--- /dev/null 2019-05-28 09:32:16.297090531 +0800 +++ new/test/hotspot/jtreg/compiler/profiling/TestProfileCounterOverflow.java 2019-05-31 17:24:12.045971806 +0800 @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2019, Loongson Technology Co. Ltd. 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 8224162 + * @summary Profile counter for a call site may overflow. + * @run main/othervm -Xbatch -XX:-UseOnStackReplacement -XX:MaxTrivialSize=0 compiler.profiling.TestProfileCounterOverflow + */ + +package compiler.profiling; + +public class TestProfileCounterOverflow { + public static void test(long iterations) { + for (long j = 0; j < iterations; j++) { + call(); + } + } + + public static void call() {} + + public static void main(String[] args) { + // trigger profiling on tier3 + for (int i = 0; i < 500; i++) { + test(1); + } + + test(Integer.MAX_VALUE + 10000L); // overflow call counter + + // trigger c2 compilation + for (int i = 0; i < 10_000; i++) { + test(1); + } + System.out.println("TEST PASSED"); + } +}