1 /* 2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.core.test; 26 27 import org.graalvm.compiler.debug.DebugContext; 28 import org.graalvm.compiler.nodes.StructuredGraph; 29 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; 30 import org.graalvm.compiler.nodes.spi.CoreProviders; 31 import org.graalvm.compiler.phases.common.CanonicalizerPhase; 32 import org.junit.Test; 33 34 /** 35 * In the following tests, the scalar type system of the compiler should be complete enough to see 36 * the relation between the different conditions. 37 */ 38 public class ScalarTypeSystemTest extends GraalCompilerTest { 39 40 public static int referenceSnippet1(int a) { 41 if (a > 0) { 42 return 1; 43 } else { 44 return 2; 45 } 46 } 47 48 @Test(expected = AssertionError.class) 49 public void test1() { 50 test("test1Snippet", "referenceSnippet1"); 51 } 52 53 public static int test1Snippet(int a) { 54 if (a > 0) { 55 if (a > -1) { 56 return 1; 57 } else { 58 return 3; 59 } 60 } else { 61 return 2; 62 } 63 } 64 65 @Test(expected = AssertionError.class) 66 public void test2() { 67 test("test2Snippet", "referenceSnippet1"); 68 } 69 70 public static int test2Snippet(int a) { 71 if (a > 0) { 72 if (a == -15) { 73 return 3; 74 } else { 75 return 1; 76 } 77 } else { 78 return 2; 79 } 80 } 81 82 @Test(expected = AssertionError.class) 83 public void test3() { 84 test("test3Snippet", "referenceSnippet2"); 85 } 86 87 public static int referenceSnippet2(int a, int b) { 88 if (a > b) { 89 return 1; 90 } else { 91 return 2; 92 } 93 } 94 95 public static int test3Snippet(int a, int b) { 96 if (a > b) { 97 if (a == b) { 98 return 3; 99 } else { 100 return 1; 101 } 102 } else { 103 return 2; 104 } 105 } 106 107 public static int referenceSnippet3(int a, int b) { 108 if (a == b) { 109 return 1; 110 } else { 111 return 2; 112 } 113 } 114 115 @Test(expected = AssertionError.class) 116 public void test6() { 117 test("test6Snippet", "referenceSnippet3"); 118 } 119 120 public static int test6Snippet(int a, int b) { 121 if (a == b) { 122 if (a == b + 1) { 123 return 3; 124 } else { 125 return 1; 126 } 127 } else { 128 return 2; 129 } 130 } 131 132 private void test(final String snippet, final String referenceSnippet) { 133 // No debug scope to reduce console noise for @Test(expected = ...) tests 134 StructuredGraph graph = parseEager(snippet, AllowAssumptions.NO); 135 graph.getDebug().dump(DebugContext.BASIC_LEVEL, graph, "Graph"); 136 CoreProviders context = getProviders(); 137 new CanonicalizerPhase().apply(graph, context); 138 StructuredGraph referenceGraph = parseEager(referenceSnippet, AllowAssumptions.NO); 139 assertEquals(referenceGraph, graph); 140 } 141 }