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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java @ 6716:536dbb4dd212

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removed null check from UnsafeLoadNode, UnsafeStoreNode, ReadNode and WriteNode as it violates the sun.misc.Unsafe API
author Doug Simon <doug.simon@oracle.com>
date Tue, 13 Nov 2012 14:48:42 +0100
parents feb579677b58
children ccade022ec83
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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.graal.api.meta.*;
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26 import com.oracle.graal.nodes.*;
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27 import com.oracle.graal.nodes.spi.*;
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28 import com.oracle.graal.nodes.type.*;
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30 /**
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31 * Store of a value at a location specified as an offset relative to an object.
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536dbb4dd212 removed null check from UnsafeLoadNode, UnsafeStoreNode, ReadNode and WriteNode as it violates the sun.misc.Unsafe API
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32 * No null check is performed before the store.
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33 */
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34 public class UnsafeStoreNode extends FixedWithNextNode implements StateSplit, Lowerable {
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35
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36 @Input private ValueNode object;
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37 @Input private ValueNode offset;
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38 @Input private ValueNode value;
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39 private final int displacement;
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40 private final Kind storeKind;
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41 @Input(notDataflow = true) private 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 UnsafeStoreNode(ValueNode object, int displacement, ValueNode offset, ValueNode value, Kind kind) {
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58 super(StampFactory.forVoid());
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59 assert kind != Kind.Void && kind != Kind.Illegal;
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60 this.object = object;
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61 this.displacement = displacement;
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62 this.offset = offset;
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63 this.value = value;
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64 this.storeKind = kind;
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65 }
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66
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67 public ValueNode object() {
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68 return object;
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69 }
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70
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71 public int displacement() {
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72 return displacement;
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73 }
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74
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75 public ValueNode offset() {
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76 return offset;
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77 }
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78
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79 public ValueNode value() {
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80 return value;
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81 }
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82
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83 public Kind storeKind() {
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84 return storeKind;
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85 }
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86
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87 @Override
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88 public boolean verify() {
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89 assertTrue(storeKind != null, "UnsafeStoreNode must have a store kind");
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90 assertTrue(object != null, "UnsafeStoreNode should have an object");
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91 return super.verify();
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92 }
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93
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94 @Override
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95 public void lower(LoweringTool tool) {
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96 tool.getRuntime().lower(this, tool);
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97 }
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98
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99 // specialized on value type until boxing/unboxing is sorted out in intrinsification
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100 @NodeIntrinsic
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101 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, Object value, @ConstantNodeParameter Kind kind);
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102
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103 @NodeIntrinsic
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104 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, boolean value, @ConstantNodeParameter Kind kind);
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105
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106 @NodeIntrinsic
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107 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, byte value, @ConstantNodeParameter Kind kind);
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108
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109 @NodeIntrinsic
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110 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, char value, @ConstantNodeParameter Kind kind);
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111
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112 @NodeIntrinsic
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113 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, double value, @ConstantNodeParameter Kind kind);
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114
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115 @NodeIntrinsic
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116 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, float value, @ConstantNodeParameter Kind kind);
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117
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118 @NodeIntrinsic
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119 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, int value, @ConstantNodeParameter Kind kind);
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120
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121 @NodeIntrinsic
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122 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, long value, @ConstantNodeParameter Kind kind);
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123
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124 @NodeIntrinsic
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125 public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, short value, @ConstantNodeParameter Kind kind);
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126
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127 }