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comparison test/compiler/6795161/Test.java @ 565:7fe62bb75bf4

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6799693: Server compiler leads to data corruption when expression throws an Exception Summary: Use merged memory state for an allocation's slow path. Reviewed-by: never
author kvn
date Thu, 05 Feb 2009 14:43:58 -0800
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children c18cbe5936b8
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564:323728917cf4 565:7fe62bb75bf4
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 6795161
28 * @summary Escape analysis leads to data corruption
29 * @run main/othervm -server -Xcomp -XX:CompileOnly=Test -XX:+DoEscapeAnalysis Test
30 */
31
32 class Test_Class_1 {
33 static String var_1;
34
35 static void badFunc(int size)
36 {
37 try {
38 for (int i = 0; i < 1; (new byte[size-i])[0] = 0, i++) {}
39 } catch (Exception e) {
40 // don't comment it out, it will lead to correct results ;)
41 //System.out.println("Got exception: " + e);
42 }
43 }
44 }
45
46 public class Test {
47 static String var_1_copy = Test_Class_1.var_1;
48
49 static byte var_check;
50
51 public static void main(String[] args)
52 {
53 var_check = 1;
54
55 Test_Class_1.badFunc(-1);
56
57 System.out.println("EATester.var_check = " + Test.var_check + " (expected 1)\n");
58 }
59 }
60