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annotate test/compiler/intrinsics/bmi/verifycode/BmiIntrinsicBase.java @ 17868:72558bacada3

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8038953: Add sanity tests for BMI1 and LZCNT instructions Reviewed-by: kvn, iignatyev Contributed-by: anton.ivanov@oracle.com
author iignatyev
date Fri, 11 Apr 2014 00:34:51 +0400
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17868
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1 /*
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2 * Copyright (c) 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
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25 import com.oracle.java.testlibrary.Asserts;
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26 import com.oracle.java.testlibrary.Platform;
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27 import com.oracle.java.testlibrary.Utils;
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28 import sun.hotspot.code.NMethod;
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29 import sun.hotspot.cpuinfo.CPUInfo;
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30
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31 import java.lang.reflect.Executable;
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32 import java.lang.reflect.Method;
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33 import java.util.concurrent.Callable;
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34 import java.util.function.Function;
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35
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36 public class BmiIntrinsicBase extends CompilerWhiteBoxTest {
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37
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38 protected BmiIntrinsicBase(BmiTestCase testCase) {
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39 super(testCase);
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40 }
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41
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42 public static void verifyTestCase(Function<Method, BmiTestCase> constructor, Method... methods) throws Exception {
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43 for (Method method : methods) {
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44 new BmiIntrinsicBase(constructor.apply(method)).test();
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45 }
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46 }
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47
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48 @Override
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49 protected void test() throws Exception {
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50 BmiTestCase bmiTestCase = (BmiTestCase) testCase;
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51
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52 if (!(Platform.isX86() || Platform.isX64())) {
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53 System.out.println("Unsupported platform, test SKIPPED");
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54 return;
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55 }
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56
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57 if (!Platform.isServer()) {
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58 System.out.println("Not server VM, test SKIPPED");
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59 return;
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60 }
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61
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62 if (!CPUInfo.hasFeature(bmiTestCase.getCpuFlag())) {
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63 System.out.println("Unsupported hardware, no required CPU flag " + bmiTestCase.getCpuFlag() + " , test SKIPPED");
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64 return;
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65 }
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66
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67 if (!Boolean.valueOf(getVMOption(bmiTestCase.getVMFlag()))) {
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68 System.out.println("VM flag " + bmiTestCase.getVMFlag() + " disabled, test SKIPPED");
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69 return;
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70 }
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71
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72 System.out.println(testCase.name());
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73
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74 switch (MODE) {
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75 case "compiled mode":
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76 case "mixed mode":
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77 if (TIERED_COMPILATION && TIERED_STOP_AT_LEVEL != CompilerWhiteBoxTest.COMP_LEVEL_MAX) {
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78 System.out.println("TieredStopAtLevel value (" + TIERED_STOP_AT_LEVEL + ") is too low, test SKIPPED");
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79 return;
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80 }
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81 deoptimize();
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82 compileAtLevelAndCheck(CompilerWhiteBoxTest.COMP_LEVEL_MAX);
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83 break;
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84 case "interpreted mode": // test is not applicable in this mode;
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85 System.err.println("Warning: This test is not applicable in mode: " + MODE);
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86 break;
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87 default:
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88 throw new AssertionError("Test bug, unknown VM mode: " + MODE);
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89 }
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90 }
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91
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92 protected void compileAtLevelAndCheck(int level) {
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93 WHITE_BOX.enqueueMethodForCompilation(method, level);
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94 waitBackgroundCompilation();
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95 checkCompilation(method, level);
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96 checkEmittedCode(method);
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97 }
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98
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99 protected void checkCompilation(Executable executable, int level) {
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100 if (!WHITE_BOX.isMethodCompiled(executable)) {
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101 throw new AssertionError("Test bug, expected compilation (level): " + level + ", but not compiled" + WHITE_BOX.isMethodCompilable(executable, level));
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102 }
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103 final int compilationLevel = WHITE_BOX.getMethodCompilationLevel(executable);
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104 if (compilationLevel != level) {
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105 throw new AssertionError("Test bug, expected compilation (level): " + level + ", but level: " + compilationLevel);
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106 }
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107 }
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108
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109 protected void checkEmittedCode(Executable executable) {
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110 final byte[] nativeCode = NMethod.get(executable, false).insts;
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111 if (!((BmiTestCase) testCase).verifyPositive(nativeCode)) {
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112 throw new AssertionError(testCase.name() + "CPU instructions expected not found: " + Utils.toHexString(nativeCode));
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113 } else {
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114 System.out.println("CPU instructions found, PASSED");
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115 }
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116 }
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117
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118 abstract static class BmiTestCase implements CompilerWhiteBoxTest.TestCase {
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119 private final Method method;
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120 protected byte[] instrMask;
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121 protected byte[] instrPattern;
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122 protected boolean isLongOperation;
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123
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124 public BmiTestCase(Method method) {
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125 this.method = method;
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126 }
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127
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128 @Override
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129 public String name() {
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130 return method.toGenericString();
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131 }
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132
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133 @Override
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134 public Executable getExecutable() {
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135 return method;
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136 }
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137
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138 @Override
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139 public Callable<Integer> getCallable() {
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140 return null;
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141 }
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142
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143 @Override
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144 public boolean isOsr() {
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145 return false;
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146 }
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147
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148 protected int countCpuInstructions(byte[] nativeCode) {
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149 int count = 0;
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150 int patternSize = Math.min(instrMask.length, instrPattern.length);
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151 boolean found;
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152 Asserts.assertGreaterThan(patternSize, 0);
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153 for (int i = 0, n = nativeCode.length - patternSize; i < n; i++) {
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154 found = true;
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155 for (int j = 0; j < patternSize; j++) {
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156 if ((nativeCode[i + j] & instrMask[j]) != instrPattern[j]) {
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157 found = false;
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158 break;
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159 }
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160 }
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161 if (found) {
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162 ++count;
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163 i += patternSize - 1;
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164 }
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165 }
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166 return count;
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167 }
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168
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169 public boolean verifyPositive(byte[] nativeCode) {
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170 final int cnt = countCpuInstructions(nativeCode);
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171 if (Platform.isX86()) {
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172 return cnt >= (isLongOperation ? 2 : 1);
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173 } else {
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174 return Platform.isX64() && cnt >= 1;
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175 }
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176 }
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177
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178 protected String getCpuFlag() {
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179 return "bmi1";
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180 }
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181
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182 protected String getVMFlag() {
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183 return "UseBMI1Instructions";
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184 }
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185 }
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186 }