|
1060
|
1 /*
|
|
|
2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
|
21 * have any questions.
|
|
|
22 *
|
|
|
23 */
|
|
|
24
|
|
|
25 /**
|
|
|
26 * @test
|
|
|
27 * @bug 6769124
|
|
|
28 * @summary int value might not be correctly decoded on deopt with c1 on 64 bit
|
|
|
29 *
|
|
|
30 * @run main/othervm -Xcomp -XX:CompileOnly=TestDeoptInt6769124.m TestDeoptInt6769124
|
|
|
31 */
|
|
|
32
|
|
|
33 public class TestDeoptInt6769124 {
|
|
|
34
|
|
|
35 static class A {
|
|
|
36 volatile int vl;
|
|
|
37 A(int v) {
|
|
|
38 vl = v;
|
|
|
39 }
|
|
|
40 }
|
|
|
41
|
|
|
42 static void m(int b) {
|
|
|
43 A a = new A(10);
|
|
|
44 int c;
|
|
|
45 c = b + a.vl; //accessing volatile field of class not loaded at compile time forces a deopt
|
|
|
46 if(c != 20) {
|
|
|
47 System.out.println("a (= " + a.vl + ") + b (= " + b + ") = c (= " + c + ") != 20");
|
|
|
48 throw new InternalError();
|
|
|
49 }
|
|
|
50 }
|
|
|
51
|
|
|
52 public static void main(String[] args) {
|
|
|
53 m(10);
|
|
|
54 }
|
|
|
55
|
|
|
56 }
|
