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annotate graal/com.oracle.graal.replacements.test/src/com/oracle/graal/replacements/MethodSubstitutionTest.java @ 8451:2ffd472c5d25

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author Doug Simon <doug.simon@oracle.com>
date Fri, 22 Mar 2013 19:08:07 +0100
parents 10293cbfc2b6
children 92571f3eeeeb
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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.replacements;
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24
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25 import static org.junit.Assert.*;
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26
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27 import java.util.concurrent.*;
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28
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29 import org.junit.*;
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30
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31 import sun.misc.*;
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32
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33 import com.oracle.graal.api.code.*;
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34 import com.oracle.graal.api.replacements.*;
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35 import com.oracle.graal.compiler.test.*;
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36 import com.oracle.graal.debug.*;
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37 import com.oracle.graal.graph.*;
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38 import com.oracle.graal.nodes.*;
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39 import com.oracle.graal.nodes.calc.*;
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40 import com.oracle.graal.phases.*;
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41 import com.oracle.graal.phases.common.*;
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42 import com.oracle.graal.replacements.nodes.*;
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43
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44 /**
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45 * Tests if {@link MethodSubstitution}s are inlined correctly. Most test cases only assert that
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46 * there are no remaining invocations in the graph. This is sufficient if the method that is being
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47 * substituted is a native method. For Java methods, additional checks are necessary.
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48 */
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49 public class MethodSubstitutionTest extends GraalCompilerTest {
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50
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51 @Test
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52 public void testUnsafeSubstitutions() {
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53 test("unsafeCompareAndSwapInt");
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54 test("unsafeCompareAndSwapLong");
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55 test("unsafeCompareAndSwapObject");
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56
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57 test("unsafeGetBoolean");
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58 test("unsafeGetByte");
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59 test("unsafeGetShort");
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60 test("unsafeGetChar");
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61 test("unsafeGetInt");
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62 test("unsafeGetFloat");
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63 test("unsafeGetDouble");
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64 test("unsafeGetObject");
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65
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66 test("unsafePutBoolean");
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67 test("unsafePutByte");
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68 test("unsafePutShort");
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69 test("unsafePutChar");
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70 test("unsafePutInt");
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71 test("unsafePutFloat");
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72 test("unsafePutDouble");
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73 test("unsafePutObject");
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74
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75 test("unsafeDirectMemoryRead");
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76 test("unsafeDirectMemoryWrite");
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77 }
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78
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79 @SuppressWarnings("all")
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80 public static boolean unsafeCompareAndSwapInt(Unsafe unsafe, Object obj, long offset) {
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81 return unsafe.compareAndSwapInt(obj, offset, 0, 1);
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82 }
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83
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84 @SuppressWarnings("all")
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85 public static boolean unsafeCompareAndSwapLong(Unsafe unsafe, Object obj, long offset) {
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86 return unsafe.compareAndSwapLong(obj, offset, 0, 1);
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87 }
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88
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89 @SuppressWarnings("all")
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90 public static boolean unsafeCompareAndSwapObject(Unsafe unsafe, Object obj, long offset) {
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91 return unsafe.compareAndSwapObject(obj, offset, null, new Object());
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92 }
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93
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94 @SuppressWarnings("all")
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95 public static boolean unsafeGetBoolean(Unsafe unsafe, Object obj, long offset) {
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96 return unsafe.getBoolean(obj, offset) && unsafe.getBooleanVolatile(obj, offset);
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97 }
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98
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99 @SuppressWarnings("all")
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100 public static int unsafeGetByte(Unsafe unsafe, Object obj, long offset) {
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101 return unsafe.getByte(obj, offset) + unsafe.getByteVolatile(obj, offset);
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102 }
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103
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104 @SuppressWarnings("all")
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105 public static int unsafeGetShort(Unsafe unsafe, Object obj, long offset) {
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106 return unsafe.getShort(obj, offset) + unsafe.getShortVolatile(obj, offset);
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107 }
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108
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109 @SuppressWarnings("all")
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110 public static int unsafeGetChar(Unsafe unsafe, Object obj, long offset) {
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111 return unsafe.getChar(obj, offset) + unsafe.getCharVolatile(obj, offset);
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112 }
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113
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114 @SuppressWarnings("all")
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115 public static int unsafeGetInt(Unsafe unsafe, Object obj, long offset) {
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116 return unsafe.getInt(obj, offset) + unsafe.getIntVolatile(obj, offset);
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117 }
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118
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119 @SuppressWarnings("all")
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120 public static long unsafeGetLong(Unsafe unsafe, Object obj, long offset) {
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121 return unsafe.getLong(obj, offset) + unsafe.getLongVolatile(obj, offset);
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122 }
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123
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124 @SuppressWarnings("all")
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125 public static float unsafeGetFloat(Unsafe unsafe, Object obj, long offset) {
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126 return unsafe.getFloat(obj, offset) + unsafe.getFloatVolatile(obj, offset);
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127 }
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128
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129 @SuppressWarnings("all")
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130 public static double unsafeGetDouble(Unsafe unsafe, Object obj, long offset) {
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131 return unsafe.getDouble(obj, offset) + unsafe.getDoubleVolatile(obj, offset);
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132 }
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133
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134 @SuppressWarnings("all")
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135 public static boolean unsafeGetObject(Unsafe unsafe, Object obj, long offset) {
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136 return unsafe.getObject(obj, offset) == unsafe.getObjectVolatile(obj, offset);
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137 }
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138
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139 @SuppressWarnings("all")
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140 public static void unsafePutBoolean(Unsafe unsafe, Object obj, long offset, boolean value) {
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141 unsafe.putBoolean(obj, offset, value);
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142 unsafe.putBooleanVolatile(obj, offset, value);
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143 }
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144
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145 @SuppressWarnings("all")
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146 public static void unsafePutByte(Unsafe unsafe, Object obj, long offset, byte value) {
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147 unsafe.putByte(obj, offset, value);
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148 unsafe.putByteVolatile(obj, offset, value);
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149 }
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150
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151 @SuppressWarnings("all")
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152 public static void unsafePutShort(Unsafe unsafe, Object obj, long offset, short value) {
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153 unsafe.putShort(obj, offset, value);
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154 unsafe.putShortVolatile(obj, offset, value);
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155 }
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156
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157 @SuppressWarnings("all")
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158 public static void unsafePutChar(Unsafe unsafe, Object obj, long offset, char value) {
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159 unsafe.putChar(obj, offset, value);
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160 unsafe.putCharVolatile(obj, offset, value);
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161 }
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162
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163 @SuppressWarnings("all")
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164 public static void unsafePutInt(Unsafe unsafe, Object obj, long offset, int value) {
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165 unsafe.putInt(obj, offset, value);
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166 unsafe.putIntVolatile(obj, offset, value);
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167 unsafe.putOrderedInt(obj, offset, value);
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168 }
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169
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170 @SuppressWarnings("all")
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171 public static void unsafePutLong(Unsafe unsafe, Object obj, long offset, long value) {
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172 unsafe.putLong(obj, offset, value);
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173 unsafe.putLongVolatile(obj, offset, value);
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174 unsafe.putOrderedLong(obj, offset, value);
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175 }
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176
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177 @SuppressWarnings("all")
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178 public static void unsafePutFloat(Unsafe unsafe, Object obj, long offset, float value) {
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179 unsafe.putFloat(obj, offset, value);
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180 unsafe.putFloatVolatile(obj, offset, value);
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181 }
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182
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183 @SuppressWarnings("all")
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184 public static void unsafePutDouble(Unsafe unsafe, Object obj, long offset, double value) {
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185 unsafe.putDouble(obj, offset, value);
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186 unsafe.putDoubleVolatile(obj, offset, value);
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187 }
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188
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189 @SuppressWarnings("all")
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190 public static void unsafePutObject(Unsafe unsafe, Object obj, long offset, Object value) {
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191 unsafe.putObject(obj, offset, value);
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192 unsafe.putObjectVolatile(obj, offset, value);
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193 unsafe.putOrderedObject(obj, offset, value);
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194 }
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195
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196 @SuppressWarnings("all")
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197 public static double unsafeDirectMemoryRead(Unsafe unsafe, long address) {
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198 // Unsafe.getBoolean(long) and Unsafe.getObject(long) do not exist
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199 return unsafe.getByte(address) + unsafe.getShort(address) + unsafe.getChar(address) + unsafe.getInt(address) + unsafe.getLong(address) + unsafe.getFloat(address) + unsafe.getDouble(address);
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200 }
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201
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202 @SuppressWarnings("all")
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203 public static void unsafeDirectMemoryWrite(Unsafe unsafe, long address, byte value) {
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204 // Unsafe.putBoolean(long) and Unsafe.putObject(long) do not exist
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205 unsafe.putByte(address, value);
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206 unsafe.putShort(address, value);
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207 unsafe.putChar(address, (char) value);
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208 unsafe.putInt(address, value);
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209 unsafe.putLong(address, value);
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210 unsafe.putFloat(address, value);
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211 unsafe.putDouble(address, value);
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212 }
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213
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214 @Test
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215 public void testMathSubstitutions() {
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216 assertInGraph(assertNotInGraph(test("mathAbs"), IfNode.class), MathIntrinsicNode.class); // Java
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217 test("math");
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218 }
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219
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220 @SuppressWarnings("all")
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221 public static double mathAbs(double value) {
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222 return Math.abs(value);
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223 }
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224
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225 @SuppressWarnings("all")
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226 public static double math(double value) {
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227 return Math.sqrt(value) + Math.log(value) + Math.log10(value) + Math.sin(value) + Math.cos(value) + Math.tan(value);
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228 // Math.exp(value) +
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229 // Math.pow(value, 13);
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230 }
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231
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232 @Test
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233 public void testIntegerSubstitutions() {
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234 assertInGraph(test("integerReverseBytes"), ReverseBytesNode.class); // Java
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235 assertInGraph(test("integerNumberOfLeadingZeros"), BitScanReverseNode.class); // Java
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236 assertInGraph(test("integerNumberOfTrailingZeros"), BitScanForwardNode.class); // Java
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237 assertInGraph(test("integerBitCount"), BitCountNode.class); // Java
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238 }
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239
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240 @SuppressWarnings("all")
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241 public static int integerReverseBytes(int value) {
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242 return Integer.reverseBytes(value);
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243 }
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244
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245 @SuppressWarnings("all")
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246 public static int integerNumberOfLeadingZeros(int value) {
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247 return Integer.numberOfLeadingZeros(value);
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248 }
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249
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250 @SuppressWarnings("all")
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251 public static int integerNumberOfTrailingZeros(int value) {
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252 return Integer.numberOfTrailingZeros(value);
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253 }
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254
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255 @SuppressWarnings("all")
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256 public static int integerBitCount(int value) {
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257 return Integer.bitCount(value);
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258 }
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259
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260 @Test
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261 public void testLongSubstitutions() {
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262 assertInGraph(test("longReverseBytes"), ReverseBytesNode.class); // Java
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263 assertInGraph(test("longNumberOfLeadingZeros"), BitScanReverseNode.class); // Java
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264 assertInGraph(test("longNumberOfTrailingZeros"), BitScanForwardNode.class); // Java
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265 assertInGraph(test("longBitCount"), BitCountNode.class); // Java
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266 }
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267
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268 @SuppressWarnings("all")
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269 public static long longReverseBytes(long value) {
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270 return Long.reverseBytes(value);
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271 }
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272
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273 @SuppressWarnings("all")
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274 public static long longNumberOfLeadingZeros(long value) {
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275 return Long.numberOfLeadingZeros(value);
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276 }
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277
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278 @SuppressWarnings("all")
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279 public static long longNumberOfTrailingZeros(long value) {
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280 return Long.numberOfTrailingZeros(value);
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281 }
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282
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283 @SuppressWarnings("all")
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284 public static int longBitCount(long value) {
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285 return Long.bitCount(value);
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286 }
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287
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288 @Test
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289 public void testFloatSubstitutions() {
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290 assertInGraph(test("floatToIntBits"), ConvertNode.class); // Java
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291 test("intBitsToFloat");
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292 }
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293
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294 @SuppressWarnings("all")
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295 public static int floatToIntBits(float value) {
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296 return Float.floatToIntBits(value);
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297 }
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298
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299 @SuppressWarnings("all")
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300 public static float intBitsToFloat(int value) {
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301 return Float.intBitsToFloat(value);
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302 }
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303
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304 @Test
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305 public void testDoubleSubstitutions() {
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306 assertInGraph(test("doubleToLongBits"), ConvertNode.class); // Java
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307 test("longBitsToDouble");
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308 }
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309
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310 @SuppressWarnings("all")
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311 public static long doubleToLongBits(double value) {
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312 return Double.doubleToLongBits(value);
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313 }
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314
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315 @SuppressWarnings("all")
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316 public static double longBitsToDouble(long value) {
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317 return Double.longBitsToDouble(value);
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318 }
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319
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320 protected StructuredGraph test(final String snippet) {
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321 return Debug.scope("MethodSubstitutionTest", runtime.lookupJavaMethod(getMethod(snippet)), new Callable<StructuredGraph>() {
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322
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323 @Override
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324 public StructuredGraph call() {
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325 StructuredGraph graph = parse(snippet);
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326 PhasePlan phasePlan = getDefaultPhasePlan();
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327 Assumptions assumptions = new Assumptions(true);
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328 new ComputeProbabilityPhase().apply(graph);
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329 Debug.dump(graph, "Graph");
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330 new InliningPhase(runtime(), null, assumptions, null, phasePlan, OptimisticOptimizations.ALL).apply(graph);
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331 Debug.dump(graph, "Graph");
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332 new CanonicalizerPhase(runtime(), assumptions).apply(graph);
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333 new DeadCodeEliminationPhase().apply(graph);
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334
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335 assertNotInGraph(graph, Invoke.class);
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336 return graph;
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337 }
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338 });
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339 }
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340
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341 protected static StructuredGraph assertNotInGraph(StructuredGraph graph, Class<?> clazz) {
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342 for (Node node : graph.getNodes()) {
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343 if (clazz.isInstance(node)) {
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344 fail(node.toString());
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345 }
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346 }
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347 return graph;
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348 }
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349
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350 protected static StructuredGraph assertInGraph(StructuredGraph graph, Class<?> clazz) {
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351 for (Node node : graph.getNodes()) {
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352 if (clazz.isInstance(node)) {
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353 return graph;
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354 }
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355 }
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356 fail("Graph does not contain a node of class " + clazz.getName());
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357 return graph;
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358 }
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359 }