterID variableObject, int index);
-        
-        void killLastResultRegister();
-
-        Jump emitJumpIfJSCell(RegisterID);
-        Jump emitJumpIfBothJSCells(RegisterID, RegisterID, RegisterID);
-        void emitJumpSlowCaseIfJSCell(RegisterID);
-        Jump emitJumpIfNotJSCell(RegisterID);
-        void emitJumpSlowCaseIfNotJSCell(RegisterID);
-        void emitJumpSlowCaseIfNotJSCell(RegisterID, int VReg);
-#if USE(JSVALUE32_64)
-        JIT::Jump emitJumpIfImmediateNumber(RegisterID reg)
-        {
-            return emitJumpIfImmediateInteger(reg);
-        }
-        
-        JIT::Jump emitJumpIfNotImmediateNumber(RegisterID reg)
-        {
-            return emitJumpIfNotImmediateInteger(reg);
-        }
-#endif
-        JIT::Jump emitJumpIfImmediateInteger(RegisterID);
-        JIT::Jump emitJumpIfNotImmediateInteger(RegisterID);
-        JIT::Jump emitJumpIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID);
-        void emitJumpSlowCaseIfNotImmediateInteger(RegisterID);
-        void emitJumpSlowCaseIfNotImmediateNumber(RegisterID);
-        void emitJumpSlowCaseIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID);
-
-#if USE(JSVALUE32_64)
-        void emitFastArithDeTagImmediate(RegisterID);
-        Jump emitFastArithDeTagImmediateJumpIfZero(RegisterID);
-#endif
-        void emitFastArithReTagImmediate(RegisterID src, RegisterID dest);
-        void emitFastArithIntToImmNoCheck(RegisterID src, RegisterID dest);
-
-        void emitTagAsBoolImmediate(RegisterID reg);
-        void compileBinaryArithOp(OpcodeID, unsigned dst, unsigned src1, unsigned src2, OperandTypes opi);
-#if USE(JSVALUE64)
-        void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes, bool op1HasImmediateIntFastCase, bool op2HasImmediateIntFastCase);
-#else
-        void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes);
-#endif
-
-#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
-        void compileGetByIdHotPath(int resultVReg, int baseVReg, Identifier* ident, unsigned propertyAccessInstructionIndex);
-        void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier* ident, Vector<SlowCaseEntry>::iterator& iter, bool isMethodCheck = false);
-#endif
-        void compileGetDirectOffset(RegisterID base, RegisterID result, Structure* structure, size_t cachedOffset);
-        void compileGetDirectOffset(JSObject* base, RegisterID temp, RegisterID result, size_t cachedOffset);
-        void compileGetDirectOffset(RegisterID base, RegisterID result, RegisterID structure, RegisterID offset, RegisterID scratch);
-        void compilePutDirectOffset(RegisterID base, RegisterID value, Structure* structure, size_t cachedOffset);
-
-#if CPU(X86_64)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 10;
-        static const int patchOffsetPutByIdExternalLoad = 20;
-        static const int patchLengthPutByIdExternalLoad = 4;
-        static const int patchOffsetPutByIdPropertyMapOffset = 31;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 10;
-        static const int patchOffsetGetByIdBranchToSlowCase = 20;
-        static const int patchOffsetGetByIdExternalLoad = 20;
-        static const int patchLengthGetByIdExternalLoad = 4;
-        static const int patchOffsetGetByIdPropertyMapOffset = 31;
-        static const int patchOffsetGetByIdPutResult = 31;
-#if ENABLE(OPCODE_SAMPLING)
-        static const int patchOffsetGetByIdSlowCaseCall = 64;
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 41;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 9;
-
-        static const int patchOffsetMethodCheckProtoObj = 20;
-        static const int patchOffsetMethodCheckProtoStruct = 30;
-        static const int patchOffsetMethodCheckPutFunction = 50;
-#elif CPU(X86)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 7;
-        static const int patchOffsetPutByIdExternalLoad = 13;
-        static const int patchLengthPutByIdExternalLoad = 3;
-        static const int patchOffsetPutByIdPropertyMapOffset = 22;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 7;
-        static const int patchOffsetGetByIdBranchToSlowCase = 13;
-        static const int patchOffsetGetByIdExternalLoad = 13;
-        static const int patchLengthGetByIdExternalLoad = 3;
-        static const int patchOffsetGetByIdPropertyMapOffset = 22;
-        static const int patchOffsetGetByIdPutResult = 22;
-#if ENABLE(OPCODE_SAMPLING)
-        static const int patchOffsetGetByIdSlowCaseCall = 33;
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 23;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 6;
-
-        static const int patchOffsetMethodCheckProtoObj = 11;
-        static const int patchOffsetMethodCheckProtoStruct = 18;
-        static const int patchOffsetMethodCheckPutFunction = 29;
-#elif CPU(ARM_THUMB2)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 10;
-        static const int patchOffsetPutByIdExternalLoad = 26;
-        static const int patchLengthPutByIdExternalLoad = 12;
-        static const int patchOffsetPutByIdPropertyMapOffset = 46;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 10;
-        static const int patchOffsetGetByIdBranchToSlowCase = 26;
-        static const int patchOffsetGetByIdExternalLoad = 26;
-        static const int patchLengthGetByIdExternalLoad = 12;
-        static const int patchOffsetGetByIdPropertyMapOffset = 46;
-        static const int patchOffsetGetByIdPutResult = 50;
-#if ENABLE(OPCODE_SAMPLING)
-        static const int patchOffsetGetByIdSlowCaseCall = 0; // FIMXE
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 28;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 16;
-
-        static const int patchOffsetMethodCheckProtoObj = 24;
-        static const int patchOffsetMethodCheckProtoStruct = 34;
-        static const int patchOffsetMethodCheckPutFunction = 58;
-#elif CPU(ARM_TRADITIONAL)
-        // These architecture specific value are used to enable patching - see comment on op_put_by_id.
-        static const int patchOffsetPutByIdStructure = 4;
-        static const int patchOffsetPutByIdExternalLoad = 16;
-        static const int patchLengthPutByIdExternalLoad = 4;
-        static const int patchOffsetPutByIdPropertyMapOffset = 20;
-        // These architecture specific value are used to enable patching - see comment on op_get_by_id.
-        static const int patchOffsetGetByIdStructure = 4;
-        static const int patchOffsetGetByIdBranchToSlowCase = 16;
-        static const int patchOffsetGetByIdExternalLoad = 16;
-        static const int patchLengthGetByIdExternalLoad = 4;
-        static const int patchOffsetGetByIdPropertyMapOffset = 20;
-        static const int patchOffsetGetByIdPutResult = 28;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 28;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 12;
-
-        static const int patchOffsetMethodCheckProtoObj = 12;
-        static const int patchOffsetMethodCheckProtoStruct = 20;
-        static const int patchOffsetMethodCheckPutFunction = 32;
-
-        // sequenceOpCall
-        static const int sequenceOpCallInstructionSpace = 12;
-        static const int sequenceOpCallConstantSpace = 2;
-        // sequenceMethodCheck
-        static const int sequenceMethodCheckInstructionSpace = 40;
-        static const int sequenceMethodCheckConstantSpace = 6;
-        // sequenceGetByIdHotPath
-        static const int sequenceGetByIdHotPathInstructionSpace = 28;
-        static const int sequenceGetByIdHotPathConstantSpace = 3;
-        // sequenceGetByIdSlowCase
-        static const int sequenceGetByIdSlowCaseInstructionSpace = 32;
-        static const int sequenceGetByIdSlowCaseConstantSpace = 2;
-        // sequencePutById
-        static const int sequencePutByIdInstructionSpace = 28;
-        static const int sequencePutByIdConstantSpace = 3;
-#elif CPU(MIPS)
-#if WTF_MIPS_ISA(1)
-        static const int patchOffsetPutByIdStructure = 16;
-        static const int patchOffsetPutByIdExternalLoad = 48;
-        static const int patchLengthPutByIdExternalLoad = 20;
-        static const int patchOffsetPutByIdPropertyMapOffset = 68;
-        static const int patchOffsetGetByIdStructure = 16;
-        static const int patchOffsetGetByIdBranchToSlowCase = 48;
-        static const int patchOffsetGetByIdExternalLoad = 48;
-        static const int patchLengthGetByIdExternalLoad = 20;
-        static const int patchOffsetGetByIdPropertyMapOffset = 68;
-        static const int patchOffsetGetByIdPutResult = 88;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 40;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 32;
-        static const int patchOffsetMethodCheckProtoObj = 32;
-        static const int patchOffsetMethodCheckProtoStruct = 56;
-        static const int patchOffsetMethodCheckPutFunction = 88;
-#else // WTF_MIPS_ISA(1)
-        static const int patchOffsetPutByIdStructure = 12;
-        static const int patchOffsetPutByIdExternalLoad = 44;
-        static const int patchLengthPutByIdExternalLoad = 16;
-        static const int patchOffsetPutByIdPropertyMapOffset = 60;
-        static const int patchOffsetGetByIdStructure = 12;
-        static const int patchOffsetGetByIdBranchToSlowCase = 44;
-        static const int patchOffsetGetByIdExternalLoad = 44;
-        static const int patchLengthGetByIdExternalLoad = 16;
-        static const int patchOffsetGetByIdPropertyMapOffset = 60;
-        static const int patchOffsetGetByIdPutResult = 76;
-#if ENABLE(OPCODE_SAMPLING)
-        #error "OPCODE_SAMPLING is not yet supported"
-#else
-        static const int patchOffsetGetByIdSlowCaseCall = 40;
-#endif
-        static const int patchOffsetOpCallCompareToJump = 32;
-        static const int patchOffsetMethodCheckProtoObj = 32;
-        static const int patchOffsetMethodCheckProtoStruct = 52;
-        static const int patchOffsetMethodCheckPutFunction = 84;
-#endif
-#endif
-#endif // USE(JSVALUE32_64)
-
-#if (defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL)
-#define BEGIN_UNINTERRUPTED_SEQUENCE(name) do { beginUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace); } while (false)
-#define END_UNINTERRUPTED_SEQUENCE(name) do { endUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace); } while (false)
-
-        void beginUninterruptedSequence(int, int);
-        void endUninterruptedSequence(int, int);
-
-#else
-#define BEGIN_UNINTERRUPTED_SEQUENCE(name)  do { beginUninterruptedSequence(); } while (false)
-#define END_UNINTERRUPTED_SEQUENCE(name)  do { endUninterruptedSequence(); } while (false)
-#endif
-
-        void emit_op_add(Instruction*);
-        void emit_op_bitand(Instruction*);
-        void emit_op_bitnot(Instruction*);
-        void emit_op_bitor(Instruction*);
-        void emit_op_bitxor(Instruction*);
-        void emit_op_call(Instruction*);
-        void emit_op_call_eval(Instruction*);
-        void emit_op_call_varargs(Instruction*);
-        void emit_op_call_put_result(Instruction*);
-        void emit_op_catch(Instruction*);
-        void emit_op_construct(Instruction*);
-        void emit_op_get_callee(Instruction*);
-        void emit_op_create_this(Instruction*);
-        void emit_op_convert_this(Instruction*);
-        void emit_op_convert_this_strict(Instruction*);
-        void emit_op_create_arguments(Instruction*);
-        void emit_op_debug(Instruction*);
-        void emit_op_del_by_id(Instruction*);
-        void emit_op_div(Instruction*);
-        void emit_op_end(Instruction*);
-        void emit_op_enter(Instruction*);
-        void emit_op_create_activation(Instruction*);
-        void emit_op_eq(Instruction*);
-        void emit_op_eq_null(Instruction*);
-        void emit_op_get_by_id(Instruction*);
-        void emit_op_get_arguments_length(Instruction*);
-        void emit_op_get_by_val(Instruction*);
-        void emit_op_get_argument_by_val(Instruction*);
-        void emit_op_get_by_pname(Instruction*);
-        void emit_op_get_global_var(Instruction*);
-        void emit_op_get_scoped_var(Instruction*);
-        void emit_op_init_lazy_reg(Instruction*);
-        void emit_op_check_has_instance(Instruction*);
-        void emit_op_instanceof(Instruction*);
-        void emit_op_jeq_null(Instruction*);
-        void emit_op_jfalse(Instruction*);
-        void emit_op_jmp(Instruction*);
-        void emit_op_jmp_scopes(Instruction*);
-        void emit_op_jneq_null(Instruction*);
-        void emit_op_jneq_ptr(Instruction*);
-        void emit_op_jnless(Instruction*);
-        void emit_op_jless(Instruction*);
-        void emit_op_jlesseq(Instruction*, bool invert = false);
-        void emit_op_jnlesseq(Instruction*);
-        void emit_op_jsr(Instruction*);
-        void emit_op_jtrue(Instruction*);
-        void emit_op_load_varargs(Instruction*);
-        void emit_op_loop(Instruction*);
-        void emit_op_loop_if_less(Instruction*);
-        void emit_op_loop_if_lesseq(Instruction*);
-        void emit_op_loop_if_true(Instruction*);
-        void emit_op_loop_if_false(Instruction*);
-        void emit_op_lshift(Instruction*);
-        void emit_op_method_check(Instruction*);
-        void emit_op_mod(Instruction*);
-        void emit_op_mov(Instruction*);
-        void emit_op_mul(Instruction*);
-        void emit_op_negate(Instruction*);
-        void emit_op_neq(Instruction*);
-        void emit_op_neq_null(Instruction*);
-        void emit_op_new_array(Instruction*);
-        void emit_op_new_func(Instruction*);
-        void emit_op_new_func_exp(Instruction*);
-        void emit_op_new_object(Instruction*);
-        void emit_op_new_regexp(Instruction*);
-        void emit_op_get_pnames(Instruction*);
-        void emit_op_next_pname(Instruction*);
-        void emit_op_not(Instruction*);
-        void emit_op_nstricteq(Instruction*);
-        void emit_op_pop_scope(Instruction*);
-        void emit_op_post_dec(Instruction*);
-        void emit_op_post_inc(Instruction*);
-        void emit_op_pre_dec(Instruction*);
-        void emit_op_pre_inc(Instruction*);
-        void emit_op_profile_did_call(Instruction*);
-        void emit_op_profile_will_call(Instruction*);
-        void emit_op_push_new_scope(Instruction*);
-        void emit_op_push_scope(Instruction*);
-        void emit_op_put_by_id(Instruction*);
-        void emit_op_put_by_index(Instruction*);
-        void emit_op_put_by_val(Instruction*);
-        void emit_op_put_getter(Instruction*);
-        void emit_op_put_global_var(Instruction*);
-        void emit_op_put_scoped_var(Instruction*);
-        void emit_op_put_setter(Instruction*);
-        void emit_op_resolve(Instruction*);
-        void emit_op_resolve_base(Instruction*);
-        void emit_op_ensure_property_exists(Instruction*);
-        void emit_op_resolve_global(Instruction*, bool dynamic = false);
-        void emit_op_resolve_global_dynamic(Instruction*);
-        void emit_op_resolve_skip(Instruction*);
-        void emit_op_resolve_with_base(Instruction*);
-        void emit_op_ret(Instruction*);
-        void emit_op_ret_object_or_this(Instruction*);
-        void emit_op_rshift(Instruction*);
-        void emit_op_sret(Instruction*);
-        void emit_op_strcat(Instruction*);
-        void emit_op_stricteq(Instruction*);
-        void emit_op_sub(Instruction*);
-        void emit_op_switch_char(Instruction*);
-        void emit_op_switch_imm(Instruction*);
-        void emit_op_switch_string(Instruction*);
-        void emit_op_tear_off_activation(Instruction*);
-        void emit_op_tear_off_arguments(Instruction*);
-        void emit_op_throw(Instruction*);
-        void emit_op_throw_reference_error(Instruction*);
-        void emit_op_throw_syntax_error(Instruction*);
-        void emit_op_to_jsnumber(Instruction*);
-        void emit_op_to_primitive(Instruction*);
-        void emit_op_unexpected_load(Instruction*);
-        void emit_op_urshift(Instruction*);
-#if ENABLE(JIT_USE_SOFT_MODULO)
-        void softModulo();
-#endif
-
-        void emitSlow_op_add(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_bitand(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_bitnot(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_bitor(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_bitxor(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_call(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_call_eval(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_call_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_construct(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_convert_this(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_convert_this_strict(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_div(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_eq(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_get_by_id(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_get_arguments_length(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_get_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_get_argument_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_get_by_pname(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_check_has_instance(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_instanceof(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_jfalse(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_jnless(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_jless(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_jlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&, bool invert = false);
-        void emitSlow_op_jnlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_jtrue(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_load_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_loop_if_less(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_loop_if_lesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_loop_if_true(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_loop_if_false(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_lshift(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_method_check(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_mod(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_mul(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_negate(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_neq(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_not(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_nstricteq(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_post_dec(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_post_inc(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_pre_dec(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_pre_inc(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_put_by_id(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_put_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_resolve_global(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_resolve_global_dynamic(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_rshift(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_stricteq(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_sub(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_to_jsnumber(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_to_primitive(Instruction*, Vector<SlowCaseEntry>::iterator&);
-        void emitSlow_op_urshift(Instruction*, Vector<SlowCaseEntry>::iterator&);
-
-        
-        void emitRightShift(Instruction*, bool isUnsigned);
-        void emitRightShiftSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned);
-
-        /* This function is deprecated. */
-        void emitGetJITStubArg(unsigned argumentNumber, RegisterID dst);
-
-        void emitInitRegister(unsigned dst);
-
-        void emitPutToCallFrameHeader(RegisterID from, RegisterFile::CallFrameHeaderEntry entry);
-        void emitPutImmediateToCallFrameHeader(void* value, RegisterFile::CallFrameHeaderEntry entry);
-        void emitGetFromCallFrameHeaderPtr(RegisterFile::CallFrameHeaderEntry entry, RegisterID to, RegisterID from = callFrameRegister);
-        void emitGetFromCallFrameHeader32(RegisterFile::CallFrameHeaderEntry entry, RegisterID to, RegisterID from = callFrameRegister);
-
-        JSValue getConstantOperand(unsigned src);
-        bool isOperandConstantImmediateInt(unsigned src);
-        bool isOperandConstantImmediateChar(unsigned src);
-
-        Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter)
-        {
-            return iter++->from;
-        }
-        void linkSlowCase(Vector<SlowCaseEntry>::iterator& iter)
-        {
-            iter->from.link(this);
-            ++iter;
-        }
-        void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int vReg);
-
-        Jump checkStructure(RegisterID reg, Structure* structure);
-
-        void restoreArgumentReference();
-        void restoreArgumentReferenceForTrampoline();
-
-        Call emitNakedCall(CodePtr function = CodePtr());
-
-        void preserveReturnAddressAfterCall(RegisterID);
-        void restoreReturnAddressBeforeReturn(RegisterID);
-        void restoreReturnAddressBeforeReturn(Address);
-
-        // Loads the character value of a single character string into dst.
-        void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures);
-        
-        void emitTimeoutCheck();
-#ifndef NDEBUG
-        void printBytecodeOperandTypes(unsigned src1, unsigned src2);
-#endif
-
-#if ENABLE(SAMPLING_FLAGS)
-        void setSamplingFlag(int32_t);
-        void clearSamplingFlag(int32_t);
-#endif
-
-#if ENABLE(SAMPLING_COUNTERS)
-        void emitCount(AbstractSamplingCounter&, uint32_t = 1);
-#endif
-
-#if ENABLE(OPCODE_SAMPLING)
-        void sampleInstruction(Instruction*, bool = false);
-#endif
-
-#if ENABLE(CODEBLOCK_SAMPLING)
-        void sampleCodeBlock(CodeBlock*);
-#else
-        void sampleCodeBlock(CodeBlock*) {}
-#endif
-
-        Interpreter* m_interpreter;
-        JSGlobalData* m_globalData;
-        CodeBlock* m_codeBlock;
-
-        Vector<CallRecord> m_calls;
-        Vector<Label> m_labels;
-        Vector<PropertyStubCompilationInfo> m_propertyAccessCompilationInfo;
-        Vector<StructureStubCompilationInfo> m_callStructureStubCompilationInfo;
-        Vector<MethodCallCompilationInfo> m_methodCallCompilationInfo;
-        Vector<JumpTable> m_jmpTable;
-
-        unsigned m_bytecodeOffset;
-        Vector<JSRInfo> m_jsrSites;
-        Vector<SlowCaseEntry> m_slowCases;
-        Vector<SwitchRecord> m_switches;
-
-        unsigned m_propertyAccessInstructionIndex;
-        unsigned m_globalResolveInfoIndex;
-        unsigned m_callLinkInfoIndex;
-
-#if USE(JSVALUE32_64)
-        unsigned m_jumpTargetIndex;
-        unsigned m_mappedBytecodeOffset;
-        unsigned m_mappedVirtualRegisterIndex;
-        RegisterID m_mappedTag;
-        RegisterID m_mappedPayload;
-#else
-        int m_lastResultBytecodeRegister;
-        unsigned m_jumpTargetsPosition;
-#endif
-
-#ifndef NDEBUG
-#if defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL
-        Label m_uninterruptedInstructionSequenceBegin;
-        int m_uninterruptedConstantSequenceBegin;
-#endif
-#endif
-        void* m_linkerOffset;
-        static CodePtr stringGetByValStubGenerator(JSGlobalData* globalData, ExecutablePool* pool);
-    } JIT_CLASS_ALIGNMENT;
-
-    inline void JIT::emit_op_loop(Instruction* currentInstruction)
-    {
-        emitTimeoutCheck();
-        emit_op_jmp(currentInstruction);
-    }
-
-    inline void JIT::emit_op_loop_if_true(Instruction* currentInstruction)
-    {
-        emitTimeoutCheck();
-        emit_op_jtrue(currentInstruction);
-    }
-
-    inline void JIT::emitSlow_op_loop_if_true(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-    {
-        emitSlow_op_jtrue(currentInstruction, iter);
-    }
-
-    inline void JIT::emit_op_loop_if_false(Instruction* currentInstruction)
-    {
-        emitTimeoutCheck();
-        emit_op_jfalse(currentInstruction);
-    }
-
-    inline void JIT::emitSlow_op_loop_if_false(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-    {
-        emitSlow_op_jfalse(currentInstruction, iter);
-    }
-
-    inline void JIT::emit_op_loop_if_less(Instruction* currentInstruction)
-    {
-        emitTimeoutCheck();
-        emit_op_jless(currentInstruction);
-    }
-
-    inline void JIT::emitSlow_op_loop_if_less(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-    {
-        emitSlow_op_jless(currentInstruction, iter);
-    }
-
-} // namespace JSC
-
-#endif // ENABLE(JIT)
-
-#endif // JIT_h