MacroAssembler::Call from;

unsigned bytecodeOffset;

void* to;

CallRecord()

{

}

CallRecord(MacroAssembler::Call from, unsigned bytecodeOffset, void* to = 0)

: from(from)

, bytecodeOffset(bytecodeOffset)

, to(to)

{

}

MacroAssembler::Jump from;

unsigned toBytecodeOffset;

JumpTable(MacroAssembler::Jump f, unsigned t)

: from(f)

, toBytecodeOffset(t)

{

}

MacroAssembler::Jump from;

unsigned to;

unsigned hint;

SlowCaseEntry(MacroAssembler::Jump f, unsigned t, unsigned h = 0)

: from(f)

, to(t)

, hint(h)

{

}

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;

}

ByValCompilationInfo() { }

ByValCompilationInfo(ByValInfo* byValInfo, unsigned bytecodeIndex, MacroAssembler::PatchableJump notIndexJump, MacroAssembler::PatchableJump badTypeJump, JITArrayMode arrayMode, ArrayProfile* arrayProfile, MacroAssembler::Label doneTarget, MacroAssembler::Label nextHotPathTarget)

: byValInfo(byValInfo)

, bytecodeIndex(bytecodeIndex)

, notIndexJump(notIndexJump)

, badTypeJump(badTypeJump)

, arrayMode(arrayMode)

, arrayProfile(arrayProfile)

, doneTarget(doneTarget)

, nextHotPathTarget(nextHotPathTarget)

{

}

ByValInfo* byValInfo;

unsigned bytecodeIndex;

MacroAssembler::PatchableJump notIndexJump;

MacroAssembler::PatchableJump badTypeJump;

JITArrayMode arrayMode;

ArrayProfile* arrayProfile;

MacroAssembler::Label doneTarget;

MacroAssembler::Label nextHotPathTarget;

MacroAssembler::Label slowPathTarget;

MacroAssembler::Call returnAddress;

MacroAssembler::DataLabelPtr hotPathBegin;

MacroAssembler::Call hotPathOther;

MacroAssembler::Call callReturnLocation;

CallLinkInfo* callLinkInfo;

friend class JITSlowPathCall;

friend class JITStubCall;

using MacroAssembler::Jump;

using MacroAssembler::JumpList;

using MacroAssembler::Label;

static const uintptr_t patchGetByIdDefaultStructure = unusedPointer;

static const int patchGetByIdDefaultOffset = 0;

// 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 patchPutByIdDefaultOffset = 256;

public:

static CompilationResult compile(VM* vm, CodeBlock* codeBlock, JITCompilationEffort effort)

{

return JIT(vm, codeBlock).privateCompile(effort);

}

static void compileGetByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)

{

JIT jit(vm, codeBlock);

jit.m_bytecodeOffset = byValInfo->bytecodeIndex;

jit.privateCompileGetByVal(byValInfo, returnAddress, arrayMode);

}

static void compileGetByValWithCachedId(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, const Identifier& propertyName)

{

JIT jit(vm, codeBlock);

jit.m_bytecodeOffset = byValInfo->bytecodeIndex;

jit.privateCompileGetByValWithCachedId(byValInfo, returnAddress, propertyName);

}

static void compilePutByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)

{

JIT jit(vm, codeBlock);

jit.m_bytecodeOffset = byValInfo->bytecodeIndex;

jit.privateCompilePutByVal(byValInfo, returnAddress, arrayMode);

}

static void compileDirectPutByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)

{

JIT jit(vm, codeBlock);

jit.m_bytecodeOffset = byValInfo->bytecodeIndex;

jit.privateCompilePutByVal(byValInfo, returnAddress, arrayMode);

}

static void compilePutByValWithCachedId(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, PutKind putKind, const Identifier& propertyName)

{

JIT jit(vm, codeBlock);

jit.m_bytecodeOffset = byValInfo->bytecodeIndex;

jit.privateCompilePutByValWithCachedId(byValInfo, returnAddress, putKind, propertyName);

}

static void compileHasIndexedProperty(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)

{

JIT jit(vm, codeBlock);

jit.m_bytecodeOffset = byValInfo->bytecodeIndex;

jit.privateCompileHasIndexedProperty(byValInfo, returnAddress, arrayMode);

}

static CodeRef compileCTINativeCall(VM* vm, NativeFunction func)

{

if (!vm->canUseJIT()) {

return CodeRef::createLLIntCodeRef(llint_native_call_trampoline);

}

JIT jit(vm, 0);

return jit.privateCompileCTINativeCall(vm, func);

}

static unsigned frameRegisterCountFor(CodeBlock*);

static int stackPointerOffsetFor(CodeBlock*);

private:

JIT(VM*, CodeBlock* = 0);

void privateCompileMainPass();

void privateCompileLinkPass();

void privateCompileSlowCases();

CompilationResult privateCompile(JITCompilationEffort);

void privateCompileGetByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode);

void privateCompileGetByValWithCachedId(ByValInfo*, ReturnAddressPtr, const Identifier&);

void privateCompilePutByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode);

void privateCompilePutByValWithCachedId(ByValInfo*, ReturnAddressPtr, PutKind, const Identifier&);

void privateCompileHasIndexedProperty(ByValInfo*, ReturnAddressPtr, JITArrayMode);

Label privateCompileCTINativeCall(VM*, bool isConstruct = false);

CodeRef privateCompileCTINativeCall(VM*, NativeFunction);

void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress);

// Add a call out from JIT code, without an exception check.

Call appendCall(const FunctionPtr& function)

{

Call functionCall = call();

m_calls.append(CallRecord(functionCall, m_bytecodeOffset, function.value()));

return functionCall;

}

#if OS(WINDOWS) && CPU(X86_64)

Call appendCallWithSlowPathReturnType(const FunctionPtr& function)

{

Call functionCall = callWithSlowPathReturnType();

m_calls.append(CallRecord(functionCall, m_bytecodeOffset, function.value()));

return functionCall;

}

#endif

void exceptionCheck(Jump jumpToHandler)

{

m_exceptionChecks.append(jumpToHandler);

}

void exceptionCheck()

{

m_exceptionChecks.append(emitExceptionCheck());

}

void exceptionCheckWithCallFrameRollback()

{

m_exceptionChecksWithCallFrameRollback.append(emitExceptionCheck());

}

void privateCompileExceptionHandlers();

void addSlowCase(Jump);

void addSlowCase(JumpList);

void addSlowCase();

void addJump(Jump, int);

void emitJumpSlowToHot(Jump, int);

void compileOpCall(OpcodeID, Instruction*, unsigned callLinkInfoIndex);

void compileOpCallSlowCase(OpcodeID, Instruction*, Vector<SlowCaseEntry>::iterator&, unsigned callLinkInfoIndex);

void compileSetupVarargsFrame(Instruction*, CallLinkInfo*);

void compileCallEval(Instruction*);

void compileCallEvalSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitPutCallResult(Instruction*);

enum CompileOpStrictEqType { OpStrictEq, OpNStrictEq };

void compileOpStrictEq(Instruction* instruction, CompileOpStrictEqType type);

bool isOperandConstantImmediateDouble(int src);

void emitLoadDouble(int index, FPRegisterID value);

void emitLoadInt32ToDouble(int index, FPRegisterID value);

Jump emitJumpIfCellObject(RegisterID cellReg);

Jump emitJumpIfCellNotObject(RegisterID cellReg);

enum WriteBarrierMode { UnconditionalWriteBarrier, ShouldFilterBase, ShouldFilterValue, ShouldFilterBaseAndValue };

// value register in write barrier is used before any scratch registers

// so may safely be the same as either of the scratch registers.

void emitWriteBarrier(unsigned owner, unsigned value, WriteBarrierMode);

void emitWriteBarrier(JSCell* owner, unsigned value, WriteBarrierMode);

void emitWriteBarrier(JSCell* owner);

template<typename StructureType> // StructureType can be RegisterID or ImmPtr.

void emitAllocateJSObject(RegisterID allocator, StructureType, RegisterID result, RegisterID scratch);

// This assumes that the value to profile is in regT0 and that regT3 is available for

// scratch.

void emitValueProfilingSite(ValueProfile*);

void emitValueProfilingSite(unsigned bytecodeOffset);

void emitValueProfilingSite();

void emitArrayProfilingSiteWithCell(RegisterID cell, RegisterID indexingType, ArrayProfile*);

void emitArrayProfilingSiteForBytecodeIndexWithCell(RegisterID cell, RegisterID indexingType, unsigned bytecodeIndex);

void emitArrayProfileStoreToHoleSpecialCase(ArrayProfile*);

void emitArrayProfileOutOfBoundsSpecialCase(ArrayProfile*);

JITArrayMode chooseArrayMode(ArrayProfile*);

// Property is in regT1, base is in regT0. regT2 contains indexing type.

// Property is int-checked and zero extended. Base is cell checked.

// Structure is already profiled. Returns the slow cases. Fall-through

// case contains result in regT0, and it is not yet profiled.

JumpList emitInt32Load(Instruction* instruction, PatchableJump& badType) { return emitContiguousLoad(instruction, badType, Int32Shape); }

JumpList emitDoubleLoad(Instruction*, PatchableJump& badType);

JumpList emitContiguousLoad(Instruction*, PatchableJump& badType, IndexingType expectedShape = ContiguousShape);

JumpList emitArrayStorageLoad(Instruction*, PatchableJump& badType);

JumpList emitLoadForArrayMode(Instruction*, JITArrayMode, PatchableJump& badType);

JumpList emitInt32GetByVal(Instruction* instruction, PatchableJump& badType) { return emitContiguousGetByVal(instruction, badType, Int32Shape); }

JumpList emitDoubleGetByVal(Instruction*, PatchableJump& badType);

JumpList emitContiguousGetByVal(Instruction*, PatchableJump& badType, IndexingType expectedShape = ContiguousShape);

JumpList emitArrayStorageGetByVal(Instruction*, PatchableJump& badType);

JumpList emitDirectArgumentsGetByVal(Instruction*, PatchableJump& badType);

JumpList emitScopedArgumentsGetByVal(Instruction*, PatchableJump& badType);

JumpList emitIntTypedArrayGetByVal(Instruction*, PatchableJump& badType, TypedArrayType);

JumpList emitFloatTypedArrayGetByVal(Instruction*, PatchableJump& badType, TypedArrayType);

// Property is in regT1, base is in regT0. regT2 contains indecing type.

// The value to store is not yet loaded. Property is int-checked and

// zero-extended. Base is cell checked. Structure is already profiled.

// returns the slow cases.

JumpList emitInt32PutByVal(Instruction* currentInstruction, PatchableJump& badType)

{

return emitGenericContiguousPutByVal(currentInstruction, badType, Int32Shape);

}

JumpList emitDoublePutByVal(Instruction* currentInstruction, PatchableJump& badType)

{

return emitGenericContiguousPutByVal(currentInstruction, badType, DoubleShape);

}

JumpList emitContiguousPutByVal(Instruction* currentInstruction, PatchableJump& badType)

{

return emitGenericContiguousPutByVal(currentInstruction, badType);

}

JumpList emitGenericContiguousPutByVal(Instruction*, PatchableJump& badType, IndexingType indexingShape = ContiguousShape);

JumpList emitArrayStoragePutByVal(Instruction*, PatchableJump& badType);

JumpList emitIntTypedArrayPutByVal(Instruction*, PatchableJump& badType, TypedArrayType);

JumpList emitFloatTypedArrayPutByVal(Instruction*, PatchableJump& badType, TypedArrayType);

// Identifier check helper for GetByVal and PutByVal.

void emitIdentifierCheck(RegisterID cell, RegisterID scratch, const Identifier&, JumpList& slowCases);

JITGetByIdGenerator emitGetByValWithCachedId(Instruction*, const Identifier&, Jump& fastDoneCase, Jump& slowDoneCase, JumpList& slowCases);

JITPutByIdGenerator emitPutByValWithCachedId(Instruction*, PutKind, const Identifier&, JumpList& doneCases, JumpList& slowCases);

enum FinalObjectMode { MayBeFinal, KnownNotFinal };

#if USE(JSVALUE32_64)

bool getOperandConstantImmediateInt(int op1, int op2, int& op, int32_t& constant);

void emitLoadTag(int index, RegisterID tag);

void emitLoadPayload(int index, RegisterID payload);

void emitLoad(const JSValue& v, RegisterID tag, RegisterID payload);

void emitLoad(int index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);

void emitLoad2(int index1, RegisterID tag1, RegisterID payload1, int index2, RegisterID tag2, RegisterID payload2);

void emitStore(int index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);

void emitStore(int index, const JSValue constant, RegisterID base = callFrameRegister);

void emitStoreInt32(int index, RegisterID payload, bool indexIsInt32 = false);

void emitStoreInt32(int index, TrustedImm32 payload, bool indexIsInt32 = false);

void emitStoreCell(int index, RegisterID payload, bool indexIsCell = false);

void emitStoreBool(int index, RegisterID payload, bool indexIsBool = false);

void emitStoreDouble(int index, FPRegisterID value);

void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex);

void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex, RegisterID tag);

void compileGetByIdHotPath(const Identifier*);

void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, PropertyOffset cachedOffset);

void compileGetDirectOffset(JSObject* base, RegisterID resultTag, RegisterID resultPayload, PropertyOffset cachedOffset);

void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, RegisterID offset, FinalObjectMode = MayBeFinal);

void compilePutDirectOffset(RegisterID base, RegisterID valueTag, RegisterID valuePayload, PropertyOffset cachedOffset);

// Arithmetic opcode helpers

void emitAdd32Constant(int dst, int op, int32_t constant, ResultType opType);

void emitSub32Constant(int dst, int op, int32_t constant, ResultType opType);

void emitBinaryDoubleOp(OpcodeID, int dst, int op1, int op2, OperandTypes, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters = true, bool op2IsInRegisters = true);

#else // USE(JSVALUE32_64)

void emitGetVirtualRegister(int src, RegisterID dst);

void emitGetVirtualRegister(VirtualRegister src, RegisterID dst);

void emitGetVirtualRegisters(int src1, RegisterID dst1, int src2, RegisterID dst2);

void emitGetVirtualRegisters(VirtualRegister src1, RegisterID dst1, VirtualRegister src2, RegisterID dst2);

void emitPutVirtualRegister(int dst, RegisterID from = regT0);

void emitPutVirtualRegister(VirtualRegister dst, RegisterID from = regT0);

void emitStoreCell(int dst, RegisterID payload, bool /* only used in JSValue32_64 */ = false)

{

emitPutVirtualRegister(dst, payload);

}

void emitStoreCell(VirtualRegister dst, RegisterID payload)

{

emitPutVirtualRegister(dst, payload);

}

int32_t getConstantOperandImmediateInt(int src);

Jump emitJumpIfJSCell(RegisterID);

Jump emitJumpIfBothJSCells(RegisterID, RegisterID, RegisterID);

void emitJumpSlowCaseIfJSCell(RegisterID);

void emitJumpSlowCaseIfNotJSCell(RegisterID);

void emitJumpSlowCaseIfNotJSCell(RegisterID, int VReg);

Jump emitJumpIfImmediateInteger(RegisterID);

Jump emitJumpIfNotImmediateInteger(RegisterID);

Jump emitJumpIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID);

PatchableJump emitPatchableJumpIfNotImmediateInteger(RegisterID);

void emitJumpSlowCaseIfNotImmediateInteger(RegisterID);

void emitJumpSlowCaseIfNotImmediateNumber(RegisterID);

void emitJumpSlowCaseIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID);

void emitFastArithReTagImmediate(RegisterID src, RegisterID dest);

void emitTagAsBoolImmediate(RegisterID reg);

void compileBinaryArithOp(OpcodeID, int dst, int src1, int src2, OperandTypes opi);

void compileBinaryArithOpSlowCase(Instruction*, OpcodeID, Vector<SlowCaseEntry>::iterator&, int dst, int src1, int src2, OperandTypes, bool op1HasImmediateIntFastCase, bool op2HasImmediateIntFastCase);

void compileGetByIdHotPath(int baseVReg, const Identifier*);

void compileGetDirectOffset(RegisterID base, RegisterID result, PropertyOffset cachedOffset);

void compileGetDirectOffset(JSObject* base, RegisterID result, PropertyOffset cachedOffset);

void compileGetDirectOffset(RegisterID base, RegisterID result, RegisterID offset, RegisterID scratch, FinalObjectMode = MayBeFinal);

void compilePutDirectOffset(RegisterID base, RegisterID value, PropertyOffset cachedOffset);

#endif // USE(JSVALUE32_64)

void emit_compareAndJump(OpcodeID, int op1, int op2, unsigned target, RelationalCondition);

void emit_compareAndJumpSlow(int op1, int op2, unsigned target, DoubleCondition, size_t (JIT_OPERATION *operation)(ExecState*, EncodedJSValue, EncodedJSValue), bool invert, Vector<SlowCaseEntry>::iterator&);

void assertStackPointerOffset();

void emit_op_add(Instruction*);

void emit_op_bitand(Instruction*);

void emit_op_bitor(Instruction*);

void emit_op_bitxor(Instruction*);

void emit_op_call(Instruction*);

void emit_op_tail_call(Instruction*);

void emit_op_call_eval(Instruction*);

void emit_op_call_varargs(Instruction*);

void emit_op_tail_call_varargs(Instruction*);

void emit_op_construct_varargs(Instruction*);

void emit_op_catch(Instruction*);

void emit_op_construct(Instruction*);

void emit_op_create_this(Instruction*);

void emit_op_to_this(Instruction*);

void emit_op_create_direct_arguments(Instruction*);

void emit_op_create_scoped_arguments(Instruction*);

void emit_op_create_out_of_band_arguments(Instruction*);

void emit_op_check_tdz(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_get_scope(Instruction*);

void emit_op_load_arrowfunction_this(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_init_lazy_reg(Instruction*);

void emit_op_check_has_instance(Instruction*);

void emit_op_instanceof(Instruction*);

void emit_op_is_undefined(Instruction*);

void emit_op_is_boolean(Instruction*);

void emit_op_is_number(Instruction*);

void emit_op_is_string(Instruction*);

void emit_op_is_object(Instruction*);

void emit_op_jeq_null(Instruction*);

void emit_op_jfalse(Instruction*);

void emit_op_jmp(Instruction*);

void emit_op_jneq_null(Instruction*);

void emit_op_jneq_ptr(Instruction*);

void emit_op_jless(Instruction*);

void emit_op_jlesseq(Instruction*);

void emit_op_jgreater(Instruction*);

void emit_op_jgreatereq(Instruction*);

void emit_op_jnless(Instruction*);

void emit_op_jnlesseq(Instruction*);

void emit_op_jngreater(Instruction*);

void emit_op_jngreatereq(Instruction*);

void emit_op_jtrue(Instruction*);

void emit_op_loop_hint(Instruction*);

void emit_op_lshift(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_array_with_size(Instruction*);

void emit_op_new_array_buffer(Instruction*);

void emit_op_new_func(Instruction*);

void emit_op_new_func_exp(Instruction*);

void emit_op_new_arrow_func_exp(Instruction*);

void emit_op_new_object(Instruction*);

void emit_op_new_regexp(Instruction*);

void emit_op_not(Instruction*);

void emit_op_nstricteq(Instruction*);

void emit_op_dec(Instruction*);

void emit_op_inc(Instruction*);

void emit_op_profile_did_call(Instruction*);

void emit_op_profile_will_call(Instruction*);

void emit_op_profile_type(Instruction*);

void emit_op_profile_control_flow(Instruction*);

void emit_op_push_with_scope(Instruction*);

void emit_op_create_lexical_environment(Instruction*);

void emit_op_get_parent_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_by_id(Instruction*);

void emit_op_put_setter_by_id(Instruction*);

void emit_op_put_getter_setter(Instruction*);

void emit_op_put_getter_by_val(Instruction*);

void emit_op_put_setter_by_val(Instruction*);

void emit_op_ret(Instruction*);

void emit_op_rshift(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_arguments(Instruction*);

void emit_op_throw(Instruction*);

void emit_op_throw_static_error(Instruction*);

void emit_op_to_number(Instruction*);

void emit_op_to_string(Instruction*);

void emit_op_to_primitive(Instruction*);

void emit_op_unexpected_load(Instruction*);

void emit_op_unsigned(Instruction*);

void emit_op_urshift(Instruction*);

void emit_op_get_enumerable_length(Instruction*);

void emit_op_has_generic_property(Instruction*);

void emit_op_has_structure_property(Instruction*);

void emit_op_has_indexed_property(Instruction*);

void emit_op_get_direct_pname(Instruction*);

void emit_op_get_property_enumerator(Instruction*);

void emit_op_enumerator_structure_pname(Instruction*);

void emit_op_enumerator_generic_pname(Instruction*);

void emit_op_to_index_string(Instruction*);

void emitSlow_op_add(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_bitand(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_tail_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_tail_call_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_construct_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_construct(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_to_this(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_create_this(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_check_tdz(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_div(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_eq(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_get_callee(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_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_jless(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jgreater(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jgreatereq(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jnless(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jnlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jngreater(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jngreatereq(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_jtrue(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_loop_hint(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_lshift(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_new_object(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_not(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_nstricteq(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_dec(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_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_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_number(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_to_string(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_to_primitive(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_unsigned(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_urshift(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_has_indexed_property(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_has_structure_property(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_get_direct_pname(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emit_op_resolve_scope(Instruction*);

void emit_op_get_from_scope(Instruction*);

void emit_op_put_to_scope(Instruction*);

void emit_op_get_from_arguments(Instruction*);

void emit_op_put_to_arguments(Instruction*);

void emitSlow_op_resolve_scope(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_get_from_scope(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitSlow_op_put_to_scope(Instruction*, Vector<SlowCaseEntry>::iterator&);

void emitRightShift(Instruction*, bool isUnsigned);

void emitRightShiftSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned);

void emitNewFuncExprCommon(Instruction*);

void emitVarInjectionCheck(bool needsVarInjectionChecks);

void emitResolveClosure(int dst, int scope, bool needsVarInjectionChecks, unsigned depth);

void emitLoadWithStructureCheck(int scope, Structure** structureSlot);

void emitGetGlobalProperty(uintptr_t* operandSlot);

#if USE(JSVALUE64)

void emitGetVarFromPointer(JSValue* operand, GPRReg);

void emitGetVarFromIndirectPointer(JSValue** operand, GPRReg);

#else

void emitGetVarFromIndirectPointer(JSValue** operand, GPRReg tag, GPRReg payload);

void emitGetVarFromPointer(JSValue* operand, GPRReg tag, GPRReg payload);

#endif

void emitGetClosureVar(int scope, uintptr_t operand);

void emitPutGlobalProperty(uintptr_t* operandSlot, int value);

void emitNotifyWrite(WatchpointSet*);

void emitNotifyWrite(GPRReg pointerToSet);

void emitPutGlobalVariable(JSValue* operand, int value, WatchpointSet*);

void emitPutGlobalVariableIndirect(JSValue** addressOfOperand, int value, WatchpointSet**);

void emitPutClosureVar(int scope, uintptr_t operand, int value, WatchpointSet*);

void emitInitRegister(int dst);

void emitPutIntToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry);

JSValue getConstantOperand(int src);

bool isOperandConstantImmediateInt(int src);

bool isOperandConstantImmediateChar(int src);

Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter)

{

return iter++->from;

}

void linkSlowCase(Vector<SlowCaseEntry>::iterator& iter)

{

iter->from.link(this);

++iter;

}

void linkDummySlowCase(Vector<SlowCaseEntry>::iterator& iter)

{

ASSERT(!iter->from.isSet());

++iter;

}

void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int virtualRegisterIndex);

MacroAssembler::Call appendCallWithExceptionCheck(const FunctionPtr&);

#if OS(WINDOWS) && CPU(X86_64)

MacroAssembler::Call appendCallWithExceptionCheckAndSlowPathReturnType(const FunctionPtr&);

#endif

MacroAssembler::Call appendCallWithCallFrameRollbackOnException(const FunctionPtr&);

MacroAssembler::Call appendCallWithExceptionCheckSetJSValueResult(const FunctionPtr&, int);

MacroAssembler::Call appendCallWithExceptionCheckSetJSValueResultWithProfile(const FunctionPtr&, int);

enum WithProfileTag { WithProfile };

MacroAssembler::Call callOperation(C_JITOperation_E);

MacroAssembler::Call callOperation(C_JITOperation_EO, GPRReg);

MacroAssembler::Call callOperation(C_JITOperation_EL, GPRReg);

MacroAssembler::Call callOperation(C_JITOperation_EL, TrustedImmPtr);

MacroAssembler::Call callOperation(C_JITOperation_ESt, Structure*);

MacroAssembler::Call callOperation(C_JITOperation_EZ, int32_t);

MacroAssembler::Call callOperation(Z_JITOperation_EJZZ, GPRReg, int32_t, int32_t);

MacroAssembler::Call callOperation(J_JITOperation_E, int);

MacroAssembler::Call callOperation(J_JITOperation_EAapJ, int, ArrayAllocationProfile*, GPRReg);

MacroAssembler::Call callOperation(J_JITOperation_EAapJcpZ, int, ArrayAllocationProfile*, GPRReg, int32_t);

MacroAssembler::Call callOperation(J_JITOperation_EAapJcpZ, int, ArrayAllocationProfile*, const JSValue*, int32_t);

MacroAssembler::Call callOperation(J_JITOperation_EC, int, JSCell*);

MacroAssembler::Call callOperation(V_JITOperation_EC, JSCell*);

MacroAssembler::Call callOperation(J_JITOperation_EJ, int, GPRReg);

#if USE(JSVALUE64)

MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_ESsiJI, int, StructureStubInfo*, GPRReg, UniquedStringImpl*);

#else

MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_ESsiJI, int, StructureStubInfo*, GPRReg, GPRReg, UniquedStringImpl*);

#endif

MacroAssembler::Call callOperation(J_JITOperation_EJIdc, int, GPRReg, const Identifier*);

MacroAssembler::Call callOperation(J_JITOperation_EJJ, int, GPRReg, GPRReg);

MacroAssembler::Call callOperation(J_JITOperation_EJJAp, int, GPRReg, GPRReg, ArrayProfile*);

MacroAssembler::Call callOperation(J_JITOperation_EJJBy, int, GPRReg, GPRReg, ByValInfo*);

MacroAssembler::Call callOperation(C_JITOperation_EJsc, GPRReg);

MacroAssembler::Call callOperation(J_JITOperation_EJscC, int, GPRReg, JSCell*);

MacroAssembler::Call callOperation(J_JITOperation_EJscCJ, int, GPRReg, JSCell*, GPRReg);

MacroAssembler::Call callOperation(C_JITOperation_EJscZ, GPRReg, int32_t);

MacroAssembler::Call callOperation(C_JITOperation_EJscZ, int, GPRReg, int32_t);

#if USE(JSVALUE64)

MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_EJJ, int, GPRReg, GPRReg);

#else

MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_EJJ, int, GPRReg, GPRReg, GPRReg, GPRReg);

#endif

MacroAssembler::Call callOperation(J_JITOperation_EP, int, void*);

MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_EPc, int, Instruction*);

MacroAssembler::Call callOperation(J_JITOperation_EPc, int, Instruction*);

MacroAssembler::Call callOperation(J_JITOperation_EZ, int, int32_t);

MacroAssembler::Call callOperation(J_JITOperation_EZZ, int, int32_t, int32_t);

MacroAssembler::Call callOperation(P_JITOperation_E);

MacroAssembler::Call callOperation(P_JITOperation_EJS, GPRReg, size_t);

MacroAssembler::Call callOperation(S_JITOperation_ECC, RegisterID, RegisterID);

MacroAssembler::Call callOperation(S_JITOperation_EJ, RegisterID);

MacroAssembler::Call callOperation(S_JITOperation_EJJ, RegisterID, RegisterID);

MacroAssembler::Call callOperation(S_JITOperation_EOJss, RegisterID, RegisterID);

MacroAssembler::Call callOperation(Sprt_JITOperation_EZ, int32_t);

MacroAssembler::Call callOperation(V_JITOperation_E);

MacroAssembler::Call callOperation(V_JITOperation_EC, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_ECC, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_ECIZC, RegisterID, const Identifier*, int32_t, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_ECIZCC, RegisterID, const Identifier*, int32_t, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_ECJZC, RegisterID, RegisterID, RegisterID, int32_t, RegisterID);

MacroAssembler::Call callOperation(J_JITOperation_EE, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EZSymtabJ, int, SymbolTable*, RegisterID);

MacroAssembler::Call callOperation(J_JITOperation_EZSymtabJ, int, SymbolTable*, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJ, RegisterID);

MacroAssembler::Call callOperationNoExceptionCheck(Z_JITOperation_E);

#if USE(JSVALUE64)

MacroAssembler::Call callOperationNoExceptionCheck(V_JITOperation_EJ, RegisterID);

#else

MacroAssembler::Call callOperationNoExceptionCheck(V_JITOperation_EJ, RegisterID, RegisterID);

#endif

MacroAssembler::Call callOperation(V_JITOperation_EJIdZJ, RegisterID, const Identifier*, int32_t, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJIdZJJ, RegisterID, const Identifier*, int32_t, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJJZJ, RegisterID, RegisterID, int32_t, RegisterID);

#if USE(JSVALUE64)

MacroAssembler::Call callOperation(F_JITOperation_EFJZZ, RegisterID, RegisterID, int32_t, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_ESsiJJI, StructureStubInfo*, RegisterID, RegisterID, UniquedStringImpl*);

#else

MacroAssembler::Call callOperation(V_JITOperation_ESsiJJI, StructureStubInfo*, RegisterID, RegisterID, RegisterID, RegisterID, UniquedStringImpl*);

#endif

MacroAssembler::Call callOperation(V_JITOperation_EJJJ, RegisterID, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJJJAp, RegisterID, RegisterID, RegisterID, ArrayProfile*);

MacroAssembler::Call callOperation(V_JITOperation_EJJJBy, RegisterID, RegisterID, RegisterID, ByValInfo*);

MacroAssembler::Call callOperation(V_JITOperation_EJZJ, RegisterID, int32_t, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJZ, RegisterID, int32_t);

MacroAssembler::Call callOperation(V_JITOperation_EPc, Instruction*);

MacroAssembler::Call callOperation(V_JITOperation_EZ, int32_t);

MacroAssembler::Call callOperation(V_JITOperation_EZJ, int, GPRReg);

MacroAssembler::Call callOperationWithCallFrameRollbackOnException(J_JITOperation_E);

MacroAssembler::Call callOperationWithCallFrameRollbackOnException(V_JITOperation_ECb, CodeBlock*);

MacroAssembler::Call callOperationWithCallFrameRollbackOnException(Z_JITOperation_E);

#if USE(JSVALUE32_64)

MacroAssembler::Call callOperation(F_JITOperation_EFJZZ, RegisterID, RegisterID, RegisterID, int32_t, RegisterID);

MacroAssembler::Call callOperation(Z_JITOperation_EJZZ, GPRReg, GPRReg, int32_t, int32_t);

MacroAssembler::Call callOperation(J_JITOperation_EAapJ, int, ArrayAllocationProfile*, GPRReg, GPRReg);

MacroAssembler::Call callOperation(J_JITOperation_EJ, int, GPRReg, GPRReg);

MacroAssembler::Call callOperation(J_JITOperation_EJIdc, int, GPRReg, GPRReg, const Identifier*);

MacroAssembler::Call callOperation(J_JITOperation_EJJ, int, GPRReg, GPRReg, GPRReg, GPRReg);

MacroAssembler::Call callOperation(J_JITOperation_EJJAp, int, GPRReg, GPRReg, GPRReg, GPRReg, ArrayProfile*);

MacroAssembler::Call callOperation(J_JITOperation_EJJBy, int, GPRReg, GPRReg, GPRReg, GPRReg, ByValInfo*);

MacroAssembler::Call callOperation(P_JITOperation_EJS, GPRReg, GPRReg, size_t);

MacroAssembler::Call callOperation(S_JITOperation_EJ, RegisterID, RegisterID);

MacroAssembler::Call callOperation(S_JITOperation_EJJ, RegisterID, RegisterID, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EZSymtabJ, int, SymbolTable*, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJ, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJJJ, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EJJJAp, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, ArrayProfile*);

MacroAssembler::Call callOperation(V_JITOperation_EJJJBy, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, ByValInfo*);

MacroAssembler::Call callOperation(V_JITOperation_EJZ, RegisterID, RegisterID, int32_t);

MacroAssembler::Call callOperation(V_JITOperation_EJZJ, RegisterID, RegisterID, int32_t, RegisterID, RegisterID);

MacroAssembler::Call callOperation(V_JITOperation_EZJ, int32_t, RegisterID, RegisterID);

MacroAssembler::Call callOperation(J_JITOperation_EJscCJ, int, GPRReg, JSCell*, GPRReg, GPRReg);

#endif

Jump checkStructure(RegisterID reg, Structure* structure);

void updateTopCallFrame();

Call emitNakedCall(CodePtr function = CodePtr());

Call emitNakedTailCall(CodePtr function = CodePtr());

// Loads the character value of a single character string into dst.

void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures);

#if ENABLE(DFG_JIT)

void emitEnterOptimizationCheck();

#else

void emitEnterOptimizationCheck() { }

#endif

#ifndef NDEBUG

void printBytecodeOperandTypes(int src1, int src2);

#endif

#if ENABLE(SAMPLING_FLAGS)

void setSamplingFlag(int32_t);

void clearSamplingFlag(int32_t);

#endif

#if ENABLE(SAMPLING_COUNTERS)

void emitCount(AbstractSamplingCounter&, int32_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

#if ENABLE(DFG_JIT)

bool canBeOptimized() { return m_canBeOptimized; }

bool canBeOptimizedOrInlined() { return m_canBeOptimizedOrInlined; }

bool shouldEmitProfiling() { return m_shouldEmitProfiling; }

#else

bool canBeOptimized() { return false; }

bool canBeOptimizedOrInlined() { return false; }

// Enables use of value profiler with tiered compilation turned off,

// in which case all code gets profiled.

bool shouldEmitProfiling() { return false; }

#endif

Interpreter* m_interpreter;

Vector<CallRecord> m_calls;

Vector<Label> m_labels;

Vector<JITGetByIdGenerator> m_getByIds;

Vector<JITPutByIdGenerator> m_putByIds;

Vector<ByValCompilationInfo> m_byValCompilationInfo;

Vector<CallCompilationInfo> m_callCompilationInfo;

Vector<JumpTable> m_jmpTable;

unsigned m_bytecodeOffset;

Vector<SlowCaseEntry> m_slowCases;

Vector<SwitchRecord> m_switches;

JumpList m_exceptionChecks;

JumpList m_exceptionChecksWithCallFrameRollback;

unsigned m_getByIdIndex;

unsigned m_putByIdIndex;

unsigned m_byValInstructionIndex;

unsigned m_callLinkInfoIndex;

std::unique_ptr<JITDisassembler> m_disassembler;

RefPtr<Profiler::Compilation> m_compilation;

WeakRandom m_randomGenerator;

static CodeRef stringGetByValStubGenerator(VM*);

bool m_canBeOptimized;

bool m_canBeOptimizedOrInlined;

bool m_shouldEmitProfiling;