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annotate graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/CompareCanonicalizerTest.java @ 9111:0298d8a0caf5

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added JUnit 4.11 support to ProfilingInfoTest
author Christian Haeubl <haeubl@ssw.jku.at>
date Thu, 04 Apr 2013 11:57:04 +0200
parents 961ad124cb21
children 6d376d09880b
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.compiler.test;
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24
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25 import static org.junit.Assert.*;
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26
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27 import org.junit.*;
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28
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29 import com.oracle.graal.api.code.*;
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30 import com.oracle.graal.nodes.*;
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31 import com.oracle.graal.nodes.calc.*;
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32 import com.oracle.graal.phases.common.*;
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33
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34 public class CompareCanonicalizerTest extends GraalCompilerTest {
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35
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36 private StructuredGraph getCanonicalizedGraph(String name) {
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37 StructuredGraph graph = parse(name);
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38 new CanonicalizerPhase(runtime(), null).apply(graph);
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39 return graph;
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40 }
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41
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42 private static ValueNode getResult(StructuredGraph graph) {
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43 assertTrue(graph.start().next() instanceof ReturnNode);
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44 ReturnNode ret = (ReturnNode) graph.start().next();
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45 return ret.result();
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46 }
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47
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48 @Test
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49 public void testCanonicalComparison() {
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50 StructuredGraph referenceGraph = parse("referenceCanonicalComparison");
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51 for (int i = 1; i < 4; i++) {
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52 StructuredGraph graph = parse("canonicalCompare" + i);
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53 assertEquals(referenceGraph, graph);
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54 }
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55 Assumptions assumptions = new Assumptions(false);
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56 new CanonicalizerPhase(runtime(), assumptions).apply(referenceGraph);
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57 for (int i = 1; i < 4; i++) {
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58 StructuredGraph graph = getCanonicalizedGraph("canonicalCompare" + i);
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59 assertEquals(referenceGraph, graph);
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60 }
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61 }
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62
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63 public static int referenceCanonicalComparison(int a, int b) {
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64 if (a < b) {
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65 return 1;
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66 } else {
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67 return 2;
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68 }
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69 }
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70
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71 public static int canonicalCompare1(int a, int b) {
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72 if (a >= b) {
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73 return 2;
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74 } else {
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75 return 1;
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76 }
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77 }
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78
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79 public static int canonicalCompare2(int a, int b) {
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80 if (b > a) {
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81 return 1;
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82 } else {
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83 return 2;
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84 }
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85 }
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86
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87 public static int canonicalCompare3(int a, int b) {
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88 if (b <= a) {
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89 return 2;
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90 } else {
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91 return 1;
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92 }
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93 }
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94
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95 @Test
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96 public void testIntegerTest() {
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97 for (int i = 1; i <= 4; i++) {
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98 StructuredGraph graph = getCanonicalizedGraph("integerTest" + i);
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99
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100 ValueNode result = getResult(graph);
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101 assertTrue(result instanceof ConditionalNode);
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102 ConditionalNode mat = (ConditionalNode) result;
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103 assertTrue(mat.condition() instanceof IntegerTestNode);
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104 IntegerTestNode test = (IntegerTestNode) mat.condition();
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105 LocalNode local0 = graph.getLocal(0);
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106 LocalNode local1 = graph.getLocal(1);
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107 assertTrue((test.x() == local0 && test.y() == local1) || (test.x() == local1 && test.y() == local0));
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108 }
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109 }
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110
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111 public static boolean integerTest1(int x, int y) {
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112 return (x & y) == 0;
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113 }
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114
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115 public static boolean integerTest2(long x, long y) {
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116 return 0 == (x & y);
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117 }
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118
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119 public static boolean integerTest3(long x, long y) {
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120 int c = 5;
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121 return (c - 5) == (x & y);
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122 }
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123
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124 public static boolean integerTest4(int x, int y) {
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125 int c = 10;
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126 return (x & y) == (10 - c);
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127 }
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128
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129 @Test
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130 public void testIntegerTestCanonicalization() {
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131 ValueNode result = getResult(getCanonicalizedGraph("integerTestCanonicalization1"));
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132 assertTrue(result.isConstant() && result.asConstant().asLong() == 1);
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133 result = getResult(getCanonicalizedGraph("integerTestCanonicalization2"));
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134 assertTrue(result.isConstant() && result.asConstant().asLong() == 1);
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135 result = getResult(getCanonicalizedGraph("integerTestCanonicalization3"));
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136 assertTrue(result instanceof ConditionalNode);
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137 }
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138
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139 public static int integerTestCanonicalization1(boolean b) {
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140 int x = b ? 128 : 256;
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141 if ((x & 8) == 0) {
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142 return 1;
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143 } else {
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144 return 2;
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145 }
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146 }
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147
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148 public static int integerTestCanonicalization2(boolean b) {
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149 int x = b ? 128 : 256;
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150 int y = b ? 32 : 64;
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151 if ((x & y) == 0) {
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152 return 1;
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153 } else {
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154 return 2;
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155 }
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156 }
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157
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158 public static int integerTestCanonicalization3(boolean b) {
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159 int x = b ? 128 : 64;
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160 int y = b ? 32 : 64;
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161 if ((x & y) == 0) {
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162 return 1;
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163 } else {
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164 return 2;
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165 }
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166 }
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167
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168 }