/******************************************************************************
* Copyright (c) 2009 - 2015 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*****************************************************************************/
/**
*
*/
package data.causality;
/**
* Litmus test case from
* Y.�Yang, G.�Gopalakrishnan, G.�Lindstrom, and K.�Slind.
* Nemos: a framework for axiomatic and executable specifications of memory consistency models.
* In IPDPS �04, pages 26�30, 2004.
*
* <pre>
* Initially, a = b = c = 0
*
* Thread 1:
* a = 1
* c = 0
* r1 = b
*
* Thread 2:
* b = 1
* c = 2
* r2 = a
*
* Behavior in question: r1 == r2 == 0
*
* Decision: Allowed
* </pre>
*
* @author etorlak
*
*/
public final class Test22 {
static int a = 0, b = 0, c = 0;
public static final void thread1() {
a = 1;
c = 0;
final int r1 = b;
assert r1==0;
}
public static final void thread2() {
b = 1;
c = 2;
final int r2 = a;
assert r2==0;
}
}