/* * Copyright (c) 2020, 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 8254887 * @summary C2: assert(cl->trip_count() > 0) failed: peeling a fully unrolled loop * * @run main/othervm -Xbatch TestPeelingNeverEnteredLoop * */ public class TestPeelingNeverEnteredLoop { public static final int N = 400; public static byte byFld=83; public static void lMeth() { int iArr1[][]=new int[N][N]; byte byArr[][]=new byte[N][N]; int i10 = 1; do { int i11 = 1; do { iArr1[i10 - 1][i11] = TestPeelingNeverEnteredLoop.byFld; byArr[i10][i11] -= (byte)-20046; for (int i12 = 1; 1 > i12; ++i12) { } } while (++i11 < 8); } while (++i10 < 212); } public static void main(String[] strArr) { TestPeelingNeverEnteredLoop _instance = new TestPeelingNeverEnteredLoop(); for (int i = 0; i < 1500; i++ ) { _instance.lMeth(); } } }