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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/HotSpotSnippetUtils.java @ 6386:abeeb57b655d

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added MonitorSnippets which passes MonitorTest but is not yet enabled for general lowering
author Doug Simon <doug.simon@oracle.com>
date Thu, 13 Sep 2012 17:43:18 +0200
parents 1d7c73b5d787
children 2d84f74e394c
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6362
6d232ee6a62d factored shared snippet functionality into HotSpotSnippetUtils
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1 /*
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2 * Copyright (c) 2012, 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.hotspot.snippets;
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24
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25 import static com.oracle.graal.nodes.extended.UnsafeLoadNode.*;
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26
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27 import com.oracle.graal.api.code.*;
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28 import com.oracle.graal.api.code.Register.RegisterFlag;
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29 import com.oracle.graal.api.meta.*;
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30 import com.oracle.graal.hotspot.*;
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31 import com.oracle.graal.hotspot.nodes.*;
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32 import com.oracle.graal.nodes.extended.*;
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33 import com.oracle.graal.snippets.Snippet.Fold;
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34 import com.oracle.graal.snippets.*;
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35 import com.oracle.max.asm.target.amd64.*;
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36
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37 //JaCoCo Exclude
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38
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39 /**
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40 * A collection of methods used in HotSpot snippets.
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41 */
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42 public class HotSpotSnippetUtils {
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43
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44 @Fold
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45 static boolean verifyOops() {
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46 return HotSpotGraalRuntime.getInstance().getConfig().verifyOops;
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47 }
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48
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49 @Fold
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50 static int threadTlabTopOffset() {
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51 return HotSpotGraalRuntime.getInstance().getConfig().threadTlabTopOffset;
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52 }
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53
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54 @Fold
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55 static int threadTlabEndOffset() {
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56 return HotSpotGraalRuntime.getInstance().getConfig().threadTlabEndOffset;
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57 }
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58
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59 @Fold
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60 static Kind wordKind() {
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61 return HotSpotGraalRuntime.getInstance().getTarget().wordKind;
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62 }
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63
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64 @Fold
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65 static Register threadReg() {
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66 return HotSpotGraalRuntime.getInstance().getConfig().threadRegister;
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67 }
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68
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69 @Fold
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70 static Register stackPointerReg() {
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71 return AMD64.rsp;
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72 }
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73
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74 @Fold
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75 static int wordSize() {
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76 return HotSpotGraalRuntime.getInstance().getTarget().wordSize;
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77 }
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78
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79 @Fold
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80 static int pageSize() {
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81 return HotSpotGraalRuntime.getInstance().getTarget().pageSize;
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82 }
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83
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84 @Fold
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85 static int prototypeMarkWordOffset() {
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86 return HotSpotGraalRuntime.getInstance().getConfig().prototypeMarkWordOffset;
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87 }
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88
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89 @Fold
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90 static int markOffset() {
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91 return HotSpotGraalRuntime.getInstance().getConfig().markOffset;
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92 }
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93
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94 @Fold
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95 static int unlockedMask() {
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96 return HotSpotGraalRuntime.getInstance().getConfig().unlockedMask;
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97 }
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98
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99 @Fold
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100 static int biasedLockMaskInPlace() {
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101 return HotSpotGraalRuntime.getInstance().getConfig().biasedLockMaskInPlace;
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102 }
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103
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104 @Fold
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105 static int epochMaskInPlace() {
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106 return HotSpotGraalRuntime.getInstance().getConfig().epochMaskInPlace;
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107 }
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108
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109 @Fold
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110 static int biasedLockPattern() {
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111 return HotSpotGraalRuntime.getInstance().getConfig().biasedLockPattern;
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112 }
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113
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114 @Fold
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115 static int ageMaskInPlace() {
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116 return HotSpotGraalRuntime.getInstance().getConfig().ageMaskInPlace;
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117 }
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118
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119 @Fold
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120 static int hubOffset() {
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121 return HotSpotGraalRuntime.getInstance().getConfig().hubOffset;
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122 }
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123
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124 @Fold
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125 static int arrayLengthOffset() {
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126 return HotSpotGraalRuntime.getInstance().getConfig().arrayLengthOffset;
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127 }
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128
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129 @Fold
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130 static int arrayBaseOffset(Kind elementKind) {
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131 return elementKind.getArrayBaseOffset();
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132 }
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133
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134 @Fold
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135 static int arrayIndexScale(Kind elementKind) {
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136 return elementKind.getArrayIndexScale();
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137 }
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138
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139 @Fold
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140 static int cardTableShift() {
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141 return HotSpotGraalRuntime.getInstance().getConfig().cardtableShift;
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142 }
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143
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144 @Fold
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145 static long cardTableStart() {
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146 return HotSpotGraalRuntime.getInstance().getConfig().cardtableStartAddress;
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147 }
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148
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149 @Fold
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150 static int superCheckOffsetOffset() {
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151 return HotSpotGraalRuntime.getInstance().getConfig().superCheckOffsetOffset;
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152 }
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153
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154 @Fold
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155 static int secondarySuperCacheOffset() {
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156 return HotSpotGraalRuntime.getInstance().getConfig().secondarySuperCacheOffset;
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157 }
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158
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159 @Fold
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160 static int secondarySupersOffset() {
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161 return HotSpotGraalRuntime.getInstance().getConfig().secondarySupersOffset;
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162 }
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163
6386
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164 @Fold
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165 static int lockDisplacedMarkOffset() {
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166 return HotSpotGraalRuntime.getInstance().getConfig().basicLockDisplacedHeaderOffset;
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167 }
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168
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169 @Fold
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170 static boolean useBiasedLocking() {
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171 return HotSpotGraalRuntime.getInstance().getConfig().useBiasedLocking;
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172 }
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173
6362
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174 /**
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175 * Loads the hub from a object, null checking it first.
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176 */
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177 static Object loadHub(Object object) {
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178 return UnsafeLoadNode.loadObject(object, 0, hubOffset(), true);
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179 }
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180
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181
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182 static Object verifyOop(Object object) {
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183 if (verifyOops()) {
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184 VerifyOopStubCall.call(object);
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185 }
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186 return object;
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187 }
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188
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189 static Word asWord(Object object) {
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190 return Word.fromObject(object);
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191 }
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192
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193 static Word loadWord(Word address, int offset) {
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194 Object value = loadObject(address, 0, offset, true);
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195 return asWord(value);
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196 }
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197
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198 static {
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199 assert arrayIndexScale(Kind.Byte) == 1;
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200 assert arrayIndexScale(Kind.Boolean) == 1;
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201 assert arrayIndexScale(Kind.Char) == 2;
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202 assert arrayIndexScale(Kind.Short) == 2;
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203 assert arrayIndexScale(Kind.Int) == 4;
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204 assert arrayIndexScale(Kind.Long) == 8;
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205 assert arrayIndexScale(Kind.Float) == 4;
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206 assert arrayIndexScale(Kind.Double) == 8;
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207 }
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208
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209 public static Register getStubParameterRegister(int index) {
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210 RegisterConfig regConfig = HotSpotGraalRuntime.getInstance().getRuntime().getGlobalStubRegisterConfig();
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211 return regConfig.getCallingConventionRegisters(CallingConvention.Type.RuntimeCall, RegisterFlag.CPU)[index];
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212 }
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213 }