80 lines
2.4 KiB
Java
80 lines
2.4 KiB
Java
/*
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* Copyright (c) 2020, 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 8244663
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* @summary Shenandoah: C2 assertion fails in Matcher::collect_null_checks
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* @requires vm.flavor == "server"
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* @requires vm.gc.Shenandoah
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*
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
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* -XX:CompileCommand=dontinline,TestShenandoahCmpPAfterCall::not_inlined TestShenandoahCmpPAfterCall
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*
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*/
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public class TestShenandoahCmpPAfterCall {
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private static Object field1 = new Object();
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private static Object field2 = new Object();
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private static Object o3;
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private static volatile int barrier;
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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();
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}
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}
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private static void test() {
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Object o1 = null;
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Object o2 = field2;
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try {
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not_inlined();
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o1 = field1;
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if (o1 == o2) {
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}
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} catch (Exception1 ex1) {
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o1 = field1;
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if (o1 == o2) {
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}
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}
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barrier = 42;
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if (o1 == o2) {
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}
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}
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static int count = 0;
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private static void not_inlined() throws Exception1 {
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count++;
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if ((count % 100) == 0) {
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throw new Exception1();
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}
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}
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private static class Exception1 extends Exception {
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}
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}
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