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/*
* Copyright (c) 2022, 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.
*/
/*
* @test
* bug 8281811
* @summary assert(_base == Tuple) failed: Not a Tuple after JDK-8280799
* @requires vm.gc.Shenandoah
* @run main/othervm -XX:+UseShenandoahGC -XX:-BackgroundCompilation -XX:LoopMaxUnroll=1 TestBarrierAboveProj
*/
public class TestBarrierAboveProj {
private static C objField = new C();
private static final Object[] arrayField = new Object[1000];
private static volatile int volatileField;
public static void main(String[] args) {
for (int i = 0; i < 20_000; i++) {
test1();
test2();
}
}
private static float test1() {
float v = 1;
for (int i = 1; i < 1000; i++) {
if (objField == arrayField[i]) {
return v;
}
v *= 2;
}
return v;
}
private static float test2() {
float v = 1;
volatileField = 0x42;
for (int i = 1; i < 1000; i++) {
if (objField == arrayField[i]) {
return v;
}
v *= 2;
}
return v;
}
private static class C {
public float floatField;
}
}
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