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annotate graal/com.oracle.graal.hotspot.amd64.test/src/com/oracle/graal/hotspot/amd64/test/DataPatchInConstantsTest.java @ 21673:5024c80224c7

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moved com.oracle.graal.[amd64|sparc] to com.oracle.jvmci.[amd64|sparc] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 02 Jun 2015 22:11:52 +0200
parents 48c1ebd24120
children 6df25b1418be
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2014, 2014, 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
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24 package com.oracle.graal.hotspot.amd64.test;
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25
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26 import com.oracle.jvmci.meta.AllocatableValue;
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27 import com.oracle.jvmci.meta.Constant;
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28
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29 import static com.oracle.jvmci.code.ValueUtil.*;
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30 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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31
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32 import org.junit.*;
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33
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34 import com.oracle.graal.api.replacements.*;
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35 import com.oracle.graal.asm.amd64.*;
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36 import com.oracle.graal.graph.*;
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37 import com.oracle.graal.hotspot.*;
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38 import com.oracle.graal.hotspot.nodes.*;
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39 import com.oracle.graal.hotspot.nodes.CompressionNode.CompressionOp;
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40 import com.oracle.graal.hotspot.nodes.type.*;
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41 import com.oracle.graal.hotspot.test.*;
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42 import com.oracle.graal.lir.*;
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43 import com.oracle.graal.lir.asm.*;
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44 import com.oracle.graal.lir.gen.*;
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45 import com.oracle.graal.nodeinfo.*;
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46 import com.oracle.graal.nodes.*;
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47 import com.oracle.graal.nodes.spi.*;
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48 import com.oracle.jvmci.amd64.*;
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49 import com.oracle.jvmci.hotspot.*;
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50
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51 public class DataPatchInConstantsTest extends HotSpotGraalCompilerTest {
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52
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53 @Before
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54 public void checkAMD64() {
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55 Assume.assumeTrue("skipping AMD64 specific test", getTarget().arch instanceof AMD64);
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56 }
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57
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58 private static final Object object = new Object() {
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59
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60 @Override
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61 public String toString() {
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62 return "testObject";
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63 }
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64 };
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65
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66 private static Object loadThroughPatch(Object obj) {
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67 return obj;
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68 }
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69
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70 public static Object oopSnippet() {
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71 Object patch = loadThroughPatch(object);
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72 if (object != patch) {
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73 return "invalid patch";
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74 }
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75 System.gc();
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76 patch = loadThroughPatch(object);
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77 if (object != patch) {
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78 return "failed after gc";
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79 }
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80 return patch;
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81 }
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82
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83 @Test
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84 public void oopTest() {
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85 test("oopSnippet");
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86 }
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87
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88 private static Object loadThroughCompressedPatch(Object obj) {
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89 return obj;
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90 }
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91
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92 public static Object narrowOopSnippet() {
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93 Object patch = loadThroughCompressedPatch(object);
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94 if (object != patch) {
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95 return "invalid patch";
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96 }
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97 System.gc();
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98 patch = loadThroughCompressedPatch(object);
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99 if (object != patch) {
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100 return "failed after gc";
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101 }
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102 return patch;
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103 }
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104
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105 @Test
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106 public void narrowOopTest() {
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107 Assume.assumeTrue("skipping narrow oop data patch test", config.useCompressedOops);
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108 test("narrowOopSnippet");
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109 }
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110
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111 public static Object compareSnippet() {
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112 Object uncompressed = loadThroughPatch(object);
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113 Object compressed = loadThroughCompressedPatch(object);
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114 if (object != uncompressed) {
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115 return "uncompressed failed";
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116 }
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117 if (object != compressed) {
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118 return "compressed failed";
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119 }
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120 if (uncompressed != compressed) {
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121 return "uncompressed != compressed";
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122 }
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123 return object;
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124 }
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125
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126 @Test
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127 public void compareTest() {
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128 Assume.assumeTrue("skipping narrow oop data patch test", config.useCompressedOops);
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129 test("compareSnippet");
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130 }
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131
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132 private static final HotSpotVMConfig config = HotSpotGraalRuntime.runtime().getConfig();
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133 private static boolean initReplacements = false;
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134
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135 @Before
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136 public void initReplacements() {
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137 if (!initReplacements) {
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138 getReplacements().registerSubstitutions(DataPatchInConstantsTest.class, DataPatchInConstantsTestSubstitutions.class);
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139 initReplacements = true;
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140 }
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141 }
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142
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143 @ClassSubstitution(DataPatchInConstantsTest.class)
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144 private static class DataPatchInConstantsTestSubstitutions {
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145
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146 @MethodSubstitution
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147 public static Object loadThroughPatch(Object obj) {
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148 return LoadThroughPatchNode.load(obj);
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149 }
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150
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151 @MethodSubstitution
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152 public static Object loadThroughCompressedPatch(Object obj) {
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153 Object compressed = CompressionNode.compression(CompressionOp.Compress, obj, config.getOopEncoding());
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154 Object patch = LoadThroughPatchNode.load(compressed);
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155 return CompressionNode.compression(CompressionOp.Uncompress, patch, config.getOopEncoding());
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156 }
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157 }
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158
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159 @NodeInfo
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160 private static final class LoadThroughPatchNode extends FixedWithNextNode implements LIRLowerable {
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161 public static final NodeClass<LoadThroughPatchNode> TYPE = NodeClass.create(LoadThroughPatchNode.class);
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162
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163 @Input protected ValueNode input;
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164
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165 public LoadThroughPatchNode(ValueNode input) {
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166 super(TYPE, input.stamp());
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167 this.input = input;
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168 }
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169
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170 public void generate(NodeLIRBuilderTool generator) {
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171 assert input.isConstant();
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172
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173 LIRGeneratorTool gen = generator.getLIRGeneratorTool();
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174 Variable ret = gen.newVariable(gen.getLIRKind(stamp()));
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175
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176 gen.append(new LoadThroughPatchOp(input.asConstant(), stamp() instanceof NarrowOopStamp, ret));
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177 generator.setResult(this, ret);
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178 }
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179
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180 @NodeIntrinsic
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181 public static native Object load(Object obj);
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182 }
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183
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184 private static final class LoadThroughPatchOp extends LIRInstruction {
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185 public static final LIRInstructionClass<LoadThroughPatchOp> TYPE = LIRInstructionClass.create(LoadThroughPatchOp.class);
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186
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187 final Constant c;
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188 final boolean compressed;
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189 @Def({REG}) AllocatableValue result;
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190
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191 LoadThroughPatchOp(Constant c, boolean compressed, AllocatableValue result) {
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192 super(TYPE);
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193 this.c = c;
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194 this.compressed = compressed;
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195 this.result = result;
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196 }
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197
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198 @Override
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199 public void emitCode(CompilationResultBuilder crb) {
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200 AMD64Address address = (AMD64Address) crb.recordDataReferenceInCode(c, compressed ? 4 : 8);
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201 AMD64MacroAssembler asm = (AMD64MacroAssembler) crb.asm;
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202 if (compressed) {
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203 asm.movl(asRegister(result), address);
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204 } else {
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205 asm.movq(asRegister(result), address);
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206 }
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207 }
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208 }
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209 }