1 /* 2 * Copyright (c) 2011, 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.core.test; 24 25 import java.io.Serializable; 26 import java.util.ArrayList; 27 import java.util.List; 28 29 import org.junit.Test; 30 31 public class IfReorderTest extends GraalCompilerTest { 32 33 private static Object fieldA = Integer.class; 34 private static Object fieldB = Double.class; 35 36 @Test 37 public void test1() { 38 test("test1Snippet", new ArrayList<>()); 39 } 40 41 public static Object test1Snippet(Object o) { 42 /* 43 * Serializable and List are not mutually exclusive, so these two IFs should never be 44 * reordered. 45 */ 46 if (branchProbability(0.1, o instanceof Serializable)) { 47 return fieldA; 48 } 49 if (branchProbability(0.9, o instanceof List)) { 50 return fieldB; 51 } 52 return null; 53 } 54 55 }