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 array length operations. 31 */ 32 public class ArrayLength01 extends JTTTest { 33 34 public static final int SIZE = 8; 35 public static final byte[] arr = new byte[5]; 36 37 public static int test(int arg) { 38 if (arg == 0) { 39 return arr.length; 40 } 41 if (arg == 1) { 42 return new byte[6].length; 43 } 44 if (arg == 2) { 45 return new Object[7].length; 46 } 47 if (arg == 3) { 48 return new Class<?>[SIZE][].length; 49 } 50 if (arg == 4) { 51 return new int[arg].length; 52 } 53 return 0; 54 } 55 56 @Test 57 public void run0() throws Throwable { 58 runTest("test", 0); 59 } 60 61 @Test 62 public void run1() throws Throwable { 63 runTest("test", 1); 64 } 65 66 @Test 67 public void run2() throws Throwable { 68 runTest("test", 2); 69 } 70 71 @Test 72 public void run3() throws Throwable { 73 runTest("test", 3); 74 } 75 76 @Test 77 public void run4() throws Throwable { 78 runTest("test", 4); 79 } 80 81 }