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comparison test/compiler/intrinsics/mathexact/GVNTest.java @ 13077:b957c650babb

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8028207: assert(_outcnt==1) failed: not unique in compile.cpp Reviewed-by: iveresov, kvn
author rbackman
date Tue, 12 Nov 2013 14:52:48 +0100
parents
children 9949533a8623
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13076:f675976a61e7 13077:b957c650babb
1 /*
2 * Copyright (c) 2013, 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 8028207
27 * @summary Verify that GVN doesn't mess up the two addExacts
28 * @compile GVNTest.java
29 * @run main GVNTest
30 *
31 */
32
33 public class GVNTest {
34 public static int result = 0;
35 public static int value = 93;
36 public static void main(String[] args) {
37 for (int i = 0; i < 50000; ++i) {
38 result = runTest(value + i);
39 result = runTest(value + i);
40 result = runTest(value + i);
41 result = runTest(value + i);
42 result = runTest(value + i);
43 }
44 }
45
46 public static int runTest(int value) {
47 int v = value + value;
48 int sum = 0;
49 if (v < 4032) {
50 for (int i = 0; i < 1023; ++i) {
51 sum += Math.addExact(value, value);
52 }
53 } else {
54 for (int i = 0; i < 321; ++i) {
55 sum += Math.addExact(value, value);
56 }
57 }
58 return sum + v;
59 }
60 }