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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java @ 17450:45b45f902bed

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removed Node generation (GRAAL-857)
author Doug Simon <doug.simon@oracle.com>
date Wed, 15 Oct 2014 15:35:33 +0200
parents 845e881ce054
children 9619ba4daf4c
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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 static com.oracle.graal.compiler.common.UnsafeAccess.*;
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26
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.compiler.common.type.*;
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29 import com.oracle.graal.nodeinfo.*;
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30 import com.oracle.graal.nodes.*;
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31 import com.oracle.graal.nodes.java.*;
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32 import com.oracle.graal.nodes.spi.*;
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34 /**
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35 * Store of a value at a location specified as an offset relative to an object. No null check is
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36 * performed before the store.
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37 */
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38 @NodeInfo
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39 public class UnsafeStoreNode extends UnsafeAccessNode implements StateSplit, Lowerable, Virtualizable, MemoryCheckpoint.Single {
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40
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41 @Input ValueNode value;
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42 @OptionalInput(InputType.State) FrameState stateAfter;
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43
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44 public static UnsafeStoreNode create(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity) {
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45 return new UnsafeStoreNode(object, offset, value, accessKind, locationIdentity);
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46 }
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47
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48 protected UnsafeStoreNode(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity) {
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49 this(object, offset, value, accessKind, locationIdentity, null);
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50 }
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51
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52 public static UnsafeStoreNode create(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity, FrameState stateAfter) {
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53 return new UnsafeStoreNode(object, offset, value, accessKind, locationIdentity, stateAfter);
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54 }
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55
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56 protected UnsafeStoreNode(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity, FrameState stateAfter) {
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57 super(StampFactory.forVoid(), object, offset, accessKind, locationIdentity);
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58 this.value = value;
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59 this.stateAfter = stateAfter;
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60 assert accessKind != Kind.Void && accessKind != Kind.Illegal;
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61 }
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62
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63 public FrameState stateAfter() {
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64 return stateAfter;
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65 }
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66
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67 public void setStateAfter(FrameState x) {
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68 assert x == null || x.isAlive() : "frame state must be in a graph";
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69 updateUsages(stateAfter, x);
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70 stateAfter = x;
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71 }
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72
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73 public boolean hasSideEffect() {
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74 return true;
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75 }
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76
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77 public ValueNode value() {
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78 return value;
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79 }
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80
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81 @Override
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82 public void lower(LoweringTool tool) {
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83 tool.getLowerer().lower(this, tool);
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84 }
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85
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86 @Override
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87 public void virtualize(VirtualizerTool tool) {
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88 State state = tool.getObjectState(object());
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89 if (state != null && state.getState() == EscapeState.Virtual) {
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90 ValueNode indexValue = tool.getReplacedValue(offset());
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91 if (indexValue.isConstant()) {
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92 long off = indexValue.asConstant().asLong();
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93 int entryIndex = state.getVirtualObject().entryIndexForOffset(off);
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94 if (entryIndex != -1) {
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95 Kind entryKind = state.getVirtualObject().entryKind(entryIndex);
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96 ValueNode entry = state.getEntry(entryIndex);
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97 if (entry.getKind() == value.getKind() || entryKind == accessKind()) {
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98 tool.setVirtualEntry(state, entryIndex, value(), true);
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99 tool.delete();
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100 } else {
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101 if ((accessKind() == Kind.Long || accessKind() == Kind.Double) && entryKind == Kind.Int) {
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102 int nextIndex = state.getVirtualObject().entryIndexForOffset(off + 4);
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103 if (nextIndex != -1) {
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104 Kind nextKind = state.getVirtualObject().entryKind(nextIndex);
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105 if (nextKind == Kind.Int) {
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106 tool.setVirtualEntry(state, entryIndex, value(), true);
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107 tool.setVirtualEntry(state, nextIndex, ConstantNode.forConstant(Constant.forIllegal(), tool.getMetaAccessProvider(), graph()), true);
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108 tool.delete();
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109 }
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110 }
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111 }
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112 }
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113 }
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114 }
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115 }
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116 }
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117
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118 @Override
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119 protected ValueNode cloneAsFieldAccess(ResolvedJavaField field) {
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120 return StoreFieldNode.create(object(), field, value(), stateAfter());
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121 }
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122
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123 @Override
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124 protected ValueNode cloneAsArrayAccess(ValueNode location, LocationIdentity identity) {
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125 return UnsafeStoreNode.create(object(), location, value, accessKind(), identity, stateAfter());
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126 }
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127
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128 public FrameState getState() {
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129 return stateAfter;
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130 }
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131
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132 // specialized on value type until boxing/unboxing is sorted out in intrinsification
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133
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134 @SuppressWarnings("unused")
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135 @NodeIntrinsic
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136 public static void store(Object object, long offset, Object value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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137 unsafe.putObject(object, offset, value);
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138 }
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139
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140 @SuppressWarnings("unused")
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141 @NodeIntrinsic
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142 public static void store(Object object, long offset, boolean value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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143 unsafe.putBoolean(object, offset, value);
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144 }
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145
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146 @SuppressWarnings("unused")
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147 @NodeIntrinsic
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148 public static void store(Object object, long offset, byte value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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149 unsafe.putByte(object, offset, value);
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150 }
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151
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152 @SuppressWarnings("unused")
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153 @NodeIntrinsic
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154 public static void store(Object object, long offset, char value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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155 unsafe.putChar(object, offset, value);
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156 }
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157
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158 @SuppressWarnings("unused")
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159 @NodeIntrinsic
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160 public static void store(Object object, long offset, double value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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161 unsafe.putDouble(object, offset, value);
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162 }
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163
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164 @SuppressWarnings("unused")
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165 @NodeIntrinsic
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166 public static void store(Object object, long offset, float value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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167 unsafe.putFloat(object, offset, value);
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168 }
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169
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170 @SuppressWarnings("unused")
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171 @NodeIntrinsic
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172 public static void store(Object object, long offset, int value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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173 unsafe.putInt(object, offset, value);
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174 }
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175
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176 @SuppressWarnings("unused")
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177 @NodeIntrinsic
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178 public static void store(Object object, long offset, long value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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179 unsafe.putLong(object, offset, value);
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180 }
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181
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182 @SuppressWarnings("unused")
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183 @NodeIntrinsic
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184 public static void store(Object object, long offset, short value, @ConstantNodeParameter Kind kind, @ConstantNodeParameter LocationIdentity locationIdentity) {
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185 unsafe.putShort(object, offset, value);
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186 }
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187 }