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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/StoreFieldNode.java @ 19410:61d3cb8e1280

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Add generic parameter to NodeClass. Change Graph#getNodes(Class) to Graph#getNodes(NodeClass).
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 16 Feb 2015 17:47:43 +0100
parents 7e2c87dae93e
children 8fc336a04d77
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1 /*
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2 * Copyright (c) 2009, 2015, 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.java;
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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.nodeinfo.*;
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29 import com.oracle.graal.nodes.*;
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30 import com.oracle.graal.nodes.spi.*;
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31 import com.oracle.graal.nodes.virtual.*;
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32
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33 /**
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34 * The {@code StoreFieldNode} represents a write to a static or instance field.
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35 */
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36 @NodeInfo(nameTemplate = "StoreField#{p#field/s}")
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37 public final class StoreFieldNode extends AccessFieldNode implements StateSplit, VirtualizableRoot {
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38 public static final NodeClass<StoreFieldNode> TYPE = NodeClass.get(StoreFieldNode.class);
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39
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40 @Input ValueNode value;
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41 @OptionalInput(InputType.State) FrameState stateAfter;
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42
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43 public FrameState stateAfter() {
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44 return stateAfter;
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45 }
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46
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47 public void setStateAfter(FrameState x) {
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48 assert x == null || x.isAlive() : "frame state must be in a graph";
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49 updateUsages(stateAfter, x);
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50 stateAfter = x;
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51 }
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52
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53 public boolean hasSideEffect() {
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54 return true;
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55 }
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56
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57 public ValueNode value() {
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58 return value;
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59 }
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60
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61 public StoreFieldNode(ValueNode object, ResolvedJavaField field, ValueNode value) {
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62 super(TYPE, StampFactory.forVoid(), object, field);
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63 this.value = value;
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64 }
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65
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66 public StoreFieldNode(ValueNode object, ResolvedJavaField field, ValueNode value, FrameState stateAfter) {
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67 super(TYPE, StampFactory.forVoid(), object, field);
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68 this.value = value;
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69 this.stateAfter = stateAfter;
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70 }
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71
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72 @Override
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73 public void virtualize(VirtualizerTool tool) {
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74 State state = tool.getObjectState(object());
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75 if (state != null && state.getState() == EscapeState.Virtual) {
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76 int fieldIndex = ((VirtualInstanceNode) state.getVirtualObject()).fieldIndex(field());
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77 if (fieldIndex != -1) {
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78 tool.setVirtualEntry(state, fieldIndex, value(), false);
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79 tool.delete();
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80 }
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81 }
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82 }
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84 public FrameState getState() {
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85 return stateAfter;
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86 }
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87 }