1 /* 2 * Copyright (c) 2010, 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 * @test 26 * @bug 6973329 27 * @summary C2 with Zero based COOP produces code with broken anti-dependency on x86 28 * 29 * @run main/othervm -Xbatch -Xcomp 30 * -XX:CompileCommand=compileonly,compiler.c2.Test6973329::* 31 * compiler.c2.Test6973329 32 */ 33 34 package compiler.c2; 35 36 public class Test6973329 { 37 static class A { 38 A next; 39 int n; 40 41 public int get_n() { 42 return n + 1; 43 } 44 } 45 46 A a; 47 48 void test(A new_next) { 49 A prev_next = a.next; 50 a.next = new_next; 51 if (prev_next == null) { 52 a.n = a.get_n(); 53 } 54 } 55 56 public static void main(String args[]) { 57 Test6973329 t = new Test6973329(); 58 t.a = new A(); 59 t.a.n = 1; 60 t.test(new A()); 61 if (t.a.n != 2) { 62 System.out.println("Wrong value: " + t.a.n + " expected: 2"); 63 System.exit(97); 64 } 65 } 66 } 67