/* * 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 8286625 * @key stress * @summary C2 fails with assert(!n->is_Store() && !n->is_LoadStore()) failed: no node with a side effect * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-BackgroundCompilation -XX:+StressIGVN -XX:StressSeed=4232417824 TestOverUnrolling2 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-BackgroundCompilation -XX:+StressIGVN TestOverUnrolling2 */ public class TestOverUnrolling2 { public static void main(String[] args) { final byte[] large = new byte[1000]; final byte[] src = new byte[16]; for (int i = 0; i < 20_000; i++) { test_helper(large, large); test(src); } } private static void test(byte[] src) { byte[] array = new byte[16]; test_helper(src, array); } private static void test_helper(byte[] src, byte[] array) { for (int i = 0; i < src.length; i++) { array[array.length - 1 - i] = src[i]; } } }