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/*
* Copyright (c) 2018, Red Hat, Inc. 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.
*/
package compiler.c2.aarch64;
import java.lang.reflect.Field;
import jdk.internal.misc.Unsafe;
class TestUnsafeVolatileStore
{
public volatile int f_int = 0;
public volatile Integer f_obj = Integer.valueOf(0);
public static Unsafe unsafe = Unsafe.getUnsafe();
public static Field f_int_field;
public static Field f_obj_field;
public static long f_int_off;
public static long f_obj_off;
static {
try {
f_int_field = TestUnsafeVolatileStore.class.getField("f_int");
f_obj_field = TestUnsafeVolatileStore.class.getField("f_obj");
f_int_off = unsafe.objectFieldOffset(f_int_field);
f_obj_off = unsafe.objectFieldOffset(f_obj_field);
} catch (Exception e) {
System.out.println("reflection failed " + e);
e.printStackTrace();
}
}
public static void main(String[] args)
{
final TestUnsafeVolatileStore t = new TestUnsafeVolatileStore();
for (int i = 0; i < 100_000; i++) {
t.f_int = -1;
t.testInt(i);
if (t.f_int != i) {
throw new RuntimeException("bad result!");
}
}
for (int i = 0; i < 100_000; i++) {
t.f_obj = null;
t.testObj(Integer.valueOf(i));
if (t.f_obj != i) {
throw new RuntimeException("bad result!");
}
}
}
public void testInt(int i)
{
unsafe.putIntVolatile(this, f_int_off, i);
}
public void testObj(Object o)
{
unsafe.putObjectVolatile(this, f_obj_off, o);
}
}