| /* |
| * 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 8247824 |
| * @summary CTW: C2 (Shenandoah) compilation fails with SEGV in SBC2Support::pin_and_expand |
| * @requires vm.flavor == "server" |
| * @requires vm.gc.Shenandoah & !vm.graal.enabled |
| * |
| * @run main/othervm -XX:-BackgroundCompilation -XX:+UseShenandoahGC -XX:LoopMaxUnroll=0 TestShenandoahLRBInOuterStripMinedLoop |
| * |
| */ |
| |
| import java.util.Arrays; |
| |
| public class TestShenandoahLRBInOuterStripMinedLoop { |
| public static void main(String[] args) { |
| A[] array = new A[4000]; |
| Arrays.fill(array, new A()); |
| for (int i = 0; i < 20_0000; i++) { |
| test(array); |
| } |
| } |
| |
| private static int test(A[] array) { |
| A a = null; |
| int v = 1; |
| A b = null; |
| for (int i = 0; i < 2000; i++) { |
| a = array[i]; |
| b = array[2*i]; |
| v *= 2; |
| } |
| return a.f + b.f + v; |
| } |
| |
| private static class A { |
| public int f; |
| } |
| } |