| /* |
| * Copyright (c) 2018, 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 8209639 |
| * @summary assert failure in coalesce.cpp: attempted to spill a non-spillable item |
| * |
| * @run main/othervm -XX:-BackgroundCompilation -XX:CompileCommand=dontinline,SubsumingLoadsCauseFlagSpill::not_inlined -Xmx1024m SubsumingLoadsCauseFlagSpill |
| * |
| */ |
| |
| public class SubsumingLoadsCauseFlagSpill { |
| private static Object field; |
| private static boolean do_throw; |
| private static volatile boolean barrier; |
| |
| public static void main(String[] args) { |
| for (int i = 0; i < 20_000; i++) { |
| do_throw = true; |
| field = null; |
| test(0); |
| do_throw = false; |
| field = new Object(); |
| test(0); |
| } |
| } |
| |
| private static float test(float f) { |
| Object v = null; |
| try { |
| not_inlined(); |
| v = field; |
| } catch (MyException me) { |
| v = field; |
| barrier = true; |
| } |
| if (v == null) { |
| return f * f; |
| } |
| return f; |
| } |
| |
| private static void not_inlined() throws MyException{ |
| if (do_throw) { |
| throw new MyException(); |
| } |
| } |
| |
| private static class MyException extends Throwable { |
| } |
| } |