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Diffstat (limited to 'src/qml/jit/qv4ir.cpp')
| -rw-r--r-- | src/qml/jit/qv4ir.cpp | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/src/qml/jit/qv4ir.cpp b/src/qml/jit/qv4ir.cpp deleted file mode 100644 index cb3eeeec60..0000000000 --- a/src/qml/jit/qv4ir.cpp +++ /dev/null @@ -1,382 +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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <private/qqmlglobal_p.h> -#include "qv4ir_p.h" -#include "qv4node_p.h" -#include "qv4function_p.h" -#include <qv4graph_p.h> -#include "qv4stackframe_p.h" -#include "qv4operation_p.h" -#include "qv4util_p.h" - -#include <QtCore/qloggingcategory.h> -#include <QtCore/qjsonobject.h> -#include <QtCore/qjsonarray.h> -#include <QtCore/qfile.h> - -QT_BEGIN_NAMESPACE -namespace QV4 { -namespace IR { - -Q_LOGGING_CATEGORY(lcJsonIR, "qt.v4.ir.json"); -Q_LOGGING_CATEGORY(lcDotIR, "qt.v4.ir.dot"); -Q_LOGGING_CATEGORY(lcVerify, "qt.v4.ir.verify"); - -Function::Function(QV4::Function *qv4Function) - : qv4Function(qv4Function) - , m_graph(Graph::create(this)) - , m_dumper(nullptr) - , m_nodeInfo(128, nullptr) -{ -} - -Function::~Function() -{ - delete m_dumper; -} - -QString Function::name() const -{ - QString name; - if (auto n = v4Function()->name()) - name = n->toQString(); - if (name.isEmpty()) - name = QString::asprintf("%p", v4Function()); - auto loc = v4Function()->sourceLocation(); - return name + QStringLiteral(" (%1:%2:%3)").arg(loc.sourceFile, QString::number(loc.line), - QString::number(loc.column)); -} - -void Function::dump(const QString &description) const -{ - Dumper::dump(this, description); -} - -void Function::dump() const -{ - dump(QStringLiteral("Debug:")); -} - -Dumper *Function::dumper() const -{ - if (!m_dumper) - m_dumper = new Dumper(this); - return m_dumper; -} - -Function::StringId Function::addString(const QString &s) -{ - m_stringPool.push_back(s); - return m_stringPool.size() - 1; -} - -NodeInfo *Function::nodeInfo(Node *n, bool createIfNecessary) const -{ - if (n->id() >= m_nodeInfo.size()) - m_nodeInfo.resize(n->id() * 2, nullptr); - - NodeInfo *&info = m_nodeInfo[n->id()]; - if (info == nullptr && createIfNecessary) { - info = m_pool.New<NodeInfo>(); - info->setType(n->operation()->type()); - } - return info; -} - -void Function::copyBytecodeOffsets(Node *from, Node *to) -{ - auto toInfo = nodeInfo(to); - if (auto fromInfo = nodeInfo(from)) { - toInfo->setBytecodeOffsets(fromInfo->currentInstructionOffset(), - fromInfo->nextInstructionOffset()); - } -} - -Dumper::Dumper(const Function *f) -{ - if (!f) - return; -} - -void Dumper::dump(const Function *f, const QString &description) -{ - if (false && lcJsonIR().isDebugEnabled()) { - Dumper *dumper = f->dumper(); - - qCDebug(lcJsonIR).noquote().nospace() << description + QLatin1String(":\n"); - for (const auto &line : dumper->dump(f).split('\n')) - qCDebug(lcJsonIR).noquote().nospace() << line; - } - - if (lcDotIR().isDebugEnabled()) - dot(f, description); -} - -QByteArray Dumper::dump(const Function *f) -{ - QJsonObject fo; - - { - QString name; - if (auto n = f->v4Function()->name()) - name = n->toQString(); - fo[QLatin1String("_searchKey")] = QStringLiteral("function %1").arg(name); - if (name.isEmpty()) - name = QString::asprintf("%p", f->v4Function()); - fo[QLatin1String("name")] = name; - } - - auto loc = f->v4Function()->sourceLocation(); - fo[QLatin1String("source")] = loc.sourceFile; - fo[QLatin1String("line")] = loc.line; - fo[QLatin1String("column")] = loc.column; - - { - QJsonArray gn; - QJsonArray ge; - NodeCollector nodes(f->graph(), /*collectUses =*/ true); - nodes.sortById(); - for (Node *n : nodes.reachable()) { - gn.append(dump(n, f)); - int inputIndex = 0; - for (Node *input : n->inputs()) { - QJsonObject edge; - edge[QLatin1String("from")] = int(input->id()); - edge[QLatin1String("to")] = int(n->id()); - edge[QLatin1String("index")] = inputIndex; - if (inputIndex < n->operation()->valueInputCount()) { - edge[QLatin1String("type")] = QLatin1String("value"); - } else if (inputIndex < n->operation()->valueInputCount() - + n->operation()->effectInputCount()) { - edge[QLatin1String("type")] = QLatin1String("effect"); - } else { - edge[QLatin1String("type")] = QLatin1String("control"); - } - Q_ASSERT(inputIndex < n->operation()->valueInputCount() - + n->operation()->effectInputCount() - + n->operation()->controlInputCount()); - ge.append(edge); - ++inputIndex; - } - } - QJsonObject g; - g[QLatin1String("nodes")] = gn; - g[QLatin1String("edges")] = ge; - fo[QLatin1String("graph")] = g; - } - - m_doc.setObject(fo); - return m_doc.toJson(QJsonDocument::Indented); -} - -QJsonValue toJSonValue(QV4::Value v) -{ - switch (v.type()) { - case QV4::Value::Undefined_Type: return QJsonValue(QJsonValue::Undefined); - case QV4::Value::Null_Type: return QJsonValue(QJsonValue::Null); - case QV4::Value::Boolean_Type: return QJsonValue(v.booleanValue()); - case QV4::Value::Integer_Type: return QJsonValue(v.int_32()); - case QV4::Value::Managed_Type: - if (String *s = v.stringValue()) - return QJsonValue(s->toQString()); - else - return QJsonValue(QLatin1String("<managed>")); - default: return QJsonValue(v.doubleValue()); - } -} - -QJsonValue Dumper::dump(const Node * const node, const Function *f) -{ - QJsonObject n; - n[QLatin1String("id")] = int(node->id()); - n[QLatin1String("kind")] = node->operation()->debugString(); - switch (node->operation()->kind()) { - case Meta::Parameter: { - auto info = ParameterPayload::get(*node->operation()); - n[QLatin1String("name")] = f->string(info->stringId()); - n[QLatin1String("index")] = int(info->parameterIndex()); - break; - } - case Meta::Constant: { - auto info = ConstantPayload::get(*node->operation()); - n[QLatin1String("value")] = toJSonValue(info->value()); - break; - } - default: - break; - } - return n; -} - -void Dumper::dot(const Function *f, const QString &description) -{ - static const bool skipFramestate = qEnvironmentVariableIsSet("QV4_JIT_DOT_SKIP_FRAMESTATE"); - - auto node = [](Node *n) { - return QStringLiteral("n%1[label=\"%1: %2%3\"];\n").arg(QString::number(n->id()), - n->operation()->debugString(), - n->isDead() ? QStringLiteral(" (dead)") - : QString()); - }; - - Graph *g = f->graph(); - QString out; - out += QLatin1Char('\n'); - out += QStringLiteral("digraph{root=\"n%1\" label=\"%2\";" - "node[shape=rect];" - "edge[dir=back fontsize=10];\n") - .arg(g->startNode()->id()) - .arg(description); - out += node(g->startNode()); - const bool dumpUses = false; // set to true to see all nodes - NodeCollector nodes(g, dumpUses, skipFramestate); - for (Node *n : nodes.reachable()) { - if (n == g->startNode()) - continue; - - out += node(n); - - unsigned inputIndex = 0; - for (Node *input : n->inputs()) { - if (input == nullptr) - continue; - out += QStringLiteral("n%2->n%1[style=").arg(QString::number(n->id()), - QString::number(input->id())); - if (inputIndex < n->operation()->valueInputCount() || - inputIndex == n->operation()->indexOfFrameStateInput()) { - out += QStringLiteral("solid headlabel=\"%1\"").arg(inputIndex); - } else if (inputIndex < unsigned(n->operation()->valueInputCount() - + n->operation()->effectInputCount())) { - out += QStringLiteral("dotted headlabel=\"%1\"").arg(inputIndex); - } else { - out += QStringLiteral("dashed headlabel=\"%1\"").arg(inputIndex); - } - out += QStringLiteral("];\n"); - ++inputIndex; - } - } - out += QStringLiteral("}\n"); - qCDebug(lcDotIR).nospace().noquote() << out; - - QFile of(description + QStringLiteral(".dot")); - of.open(QIODevice::WriteOnly); - of.write(out.toUtf8()); - of.close(); -} - -void Function::verify() const -{ -#ifndef QT_NO_DEBUG - unsigned problemsFound = 0; - - auto verifyNodeAgainstOperation = [&problemsFound](const Node *n) { - const Operation *op = n->operation(); - if (op->totalInputCount() != n->inputCount()) { - ++problemsFound; - qCDebug(lcVerify()) << "Node" << n->id() << "has" << n->inputCount() - << "inputs, but it's operation" << op->debugString() - << "requires" << op->totalInputCount() << "inputs"; - } - - if (n->opcode() == Meta::Phi || n->opcode() == Meta::EffectPhi) { - if (n->controlInput()->opcode() != Meta::Region) { - ++problemsFound; - qCDebug(lcVerify()) << "Control input of phi node" << n->id() << "is not a region"; - } - if (n->controlInput()->inputCount() + 1 != n->inputCount()) { - ++problemsFound; - qCDebug(lcVerify()) << "Control input of phi node" << n->id() - << "has" << n->controlInput()->inputCount() - << "inputs while phi node has" << n->inputCount() - << "inputs"; - } - } - - //### todo: verify outputs: value outputs are allowed to be unused, but the effect and - // control outputs have to be linked up, except: - //### todo: verify if no use is a nullptr, except for operations that can throw, where the - // last one is allowed to be a nullptr when an unwind handler is missing. - }; - - NodeWorkList todo(graph()); - todo.enqueue(graph()->endNode()); - while (Node *n = todo.dequeueNextNodeForVisiting()) { - todo.enqueueAllInputs(n); - todo.enqueueAllUses(n); - - verifyNodeAgainstOperation(n); - } - //### TODO: - if (problemsFound != 0) { - dump(QStringLiteral("Problematic graph")); - qFatal("Found %u problems during graph verification!", problemsFound); - } -#endif // QT_NO_xDEBUG -} - -QString Type::debugString() const -{ - if (isNone()) - return QStringLiteral("none"); - if (isInvalid()) - return QStringLiteral("invalid"); - - QStringList s; - if (m_t & Bool) - s += QStringLiteral("boolean"); - if (m_t & Int32) - s += QStringLiteral("int32"); - if (m_t & Double) - s += QStringLiteral("double"); - if (m_t & Undefined) - s += QStringLiteral("undefined"); - if (m_t & Null) - s += QStringLiteral("null"); - if (m_t & Empty) - s += QStringLiteral("empty"); - if (m_t & RawPointer) - s += QStringLiteral("raw pointer"); - - return s.join(QLatin1String(" ")); -} - -} // IR namespace -} // QV4 namespace -QT_END_NAMESPACE |