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annotate graal/com.oracle.jvmci.hotspot.amd64/src/com/oracle/jvmci/hotspot/amd64/AMD64HotSpotJVMCIBackendFactory.java @ 21787:2766fee1809a
Use the fact that a range checked array index is not negative to avoid sign-extension of the index register.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Mon, 08 Jun 2015 19:32:59 +0200 |
parents | 2e8c01def9a5 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2012, 2015, 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 |
07b088d61d5d
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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.jvmci.hotspot.amd64; |
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24 |
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25 import static com.oracle.jvmci.hotspot.InitTimer.*; |
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26 |
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27 import java.util.*; |
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28 |
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29 import com.oracle.jvmci.amd64.*; |
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30 import com.oracle.jvmci.code.*; |
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31 import com.oracle.jvmci.hotspot.*; |
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32 import com.oracle.jvmci.meta.*; |
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33 import com.oracle.jvmci.runtime.*; |
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34 import com.oracle.jvmci.service.*; |
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35 |
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36 @ServiceProvider(HotSpotJVMCIBackendFactory.class) |
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37 public class AMD64HotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory { |
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38 |
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39 protected Architecture createArchitecture(HotSpotVMConfig config) { |
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40 return new AMD64(computeFeatures(config), computeFlags(config)); |
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41 } |
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42 |
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43 protected EnumSet<AMD64.CPUFeature> computeFeatures(HotSpotVMConfig config) { |
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44 // Configure the feature set using the HotSpot flag settings. |
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45 EnumSet<AMD64.CPUFeature> features = EnumSet.noneOf(AMD64.CPUFeature.class); |
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46 assert config.useSSE >= 2 : "minimum config for x64"; |
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47 features.add(AMD64.CPUFeature.SSE); |
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48 features.add(AMD64.CPUFeature.SSE2); |
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49 if ((config.x86CPUFeatures & config.cpuSSE3) != 0) { |
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50 features.add(AMD64.CPUFeature.SSE3); |
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51 } |
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52 if ((config.x86CPUFeatures & config.cpuSSSE3) != 0) { |
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53 features.add(AMD64.CPUFeature.SSSE3); |
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54 } |
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55 if ((config.x86CPUFeatures & config.cpuSSE4A) != 0) { |
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56 features.add(AMD64.CPUFeature.SSE4a); |
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57 } |
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58 if ((config.x86CPUFeatures & config.cpuSSE41) != 0) { |
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59 features.add(AMD64.CPUFeature.SSE4_1); |
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60 } |
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61 if ((config.x86CPUFeatures & config.cpuSSE42) != 0) { |
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62 features.add(AMD64.CPUFeature.SSE4_2); |
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63 } |
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64 if ((config.x86CPUFeatures & config.cpuAVX) != 0) { |
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65 features.add(AMD64.CPUFeature.AVX); |
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66 } |
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67 if ((config.x86CPUFeatures & config.cpuAVX2) != 0) { |
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68 features.add(AMD64.CPUFeature.AVX2); |
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69 } |
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70 if ((config.x86CPUFeatures & config.cpuERMS) != 0) { |
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71 features.add(AMD64.CPUFeature.ERMS); |
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72 } |
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73 if ((config.x86CPUFeatures & config.cpuLZCNT) != 0) { |
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74 features.add(AMD64.CPUFeature.LZCNT); |
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75 } |
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76 if ((config.x86CPUFeatures & config.cpuPOPCNT) != 0) { |
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77 features.add(AMD64.CPUFeature.POPCNT); |
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78 } |
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79 if ((config.x86CPUFeatures & config.cpuAES) != 0) { |
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80 features.add(AMD64.CPUFeature.AES); |
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81 } |
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82 if ((config.x86CPUFeatures & config.cpu3DNOWPREFETCH) != 0) { |
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83 features.add(AMD64.CPUFeature.AMD_3DNOW_PREFETCH); |
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84 } |
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85 if ((config.x86CPUFeatures & config.cpuBMI1) != 0) { |
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86 features.add(AMD64.CPUFeature.BMI1); |
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87 } |
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88 return features; |
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89 } |
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90 |
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91 protected EnumSet<AMD64.Flag> computeFlags(HotSpotVMConfig config) { |
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92 EnumSet<AMD64.Flag> flags = EnumSet.noneOf(AMD64.Flag.class); |
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93 if (config.useCountLeadingZerosInstruction) { |
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94 flags.add(AMD64.Flag.UseCountLeadingZerosInstruction); |
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95 } |
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96 if (config.useCountTrailingZerosInstruction) { |
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97 flags.add(AMD64.Flag.UseCountTrailingZerosInstruction); |
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98 } |
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99 return flags; |
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100 } |
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101 |
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102 protected TargetDescription createTarget(HotSpotVMConfig config) { |
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103 final int stackFrameAlignment = 16; |
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104 final int implicitNullCheckLimit = 4096; |
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105 final boolean inlineObjects = true; |
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106 return new HotSpotTargetDescription(createArchitecture(config), true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects); |
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107 } |
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108 |
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109 protected HotSpotConstantReflectionProvider createConstantReflection(HotSpotJVMCIRuntimeProvider runtime) { |
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110 return new HotSpotConstantReflectionProvider(runtime); |
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111 } |
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112 |
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113 protected RegisterConfig createRegisterConfig(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target) { |
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114 return new AMD64HotSpotRegisterConfig(target.arch, runtime.getConfig()); |
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115 } |
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116 |
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117 protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) { |
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118 return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig); |
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119 } |
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120 |
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121 protected HotSpotMetaAccessProvider createMetaAccess(HotSpotJVMCIRuntimeProvider runtime) { |
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122 return new HotSpotMetaAccessProvider(runtime); |
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123 } |
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124 |
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125 public String getArchitecture() { |
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126 return "AMD64"; |
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127 } |
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128 |
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129 @Override |
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130 public String toString() { |
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131 return getJVMCIRuntimeName() + ":" + getArchitecture(); |
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132 } |
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133 |
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134 public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, JVMCIBackend host) { |
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135 |
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136 assert host == null; |
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137 TargetDescription target = createTarget(runtime.getConfig()); |
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138 |
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139 RegisterConfig regConfig; |
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140 HotSpotCodeCacheProvider codeCache; |
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141 ConstantReflectionProvider constantReflection; |
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142 HotSpotMetaAccessProvider metaAccess; |
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143 try (InitTimer t = timer("create providers")) { |
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144 try (InitTimer rt = timer("create MetaAccess provider")) { |
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145 metaAccess = createMetaAccess(runtime); |
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146 } |
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147 try (InitTimer rt = timer("create RegisterConfig")) { |
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148 regConfig = createRegisterConfig(runtime, target); |
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149 } |
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150 try (InitTimer rt = timer("create CodeCache provider")) { |
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151 codeCache = createCodeCache(runtime, target, regConfig); |
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152 } |
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153 try (InitTimer rt = timer("create ConstantReflection provider")) { |
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154 constantReflection = createConstantReflection(runtime); |
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155 } |
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156 } |
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157 try (InitTimer rt = timer("instantiate backend")) { |
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158 return createBackend(metaAccess, codeCache, constantReflection); |
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159 } |
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160 } |
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161 |
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162 protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, ConstantReflectionProvider constantReflection) { |
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163 return new JVMCIBackend(metaAccess, codeCache, constantReflection); |
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164 } |
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165 |
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166 public String getJVMCIRuntimeName() { |
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167 return "basic"; |
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168 } |
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169 } |