Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.graal.nodes/src/com/oracle/graal/nodes/extended/SafeReadNode.java @ 5060:4ed4295ce15f
Update import statements.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 19:11:12 +0100 |
parents | ed559a528128 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2011, 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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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.nodes.extended; |
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24 |
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25 import com.oracle.max.cri.ci.*; |
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26 import com.oracle.graal.cri.*; |
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27 import com.oracle.graal.nodes.*; |
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28 import com.oracle.graal.nodes.calc.*; |
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29 import com.oracle.graal.nodes.spi.*; |
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30 |
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31 |
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32 public class SafeReadNode extends SafeAccessNode implements Lowerable { |
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33 |
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34 public SafeReadNode(CiKind kind, ValueNode object, LocationNode location) { |
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35 super(kind, object, location); |
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36 assert object != null && location != null; |
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37 } |
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38 |
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39 @Override |
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40 public void lower(CiLoweringTool tool) { |
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41 StructuredGraph graph = (StructuredGraph) graph(); |
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42 GuardNode guard = (GuardNode) tool.createGuard(graph.unique(new NullCheckNode(object(), false))); |
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43 ReadNode read = graph.add(new ReadNode(kind(), object(), location())); |
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44 read.setGuard(guard); |
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45 |
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46 graph.replaceFixedWithFixed(this, read); |
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47 } |
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48 } |