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#ifndef QV4ISEL_MASM_P_H
#define QV4ISEL_MASM_P_H

#include "qv4global_p.h"
#include "qv4jsir_p.h"
#include "qv4isel_p.h"
#include "qv4isel_util_p.h"
#include "qv4object_p.h"
#include "qv4runtime_p.h"
#include "qv4lookup_p.h"

#include <QtCore/QHash>
#include <config.h>
#include <wtf/Vector.h>
#include <assembler/MacroAssembler.h>

namespace QQmlJS {
namespace MASM {

class Assembler : public JSC::MacroAssembler
{
public:
    Assembler(V4IR::Function* function, QV4::Function *vmFunction, QV4::ExecutionEngine *engine);
#if CPU(X86)

#undef VALUE_FITS_IN_REGISTER
#undef ARGUMENTS_IN_REGISTERS

#if OS(WINDOWS)
    // Returned in EAX:EDX pair
#define RETURN_VALUE_IN_REGISTER
#else
#undef RETURN_VALUE_IN_REGISTER
#endif

#define HAVE_ALU_OPS_WITH_MEM_OPERAND 1

    static const RegisterID StackFrameRegister = JSC::X86Registers::ebp;
    static const RegisterID StackPointerRegister = JSC::X86Registers::esp;
    static const RegisterID LocalsRegister = JSC::X86Registers::edi;
    static const RegisterID ContextRegister = JSC::X86Registers::esi;
    static const RegisterID ReturnValueRegister = JSC::X86Registers::eax;
    static const RegisterID ScratchRegister = JSC::X86Registers::ecx;
    static const RegisterID IntegerOpRegister = JSC::X86Registers::eax;
    static const FPRegisterID FPGpr0 = JSC::X86Registers::xmm0;

    static const int RegisterSize = 4;

    static const int RegisterArgumentCount = 0;
    static RegisterID registerForArgument(int)
    {
        assert(false);
        // Not reached.
        return JSC::X86Registers::eax;
    }

    // Return address is pushed onto stack by the CPU.
    static const int StackSpaceAllocatedUponFunctionEntry = RegisterSize;
    inline void platformEnterStandardStackFrame() {}
    inline void platformLeaveStandardStackFrame() {}
#elif CPU(X86_64)

#define VALUE_FITS_IN_REGISTER
#define ARGUMENTS_IN_REGISTERS
#define RETURN_VALUE_IN_REGISTER
#define HAVE_ALU_OPS_WITH_MEM_OPERAND 1

    static const RegisterID StackFrameRegister = JSC::X86Registers::ebp;
    static const RegisterID StackPointerRegister = JSC::X86Registers::esp;
    static const RegisterID LocalsRegister = JSC::X86Registers::r12;
    static const RegisterID ContextRegister = JSC::X86Registers::r14;
    static const RegisterID ReturnValueRegister = JSC::X86Registers::eax;
    static const RegisterID ScratchRegister = JSC::X86Registers::r10;
    static const RegisterID IntegerOpRegister = JSC::X86Registers::eax;
    static const FPRegisterID FPGpr0 = JSC::X86Registers::xmm0;

    static const int RegisterSize = 8;

    static const int RegisterArgumentCount = 6;
    static RegisterID registerForArgument(int index)
    {
        static RegisterID regs[RegisterArgumentCount] = {
            JSC::X86Registers::edi,
            JSC::X86Registers::esi,
            JSC::X86Registers::edx,
            JSC::X86Registers::ecx,
            JSC::X86Registers::r8,
            JSC::X86Registers::r9
        };
        assert(index >= 0 && index < RegisterArgumentCount);
        return regs[index];
    };

    // Return address is pushed onto stack by the CPU.
    static const int StackSpaceAllocatedUponFunctionEntry = RegisterSize;
    inline void platformEnterStandardStackFrame() {}
    inline void platformLeaveStandardStackFrame() {}
#elif CPU(ARM)

#undef VALUE_FITS_IN_REGISTER
#define ARGUMENTS_IN_REGISTERS
#undef RETURN_VALUE_IN_REGISTER
#undef HAVE_ALU_OPS_WITH_MEM_OPERAND

    static const RegisterID StackFrameRegister = JSC::ARMRegisters::r4;
    static const RegisterID StackPointerRegister = JSC::ARMRegisters::sp;
    static const RegisterID LocalsRegister = JSC::ARMRegisters::r7;
    static const RegisterID ContextRegister = JSC::ARMRegisters::r5;
    static const RegisterID ReturnValueRegister = JSC::ARMRegisters::r0;
    static const RegisterID ScratchRegister = JSC::ARMRegisters::r6;
    static const RegisterID IntegerOpRegister = JSC::ARMRegisters::r0;
    static const FPRegisterID FPGpr0 = JSC::ARMRegisters::d0;

    static const int RegisterSize = 4;

    static const RegisterID RegisterArgument1 = JSC::ARMRegisters::r0;
    static const RegisterID RegisterArgument2 = JSC::ARMRegisters::r1;
    static const RegisterID RegisterArgument3 = JSC::ARMRegisters::r2;
    static const RegisterID RegisterArgument4 = JSC::ARMRegisters::r3;

    static const int RegisterArgumentCount = 4;
    static RegisterID registerForArgument(int index)
    {
        assert(index >= 0 && index < RegisterArgumentCount);
        return static_cast<RegisterID>(JSC::ARMRegisters::r0 + index);
    };

    // Registers saved in platformEnterStandardStackFrame below.
    static const int StackSpaceAllocatedUponFunctionEntry = 5 * RegisterSize;
    inline void platformEnterStandardStackFrame()
    {
        // Move the register arguments onto the stack as if they were
        // pushed by the caller, just like on ia32. This gives us consistent
        // access to the parameters if we need to.
        push(JSC::ARMRegisters::r3);
        push(JSC::ARMRegisters::r2);
        push(JSC::ARMRegisters::r1);
        push(JSC::ARMRegisters::r0);
        push(JSC::ARMRegisters::lr);
    }
    inline void platformLeaveStandardStackFrame()
    {
        pop(JSC::ARMRegisters::lr);
        pop(JSC::ARMRegisters::r0);
        pop(JSC::ARMRegisters::r1);
        pop(JSC::ARMRegisters::r2);
        pop(JSC::ARMRegisters::r3);
    }
#else
#error The JIT needs to be ported to this platform.
#endif
    static const int calleeSavedRegisterCount;

#if CPU(X86) || CPU(X86_64)
    static const int StackAlignment = 16;
#elif CPU(ARM)
    // Per AAPCS
    static const int StackAlignment = 8;
#else
#error Stack alignment unknown for this platform.
#endif

    // Explicit type to allow distinguishing between
    // pushing an address itself or the value it points
    // to onto the stack when calling functions.
    struct Pointer : public Address
    {
        explicit Pointer(const Address& addr)
            : Address(addr)
        {}
        explicit Pointer(RegisterID reg, int32_t offset)
            : Address(reg, offset)
        {}
    };

    struct VoidType { VoidType() {} };
    static const VoidType Void;


    typedef JSC::FunctionPtr FunctionPtr;

    struct CallToLink {
        Call call;
        FunctionPtr externalFunction;
        const char* functionName;
    };
    struct PointerToValue {
        PointerToValue(V4IR::Temp *value) : value(value) {}
        V4IR::Temp *value;
    };
    struct Reference {
        Reference(V4IR::Temp *value) : value(value) {}
        V4IR::Temp *value;
    };

    struct ReentryBlock {
        ReentryBlock(V4IR::BasicBlock *b) : block(b) {}
        V4IR::BasicBlock *block;
    };

    void callAbsolute(const char* functionName, FunctionPtr function) {
        CallToLink ctl;
        ctl.call = call();
        ctl.externalFunction = function;
        ctl.functionName = functionName;
        _callsToLink.append(ctl);
    }

    void callAbsolute(const char* /*functionName*/, Address addr) {
        call(addr);
    }

    void registerBlock(V4IR::BasicBlock*, V4IR::BasicBlock *nextBlock);
    void jumpToBlock(V4IR::BasicBlock* current, V4IR::BasicBlock *target);
    void addPatch(V4IR::BasicBlock* targetBlock, Jump targetJump);
    void addPatch(DataLabelPtr patch, Label target);
    void addPatch(DataLabelPtr patch, V4IR::BasicBlock *target);

    Pointer loadTempAddress(RegisterID reg, V4IR::Temp *t);

    void loadArgumentInRegister(RegisterID source, RegisterID dest)
    {
        move(source, dest);
    }

    void loadArgumentInRegister(TrustedImmPtr ptr, RegisterID dest)
    {
        move(TrustedImmPtr(ptr), dest);
    }

    void loadArgumentInRegister(const Pointer& ptr, RegisterID dest)
    {
        addPtr(TrustedImm32(ptr.offset), ptr.base, dest);
    }

    void loadArgumentInRegister(PointerToValue temp, RegisterID dest)
    {
        if (!temp.value) {
            loadArgumentInRegister(TrustedImmPtr(0), dest);
        } else {
            Pointer addr = loadTempAddress(dest, temp.value);
            loadArgumentInRegister(addr, dest);
        }
    }

    void loadArgumentInRegister(Reference temp, RegisterID dest)
    {
        assert(temp.value);
        Pointer addr = loadTempAddress(dest, temp.value);
        loadArgumentInRegister(addr, dest);
    }

    void loadArgumentInRegister(ReentryBlock block, RegisterID dest)
    {
        assert(block.block);
        DataLabelPtr patch = moveWithPatch(TrustedImmPtr(0), dest);
        addPatch(patch, block.block);
    }

#ifdef VALUE_FITS_IN_REGISTER
    void loadArgumentInRegister(V4IR::Temp* temp, RegisterID dest)
    {
        if (!temp) {
            QV4::Value undefined = QV4::Value::undefinedValue();
            move(TrustedImm64(undefined.val), dest);
        } else {
            Pointer addr = loadTempAddress(dest, temp);
            load64(addr, dest);
        }
    }

    void loadArgumentInRegister(V4IR::Const* c, RegisterID dest)
    {
        QV4::Value v = convertToValue(c);
        move(TrustedImm64(v.val), dest);
    }

    void loadArgumentInRegister(V4IR::Expr* expr, RegisterID dest)
    {
        if (!expr) {
            QV4::Value undefined = QV4::Value::undefinedValue();
            move(TrustedImm64(undefined.val), dest);
        } else if (expr->asTemp()){
            loadArgumentInRegister(expr->asTemp(), dest);
        } else if (expr->asConst()) {
            loadArgumentInRegister(expr->asConst(), dest);
        } else {
            assert(!"unimplemented expression type in loadArgument");
        }
    }
#else
    void loadArgumentInRegister(V4IR::Expr*, RegisterID)
    {
        assert(!"unimplemented: expression in loadArgument");
    }
#endif

    void loadArgumentInRegister(QV4::String* string, RegisterID dest)
    {
        loadArgumentInRegister(TrustedImmPtr(string), dest);
    }

    void loadArgumentInRegister(TrustedImm32 imm32, RegisterID dest)
    {
        xorPtr(dest, dest);
        if (imm32.m_value)
            move(imm32, dest);
    }

    void storeReturnValue(RegisterID dest)
    {
        move(ReturnValueRegister, dest);
    }

#ifdef VALUE_FITS_IN_REGISTER
    void storeReturnValue(const Pointer &dest)
    {
        store64(ReturnValueRegister, dest);
    }

    void storeReturnValue(V4IR::Temp *temp)
    {
        if (!temp)
            return;
        Pointer addr = loadTempAddress(ScratchRegister, temp);
        storeReturnValue(addr);
    }
#endif

    void storeReturnValue(VoidType)
    {
    }

    template <int StackSlot>
    void loadArgumentOnStack(RegisterID reg)
    {
        poke(reg, StackSlot);
    }

    template <int StackSlot>
    void loadArgumentOnStack(TrustedImm32 value)
    {
        poke(value, StackSlot);
    }

    template <int StackSlot>
    void loadArgumentOnStack(const Pointer& ptr)
    {
        addPtr(TrustedImm32(ptr.offset), ptr.base, ScratchRegister);
        poke(ScratchRegister, StackSlot);
    }

    template <int StackSlot>
    void loadArgumentOnStack(PointerToValue temp)
    {
        if (temp.value) {
            Pointer ptr = loadTempAddress(ScratchRegister, temp.value);
            loadArgumentOnStack<StackSlot>(ptr);
        } else {
            poke(TrustedImmPtr(0), StackSlot);
        }
    }

    template <int StackSlot>
    void loadArgumentOnStack(Reference temp)
    {
        assert (temp.value);

        Pointer ptr = loadTempAddress(ScratchRegister, temp.value);
        loadArgumentOnStack<StackSlot>(ptr);
    }

    template <int StackSlot>
    void loadArgumentOnStack(ReentryBlock block)
    {
        assert(block.block);
        DataLabelPtr patch = moveWithPatch(TrustedImmPtr(0), ScratchRegister);
        poke(ScratchRegister, StackSlot);
        addPatch(patch, block.block);
    }

    template <int StackSlot>
    void loadArgumentOnStack(TrustedImmPtr ptr)
    {
        move(TrustedImmPtr(ptr), ScratchRegister);
        poke(ScratchRegister, StackSlot);
    }

    template <int StackSlot>
    void loadArgumentOnStack(QV4::String* name)
    {
        poke(TrustedImmPtr(name), StackSlot);
    }

    using JSC::MacroAssembler::loadDouble;
    void loadDouble(V4IR::Temp* temp, FPRegisterID dest)
    {
        Pointer ptr = loadTempAddress(ScratchRegister, temp);
        loadDouble(ptr, dest);
    }

    using JSC::MacroAssembler::storeDouble;
    void storeDouble(FPRegisterID source, V4IR::Temp* temp)
    {
        Pointer ptr = loadTempAddress(ScratchRegister, temp);
        storeDouble(source, ptr);
    }

    template <typename Result, typename Source>
    void copyValue(Result result, Source source);
    template <typename Result>
    void copyValue(Result result, V4IR::Expr* source);

    void storeValue(QV4::Value value, Address destination)
    {
#ifdef VALUE_FITS_IN_REGISTER
        store64(TrustedImm64(value.val), destination);
#else
        store32(TrustedImm32(value.int_32), destination);
        destination.offset += 4;
        store32(TrustedImm32(value.tag), destination);
#endif
    }

    void storeValue(QV4::Value value, V4IR::Temp* temp);

    static int calculateStackFrameSize(int locals);
    void enterStandardStackFrame(int locals);
    void leaveStandardStackFrame(int locals);

    template <int argumentNumber, typename T>
    void loadArgumentOnStackOrRegister(const T &value)
    {
        if (argumentNumber < RegisterArgumentCount)
            loadArgumentInRegister(value, registerForArgument(argumentNumber));
        else
            loadArgumentOnStack<argumentNumber - RegisterArgumentCount>(value);
    }

    template <int argumentNumber>
    void loadArgumentOnStackOrRegister(const VoidType &value)
    {
        Q_UNUSED(value);
    }

    template <bool selectFirst, int First, int Second>
    struct Select
    {
        enum { Chosen = First };
    };

    template <int First, int Second>
    struct Select<false, First, Second>
    {
        enum { Chosen = Second };
    };

    template <int ArgumentIndex, typename Parameter>
    struct SizeOnStack
    {
        enum { Size = Select<ArgumentIndex >= RegisterArgumentCount, QT_POINTER_SIZE, 0>::Chosen };
    };

    template <int ArgumentIndex>
    struct SizeOnStack<ArgumentIndex, VoidType>
    {
        enum { Size = 0 };
    };


    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6>
    void generateFunctionCallImp(ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, Arg5 arg5, Arg6 arg6)
    {
        int stackSpaceNeeded =   SizeOnStack<0, Arg1>::Size
                               + SizeOnStack<1, Arg2>::Size
                               + SizeOnStack<2, Arg3>::Size
                               + SizeOnStack<3, Arg4>::Size
                               + SizeOnStack<4, Arg5>::Size
                               + SizeOnStack<5, Arg6>::Size;

        if (stackSpaceNeeded) {
            stackSpaceNeeded = WTF::roundUpToMultipleOf(StackAlignment, stackSpaceNeeded);
            sub32(TrustedImm32(stackSpaceNeeded), StackPointerRegister);
        }

        loadArgumentOnStackOrRegister<5>(arg6);
        loadArgumentOnStackOrRegister<4>(arg5);
        loadArgumentOnStackOrRegister<3>(arg4);
        loadArgumentOnStackOrRegister<2>(arg3);
        loadArgumentOnStackOrRegister<1>(arg2);
        loadArgumentOnStackOrRegister<0>(arg1);

        callAbsolute(functionName, function);

        storeReturnValue(r);

        if (stackSpaceNeeded)
            add32(TrustedImm32(stackSpaceNeeded), StackPointerRegister);
    }

    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
    void generateFunctionCallImp(ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, Arg5 arg5)
    {
        generateFunctionCallImp(r, functionName, function, arg1, arg2, arg3, arg4, arg5, VoidType());
    }

    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
    void generateFunctionCallImp(ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4)
    {
        generateFunctionCallImp(r, functionName, function, arg1, arg2, arg3, arg4, VoidType());
    }

    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3>
    void generateFunctionCallImp(ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3)
    {
        generateFunctionCallImp(r, functionName, function, arg1, arg2, arg3, VoidType(), VoidType());
    }

    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2>
    void generateFunctionCallImp(ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2)
    {
        generateFunctionCallImp(r, functionName, function, arg1, arg2, VoidType(), VoidType(), VoidType());
    }

    template <typename ArgRet, typename Callable, typename Arg1>
    void generateFunctionCallImp(ArgRet r, const char* functionName, Callable function, Arg1 arg1)
    {
        generateFunctionCallImp(r, functionName, function, arg1, VoidType(), VoidType(), VoidType(), VoidType());
    }

    typedef Jump (Assembler::*MemRegBinOp)(Address, RegisterID);
    typedef Jump (Assembler::*ImmRegBinOp)(TrustedImm32, RegisterID);

    struct BinaryOperationInfo {
        const char *name;
        BinOp fallbackImplementation;
        MemRegBinOp inlineMemRegOp;
        ImmRegBinOp inlineImmRegOp;
    };

    static const BinaryOperationInfo binaryOperations[QQmlJS::V4IR::LastAluOp + 1];

    void generateBinOp(V4IR::AluOp operation, V4IR::Temp* target, V4IR::Temp* left, V4IR::Temp* right);

    Jump inline_add32(Address addr, RegisterID reg)
    {
#if HAVE(ALU_OPS_WITH_MEM_OPERAND)
        return branchAdd32(Overflow, addr, reg);
#else
        load32(addr, ScratchRegister);
        return branchAdd32(Overflow, ScratchRegister, reg);
#endif
    }

    Jump inline_add32(TrustedImm32 imm, RegisterID reg)
    {
        return branchAdd32(Overflow, imm, reg);
    }

    Jump inline_sub32(Address addr, RegisterID reg)
    {
#if HAVE(ALU_OPS_WITH_MEM_OPERAND)
        return branchSub32(Overflow, addr, reg);
#else
        load32(addr, ScratchRegister);
        return branchSub32(Overflow, ScratchRegister, reg);
#endif
    }

    Jump inline_sub32(TrustedImm32 imm, RegisterID reg)
    {
        return branchSub32(Overflow, imm, reg);
    }

    Jump inline_mul32(Address addr, RegisterID reg)
    {
#if HAVE(ALU_OPS_WITH_MEM_OPERAND)
        return branchMul32(Overflow, addr, reg);
#else
        load32(addr, ScratchRegister);
        return branchMul32(Overflow, ScratchRegister, reg);
#endif
    }

    Jump inline_mul32(TrustedImm32 imm, RegisterID reg)
    {
        return branchMul32(Overflow, imm, reg, reg);
    }

    Jump inline_shl32(Address addr, RegisterID reg)
    {
        load32(addr, ScratchRegister);
        and32(TrustedImm32(0x1f), ScratchRegister);
        lshift32(ScratchRegister, reg);
        return Jump();
    }

    Jump inline_shl32(TrustedImm32 imm, RegisterID reg)
    {
        imm.m_value &= 0x1f;
        lshift32(imm, reg);
        return Jump();
    }

    Jump inline_shr32(Address addr, RegisterID reg)
    {
        load32(addr, ScratchRegister);
        and32(TrustedImm32(0x1f), ScratchRegister);
        rshift32(ScratchRegister, reg);
        return Jump();
    }

    Jump inline_shr32(TrustedImm32 imm, RegisterID reg)
    {
        imm.m_value &= 0x1f;
        rshift32(imm, reg);
        return Jump();
    }

    Jump inline_ushr32(Address addr, RegisterID reg)
    {
        load32(addr, ScratchRegister);
        and32(TrustedImm32(0x1f), ScratchRegister);
        urshift32(ScratchRegister, reg);
        return branchTest32(Signed, reg, reg);
    }

    Jump inline_ushr32(TrustedImm32 imm, RegisterID reg)
    {
        imm.m_value &= 0x1f;
        urshift32(imm, reg);
        return branchTest32(Signed, reg, reg);
    }

    Jump inline_and32(Address addr, RegisterID reg)
    {
#if HAVE(ALU_OPS_WITH_MEM_OPERAND)
        and32(addr, reg);
#else
        load32(addr, ScratchRegister);
        and32(ScratchRegister, reg);
#endif
        return Jump();
    }

    Jump inline_and32(TrustedImm32 imm, RegisterID reg)
    {
        and32(imm, reg);
        return Jump();
    }

    Jump inline_or32(Address addr, RegisterID reg)
    {
#if HAVE(ALU_OPS_WITH_MEM_OPERAND)
        or32(addr, reg);
#else
        load32(addr, ScratchRegister);
        or32(ScratchRegister, reg);
#endif
        return Jump();
    }

    Jump inline_or32(TrustedImm32 imm, RegisterID reg)
    {
        or32(imm, reg);
        return Jump();
    }

    Jump inline_xor32(Address addr, RegisterID reg)
    {
#if HAVE(ALU_OPS_WITH_MEM_OPERAND)
        xor32(addr, reg);
#else
        load32(addr, ScratchRegister);
        xor32(ScratchRegister, reg);
#endif
        return Jump();
    }

    Jump inline_xor32(TrustedImm32 imm, RegisterID reg)
    {
        xor32(imm, reg);
        return Jump();
    }

    void link(QV4::Function *vmFunc);

    void recordLineNumber(int lineNumber);

private:
    V4IR::Function *_function;
    QV4::Function *_vmFunction;
    QHash<V4IR::BasicBlock *, Label> _addrs;
    QHash<V4IR::BasicBlock *, QVector<Jump> > _patches;
    QList<CallToLink> _callsToLink;

    struct DataLabelPatch {
        DataLabelPtr dataLabel;
        Label target;
    };
    QList<DataLabelPatch> _dataLabelPatches;

    QHash<V4IR::BasicBlock *, QVector<DataLabelPtr> > _labelPatches;
    V4IR::BasicBlock *_nextBlock;

    QV4::ExecutionEngine *_engine;

    struct CodeLineNumerMapping
    {
        Assembler::Label location;
        int lineNumber;
    };
    QVector<CodeLineNumerMapping> codeLineNumberMappings;
};

class Q_QML_EXPORT InstructionSelection:
        protected V4IR::InstructionSelection,
        public EvalInstructionSelection
{
public:
    InstructionSelection(QV4::ExecutionEngine *engine, V4IR::Module *module);
    ~InstructionSelection();

    virtual void run(QV4::Function *vmFunction, V4IR::Function *function);

protected:
    virtual void callBuiltinInvalid(V4IR::Name *func, V4IR::ExprList *args, V4IR::Temp *result);
    virtual void callBuiltinTypeofMember(V4IR::Temp *base, const QString &name, V4IR::Temp *result);
    virtual void callBuiltinTypeofSubscript(V4IR::Temp *base, V4IR::Temp *index, V4IR::Temp *result);
    virtual void callBuiltinTypeofName(const QString &name, V4IR::Temp *result);
    virtual void callBuiltinTypeofValue(V4IR::Temp *value, V4IR::Temp *result);
    virtual void callBuiltinDeleteMember(V4IR::Temp *base, const QString &name, V4IR::Temp *result);
    virtual void callBuiltinDeleteSubscript(V4IR::Temp *base, V4IR::Temp *index, V4IR::Temp *result);
    virtual void callBuiltinDeleteName(const QString &name, V4IR::Temp *result);
    virtual void callBuiltinDeleteValue(V4IR::Temp *result);
    virtual void callBuiltinPostDecrementMember(V4IR::Temp *base, const QString &name, V4IR::Temp *result);
    virtual void callBuiltinPostDecrementSubscript(V4IR::Temp *base, V4IR::Temp *index, V4IR::Temp *result);
    virtual void callBuiltinPostDecrementName(const QString &name, V4IR::Temp *result);
    virtual void callBuiltinPostDecrementValue(V4IR::Temp *value, V4IR::Temp *result);
    virtual void callBuiltinPostIncrementMember(V4IR::Temp *base, const QString &name, V4IR::Temp *result);
    virtual void callBuiltinPostIncrementSubscript(V4IR::Temp *base, V4IR::Temp *index, V4IR::Temp *result);
    virtual void callBuiltinPostIncrementName(const QString &name, V4IR::Temp *result);
    virtual void callBuiltinPostIncrementValue(V4IR::Temp *value, V4IR::Temp *result);
    virtual void callBuiltinThrow(V4IR::Temp *arg);
    virtual void callBuiltinFinishTry();
    virtual void callBuiltinForeachIteratorObject(V4IR::Temp *arg, V4IR::Temp *result);
    virtual void callBuiltinForeachNextPropertyname(V4IR::Temp *arg, V4IR::Temp *result);
    virtual void callBuiltinPushWithScope(V4IR::Temp *arg);
    virtual void callBuiltinPopScope();
    virtual void callBuiltinDeclareVar(bool deletable, const QString &name);
    virtual void callBuiltinDefineGetterSetter(V4IR::Temp *object, const QString &name, V4IR::Temp *getter, V4IR::Temp *setter);
    virtual void callBuiltinDefineProperty(V4IR::Temp *object, const QString &name, V4IR::Temp *value);
    virtual void callBuiltinDefineArray(V4IR::Temp *result, V4IR::ExprList *args);
    virtual void callBuiltinDefineObjectLiteral(V4IR::Temp *result, V4IR::ExprList *args);
    virtual void callValue(V4IR::Temp *value, V4IR::ExprList *args, V4IR::Temp *result);
    virtual void callProperty(V4IR::Temp *base, const QString &name, V4IR::ExprList *args, V4IR::Temp *result);
    virtual void callSubscript(V4IR::Temp *base, V4IR::Temp *index, V4IR::ExprList *args, V4IR::Temp *result);
    virtual void convertType(V4IR::Temp *source, V4IR::Temp *target);
    virtual void loadThisObject(V4IR::Temp *temp);
    virtual void loadConst(V4IR::Const *sourceConst, V4IR::Temp *targetTemp);
    virtual void loadString(const QString &str, V4IR::Temp *targetTemp);
    virtual void loadRegexp(V4IR::RegExp *sourceRegexp, V4IR::Temp *targetTemp);
    virtual void getActivationProperty(const V4IR::Name *name, V4IR::Temp *temp);
    virtual void setActivationProperty(V4IR::Temp *source, const QString &targetName);
    virtual void initClosure(V4IR::Closure *closure, V4IR::Temp *target);
    virtual void getProperty(V4IR::Temp *base, const QString &name, V4IR::Temp *target);
    virtual void setProperty(V4IR::Temp *source, V4IR::Temp *targetBase, const QString &targetName);
    virtual void getElement(V4IR::Temp *base, V4IR::Temp *index, V4IR::Temp *target);
    virtual void setElement(V4IR::Temp *source, V4IR::Temp *targetBase, V4IR::Temp *targetIndex);
    virtual void copyValue(V4IR::Temp *sourceTemp, V4IR::Temp *targetTemp);
    virtual void unop(V4IR::AluOp oper, V4IR::Temp *sourceTemp, V4IR::Temp *targetTemp);
    virtual void binop(V4IR::AluOp oper, V4IR::Expr *leftSource, V4IR::Expr *rightSource, V4IR::Temp *target);
    virtual void inplaceNameOp(V4IR::AluOp oper, V4IR::Temp *rightSource, const QString &targetName);
    virtual void inplaceElementOp(V4IR::AluOp oper, V4IR::Temp *source, V4IR::Temp *targetBaseTemp, V4IR::Temp *targetIndexTemp);
    virtual void inplaceMemberOp(V4IR::AluOp oper, V4IR::Temp *source, V4IR::Temp *targetBase, const QString &targetName);

    typedef Assembler::Address Address;
    typedef Assembler::Pointer Pointer;

    Address addressForArgument(int index) const
    {
        // StackFrameRegister points to its old value on the stack, and above
        // it we have the return address, hence the need to step over two
        // values before reaching the first argument.
        return Address(Assembler::StackFrameRegister, (index + 2) * sizeof(void*));
    }

    // Some run-time functions take (Value* args, int argc). This function is for populating
    // the args.
    Pointer argumentAddressForCall(int argument)
    {
        const int index = _function->maxNumberOfArguments - argument;
        return Pointer(Assembler::LocalsRegister, sizeof(QV4::Value) * (-index)
                                                      - sizeof(void*) // size of ebp
                                                  - sizeof(void*) * Assembler::calleeSavedRegisterCount
                       );
    }
    Pointer baseAddressForCallArguments()
    {
        return argumentAddressForCall(0);
    }

    QV4::String *identifier(const QString &s);
    virtual void constructActivationProperty(V4IR::Name *func, V4IR::ExprList *args, V4IR::Temp *result);
    virtual void constructProperty(V4IR::Temp *base, const QString &name, V4IR::ExprList *args, V4IR::Temp *result);
    virtual void constructValue(V4IR::Temp *value, V4IR::ExprList *args, V4IR::Temp *result);

    virtual void visitJump(V4IR::Jump *);
    virtual void visitCJump(V4IR::CJump *);
    virtual void visitRet(V4IR::Ret *);
    virtual void visitTry(V4IR::Try *);

private:
    #define isel_stringIfyx(s) #s
    #define isel_stringIfy(s) isel_stringIfyx(s)

    #define generateFunctionCall(t, function, ...) \
        _as->generateFunctionCallImp(t, isel_stringIfy(function), function, __VA_ARGS__)

    int prepareVariableArguments(V4IR::ExprList* args);

    typedef void (*ActivationMethod)(QV4::ExecutionContext *, QV4::Value *result, QV4::String *name, QV4::Value *args, int argc);
    void callRuntimeMethodImp(V4IR::Temp *result, const char* name, ActivationMethod method, V4IR::Expr *base, V4IR::ExprList *args);
#define callRuntimeMethod(result, function, ...) \
    callRuntimeMethodImp(result, isel_stringIfy(function), function, __VA_ARGS__)

    uint addLookup(QV4::String *name);
    uint addSetterLookup(QV4::String *name);
    uint addGlobalLookup(QV4::String *name);

    template <typename Arg1, typename Arg2>
    void generateLookupCall(uint index, uint getterSetterOffset, Arg1 arg1, Arg2 arg2)
    {
        _as->loadPtr(Assembler::Address(Assembler::ContextRegister, offsetof(QV4::ExecutionContext, lookups)),
                     Assembler::ReturnValueRegister);

        Assembler::Pointer lookupAddr(Assembler::ReturnValueRegister, index * sizeof(QV4::Lookup));

        Assembler::Address getterSetter = lookupAddr;
        getterSetter.offset += getterSetterOffset;

         _as->generateFunctionCallImp(Assembler::Void, "lookup getter/setter", getterSetter, lookupAddr, arg1, arg2);
    }

    template <typename Arg1>
    void generateLookupCall(uint index, uint getterSetterOffset, Arg1 arg1)
    {
        generateLookupCall(index, getterSetterOffset, arg1, Assembler::VoidType());
    }

    V4IR::BasicBlock *_block;
    V4IR::Function* _function;
    QV4::Function* _vmFunction;
    QVector<QV4::Lookup> _lookups;
    Assembler* _as;
    QSet<V4IR::BasicBlock*> _reentryBlocks;
    int _locals;
};

class Q_QML_EXPORT ISelFactory: public EvalISelFactory
{
public:
    virtual ~ISelFactory() {}
    virtual EvalInstructionSelection *create(QV4::ExecutionEngine *engine, V4IR::Module *module)
    { return new InstructionSelection(engine, module); }
    virtual bool jitCompileRegexps() const
    { return true; }
};

} // end of namespace MASM
} // end of namespace QQmlJS

#endif // QV4ISEL_MASM_P_H