Mercurial > jdk8-mips64-public > hotspot / annotate
test/compiler/6877254/Test.java@685e959d09ea (annotated)
test/compiler/6877254/Test.java
Mon, 14 Sep 2009 09:49:54 -0700
- author
- cfang
- date
- Mon, 14 Sep 2009 09:49:54 -0700
- changeset 1420
- 685e959d09ea
- child 1613
- 648fe315b257
- permissions
- -rw-r--r--
6877254: Server vm crashes with no branches off of store slice" when run with CMS and UseSuperWord(default)
Summary: design StoreCMNode::Ideal to promote its oopStore input if the input is a MergeMem node
Reviewed-by: kvn, never
| cfang@1420 | 1 | /* |
| cfang@1420 | 2 | * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. |
| cfang@1420 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| cfang@1420 | 4 | * |
| cfang@1420 | 5 | * This code is free software; you can redistribute it and/or modify it |
| cfang@1420 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| cfang@1420 | 7 | * published by the Free Software Foundation. |
| cfang@1420 | 8 | * |
| cfang@1420 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| cfang@1420 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| cfang@1420 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| cfang@1420 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| cfang@1420 | 13 | * accompanied this code). |
| cfang@1420 | 14 | * |
| cfang@1420 | 15 | * You should have received a copy of the GNU General Public License version |
| cfang@1420 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| cfang@1420 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| cfang@1420 | 18 | * |
| cfang@1420 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| cfang@1420 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| cfang@1420 | 21 | * have any questions. |
| cfang@1420 | 22 | */ |
| cfang@1420 | 23 | |
| cfang@1420 | 24 | /** |
| cfang@1420 | 25 | * @test |
| cfang@1420 | 26 | * @bug 6877254 |
| cfang@1420 | 27 | * @summary Implement StoreCMNode::Ideal to promote its OopStore above the MergeMem |
| cfang@1420 | 28 | * |
| cfang@1420 | 29 | * @run main/othervm -server -Xcomp -XX:+UseConcMarkSweepGC Test |
| cfang@1420 | 30 | */ |
| cfang@1420 | 31 | |
| cfang@1420 | 32 | public class Test { |
| cfang@1420 | 33 | static byte var_1; |
| cfang@1420 | 34 | static String var_2 = ""; |
| cfang@1420 | 35 | static byte var_3; |
| cfang@1420 | 36 | static float var_4 = 0; |
| cfang@1420 | 37 | |
| cfang@1420 | 38 | public static void main(String[] args) { |
| cfang@1420 | 39 | int i = 0; |
| cfang@1420 | 40 | |
| cfang@1420 | 41 | for (String var_tmp = var_2; i < 11; var_1 = 0, i++) { |
| cfang@1420 | 42 | var_2 = var_2; |
| cfang@1420 | 43 | var_4 *= (var_4 *= (var_3 = 0)); |
| cfang@1420 | 44 | } |
| cfang@1420 | 45 | |
| cfang@1420 | 46 | System.out.println("var_1 = " + var_1); |
| cfang@1420 | 47 | System.out.println("var_2 = " + var_2); |
| cfang@1420 | 48 | System.out.println("var_3 = " + var_3); |
| cfang@1420 | 49 | System.out.println("var_4 = " + var_4); |
| cfang@1420 | 50 | } |
| cfang@1420 | 51 | } |
