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annotate graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/LimitTest.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
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19289
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.LimitTestFactory.ConstantLimitTestFactory;
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33 import com.oracle.truffle.api.dsl.test.LimitTestFactory.DefaultLimit3TestFactory;
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34 import com.oracle.truffle.api.dsl.test.LimitTestFactory.LocalLimitTestFactory;
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35 import com.oracle.truffle.api.dsl.test.LimitTestFactory.MethodLimitTestFactory;
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36 import com.oracle.truffle.api.dsl.test.TypeSystemTest.ValueNode;
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37
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38 @SuppressWarnings("unused")
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39 public class LimitTest {
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40
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41 @Test
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42 public void testDefaultLimit3() {
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43 CallTarget root = createCallTarget(DefaultLimit3TestFactory.getInstance());
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44 assertEquals(42, root.call(42));
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45 assertEquals(43, root.call(43));
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46 assertEquals(44, root.call(44));
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47 try {
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48 root.call(45);
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49 fail();
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50 } catch (UnsupportedSpecializationException e) {
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51 }
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52 }
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53
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54 @NodeChild
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55 static class DefaultLimit3Test extends ValueNode {
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56 @Specialization(guards = "value == cachedValue")
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57 static int do1(int value, @Cached("value") int cachedValue) {
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58 return cachedValue;
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59 }
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60 }
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61
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62 @Test
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63 public void testConstantLimit() {
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64 CallTarget root = createCallTarget(ConstantLimitTestFactory.getInstance());
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65 assertEquals(42, root.call(42));
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66 assertEquals(43, root.call(43));
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67 try {
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68 root.call(44);
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69 fail();
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70 } catch (UnsupportedSpecializationException e) {
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71 }
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72 }
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73
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74 @NodeChild
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75 static class ConstantLimitTest extends ValueNode {
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76
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77 public static final int LIMIT = 2;
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78
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79 @Specialization(limit = "LIMIT", guards = "value == cachedValue")
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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 @Test
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86 public void testLocalLimit() {
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87 CallTarget root = createCallTarget(LocalLimitTestFactory.getInstance());
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88 assertEquals(42, root.call(42));
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89 assertEquals(43, root.call(43));
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90 try {
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91 root.call(44);
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92 fail();
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93 } catch (UnsupportedSpecializationException e) {
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94 }
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95 }
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96
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97 @NodeChild
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98 static class LocalLimitTest extends ValueNode {
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99
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100 protected int localLimit = 2;
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101
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102 @Specialization(limit = "localLimit", guards = "value == cachedValue")
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103 static int do1(int value, @Cached("value") int cachedValue) {
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104 return cachedValue;
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105 }
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106 }
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107
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108 @Test
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109 public void testMethodLimit() {
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110 MethodLimitTest.invocations = 0;
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111 CallTarget root = createCallTarget(MethodLimitTestFactory.getInstance());
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112 assertEquals(42, root.call(42));
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113 assertEquals(43, root.call(43));
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114 try {
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115 root.call(44);
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116 fail();
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117 } catch (UnsupportedSpecializationException e) {
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118 }
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119 assertEquals(3, MethodLimitTest.invocations);
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120 }
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121
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122 @NodeChild
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123 static class MethodLimitTest extends ValueNode {
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124
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125 static int invocations = 0;
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126
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127 @Specialization(limit = "calculateLimitFor(cachedValue, invocations)", guards = "value == cachedValue")
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128 static int do1(int value, @Cached("value") int cachedValue) {
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129 return cachedValue;
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130 }
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131
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132 int calculateLimitFor(int cachedValue, int boundField) {
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133 invocations = boundField + 1;
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134 return 2;
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135 }
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136
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137 }
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138
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139 @NodeChild
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140 static class LimitErrorTest1 extends ValueNode {
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141 @ExpectError("The limit expression has no effect.%")
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142 @Specialization(limit = "4")
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143 static int do1(int value) {
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144 return value;
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145 }
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146 }
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147
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148 @NodeChild
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149 static class LimitErrorTest2 extends ValueNode {
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150 public static final Object CONSTANT = new Object();
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151
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152 @ExpectError("Incompatible return type Object. Limit expressions must return int.")
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153 @Specialization(limit = "CONSTANT", guards = "value == cachedValue")
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154 static int do1(int value, @Cached("value") int cachedValue) {
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155 return value;
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156 }
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157 }
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158
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159 @NodeChild
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160 static class LimitErrorTest3 extends ValueNode {
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161
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162 public static final Object CONSTANT = new Object();
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163
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164 @ExpectError("Limit expressions must not bind dynamic parameter values.")
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165 @Specialization(limit = "value", guards = "value == cachedValue")
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166 static int do1(int value, @Cached("value") int cachedValue) {
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167 return value;
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168 }
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169 }
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170
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171 }