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8281811: assert(_base == Tuple) failed: Not a Tuple after JDK-8280799
Reviewed-by: mdoerr Backport-of: fcce24c5b3cd1dab755fd9b6779af71f4dd78773
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test/hotspot/jtreg/gc/shenandoah/compiler/TestBarrierAboveProj.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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|
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| /* | ||
| * @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 | ||
| */ | ||
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| public class TestBarrierAboveProj { | ||
| private static C objField = new C(); | ||
| private static final Object[] arrayField = new Object[1000]; | ||
| private static volatile int volatileField; | ||
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| public static void main(String[] args) { | ||
| for (int i = 0; i < 20_000; i++) { | ||
| test1(); | ||
| test2(); | ||
| } | ||
| } | ||
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| private static float test1() { | ||
| float v = 1; | ||
| for (int i = 1; i < 1000; i++) { | ||
| if (objField == arrayField[i]) { | ||
| return v; | ||
| } | ||
| v *= 2; | ||
| } | ||
| return v; | ||
| } | ||
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| 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; | ||
| } | ||
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| private static class C { | ||
| public float floatField; | ||
| } | ||
| } |
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