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annotate graal/com.oracle.graal.hotspot.amd64.test/src/com/oracle/graal/hotspot/amd64/test/DataPatchInConstantsTest.java @ 18845:f57d86eb036f

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removed Node factory methods
author Doug Simon <doug.simon@oracle.com>
date Mon, 12 Jan 2015 20:39:04 +0100
parents cdb9c605051a
children ec0733b5a90a
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 static com.oracle.graal.api.code.ValueUtil.*;
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27 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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28
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29 import org.junit.*;
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30
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31 import com.oracle.graal.amd64.*;
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32 import com.oracle.graal.api.meta.*;
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33 import com.oracle.graal.api.replacements.*;
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34 import com.oracle.graal.asm.amd64.*;
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35 import com.oracle.graal.hotspot.*;
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36 import com.oracle.graal.hotspot.nodes.*;
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37 import com.oracle.graal.hotspot.nodes.CompressionNode.CompressionOp;
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38 import com.oracle.graal.hotspot.nodes.type.*;
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39 import com.oracle.graal.hotspot.test.*;
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40 import com.oracle.graal.lir.*;
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41 import com.oracle.graal.lir.asm.*;
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42 import com.oracle.graal.lir.gen.*;
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43 import com.oracle.graal.nodeinfo.*;
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44 import com.oracle.graal.nodes.*;
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45 import com.oracle.graal.nodes.spi.*;
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46
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47 public class DataPatchInConstantsTest extends HotSpotGraalCompilerTest {
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48
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49 @Before
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50 public void checkAMD64() {
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51 Assume.assumeTrue("skipping AMD64 specific test", getTarget().arch instanceof AMD64);
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52 }
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53
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54 private static final Object object = new Object() {
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55
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56 @Override
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57 public String toString() {
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58 return "testObject";
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59 }
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60 };
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61
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62 private static Object loadThroughPatch(Object obj) {
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63 return obj;
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64 }
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65
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66 public static Object oopSnippet() {
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67 Object patch = loadThroughPatch(object);
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68 if (object != patch) {
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69 return "invalid patch";
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70 }
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71 System.gc();
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72 patch = loadThroughPatch(object);
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73 if (object != patch) {
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74 return "failed after gc";
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75 }
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76 return patch;
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77 }
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78
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79 @Test
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80 public void oopTest() {
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81 test("oopSnippet");
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82 }
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83
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84 private static Object loadThroughCompressedPatch(Object obj) {
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85 return obj;
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86 }
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87
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88 public static Object narrowOopSnippet() {
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89 Object patch = loadThroughCompressedPatch(object);
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90 if (object != patch) {
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91 return "invalid patch";
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92 }
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93 System.gc();
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94 patch = loadThroughCompressedPatch(object);
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95 if (object != patch) {
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96 return "failed after gc";
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97 }
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98 return patch;
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99 }
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100
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101 @Test
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102 public void narrowOopTest() {
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103 Assume.assumeTrue("skipping narrow oop data patch test", config.useCompressedOops);
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104 test("narrowOopSnippet");
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105 }
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106
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107 public static Object compareSnippet() {
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108 Object uncompressed = loadThroughPatch(object);
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109 Object compressed = loadThroughCompressedPatch(object);
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110 if (object != uncompressed) {
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111 return "uncompressed failed";
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112 }
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113 if (object != compressed) {
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114 return "compressed failed";
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115 }
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116 if (uncompressed != compressed) {
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117 return "uncompressed != compressed";
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118 }
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119 return object;
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120 }
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121
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122 @Test
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123 public void compareTest() {
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124 Assume.assumeTrue("skipping narrow oop data patch test", config.useCompressedOops);
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125 test("compareSnippet");
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126 }
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127
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128 private static final HotSpotVMConfig config = HotSpotGraalRuntime.runtime().getConfig();
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129 private static boolean initReplacements = false;
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130
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131 @Before
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132 public void initReplacements() {
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133 if (!initReplacements) {
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134 getReplacements().registerSubstitutions(DataPatchInConstantsTest.class, DataPatchInConstantsTestSubstitutions.class);
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135 initReplacements = true;
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136 }
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137 }
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138
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139 @ClassSubstitution(DataPatchInConstantsTest.class)
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140 private static class DataPatchInConstantsTestSubstitutions {
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141
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142 @MethodSubstitution
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143 public static Object loadThroughPatch(Object obj) {
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144 return LoadThroughPatchNode.load(obj);
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145 }
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146
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147 @MethodSubstitution
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148 public static Object loadThroughCompressedPatch(Object obj) {
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149 Object compressed = CompressionNode.compression(CompressionOp.Compress, obj, config.getOopEncoding());
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150 Object patch = LoadThroughPatchNode.load(compressed);
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151 return CompressionNode.compression(CompressionOp.Uncompress, patch, config.getOopEncoding());
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152 }
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153 }
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154
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155 @NodeInfo
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156 private static class LoadThroughPatchNode extends FixedWithNextNode implements LIRLowerable {
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157
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158 @Input protected ValueNode input;
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159
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160 public LoadThroughPatchNode(ValueNode input) {
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161 super(input.stamp());
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162 this.input = input;
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163 }
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164
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165 public void generate(NodeLIRBuilderTool generator) {
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166 assert input.isConstant();
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167
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168 LIRGeneratorTool gen = generator.getLIRGeneratorTool();
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169 Variable ret = gen.newVariable(gen.getLIRKind(stamp()));
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170
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171 gen.append(new LoadThroughPatchOp(input.asConstant(), stamp() instanceof NarrowOopStamp, ret));
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172 generator.setResult(this, ret);
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173 }
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174
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175 @NodeIntrinsic
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176 public static native Object load(Object obj);
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177 }
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178
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179 private static class LoadThroughPatchOp extends LIRInstructionBase {
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180
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181 final Constant c;
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182 final boolean compressed;
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183 @Def({REG}) AllocatableValue result;
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184
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185 LoadThroughPatchOp(Constant c, boolean compressed, AllocatableValue result) {
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186 this.c = c;
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187 this.compressed = compressed;
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188 this.result = result;
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189 }
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190
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191 @Override
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192 public void emitCode(CompilationResultBuilder crb) {
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193 AMD64Address address = (AMD64Address) crb.recordDataReferenceInCode(c, compressed ? 4 : 8);
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194 AMD64MacroAssembler asm = (AMD64MacroAssembler) crb.asm;
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195 if (compressed) {
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196 asm.movl(asRegister(result), address);
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197 } else {
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198 asm.movq(asRegister(result), address);
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199 }
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200 }
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201 }
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202 }