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/*
* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 6636138
* @summary SuperWord::co_locate_pack(Node_List* p) generates memory graph that leads to memory order violation.
*
* @run main/othervm -Xbatch
* -XX:CompileCommand=compileonly,compiler.c2.Test6636138_2::shift
* compiler.c2.Test6636138_2
*/
package compiler.c2;
public class Test6636138_2 {
public static void init(int src[]) {
// Initialize the array
for (int i = 0; i < src.length; i++)
src[i] = i;
}
public static void shift(int src[]) {
//left-shift the array
for (int i = src.length - 1; i > 0; i--) {
int tmp = src[i];
src[i] = src[i - 1];
src[i - 1] = tmp;
}
}
public static void verify(int src[]) {
for (int i = 0; i < src.length; i++) {
int value = (i - 1 + src.length) % src.length; // correct value after shifting
if (src[i] != value) {
System.out.println("Error: src[" + i + "] should be " + value + " instead of " + src[i]);
System.exit(97);
}
}
}
public static void test() {
int[] src = new int[10];
init(src);
shift(src);
verify(src);
}
public static void main(String[] args) {
for (int i = 0; i < 2000; i++)
test();
}
}
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