| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
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| 3 | |
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| 4 | #ifndef QQMLJSOPTIMIZATIONS_P_H |
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| 5 | #define QQMLJSOPTIMIZATIONS_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | |
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| 17 | #include <private/qqmljscompilepass_p.h> |
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| 18 | |
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| 19 | QT_BEGIN_NAMESPACE |
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| 20 | |
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| 21 | class Q_QMLCOMPILER_EXPORT QQmlJSOptimizations : public QQmlJSCompilePass |
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| 22 | { |
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| 23 | public: |
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| 24 | using Conversions = QSet<int>; |
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| 25 | |
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| 26 | QQmlJSOptimizations(const QV4::Compiler::JSUnitGenerator *unitGenerator, |
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| 27 | const QQmlJSTypeResolver *typeResolver, QQmlJSLogger *logger, |
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| 28 | BasicBlocks basicBlocks, InstructionAnnotations annotations, |
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| 29 | QList<ObjectOrArrayDefinition> objectAndArrayDefinitions) |
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| 30 | : QQmlJSCompilePass(unitGenerator, typeResolver, logger, basicBlocks, annotations), |
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| 31 | m_objectAndArrayDefinitions{ objectAndArrayDefinitions } |
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| 32 | { |
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| 33 | } |
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| 34 | |
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| 35 | ~QQmlJSOptimizations() = default; |
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| 36 | |
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| 37 | BlocksAndAnnotations run(const Function *function, QQmlJS::DiagnosticMessage *error); |
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| 38 | |
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| 39 | private: |
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| 40 | struct RegisterAccess |
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| 41 | { |
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| 42 | QList<QQmlJSScope::ConstPtr> trackedTypes; |
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| 43 | QHash<int, QQmlJSScope::ConstPtr> typeReaders; |
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| 44 | QHash<int, Conversions> registerReadersAndConversions; |
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| 45 | int trackedRegister; |
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| 46 | }; |
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| 47 | |
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| 48 | QV4::Moth::ByteCodeHandler::Verdict startInstruction(QV4::Moth::Instr::Type) override |
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| 49 | { |
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| 50 | return ProcessInstruction; |
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| 51 | } |
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| 52 | void endInstruction(QV4::Moth::Instr::Type) override { } |
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| 53 | |
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| 54 | void populateBasicBlocks(); |
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| 55 | void populateReaderLocations(); |
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| 56 | void adjustTypes(); |
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| 57 | bool canMove(int instructionOffset, const RegisterAccess &access) const; |
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| 58 | |
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| 59 | QHash<int, RegisterAccess> m_readerLocations; |
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| 60 | QList<ObjectOrArrayDefinition> m_objectAndArrayDefinitions; |
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| 61 | }; |
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| 62 | |
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| 63 | QT_END_NAMESPACE |
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| 64 | |
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| 65 | #endif // QQMLJSOPTIMIZATIONS_P_H |
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| 66 | |
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