Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/ControlFlowException.java @ 15089:448338c9ce96
Truffle: Made inlining context-insensitive again to reduce complexity.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 14 Apr 2014 18:25:23 +0200 |
parents | 20e7727588e8 |
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Introduce ControlFlowException class in Truffle.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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1 /* |
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api.nodes; |
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26 |
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27 /** |
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28 * An exception thrown to model control flow in a Truffle interpreter. The Truffle optimizer has |
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29 * special knowledge of this exception class for performance optimizations. |
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30 */ |
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31 public class ControlFlowException extends RuntimeException { |
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32 |
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33 private static final long serialVersionUID = 3676602078425211386L; |
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34 |
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35 /** |
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36 * Creates an exception thrown to model control flow. |
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37 */ |
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38 public ControlFlowException() { |
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39 /* |
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40 * We use the super constructor that initializes the cause to null. Without that, the cause |
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41 * would be this exception itself. This helps escape analysis: it avoids the circle of an |
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42 * object pointing to itself. |
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43 */ |
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44 super((Throwable) null); |
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45 } |
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46 |
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47 /** |
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48 * For performance reasons, this exception does not record any stack trace information. |
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49 */ |
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50 @SuppressWarnings("sync-override") |
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51 @Override |
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52 public final Throwable fillInStackTrace() { |
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53 return null; |
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54 } |
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55 } |