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Diffstat (limited to 'src/qml/jit/qv4schedulers_p.h')
| -rw-r--r-- | src/qml/jit/qv4schedulers_p.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/src/qml/jit/qv4schedulers_p.h b/src/qml/jit/qv4schedulers_p.h deleted file mode 100644 index f9179816df..0000000000 --- a/src/qml/jit/qv4schedulers_p.h +++ /dev/null @@ -1,162 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2018 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 QV4SCHEDULER_P_H -#define QV4SCHEDULER_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 "qv4global_p.h" -#include "qv4mi_p.h" -#include "qv4node_p.h" -#include "qv4domtree_p.h" -#include "qv4loopinfo_p.h" - -QT_REQUIRE_CONFIG(qml_tracing); - -QT_BEGIN_NAMESPACE - -namespace QV4 { -namespace IR { - -// Node scheduling "flattens" the graph into basic blocks with an ordered list of instructions. -// -// The various steps are mentioned in buildMIFunction, but the general idea is described in -// https://scholarship.rice.edu/bitstream/handle/1911/96451/TR95-252.pdf in chapter 6. -class NodeScheduler final -{ - Q_DISABLE_COPY_MOVE(NodeScheduler) - - class SchedulerData final { - Q_DISABLE_COPY_MOVE(SchedulerData) - public: - static SchedulerData *create(QQmlJS::MemoryPool *pool) - { return pool->New<SchedulerData>(); } - - SchedulerData() = default; - ~SchedulerData() = default; - - Node *node = nullptr; - MIBlock *minimumBlock = nullptr; - bool isFixed = false; - bool isScheduledInBlock = false; - static constexpr unsigned NotYetCalculated = std::numeric_limits<unsigned>::max(); - unsigned unscheduledUses = NotYetCalculated; - }; - -public: - NodeScheduler(Function *irFunction); - ~NodeScheduler() = default; - - MIFunction *buildMIFunction(); - -private: - std::vector<Node *> buildCFG(); - void scheduleEarly(const std::vector<Node *> &roots); - void scheduleEarly(Node *node, NodeWorkList &todo); - void propagateMinimumPosition(MIBlock *newMinimumPosition, Node *toNode, NodeWorkList &todo); - void scheduleLate(const std::vector<Node *> &roots); - void scheduleNodeLate(Node *node, NodeWorkList &todo); - void enqueueInputs(Node *node, NodeWorkList &todo); - Node *firstNotFixedUse(Node *node); - MIBlock *commonDominatorOfUses(Node *node); - void scheduleNodesInBlock(); - void scheduleNodesInBlock(MIInstr *&insertionPoint, MIBlock *b, NodeWorkList &todo); - void scheduleNodeInBlock(Node *node, MIInstr *&insertionPoint, MIBlock *b, NodeWorkList &todo); - void scheduleNodeNow(Node *node, MIInstr *&insertionPoint); - - void place(Node *node, MIBlock *b); - enum ScheduleOrNot { DontSchedule, Schedule }; - void placeFixed(Node *node, MIBlock *b, ScheduleOrNot markScheduled); - unsigned vregForNode(Node *node); - void addBlockStart(std::vector<Node *> &roots, Node *startNode, MIBlock *block); - void enqueueControlInputs(Node *node); - void handleStartNode(Node *startNode, MIBlock *startBlock); - MIInstr *createMIInstruction(Node *node); - MIOperand createMIOperand(Node *node); - SchedulerData *schedulerData(Node *n) - { - if (Q_UNLIKELY(m_schedulerData.size() <= n->id())) - m_schedulerData.resize(n->id() + 8); - SchedulerData *&sd = m_schedulerData[n->id()]; - if (Q_UNLIKELY(sd == nullptr)) { - sd = SchedulerData::create(m_irFunction->pool()); - sd->node = n; - } - return sd; - } - bool isLive(Node *n) const - { return m_live.isReachable(n->id()); } - bool canStartBlock(Node *node) const; - bool isControlFlowSplit(Node *node) const; - bool isBlockTerminator(Node *node) const; - MIBlock *getCommonDominator(MIBlock *one, MIBlock *other) const; - MIBlock *getHoistBlock(MIBlock *block) const; - - void showNodesByBlock(const QString &description) const; - - void dumpDotCFG() const; - -private: - Function *m_irFunction = nullptr; - MIFunction *m_miFunction = nullptr; - QScopedPointer<LoopInfo> m_loopInfo; - QScopedPointer<DominatorTree> m_domTree; - std::vector<int> m_dominatorDepthForBlock; - std::vector<unsigned> m_vregs; - std::vector<SchedulerData *> m_schedulerData; - NodeCollector m_live; - unsigned m_nextVReg = 0; -}; - -} // namespace IR -} // namespace QV4 - -QT_END_NAMESPACE - -#endif // QV4SCHEDULER_P_H |