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/****************************************************************************
**
** Copyright (C) 2014 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.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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/qv4value_p.h>
#include "qv4instr_moth_p.h"
QT_BEGIN_NAMESPACE
namespace QV4 {
namespace Moth {
struct CompilationUnit : public QV4::CompiledData::CompilationUnit
{
virtual ~CompilationUnit();
virtual void linkBackendToEngine(QV4::ExecutionEngine *engine);
QVector<QByteArray> codeRefs;
};
class Q_QML_EXPORT InstructionSelection:
public IR::IRDecoder,
public EvalInstructionSelection
{
public:
InstructionSelection(QQmlEnginePrivate *qmlEngine, QV4::ExecutableAllocator *execAllocator, IR::Module *module, QV4::Compiler::JSUnitGenerator *jsGenerator);
~InstructionSelection();
virtual void run(int functionIndex);
protected:
virtual QV4::CompiledData::CompilationUnit *backendCompileStep();
virtual void visitJump(IR::Jump *);
virtual void visitCJump(IR::CJump *);
virtual void visitRet(IR::Ret *);
virtual void callBuiltinInvalid(IR::Name *func, IR::ExprList *args, IR::Expr *result);
virtual void callBuiltinTypeofMember(IR::Expr *base, const QString &name, IR::Expr *result);
virtual void callBuiltinTypeofSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result);
virtual void callBuiltinTypeofName(const QString &name, IR::Expr *result);
virtual void callBuiltinTypeofValue(IR::Expr *value, IR::Expr *result);
virtual void callBuiltinDeleteMember(IR::Expr *base, const QString &name, IR::Expr *result);
virtual void callBuiltinDeleteSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result);
virtual void callBuiltinDeleteName(const QString &name, IR::Expr *result);
virtual void callBuiltinDeleteValue(IR::Expr *result);
virtual void callBuiltinThrow(IR::Expr *arg);
virtual void callBuiltinReThrow();
virtual void callBuiltinUnwindException(IR::Expr *);
virtual void callBuiltinPushCatchScope(const QString &exceptionName);
virtual void callBuiltinForeachIteratorObject(IR::Expr *arg, IR::Expr *result);
virtual void callBuiltinForeachNextPropertyname(IR::Expr *arg, IR::Expr *result);
virtual void callBuiltinPushWithScope(IR::Expr *arg);
virtual void callBuiltinPopScope();
virtual void callBuiltinDeclareVar(bool deletable, const QString &name);
virtual void callBuiltinDefineArray(IR::Expr *result, IR::ExprList *args);
virtual void callBuiltinDefineObjectLiteral(IR::Expr *result, int keyValuePairCount, IR::ExprList *keyValuePairs, IR::ExprList *arrayEntries, bool needSparseArray);
virtual void callBuiltinSetupArgumentObject(IR::Expr *result);
virtual void callBuiltinConvertThisToObject();
virtual void callValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result);
virtual void callProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr *result);
virtual void callSubscript(IR::Expr *base, IR::Expr *index, IR::ExprList *args, IR::Expr *result);
virtual void convertType(IR::Expr *source, IR::Expr *target);
virtual void constructActivationProperty(IR::Name *func, IR::ExprList *args, IR::Expr *result);
virtual void constructProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr *result);
virtual void constructValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result);
virtual void loadThisObject(IR::Expr *e);
virtual void loadQmlIdArray(IR::Expr *e);
virtual void loadQmlImportedScripts(IR::Expr *e);
virtual void loadQmlContextObject(IR::Expr *e);
virtual void loadQmlScopeObject(IR::Expr *e);
virtual void loadQmlSingleton(const QString &name, IR::Expr *e);
virtual void loadConst(IR::Const *sourceConst, IR::Expr *e);
virtual void loadString(const QString &str, IR::Expr *target);
virtual void loadRegexp(IR::RegExp *sourceRegexp, IR::Expr *target);
virtual void getActivationProperty(const IR::Name *name, IR::Expr *target);
virtual void setActivationProperty(IR::Expr *source, const QString &targetName);
virtual void initClosure(IR::Closure *closure, IR::Expr *target);
virtual void getProperty(IR::Expr *base, const QString &name, IR::Expr *target);
virtual void setProperty(IR::Expr *source, IR::Expr *targetBase, const QString &targetName);
virtual void setQObjectProperty(IR::Expr *source, IR::Expr *targetBase, int propertyIndex);
virtual void getQObjectProperty(IR::Expr *base, int propertyIndex, bool captureRequired, bool isSingleton, int attachedPropertiesId, IR::Expr *target);
virtual void getElement(IR::Expr *base, IR::Expr *index, IR::Expr *target);
virtual void setElement(IR::Expr *source, IR::Expr *targetBase, IR::Expr *targetIndex);
virtual void copyValue(IR::Expr *source, IR::Expr *target);
virtual void swapValues(IR::Expr *source, IR::Expr *target);
virtual void unop(IR::AluOp oper, IR::Expr *source, IR::Expr *target);
virtual void binop(IR::AluOp oper, IR::Expr *leftSource, IR::Expr *rightSource, IR::Expr *target);
private:
Param binopHelper(IR::AluOp oper, IR::Expr *leftSource, IR::Expr *rightSource, IR::Expr *target);
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();
};
Param getParam(IR::Expr *e);
Param getResultParam(IR::Expr *result)
{
if (result)
return getParam(result);
else
return Param::createTemp(scratchTempIndex());
}
void simpleMove(IR::Move *);
void prepareCallArgs(IR::ExprList *, quint32 &, quint32 * = 0);
int scratchTempIndex() const { return _function->tempCount; }
int callDataStart() const { return scratchTempIndex() + 1; }
int outgoingArgumentTempStart() const { return callDataStart() + qOffsetOf(QV4::CallData, args)/sizeof(QV4::Value); }
int frameSize() const { return outgoingArgumentTempStart() + _function->maxNumberOfArguments; }
template <int Instr>
inline ptrdiff_t addInstruction(const InstrData<Instr> &data);
ptrdiff_t addInstructionHelper(Instr::Type type, Instr &instr);
void patchJumpAddresses();
QByteArray squeezeCode() const;
QQmlEnginePrivate *qmlEngine;
bool blockNeedsDebugInstruction;
uint currentLine;
IR::BasicBlock *_block;
IR::BasicBlock *_nextBlock;
QHash<IR::BasicBlock *, QVector<ptrdiff_t> > _patches;
QHash<IR::BasicBlock *, ptrdiff_t> _addrs;
uchar *_codeStart;
uchar *_codeNext;
uchar *_codeEnd;
QSet<IR::Jump *> _removableJumps;
IR::Stmt *_currentStatement;
QScopedPointer<CompilationUnit> compilationUnit;
QHash<IR::Function *, QByteArray> codeRefs;
};
class Q_QML_EXPORT ISelFactory: public EvalISelFactory
{
public:
virtual ~ISelFactory() {}
virtual EvalInstructionSelection *create(QQmlEnginePrivate *qmlEngine, QV4::ExecutableAllocator *execAllocator, IR::Module *module, QV4::Compiler::JSUnitGenerator *jsGenerator)
{ return new InstructionSelection(qmlEngine, execAllocator, module, jsGenerator); }
virtual bool jitCompileRegexps() const
{ return false; }
};
template<int InstrT>
ptrdiff_t InstructionSelection::addInstruction(const InstrData<InstrT> &data)
{
Instr genericInstr;
InstrMeta<InstrT>::setDataNoCommon(genericInstr, data);
return addInstructionHelper(static_cast<Instr::Type>(InstrT), genericInstr);
}
} // namespace Moth
} // namespace QV4
QT_END_NAMESPACE
#endif // QV4ISEL_MOTH_P_H
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