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-rw-r--r--src/qml/compiler/qv4jsir_p.h52
1 files changed, 28 insertions, 24 deletions
diff --git a/src/qml/compiler/qv4jsir_p.h b/src/qml/compiler/qv4jsir_p.h
index 80869dd3e3..baa338ed52 100644
--- a/src/qml/compiler/qv4jsir_p.h
+++ b/src/qml/compiler/qv4jsir_p.h
@@ -1,31 +1,37 @@
/****************************************************************************
**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
+** 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.
**
-** $QT_BEGIN_LICENSE:LGPL21$
+** $QT_BEGIN_LICENSE:LGPL$
** 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 http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
+** 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 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.
+** 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.
**
-** As a special exception, The Qt Company gives you certain additional
-** rights. These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+** 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.
**
** $QT_END_LICENSE$
**
@@ -745,23 +751,21 @@ struct Ret: Stmt {
virtual Ret *asRet() { return this; }
};
+// Phi nodes can only occur at the start of a basic block. If there are any, they need to be
+// subsequent to eachother, and the first phi node should be the first statement in the basic-block.
+// A number of loops rely on this behavior, so they don't need to walk through the whole list
+// of instructions in a basic-block (e.g. the calls to destroyData in BasicBlock::~BasicBlock).
struct Phi: Stmt {
Temp *targetTemp;
- struct Data {
- QVector<Expr *> incoming; // used by Phi nodes
- };
-
- Data *d;
+ VarLengthArray<Expr *, 4> incoming;
- Phi(int id): Stmt(id), d(0) {}
+ Phi(int id): Stmt(id) {}
virtual void accept(StmtVisitor *v) { v->visitPhi(this); }
virtual Phi *asPhi() { return this; }
- void destroyData() {
- delete d;
- d = 0;
- }
+ void destroyData()
+ { incoming.~VarLengthArray(); }
};
struct Q_QML_PRIVATE_EXPORT Module {