Mercurial > jdk8-mips64-public > hotspot / annotate
test/compiler/6636138/Test1.java@78af5ae8e731 (annotated)
test/compiler/6636138/Test1.java
Tue, 24 Mar 2009 12:19:47 -0700
- author
- cfang
- date
- Tue, 24 Mar 2009 12:19:47 -0700
- changeset 1102
- 78af5ae8e731
- child 1146
- 9610b2a8ab4e
- permissions
- -rw-r--r--
6636138: UseSuperWord enabled failure
Summary: Fixed SuperWord scheduling of memory operations.
Reviewed-by: kvn, never
| cfang@1102 | 1 | /* |
| cfang@1102 | 2 | * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. |
| cfang@1102 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| cfang@1102 | 4 | * |
| cfang@1102 | 5 | * This code is free software; you can redistribute it and/or modify it |
| cfang@1102 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| cfang@1102 | 7 | * published by the Free Software Foundation. |
| cfang@1102 | 8 | * |
| cfang@1102 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| cfang@1102 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| cfang@1102 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| cfang@1102 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| cfang@1102 | 13 | * accompanied this code). |
| cfang@1102 | 14 | * |
| cfang@1102 | 15 | * You should have received a copy of the GNU General Public License version |
| cfang@1102 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| cfang@1102 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| cfang@1102 | 18 | * |
| cfang@1102 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| cfang@1102 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| cfang@1102 | 21 | * have any questions. |
| cfang@1102 | 22 | */ |
| cfang@1102 | 23 | |
| cfang@1102 | 24 | /** |
| cfang@1102 | 25 | * @test |
| cfang@1102 | 26 | * @bug 6636138 |
| cfang@1102 | 27 | * @summary SuperWord::co_locate_pack(Node_List* p) generates memory graph that leads to memory order violation. |
| cfang@1102 | 28 | * |
| cfang@1102 | 29 | * @run main/othervm -server -Xbatch -XX:CompileOnly=Test1.init -XX:+UseSuperword Test1 |
| cfang@1102 | 30 | */ |
| cfang@1102 | 31 | |
| cfang@1102 | 32 | class Test1 { |
| cfang@1102 | 33 | |
| cfang@1102 | 34 | public static void init(int src[], int [] dst, int[] ref) { |
| cfang@1102 | 35 | // initialize the arrays |
| cfang@1102 | 36 | for (int i =0; i<src.length; i++) { |
| cfang@1102 | 37 | src[i] = i; |
| cfang@1102 | 38 | dst[i] = 2; // yes, dst[i] needed(otherwise src[i] will be replaced with i) |
| cfang@1102 | 39 | ref[i] = src[i]; // src[i] depends on the store src[i] |
| cfang@1102 | 40 | } |
| cfang@1102 | 41 | } |
| cfang@1102 | 42 | |
| cfang@1102 | 43 | public static void verify(int src[], int[] ref) { |
| cfang@1102 | 44 | // check whether src and ref are equal |
| cfang@1102 | 45 | for (int i = 0; i < src.length; i++) { |
| cfang@1102 | 46 | if (src[i] != ref[i]) { |
| cfang@1102 | 47 | System.out.println("Error: src and ref don't match at " + i); |
| cfang@1102 | 48 | System.exit(-1); |
| cfang@1102 | 49 | } |
| cfang@1102 | 50 | } |
| cfang@1102 | 51 | } |
| cfang@1102 | 52 | |
| cfang@1102 | 53 | public static void test() { |
| cfang@1102 | 54 | int[] src = new int[34]; |
| cfang@1102 | 55 | int[] dst = new int[34]; |
| cfang@1102 | 56 | int[] ref = new int[34]; |
| cfang@1102 | 57 | |
| cfang@1102 | 58 | init(src, dst, ref); |
| cfang@1102 | 59 | verify(src, ref); |
| cfang@1102 | 60 | } |
| cfang@1102 | 61 | |
| cfang@1102 | 62 | public static void main(String[] args) { |
| cfang@1102 | 63 | for (int i=0; i< 2000; i++) { |
| cfang@1102 | 64 | test(); |
| cfang@1102 | 65 | } |
| cfang@1102 | 66 | } |
| cfang@1102 | 67 | } |
