test/compiler/6796786/Test6796786.java

changeset 2870
f1d6640088a1
child 2879
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equal deleted inserted replaced
2868:2e038ad0c1d0 2870:f1d6640088a1
1 /*
2 * Copyright (c) 2011, 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 /**
26 * @test
27 * @bug 6796786
28 * @summary invalid FP identity transform - (a - b) -> b - a
29 *
30 * @run main Test6796786
31 */
32
33 public class Test6796786 {
34 static volatile float d1;
35 static volatile float d2;
36 static float zero;
37
38 public static void main(String[] args) {
39 int total = 0;
40 for (int i = 0; i < 100000; i++) {
41 if (Float.floatToRawIntBits(- (d1 - d1)) == Float.floatToRawIntBits(0.0f)) {
42 total++;
43 }
44 }
45 if (total != 100000) {
46 throw new InternalError();
47 }
48 }
49 }

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