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annotate graal/com.oracle.max.graal.nodes/src/com/oracle/max/graal/nodes/java/AccessIndexedNode.java @ 4309:4a609a685fa4

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changes to Node structures: * add more uses of higher-level graph manipulation methods * CanonicalierPhase cleanup * introduce FloatingReadNode, make ReadNode an ordinary fixed nodeToBlock * let Canonicalizable.canonical return ValueNode (instead of Node)
author Lukas Stadler <lukas.stadler@jku.at>
date Tue, 17 Jan 2012 19:45:39 +0100
parents aaac4894175c
children
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1 /*
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2 * Copyright (c) 2009, 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.max.graal.nodes.java;
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24
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25 import com.oracle.max.cri.ci.*;
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26 import com.oracle.max.graal.nodes.*;
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27 import com.oracle.max.graal.nodes.type.*;
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28
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29 /**
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30 * The {@code AccessIndexedNode} class is the base class of instructions that read or write
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31 * elements of an array.
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32 */
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33 public abstract class AccessIndexedNode extends AccessArrayNode {
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34
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35 @Input private ValueNode index;
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36 @Input private ValueNode length;
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37
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38 public ValueNode index() {
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39 return index;
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40 }
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41
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42 public ValueNode length() {
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43 return length;
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44 }
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45
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46 private final CiKind elementType;
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47
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48 /**
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49 * Create an new AccessIndexedNode.
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50 * @param kind the result kind of the access
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51 * @param array the instruction producing the array
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52 * @param index the instruction producing the index
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53 * @param length the instruction producing the length
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54 * @param elementKind the type of the elements of the array
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55 */
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56 protected AccessIndexedNode(Stamp stamp, ValueNode array, ValueNode index, ValueNode length, CiKind elementKind) {
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57 super(stamp, array);
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58 this.index = index;
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59 this.length = length;
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60 this.elementType = elementKind;
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61 }
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62
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63 /**
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64 * Gets the element type of the array.
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65 * @return the element type
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66 */
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67 public CiKind elementKind() {
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68 return elementType;
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69 }
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70 }