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annotate truffle/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/CachedTest.java @ 22548:6b76a24fffbd default tip

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author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Thu, 14 Jan 2016 14:20:57 +0100
parents 687bc1dda125
children
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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.assertionsEnabled;
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26 import static com.oracle.truffle.api.dsl.test.TestHelper.createCallTarget;
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27 import static org.junit.Assert.assertEquals;
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28 import static org.junit.Assert.fail;
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29
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30 import org.junit.Test;
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31
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32 import com.oracle.truffle.api.CallTarget;
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33 import com.oracle.truffle.api.dsl.Cached;
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34 import com.oracle.truffle.api.dsl.NodeChild;
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35 import com.oracle.truffle.api.dsl.NodeChildren;
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36 import com.oracle.truffle.api.dsl.NodeField;
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37 import com.oracle.truffle.api.dsl.Specialization;
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38 import com.oracle.truffle.api.dsl.UnsupportedSpecializationException;
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39 import com.oracle.truffle.api.dsl.test.CachedTestFactory.BoundCacheFactory;
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40 import com.oracle.truffle.api.dsl.test.CachedTestFactory.BoundCacheOverflowFactory;
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41 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestBoundCacheOverflowContainsFactory;
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42 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCacheFieldFactory;
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43 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCacheMethodFactory;
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44 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCacheNodeFieldFactory;
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45 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCachesOrderFactory;
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46 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestGuardWithCachedAndDynamicParameterFactory;
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47 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestGuardWithJustCachedParameterFactory;
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48 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestMultipleCachesFactory;
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49 import com.oracle.truffle.api.dsl.test.CachedTestFactory.UnboundCacheFactory;
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50 import com.oracle.truffle.api.dsl.test.TypeSystemTest.ValueNode;
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51
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52 @SuppressWarnings("unused")
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53 public class CachedTest {
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54
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55 @Test
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56 public void testUnboundCache() {
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57 CallTarget root = createCallTarget(UnboundCacheFactory.getInstance());
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58 assertEquals(42, root.call(42));
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59 assertEquals(42, root.call(43));
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60 assertEquals(42, root.call(44));
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61 }
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62
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63 @NodeChild
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64 static class UnboundCache extends ValueNode {
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65 @Specialization
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66 static int do1(int value, @Cached("value") int cachedValue) {
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67 return cachedValue;
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68 }
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69 }
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70
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71 @Test
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72 public void testBoundCache() {
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73 CallTarget root = createCallTarget(BoundCacheFactory.getInstance());
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74 assertEquals(42, root.call(42));
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75 assertEquals(43, root.call(43));
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76 assertEquals(44, root.call(44));
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77 try {
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78 root.call(45);
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79 fail();
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80 } catch (UnsupportedSpecializationException e) {
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81 }
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82 }
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83
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84 @NodeChild
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85 static class BoundCache extends ValueNode {
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86
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87 @Specialization(guards = "value == cachedValue", limit = "3")
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88 static int do1(int value, @Cached("value") int cachedValue) {
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89 return cachedValue;
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90 }
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91
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92 }
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93
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94 @Test
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95 public void testBoundCacheOverflow() {
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96 CallTarget root = createCallTarget(BoundCacheOverflowFactory.getInstance());
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97 assertEquals(42, root.call(42));
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98 assertEquals(43, root.call(43));
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99 assertEquals(-1, root.call(44));
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100 assertEquals(42, root.call(42));
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101 assertEquals(43, root.call(43));
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102 assertEquals(-1, root.call(44));
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103 }
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104
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105 @NodeChild
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106 static class BoundCacheOverflow extends ValueNode {
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107
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108 @Specialization(guards = "value == cachedValue", limit = "2")
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109 static int do1(int value, @Cached("value") int cachedValue) {
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110 return cachedValue;
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111 }
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112
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113 @Specialization
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114 static int do2(int value) {
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115 return -1;
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116 }
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117
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118 }
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119
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120 @Test
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121 public void testBoundCacheOverflowContains() {
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122 CallTarget root = createCallTarget(TestBoundCacheOverflowContainsFactory.getInstance());
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123 assertEquals(42, root.call(42));
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124 assertEquals(43, root.call(43));
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125 assertEquals(-1, root.call(44));
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126 assertEquals(-1, root.call(42));
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127 assertEquals(-1, root.call(43));
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128 assertEquals(-1, root.call(44));
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129 }
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130
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131 @NodeChild
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132 static class TestBoundCacheOverflowContains extends ValueNode {
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133
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134 @Specialization(guards = "value == cachedValue", limit = "2")
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135 static int do1(int value, @Cached("value") int cachedValue) {
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136 return cachedValue;
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137 }
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138
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139 @Specialization(contains = "do1")
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140 static int do2(int value) {
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141 return -1;
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142 }
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143
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144 }
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145
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146 @Test
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147 public void testCacheField() {
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148 CallTarget root = createCallTarget(TestCacheFieldFactory.getInstance());
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149 assertEquals(3, root.call(42));
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150 assertEquals(3, root.call(43));
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151 }
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152
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153 @NodeChild
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154 static class TestCacheField extends ValueNode {
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155
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156 protected int field = 3;
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157
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158 @Specialization()
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159 static int do1(int value, @Cached("field") int cachedValue) {
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160 return cachedValue;
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161 }
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162
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163 }
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164
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165 @Test
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166 public void testCacheNodeField() {
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167 CallTarget root = createCallTarget(TestCacheNodeFieldFactory.getInstance(), 21);
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168 assertEquals(21, root.call(42));
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169 assertEquals(21, root.call(43));
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170 }
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171
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172 @NodeChild
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173 @NodeField(name = "field", type = int.class)
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174 static class TestCacheNodeField extends ValueNode {
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175
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176 @Specialization
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177 static int do1(int value, @Cached("field") int cachedValue) {
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178 return cachedValue;
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179 }
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180
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181 }
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182
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183 @Test
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184 public void testCacheMethod() {
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185 TestCacheMethod.invocations = 0;
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186 CallTarget root = createCallTarget(TestCacheMethodFactory.getInstance());
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187 assertEquals(42, root.call(42));
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188 assertEquals(42, root.call(43));
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189 assertEquals(42, root.call(44));
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190 assertEquals(1, TestCacheMethod.invocations);
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191 }
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192
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193 @NodeChild
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194 static class TestCacheMethod extends ValueNode {
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195
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196 static int invocations = 0;
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197
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198 @Specialization
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199 static int do1(int value, @Cached("someMethod(value)") int cachedValue) {
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200 return cachedValue;
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201 }
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202
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203 static int someMethod(int value) {
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204 invocations++;
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205 return value;
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206 }
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207
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208 }
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209
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210 @Test
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211 public void testGuardWithJustCachedParameter() {
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212 TestGuardWithJustCachedParameter.invocations = 0;
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213 CallTarget root = createCallTarget(TestGuardWithJustCachedParameterFactory.getInstance());
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214 assertEquals(42, root.call(42));
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215 assertEquals(42, root.call(43));
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216 assertEquals(42, root.call(44));
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217 // guards with just cached parameters are just invoked on the slow path
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218 assertEquals(assertionsEnabled() ? 4 : 1, TestGuardWithJustCachedParameter.invocations);
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219 }
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220
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221 @NodeChild
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222 static class TestGuardWithJustCachedParameter extends ValueNode {
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223
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224 static int invocations = 0;
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225
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226 @Specialization(guards = "someMethod(cachedValue)")
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227 static int do1(int value, @Cached("value") int cachedValue) {
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228 return cachedValue;
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229 }
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230
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231 static boolean someMethod(int value) {
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232 invocations++;
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233 return true;
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234 }
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235
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236 }
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237
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238 @Test
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239 public void testGuardWithCachedAndDynamicParameter() {
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240 TestGuardWithCachedAndDynamicParameter.cachedMethodInvocations = 0;
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241 TestGuardWithCachedAndDynamicParameter.dynamicMethodInvocations = 0;
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242 CallTarget root = createCallTarget(TestGuardWithCachedAndDynamicParameterFactory.getInstance());
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243 assertEquals(42, root.call(42));
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244 assertEquals(42, root.call(43));
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245 assertEquals(42, root.call(44));
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246 // guards with just cached parameters are just invoked on the slow path
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247 assertEquals(assertionsEnabled() ? 4 : 1, TestGuardWithCachedAndDynamicParameter.cachedMethodInvocations);
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248 assertEquals(4, TestGuardWithCachedAndDynamicParameter.dynamicMethodInvocations);
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249 }
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250
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251 @NodeChild
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252 static class TestGuardWithCachedAndDynamicParameter extends ValueNode {
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253
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254 static int cachedMethodInvocations = 0;
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255 static int dynamicMethodInvocations = 0;
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256
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257 @Specialization(guards = {"dynamicMethod(value)", "cachedMethod(cachedValue)"})
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258 static int do1(int value, @Cached("value") int cachedValue) {
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259 return cachedValue;
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260 }
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261
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262 static boolean cachedMethod(int value) {
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263 cachedMethodInvocations++;
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264 return true;
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265 }
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266
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267 static boolean dynamicMethod(int value) {
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268 dynamicMethodInvocations++;
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269 return true;
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270 }
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271
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272 }
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273
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274 /*
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275 * Node should not produce any warnings in isIdentical of the generated code. Unnecessary casts
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276 * were generated for isIdentical on the fast path.
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277 */
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278 @NodeChildren({@NodeChild, @NodeChild})
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279 static class RegressionTestWarningInIsIdentical extends ValueNode {
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280
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281 @Specialization(guards = {"cachedName == name"})
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282 protected Object directAccess(String receiver, String name, //
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283 @Cached("name") String cachedName, //
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284 @Cached("create(receiver, name)") Object callHandle) {
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285 return receiver;
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286 }
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287
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288 protected static Object create(String receiver, String name) {
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289 return receiver;
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290 }
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291
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292 }
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293
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294 @NodeChild
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295 static class TestMultipleCaches extends ValueNode {
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296
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297 @Specialization
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298 static int do1(int value, @Cached("value") int cachedValue1, @Cached("value") int cachedValue2) {
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299 return cachedValue1 + cachedValue2;
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300 }
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301
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302 }
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303
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304 @Test
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305 public void testMultipleCaches() {
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306 CallTarget root = createCallTarget(TestMultipleCachesFactory.getInstance());
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307 assertEquals(42, root.call(21));
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308 assertEquals(42, root.call(22));
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309 assertEquals(42, root.call(23));
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310 }
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311
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312 @NodeChild
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313 static class TestCachedWithProfile extends ValueNode {
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314
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315 @Specialization
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316 static int do1(int value, @Cached("create()") MySubClass mySubclass) {
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317 return 42;
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318 }
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319 }
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320
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321 public static class MyClass {
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322
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323 public static MyClass create() {
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324 return new MyClass();
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325 }
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326 }
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327
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328 public static class MySubClass extends MyClass {
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329
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330 public static MySubClass create() {
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331 return new MySubClass();
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332 }
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333
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334 }
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335
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336 @NodeChild
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337 static class TestCachesOrder extends ValueNode {
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338
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339 @Specialization(guards = "boundByGuard != 0")
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340 static int do1(int value, //
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341 @Cached("get(value)") int intermediateValue, //
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342 @Cached("transform(intermediateValue)") int boundByGuard, //
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343 @Cached("new()") Object notBoundByGuards) {
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344 return intermediateValue;
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345 }
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346
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347 protected int get(int i) {
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348 return i * 2;
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349 }
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350
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351 protected int transform(int i) {
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352 return i * 3;
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353 }
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354
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355 }
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356
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357 @Test
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358 public void testCachesOrder() {
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359 CallTarget root = createCallTarget(TestCachesOrderFactory.getInstance());
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360 assertEquals(42, root.call(21));
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361 assertEquals(42, root.call(22));
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362 assertEquals(42, root.call(23));
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363 }
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364
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365 @NodeChild
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366 static class CachedError1 extends ValueNode {
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367 @Specialization
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368 static int do1(int value, @ExpectError("Incompatible return type int. The expression type must be equal to the parameter type double.")//
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369 @Cached("value") double cachedValue) {
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370 return value;
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371 }
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372 }
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373
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374 @NodeChild
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375 static class CachedError2 extends ValueNode {
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376
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377 // caches are not allowed to make backward references
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378
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379 @Specialization
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380 static int do1(int value,
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381 @ExpectError("The initializer expression of parameter 'cachedValue1' binds unitialized parameter 'cachedValue2. Reorder the parameters to resolve the problem.") @Cached("cachedValue2") int cachedValue1,
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382 @Cached("value") int cachedValue2) {
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383 return cachedValue1 + cachedValue2;
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384 }
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385
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386 }
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387
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388 @NodeChild
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389 static class CachedError3 extends ValueNode {
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390
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391 // cyclic dependency between cached expressions
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392 @Specialization
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393 static int do1(int value,
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394 @ExpectError("The initializer expression of parameter 'cachedValue1' binds unitialized parameter 'cachedValue2. Reorder the parameters to resolve the problem.") @Cached("cachedValue2") int cachedValue1,
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395 @Cached("cachedValue1") int cachedValue2) {
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396 return cachedValue1 + cachedValue2;
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397 }
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398
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399 }
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400
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401 }