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comparison test/compiler/6769124/TestDeoptInt6769124.java @ 1060:323bd24c6520

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6769124: various 64-bit fixes for c1 Reviewed-by: never
author roland
date Mon, 02 Nov 2009 11:17:55 +0100
parents
children c18cbe5936b8
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1059:389049f3f393 1060:323bd24c6520
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 }