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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4ISEL_MOTH_P_H
#define QV4ISEL_MOTH_P_H
#include <private/qv4global_p.h>
#include <private/qv4isel_p.h>
#include <private/qv4isel_util_p.h>
#include <private/qv4jsir_p.h>
#include <private/qv4object_p.h>
#include "qv4instr_moth_p.h"
QT_BEGIN_NAMESPACE
namespace QQmlJS {
namespace Moth {
class StackSlotAllocator;
class Q_QML_EXPORT InstructionSelection:
public V4IR::IRDecoder,
public EvalInstructionSelection
{
public:
InstructionSelection(QV4::ExecutionEngine *engine, V4IR::Module *module);
~InstructionSelection();
virtual void run(QV4::Function *vmFunction, V4IR::Function *function);
protected:
virtual void visitJump(V4IR::Jump *);
virtual void visitCJump(V4IR::CJump *);
virtual void visitRet(V4IR::Ret *);
virtual void visitTry(V4IR::Try *);
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 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 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);
private:
struct Instruction {
#define MOTH_INSTR_DATA_TYPEDEF(I, FMT) typedef InstrData<Instr::I> I;
FOR_EACH_MOTH_INSTR(MOTH_INSTR_DATA_TYPEDEF)
#undef MOTH_INSTR_DATA_TYPEDEF
private:
Instruction();
};
Instr::Param getParam(V4IR::Expr *e);
Instr::Param getResultParam(V4IR::Temp *result)
{
if (result)
return getParam(result);
else
return Instr::Param::createTemp(scratchTempIndex());
}
void simpleMove(V4IR::Move *);
void prepareCallArgs(V4IR::ExprList *, quint32 &, quint32 &);
int outgoingArgumentTempStart() const { return _function->tempCount; }
int scratchTempIndex() const { return outgoingArgumentTempStart() + _function->maxNumberOfArguments; }
int frameSize() const { return scratchTempIndex() + 1; }
template <int Instr>
inline ptrdiff_t addInstruction(const InstrData<Instr> &data);
ptrdiff_t addInstructionHelper(Instr::Type type, Instr &instr);
void patchJumpAddresses();
uchar *squeezeCode() const;
QV4::String *identifier(const QString &s);
V4IR::Function *_function;
QV4::Function *_vmFunction;
V4IR::BasicBlock *_block;
V4IR::BasicBlock *_nextBlock;
QHash<V4IR::BasicBlock *, QVector<ptrdiff_t> > _patches;
QHash<V4IR::BasicBlock *, ptrdiff_t> _addrs;
uchar *_codeStart;
uchar *_codeNext;
uchar *_codeEnd;
StackSlotAllocator *_stackSlotAllocator;
V4IR::Stmt *_currentStatement;
};
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 false; }
};
template<int InstrT>
ptrdiff_t InstructionSelection::addInstruction(const InstrData<InstrT> &data)
{
Instr genericInstr;
InstrMeta<InstrT>::setData(genericInstr, data);
return addInstructionHelper(static_cast<Instr::Type>(InstrT), genericInstr);
}
} // namespace Moth
} // namespace QQmlJS
QT_END_NAMESPACE
#endif // QV4ISEL_MOTH_P_H
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