1 /* 2 * Copyright (c) 2011, 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 java.util.EnumSet; 26 27 import jdk.vm.ci.meta.DeoptimizationReason; 28 29 import org.junit.Test; 30 31 import org.graalvm.compiler.jtt.JTTTest; 32 33 public class ConditionalElimination02 extends JTTTest { 34 35 private static Object o = null; 36 37 private static class A { 38 39 A(int y) { 40 this.y = y; 41 } 42 43 int y; 44 } 45 46 public int test(A a, boolean isNull, boolean isVeryNull) { 47 if (o == null) { 48 if (!isNull) { 49 if (o == null) { 50 return a.y; 51 } 52 } 53 if (!isVeryNull) { 54 if (o == null) { 55 return a.y; 56 } 57 } 58 } 59 return -1; 60 } 61 62 @Test 63 public void run0() throws Throwable { 64 runTest(EnumSet.of(DeoptimizationReason.NullCheckException), "test", new A(5), false, false); 65 } 66 67 @Test 68 public void run1() throws Throwable { 69 runTest(EnumSet.of(DeoptimizationReason.NullCheckException), "test", new Object[]{null, true, true}); 70 } 71 72 }