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annotate graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/CachedTest.java @ 19289:62c43fcf5be2

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Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
author Christian Humer <christian.humer@gmail.com>
date Tue, 03 Feb 2015 15:07:07 +0100
parents
children 4cba24bef2ee
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62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
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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.*;
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26 import static org.junit.Assert.*;
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27
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28 import org.junit.*;
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29
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30 import com.oracle.truffle.api.*;
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31 import com.oracle.truffle.api.dsl.*;
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32 import com.oracle.truffle.api.dsl.test.CachedTestFactory.BoundCacheFactory;
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33 import com.oracle.truffle.api.dsl.test.CachedTestFactory.BoundCacheOverflowFactory;
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34 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestBoundCacheOverflowContainsFactory;
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35 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCacheFieldFactory;
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36 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCacheMethodFactory;
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37 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestCacheNodeFieldFactory;
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38 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestGuardWithCachedAndDynamicParameterFactory;
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39 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestGuardWithJustCachedParameterFactory;
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40 import com.oracle.truffle.api.dsl.test.CachedTestFactory.TestMultipleCachesFactory;
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41 import com.oracle.truffle.api.dsl.test.CachedTestFactory.UnboundCacheFactory;
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42 import com.oracle.truffle.api.dsl.test.TypeSystemTest.ValueNode;
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43
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44 @SuppressWarnings("unused")
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45 public class CachedTest {
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46
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47 @Test
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48 public void testUnboundCache() {
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49 CallTarget root = createCallTarget(UnboundCacheFactory.getInstance());
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50 assertEquals(42, root.call(42));
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51 assertEquals(42, root.call(43));
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52 assertEquals(42, root.call(44));
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53 }
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54
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55 @NodeChild
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56 static class UnboundCache extends ValueNode {
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57 @Specialization
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58 static int do1(int value, @Cached("value") int cachedValue) {
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59 return cachedValue;
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60 }
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61 }
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62
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63 @Test
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64 public void testBoundCache() {
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65 CallTarget root = createCallTarget(BoundCacheFactory.getInstance());
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66 assertEquals(42, root.call(42));
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67 assertEquals(43, root.call(43));
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68 assertEquals(44, root.call(44));
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69 try {
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70 root.call(45);
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71 fail();
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72 } catch (UnsupportedSpecializationException e) {
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73 }
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74 }
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75
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76 @NodeChild
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77 static class BoundCache extends ValueNode {
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78
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79 @Specialization(guards = "value == cachedValue", limit = "3")
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80 static int do1(int value, @Cached("value") int cachedValue) {
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81 return cachedValue;
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82 }
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83
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84 }
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85
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86 @Test
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87 public void testBoundCacheOverflow() {
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88 CallTarget root = createCallTarget(BoundCacheOverflowFactory.getInstance());
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89 assertEquals(42, root.call(42));
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90 assertEquals(43, root.call(43));
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91 assertEquals(-1, root.call(44));
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92 assertEquals(42, root.call(42));
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93 assertEquals(43, root.call(43));
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94 assertEquals(-1, root.call(44));
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95 }
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96
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97 @NodeChild
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98 static class BoundCacheOverflow extends ValueNode {
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99
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100 @Specialization(guards = "value == cachedValue", limit = "2")
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101 static int do1(int value, @Cached("value") int cachedValue) {
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102 return cachedValue;
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103 }
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104
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105 @Specialization
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106 static int do2(int value) {
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107 return -1;
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108 }
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109
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110 }
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111
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112 @Test
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113 public void testBoundCacheOverflowContains() {
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114 CallTarget root = createCallTarget(TestBoundCacheOverflowContainsFactory.getInstance());
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115 assertEquals(42, root.call(42));
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116 assertEquals(43, root.call(43));
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117 assertEquals(-1, root.call(44));
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118 assertEquals(-1, root.call(42));
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119 assertEquals(-1, root.call(43));
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120 assertEquals(-1, root.call(44));
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121 }
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122
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123 @NodeChild
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124 static class TestBoundCacheOverflowContains extends ValueNode {
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125
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126 @Specialization(guards = "value == cachedValue", limit = "2")
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127 static int do1(int value, @Cached("value") int cachedValue) {
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128 return cachedValue;
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129 }
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130
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131 @Specialization(contains = "do1")
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132 static int do2(int value) {
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133 return -1;
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134 }
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135
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136 }
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137
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138 @Test
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139 public void testCacheField() {
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140 CallTarget root = createCallTarget(TestCacheFieldFactory.getInstance());
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141 assertEquals(3, root.call(42));
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142 assertEquals(3, root.call(43));
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143 }
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144
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145 @NodeChild
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146 static class TestCacheField extends ValueNode {
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147
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148 protected int field = 3;
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149
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150 @Specialization()
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151 static int do1(int value, @Cached("field") int cachedValue) {
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152 return cachedValue;
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153 }
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154
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155 }
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156
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157 @Test
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158 public void testCacheNodeField() {
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159 CallTarget root = createCallTarget(TestCacheNodeFieldFactory.getInstance(), 21);
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160 assertEquals(21, root.call(42));
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161 assertEquals(21, root.call(43));
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162 }
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163
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164 @NodeChild
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165 @NodeField(name = "field", type = int.class)
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166 static class TestCacheNodeField extends ValueNode {
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167
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168 @Specialization
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169 static int do1(int value, @Cached("field") int cachedValue) {
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170 return cachedValue;
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171 }
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172
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173 }
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174
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175 @Test
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176 public void testCacheMethod() {
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177 TestCacheMethod.invocations = 0;
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178 CallTarget root = createCallTarget(TestCacheMethodFactory.getInstance());
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179 assertEquals(42, root.call(42));
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180 assertEquals(42, root.call(43));
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181 assertEquals(42, root.call(44));
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182 assertEquals(1, TestCacheMethod.invocations);
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183 }
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184
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185 @NodeChild
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186 static class TestCacheMethod extends ValueNode {
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187
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188 static int invocations = 0;
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189
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190 @Specialization
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191 static int do1(int value, @Cached("someMethod(value)") int cachedValue) {
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192 return cachedValue;
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193 }
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194
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195 static int someMethod(int value) {
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196 invocations++;
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197 return value;
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198 }
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199
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200 }
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201
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202 @Test
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203 public void testGuardWithJustCachedParameter() {
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204 TestGuardWithJustCachedParameter.invocations = 0;
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205 CallTarget root = createCallTarget(TestGuardWithJustCachedParameterFactory.getInstance());
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206 assertEquals(42, root.call(42));
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207 assertEquals(42, root.call(43));
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208 assertEquals(42, root.call(44));
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209 // guards with just cached parameters are just invoked on the slow path
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210 assertEquals(assertionsEnabled() ? 4 : 1, TestGuardWithJustCachedParameter.invocations);
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211 }
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212
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213 @NodeChild
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214 static class TestGuardWithJustCachedParameter extends ValueNode {
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215
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216 static int invocations = 0;
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217
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218 @Specialization(guards = "someMethod(cachedValue)")
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219 static int do1(int value, @Cached("value") int cachedValue) {
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220 return cachedValue;
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221 }
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222
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223 static boolean someMethod(int value) {
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224 invocations++;
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225 return true;
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226 }
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227
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228 }
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229
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230 @Test
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231 public void testGuardWithCachedAndDynamicParameter() {
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232 TestGuardWithCachedAndDynamicParameter.cachedMethodInvocations = 0;
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233 TestGuardWithCachedAndDynamicParameter.dynamicMethodInvocations = 0;
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234 CallTarget root = createCallTarget(TestGuardWithCachedAndDynamicParameterFactory.getInstance());
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235 assertEquals(42, root.call(42));
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236 assertEquals(42, root.call(43));
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237 assertEquals(42, root.call(44));
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238 // guards with just cached parameters are just invoked on the slow path
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239 assertEquals(assertionsEnabled() ? 4 : 1, TestGuardWithCachedAndDynamicParameter.cachedMethodInvocations);
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240 assertEquals(4, TestGuardWithCachedAndDynamicParameter.dynamicMethodInvocations);
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241 }
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242
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243 @NodeChild
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244 static class TestGuardWithCachedAndDynamicParameter extends ValueNode {
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245
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246 static int cachedMethodInvocations = 0;
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247 static int dynamicMethodInvocations = 0;
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248
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249 @Specialization(guards = {"dynamicMethod(value)", "cachedMethod(cachedValue)"})
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250 static int do1(int value, @Cached("value") int cachedValue) {
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251 return cachedValue;
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252 }
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253
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254 static boolean cachedMethod(int value) {
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255 cachedMethodInvocations++;
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256 return true;
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257 }
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258
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259 static boolean dynamicMethod(int value) {
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260 dynamicMethodInvocations++;
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261 return true;
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262 }
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263
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264 }
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265
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266 @NodeChild
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267 static class TestMultipleCaches extends ValueNode {
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268
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269 @Specialization
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270 static int do1(int value, @Cached("value") int cachedValue1, @Cached("value") int cachedValue2) {
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271 return cachedValue1 + cachedValue2;
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272 }
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273
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274 }
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275
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276 @Test
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277 public void testMultipleCaches() {
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278 CallTarget root = createCallTarget(TestMultipleCachesFactory.getInstance());
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279 assertEquals(42, root.call(21));
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280 assertEquals(42, root.call(22));
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281 assertEquals(42, root.call(23));
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282 }
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283
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284 @NodeChild
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285 static class CachedError1 extends ValueNode {
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286 @Specialization
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287 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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288 @Cached("value") double cachedValue) {
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289 return value;
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290 }
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291 }
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292
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293 @NodeChild
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294 static class CachedError2 extends ValueNode {
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295
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296 // caches are not allowed to make backward references
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297
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298 @Specialization
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299 static int do1(int value,
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300 @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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301 @Cached("value") int cachedValue2) {
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302 return cachedValue1 + cachedValue2;
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303 }
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304
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305 }
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306
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307 @NodeChild
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308 static class CachedError3 extends ValueNode {
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309
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310 // cyclic dependency between cached expressions
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311 @Specialization
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312 static int do1(int value,
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313 @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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314 @Cached("cachedValue1") int cachedValue2) {
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315 return cachedValue1 + cachedValue2;
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316 }
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317
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318 }
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319
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320 }