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annotate truffle/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/LimitTest.java @ 22241:14e6dfb1ef05

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Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation" - Caused by lack of a "vm" known to the Accessor during most testing, making the Instrumenter unavailable, which is now required to create a CallTarget - Modified the Instrumenter/Accessor with a static field that can be reflectively "poked" with a vm value for testing - Create a pair of methods to globally enable/disable testing mode to modify that static field and restore it when tests complete.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 22 Sep 2015 20:31:19 -0700
parents dc83cc1f94f2
children 5309cc9668e3
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1 /*
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2 * Copyright (c) 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
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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.truffle.api.dsl.test;
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24
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25 import static com.oracle.truffle.api.dsl.test.TestHelper.createCallTarget;
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26 import static org.junit.Assert.assertEquals;
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27 import static org.junit.Assert.fail;
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28
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29 import org.junit.After;
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30 import org.junit.Before;
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31 import org.junit.Test;
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32
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33 import com.oracle.truffle.api.CallTarget;
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34 import com.oracle.truffle.api.dsl.Cached;
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35 import com.oracle.truffle.api.dsl.NodeChild;
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36 import com.oracle.truffle.api.dsl.Specialization;
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37 import com.oracle.truffle.api.dsl.UnsupportedSpecializationException;
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38 import com.oracle.truffle.api.dsl.test.LimitTestFactory.ConstantLimitTestFactory;
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39 import com.oracle.truffle.api.dsl.test.LimitTestFactory.DefaultLimit3TestFactory;
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40 import com.oracle.truffle.api.dsl.test.LimitTestFactory.LocalLimitTestFactory;
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41 import com.oracle.truffle.api.dsl.test.LimitTestFactory.MethodLimitTestFactory;
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42 import com.oracle.truffle.api.dsl.test.TypeSystemTest.ValueNode;
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43 import com.oracle.truffle.api.dsl.test.utilities.InstrumentationTestMode;
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44
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45 @SuppressWarnings("unused")
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46 public class LimitTest {
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47
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48 @Before
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49 public void before() throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
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50 InstrumentationTestMode.set(true);
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51 }
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52
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53 @After
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54 public void after() throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
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55 InstrumentationTestMode.set(false);
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56 }
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57
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58 @Test
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59 public void testDefaultLimit3() {
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60 CallTarget root = createCallTarget(DefaultLimit3TestFactory.getInstance());
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61 assertEquals(42, root.call(42));
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62 assertEquals(43, root.call(43));
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63 assertEquals(44, root.call(44));
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64 try {
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65 root.call(45);
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66 fail();
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67 } catch (UnsupportedSpecializationException e) {
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68 }
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69 }
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70
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71 @NodeChild
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72 static class DefaultLimit3Test extends ValueNode {
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73 @Specialization(guards = "value == cachedValue")
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74 static int do1(int value, @Cached("value") int cachedValue) {
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75 return cachedValue;
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76 }
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77 }
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78
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79 @Test
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80 public void testConstantLimit() {
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81 CallTarget root = createCallTarget(ConstantLimitTestFactory.getInstance());
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82 assertEquals(42, root.call(42));
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83 assertEquals(43, root.call(43));
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84 try {
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85 root.call(44);
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86 fail();
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87 } catch (UnsupportedSpecializationException e) {
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88 }
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89 }
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90
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91 @NodeChild
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92 static class ConstantLimitTest extends ValueNode {
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93
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94 public static final int LIMIT = 2;
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95
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96 @Specialization(limit = "LIMIT", guards = "value == cachedValue")
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97 static int do1(int value, @Cached("value") int cachedValue) {
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98 return cachedValue;
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99 }
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100 }
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101
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102 @Test
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103 public void testLocalLimit() {
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104 CallTarget root = createCallTarget(LocalLimitTestFactory.getInstance());
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105 assertEquals(42, root.call(42));
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106 assertEquals(43, root.call(43));
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107 try {
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108 root.call(44);
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109 fail();
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110 } catch (UnsupportedSpecializationException e) {
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111 }
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112 }
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113
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114 @NodeChild
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115 static class LocalLimitTest extends ValueNode {
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116
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117 protected int localLimit = 2;
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118
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119 @Specialization(limit = "localLimit", guards = "value == cachedValue")
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120 static int do1(int value, @Cached("value") int cachedValue) {
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121 return cachedValue;
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122 }
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123 }
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124
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125 @Test
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126 public void testMethodLimit() {
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127 MethodLimitTest.invocations = 0;
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128 CallTarget root = createCallTarget(MethodLimitTestFactory.getInstance());
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129 assertEquals(42, root.call(42));
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130 assertEquals(43, root.call(43));
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131 try {
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132 root.call(44);
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133 fail();
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134 } catch (UnsupportedSpecializationException e) {
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135 }
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136 assertEquals(3, MethodLimitTest.invocations);
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137 }
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138
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139 @NodeChild
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140 static class MethodLimitTest extends ValueNode {
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141
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142 static int invocations = 0;
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143
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144 @Specialization(limit = "calculateLimitFor(cachedValue, invocations)", guards = "value == cachedValue")
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145 static int do1(int value, @Cached("value") int cachedValue) {
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146 return cachedValue;
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147 }
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148
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149 int calculateLimitFor(int cachedValue, int boundField) {
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150 invocations = boundField + 1;
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151 return 2;
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152 }
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153
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154 }
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155
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156 @NodeChild
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157 static class LimitErrorTest1 extends ValueNode {
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158 @ExpectError("The limit expression has no effect.%")
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159 @Specialization(limit = "4")
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160 static int do1(int value) {
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161 return value;
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162 }
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163 }
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164
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165 @NodeChild
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166 static class LimitErrorTest2 extends ValueNode {
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167 public static final Object CONSTANT = new Object();
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168
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169 @ExpectError("Incompatible return type Object. Limit expressions must return int.")
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170 @Specialization(limit = "CONSTANT", guards = "value == cachedValue")
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171 static int do1(int value, @Cached("value") int cachedValue) {
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172 return value;
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173 }
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174 }
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175
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176 @NodeChild
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177 static class LimitErrorTest3 extends ValueNode {
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178
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179 public static final Object CONSTANT = new Object();
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180
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181 @ExpectError("Limit expressions must not bind dynamic parameter values.")
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182 @Specialization(limit = "value", guards = "value == cachedValue")
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183 static int do1(int value, @Cached("value") int cachedValue) {
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184 return value;
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185 }
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186 }
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187
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188 }