1 /* 2 * Copyright (c) 2009, 2012, 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 package org.graalvm.compiler.jtt.optimize; 24 25 import org.junit.Test; 26 27 import org.graalvm.compiler.jtt.JTTTest; 28 29 /* 30 * Tests constant folding of integer operations. 31 */ 32 public class VN_Field02 extends JTTTest { 33 34 private static class TestClass { 35 int field = 9; 36 } 37 38 private static boolean cond = true; 39 static final TestClass object = new TestClass(); 40 41 public static int test(int arg) { 42 if (arg == 0) { 43 return test1(); 44 } 45 if (arg == 1) { 46 return test2(); 47 } 48 if (arg == 2) { 49 return test3(); 50 } 51 return 0; 52 } 53 54 private static int test1() { 55 TestClass a = object; 56 int c = a.field; 57 if (cond) { 58 return c + a.field; 59 } 60 return 0; 61 } 62 63 private static int test2() { 64 TestClass a = object; 65 if (cond) { 66 TestClass b = object; 67 return a.field + b.field; 68 } 69 return 0; 70 } 71 72 @SuppressWarnings("all") 73 private static int test3() { 74 TestClass a = null; 75 if (cond) { 76 TestClass b = null; 77 return a.field + b.field; 78 } 79 return 0; 80 } 81 82 @Test 83 public void run0() throws Throwable { 84 runTest("test", 0); 85 } 86 87 @Test 88 public void run1() throws Throwable { 89 runTest("test", 1); 90 } 91 92 @Test 93 public void run2() throws Throwable { 94 runTest("test", 2); 95 } 96 97 }