/* * Copyright (c) 2021, 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 8264360 * @summary Loop strip mining verification fails with "should be on the backedge" * * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation TestLoadOnBackedgeWithPrec * */ class a { int g = 20; float h = 2; long b = 6; } public class TestLoadOnBackedgeWithPrec { int c ; a[] i = {new a()}; float j() { a k = new a(); float l = 5; for (int d = 0; d < 8; ++d) { for (int e = 0; e < 9; ++e) { k = k; l *= k.g; } for (int f = 0; f < 9; ++f) { new a(); } { a[] m = { new a(), new a(), new a(), new a(), new a(), new a(), new a(), new a(), new a()}; c = i[0].g + k.g; } } return k.h; } public static void main(String[] args) { TestLoadOnBackedgeWithPrec n = new TestLoadOnBackedgeWithPrec(); for (int i = 0; i < 5_000; i++) { n.j(); } } }