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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/ConstantLocationNode.java @ 16237:0e5e4628fca7

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let AddLocationNode implement Canonicalizable.Binary
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 26 Jun 2014 09:53:59 +0200
parents e4d6c613d552
children 843e8efacd13
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1 /*
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2 * Copyright (c) 2011, 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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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.graal.api.meta.*;
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26 import com.oracle.graal.compiler.common.type.*;
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27 import com.oracle.graal.graph.*;
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28 import com.oracle.graal.lir.gen.*;
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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 * Location node that has a constant displacement. Can represent addresses of the form [base + disp]
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33 * where base is a node and disp is a constant.
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34 */
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35 @NodeInfo(nameTemplate = "Loc {p#locationIdentity/s}")
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36 public final class ConstantLocationNode extends LocationNode {
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37
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38 private final Kind valueKind;
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39 private final LocationIdentity locationIdentity;
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40 private final long displacement;
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41
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42 public static ConstantLocationNode create(LocationIdentity identity, Kind kind, long displacement, Graph graph) {
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43 return graph.unique(new ConstantLocationNode(identity, kind, displacement));
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44 }
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45
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46 public static ConstantLocationNode create(LocationIdentity identity, Kind kind, long displacement) {
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47 return new ConstantLocationNode(identity, kind, displacement);
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48 }
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49
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50 private ConstantLocationNode(LocationIdentity identity, Kind kind, long displacement) {
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51 super(StampFactory.forVoid());
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52 assert kind != Kind.Illegal && kind != Kind.Void;
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53 this.valueKind = kind;
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54 this.locationIdentity = identity;
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55 this.displacement = displacement;
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56 }
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57
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58 @Override
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59 public Kind getValueKind() {
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60 return valueKind;
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61 }
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63 @Override
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64 public LocationIdentity getLocationIdentity() {
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65 return locationIdentity;
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66 }
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67
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68 public long getDisplacement() {
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69 return displacement;
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70 }
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71
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72 @Override
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73 public Value generateAddress(NodeMappableLIRBuilder builder, LIRGeneratorTool gen, Value base) {
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74 return gen.emitAddress(base, getDisplacement(), Value.ILLEGAL, 0);
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75 }
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76 }