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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4ISEL_MOTH_P_H
#define QV4ISEL_MOTH_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qv4global_p.h>
#include <private/qv4isel_p.h>
#include <private/qv4isel_util_p.h>
#include <private/qv4util_p.h>
#include <private/qv4jsir_p.h>
#include <private/qv4value_p.h>
#include "qv4instr_moth_p.h"
QT_REQUIRE_CONFIG(qml_interpreter);
QT_BEGIN_NAMESPACE
namespace QV4 {
namespace Moth {
struct CompilationUnit : public QV4::CompiledData::CompilationUnit
{
virtual ~CompilationUnit();
void linkBackendToEngine(QV4::ExecutionEngine *engine) Q_DECL_OVERRIDE;
void prepareCodeOffsetsForDiskStorage(CompiledData::Unit *unit) Q_DECL_OVERRIDE;
bool saveCodeToDisk(QIODevice *device, const CompiledData::Unit *unit, QString *errorString) Q_DECL_OVERRIDE;
bool memoryMapCode(QString *errorString) Q_DECL_OVERRIDE;
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, EvalISelFactory *iselFactory);
~InstructionSelection();
void run(int functionIndex) override;
protected:
QQmlRefPointer<CompiledData::CompilationUnit> backendCompileStep() override;
void visitJump(IR::Jump *) override;
void visitCJump(IR::CJump *) override;
void visitRet(IR::Ret *) override;
void callBuiltinInvalid(IR::Name *func, IR::ExprList *args, IR::Expr *result) override;
void callBuiltinTypeofQmlContextProperty(IR::Expr *base, IR::Member::MemberKind kind, int propertyIndex, IR::Expr *result) override;
void callBuiltinTypeofMember(IR::Expr *base, const QString &name, IR::Expr *result) override;
void callBuiltinTypeofSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result) override;
void callBuiltinTypeofName(const QString &name, IR::Expr *result) override;
void callBuiltinTypeofValue(IR::Expr *value, IR::Expr *result) override;
void callBuiltinDeleteMember(IR::Expr *base, const QString &name, IR::Expr *result) override;
void callBuiltinDeleteSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result) override;
void callBuiltinDeleteName(const QString &name, IR::Expr *result) override;
void callBuiltinDeleteValue(IR::Expr *result) override;
void callBuiltinThrow(IR::Expr *arg) override;
void callBuiltinReThrow() override;
void callBuiltinUnwindException(IR::Expr *) override;
void callBuiltinPushCatchScope(const QString &exceptionName) override;
void callBuiltinForeachIteratorObject(IR::Expr *arg, IR::Expr *result) override;
void callBuiltinForeachNextPropertyname(IR::Expr *arg, IR::Expr *result) override;
void callBuiltinPushWithScope(IR::Expr *arg) override;
void callBuiltinPopScope() override;
void callBuiltinDeclareVar(bool deletable, const QString &name) override;
void callBuiltinDefineArray(IR::Expr *result, IR::ExprList *args) override;
void callBuiltinDefineObjectLiteral(IR::Expr *result, int keyValuePairCount, IR::ExprList *keyValuePairs, IR::ExprList *arrayEntries, bool needSparseArray) override;
void callBuiltinSetupArgumentObject(IR::Expr *result) override;
void callBuiltinConvertThisToObject() override;
void callValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result) override;
void callQmlContextProperty(IR::Expr *base, IR::Member::MemberKind kind, int propertyIndex, IR::ExprList *args, IR::Expr *result) override;
void callProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr *result) override;
void callSubscript(IR::Expr *base, IR::Expr *index, IR::ExprList *args, IR::Expr *result) override;
void convertType(IR::Expr *source, IR::Expr *target) override;
void constructActivationProperty(IR::Name *func, IR::ExprList *args, IR::Expr *result) override;
void constructProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr *result) override;
void constructValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result) override;
void loadThisObject(IR::Expr *e) override;
void loadQmlContext(IR::Expr *e) override;
void loadQmlImportedScripts(IR::Expr *e) override;
void loadQmlSingleton(const QString &name, IR::Expr *e) override;
void loadConst(IR::Const *sourceConst, IR::Expr *e) override;
void loadString(const QString &str, IR::Expr *target) override;
void loadRegexp(IR::RegExp *sourceRegexp, IR::Expr *target) override;
void getActivationProperty(const IR::Name *name, IR::Expr *target) override;
void setActivationProperty(IR::Expr *source, const QString &targetName) override;
void initClosure(IR::Closure *closure, IR::Expr *target) override;
void getProperty(IR::Expr *base, const QString &name, IR::Expr *target) override;
void setProperty(IR::Expr *source, IR::Expr *targetBase, const QString &targetName) override;
void setQmlContextProperty(IR::Expr *source, IR::Expr *targetBase, IR::Member::MemberKind kind, int propertyIndex) override;
void setQObjectProperty(IR::Expr *source, IR::Expr *targetBase, int propertyIndex) override;
void getQmlContextProperty(IR::Expr *source, IR::Member::MemberKind kind, int index, bool captureRequired, IR::Expr *target) override;
void getQObjectProperty(IR::Expr *base, int propertyIndex, bool captureRequired, bool isSingleton, int attachedPropertiesId, IR::Expr *target) override;
void getElement(IR::Expr *base, IR::Expr *index, IR::Expr *target) override;
void setElement(IR::Expr *source, IR::Expr *targetBase, IR::Expr *targetIndex) override;
void copyValue(IR::Expr *source, IR::Expr *target) override;
void swapValues(IR::Expr *source, IR::Expr *target) override;
void unop(IR::AluOp oper, IR::Expr *source, IR::Expr *target) override;
void binop(IR::AluOp oper, IR::Expr *leftSource, IR::Expr *rightSource, IR::Expr *target) override;
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);
inline void addDebugInstruction();
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;
BitVector _removableJumps;
IR::Stmt *_currentStatement;
QScopedPointer<CompilationUnit> compilationUnit;
QHash<IR::Function *, QByteArray> codeRefs;
};
class Q_QML_EXPORT ISelFactory: public EvalISelFactory
{
public:
ISelFactory() : EvalISelFactory(QStringLiteral("moth")) {}
virtual ~ISelFactory() {}
EvalInstructionSelection *create(QQmlEnginePrivate *qmlEngine, QV4::ExecutableAllocator *execAllocator, IR::Module *module, QV4::Compiler::JSUnitGenerator *jsGenerator) Q_DECL_OVERRIDE Q_DECL_FINAL
{ return new InstructionSelection(qmlEngine, execAllocator, module, jsGenerator, this); }
bool jitCompileRegexps() const Q_DECL_OVERRIDE Q_DECL_FINAL
{ return false; }
QQmlRefPointer<QV4::CompiledData::CompilationUnit> createUnitForLoading() Q_DECL_OVERRIDE;
};
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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