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annotate test/compiler/6823354/Test6823354.java @ 19345:0d85421cb5d6

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Truffle/Instrumentation: add missing support method for InstrumentationPartialEvaluatinoTest
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Thu, 12 Feb 2015 17:25:50 -0800
parents c18cbe5936b8
children
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1 /*
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2 * Copyright (c) 2009, 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 * @test
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26 * @bug 6823354
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27 * @summary These methods can be instrinsified by using bit scan, bit test, and population count instructions.
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28 *
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29 * @run main/othervm -Xcomp -XX:CompileOnly=Test6823354.lzcomp,Test6823354.tzcomp,.dolzcomp,.dotzcomp Test6823354
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30 */
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31
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32 import java.net.URLClassLoader;
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33
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34 public class Test6823354 {
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35 // Arrays of corner case values.
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36 static final int[] ia = new int[] { 0, 1, -1, Integer.MIN_VALUE, Integer.MAX_VALUE };
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37 static final long[] la = new long[] { 0L, 1L, -1L, Long.MIN_VALUE, Long.MAX_VALUE };
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38
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39 public static void main(String[] args) throws Exception {
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40 // Load the classes and the methods.
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41 Integer.numberOfLeadingZeros(0);
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42 Integer.numberOfTrailingZeros(0);
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43 Long.numberOfLeadingZeros(0);
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44 Long.numberOfTrailingZeros(0);
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45
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46 lz();
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47 tz();
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48 }
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49
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50 static void lz() throws Exception {
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51 // int
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52
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53 // Test corner cases.
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54 for (int i = 0; i < ia.length; i++) {
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55 int x = ia[i];
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56 check(x, lzcomp(x), lzint(x));
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57 }
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58
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59 // Test all possible return values.
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60 for (int i = 0; i < Integer.SIZE; i++) {
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61 int x = 1 << i;
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62 check(x, lzcomp(x), lzint(x));
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63 }
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64
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65 String classname = "Test6823354$lzconI";
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66
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67 // Test Ideal optimizations (constant values).
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68 for (int i = 0; i < ia.length; i++) {
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69 testclass(classname, ia[i]);
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70 }
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71
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72 // Test Ideal optimizations (constant values).
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73 for (int i = 0; i < Integer.SIZE; i++) {
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74 int x = 1 << i;
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75 testclass(classname, x);
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76 }
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77
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78
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79 // long
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80
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81 // Test corner cases.
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82 for (int i = 0; i < ia.length; i++) {
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83 long x = la[i];
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84 check(x, lzcomp(x), lzint(x));
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85 }
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86
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87 // Test all possible return values.
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88 for (int i = 0; i < Long.SIZE; i++) {
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89 long x = 1L << i;
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90 check(x, lzcomp(x), lzint(x));
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91 }
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92
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93 classname = "Test6823354$lzconL";
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94
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95 // Test Ideal optimizations (constant values).
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96 for (int i = 0; i < la.length; i++) {
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97 testclass(classname, la[i]);
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98 }
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99
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100 // Test Ideal optimizations (constant values).
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101 for (int i = 0; i < Long.SIZE; i++) {
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102 long x = 1L << i;
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103 testclass(classname, x);
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104 }
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105 }
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106
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107 static void tz() throws Exception {
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108 // int
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109
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110 // Test corner cases.
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111 for (int i = 0; i < ia.length; i++) {
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112 int x = ia[i];
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113 check(x, tzcomp(x), tzint(x));
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114 }
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115
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116 // Test all possible return values.
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117 for (int i = 0; i < Integer.SIZE; i++) {
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118 int x = 1 << i;
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119 check(x, tzcomp(x), tzint(x));
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120 }
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121
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122 String classname = "Test6823354$tzconI";
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123
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124 // Test Ideal optimizations (constant values).
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125 for (int i = 0; i < ia.length; i++) {
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126 testclass(classname, ia[i]);
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127 }
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128
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129 // Test Ideal optimizations (constant values).
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130 for (int i = 0; i < Integer.SIZE; i++) {
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131 int x = 1 << i;
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132 testclass(classname, x);
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133 }
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134
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135
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136 // long
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137
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138 // Test corner cases.
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139 for (int i = 0; i < la.length; i++) {
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140 long x = la[i];
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141 check(x, tzcomp(x), tzint(x));
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142 }
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143
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144 // Test all possible return values.
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145 for (int i = 0; i < Long.SIZE; i++) {
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146 long x = 1L << i;
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147 check(x, tzcomp(x), tzint(x));
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148 }
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149
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150 classname = "Test6823354$tzconL";
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151
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152 // Test Ideal optimizations (constant values).
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153 for (int i = 0; i < la.length; i++) {
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154 testclass(classname, la[i]);
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155 }
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156
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157 // Test Ideal optimizations (constant values).
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158 for (int i = 0; i < Long.SIZE; i++) {
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159 long x = 1L << i;
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160 testclass(classname, x);
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161 }
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162 }
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163
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164 static void check(int value, int result, int expected) {
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165 //System.out.println(value + ": " + result + ", " + expected);
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166 if (result != expected)
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167 throw new InternalError(value + " failed: " + result + " != " + expected);
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168 }
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169
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170 static void check(long value, long result, long expected) {
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171 //System.out.println(value + ": " + result + ", " + expected);
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172 if (result != expected)
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173 throw new InternalError(value + " failed: " + result + " != " + expected);
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174 }
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175
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176 static int lzint( int i) { return Integer.numberOfLeadingZeros(i); }
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177 static int lzcomp(int i) { return Integer.numberOfLeadingZeros(i); }
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178
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179 static int lzint( long l) { return Long.numberOfLeadingZeros(l); }
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180 static int lzcomp(long l) { return Long.numberOfLeadingZeros(l); }
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181
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182 static int tzint( int i) { return Integer.numberOfTrailingZeros(i); }
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183 static int tzcomp(int i) { return Integer.numberOfTrailingZeros(i); }
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184
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185 static int tzint( long l) { return Long.numberOfTrailingZeros(l); }
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186 static int tzcomp(long l) { return Long.numberOfTrailingZeros(l); }
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187
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188 static void testclass(String classname, int x) throws Exception {
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189 System.setProperty("value", "" + x);
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190 loadandrunclass(classname);
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191 }
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192
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193 static void testclass(String classname, long x) throws Exception {
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194 System.setProperty("value", "" + x);
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195 loadandrunclass(classname);
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196 }
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197
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198 static void loadandrunclass(String classname) throws Exception {
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199 Class cl = Class.forName(classname);
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200 URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
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201 ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
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202 Class c = loader.loadClass(classname);
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203 Runnable r = (Runnable) c.newInstance();
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204 r.run();
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205 }
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206
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207 public static class lzconI implements Runnable {
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208 static final int VALUE;
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209
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210 static {
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211 int value = 0;
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212 try {
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213 value = Integer.decode(System.getProperty("value"));
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214 } catch (Throwable e) {}
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215 VALUE = value;
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216 }
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217
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218 public void run() { check(VALUE, lzint(VALUE), dolzcomp()); }
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219 static int dolzcomp() { return lzcomp(VALUE); }
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220 }
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221
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222 public static class lzconL implements Runnable {
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223 static final long VALUE;
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224
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225 static {
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226 long value = 0;
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227 try {
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228 value = Long.decode(System.getProperty("value"));
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229 } catch (Throwable e) {}
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230 VALUE = value;
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231 }
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232
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233 public void run() { check(VALUE, lzint(VALUE), dolzcomp()); }
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234 static int dolzcomp() { return lzcomp(VALUE); }
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235 }
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236
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237 public static class tzconI implements Runnable {
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238 static final int VALUE;
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239
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240 static {
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241 int value = 0;
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242 try {
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243 value = Integer.decode(System.getProperty("value"));
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244 } catch (Throwable e) {}
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245 VALUE = value;
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246 }
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247
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248 public void run() { check(VALUE, tzint(VALUE), dotzcomp()); }
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249 static int dotzcomp() { return tzcomp(VALUE); }
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250 }
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251
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252 public static class tzconL implements Runnable {
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253 static final long VALUE;
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254
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255 static {
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256 long value = 0;
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257 try {
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258 value = Long.decode(System.getProperty("value"));
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259 } catch (Throwable e) {}
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260 VALUE = value;
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261 }
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262
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263 public void run() { check(VALUE, tzint(VALUE), dotzcomp()); }
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264 static int dotzcomp() { return tzcomp(VALUE); }
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265 }
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266 }