75 lines
2.1 KiB
Java
75 lines
2.1 KiB
Java
/*
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* Copyright (c) 2022, Red Hat, Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* bug 8280885
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* @summary Shenandoah: Some tests failed with "EA: missing allocation reference path"
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* @requires vm.gc.Shenandoah
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*
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* @run main/othervm -XX:-BackgroundCompilation -XX:+UseShenandoahGC -XX:+UnlockExperimentalVMOptions -XX:ShenandoahGCMode=iu
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* -XX:CompileCommand=dontinline,TestUnexpectedIUBarrierEA::notInlined TestUnexpectedIUBarrierEA
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*/
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public class TestUnexpectedIUBarrierEA {
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private static Object field;
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public static void main(String[] args) {
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for (int i = 0; i < 20_000; i++) {
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test(false);
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}
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}
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private static void test(boolean flag) {
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A a = new A();
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B b = new B();
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b.field = a;
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notInlined();
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Object o = b.field;
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if (!(o instanceof A)) {
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}
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C c = new C();
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c.field = o;
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if (flag) {
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field = c.field;
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}
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}
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private static void notInlined() {
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}
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private static class A {
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}
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private static class B {
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public Object field;
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}
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private static class C {
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public Object field;
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}
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}
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