| /* |
| * Copyright (c) 2019, 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 8219335 |
| * @summary "failed: unexpected type" assert failure in ConnectionGraph::split_unique_types() with unsafe accesses |
| * |
| * @modules java.base/jdk.internal.misc |
| * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:-TieredCompilation -Xcomp -XX:CompileOnly=MaybeOffHeapUnsafeAccessToNewObject::test1 -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline MaybeOffHeapUnsafeAccessToNewObject |
| */ |
| |
| import java.lang.reflect.Field; |
| import jdk.internal.misc.Unsafe; |
| |
| public class MaybeOffHeapUnsafeAccessToNewObject { |
| public volatile int f_int = -1; |
| |
| |
| public static Unsafe unsafe = Unsafe.getUnsafe(); |
| public static final long f_int_off; |
| |
| static { |
| Field f_int_field = null; |
| try { |
| f_int_field = MaybeOffHeapUnsafeAccessToNewObject.class.getField("f_int"); |
| } catch (Exception e) { |
| System.out.println("reflection failed " + e); |
| e.printStackTrace(); |
| } |
| f_int_off = unsafe.objectFieldOffset(f_int_field); |
| } |
| |
| static public void main(String[] args) { |
| MaybeOffHeapUnsafeAccessToNewObject o = new MaybeOffHeapUnsafeAccessToNewObject(); |
| test1(); |
| } |
| |
| static Object test1_helper1(Object t) { |
| return t; |
| } |
| |
| static long test1_helper2(long off) { |
| return off; |
| } |
| |
| static int test1() { |
| MaybeOffHeapUnsafeAccessToNewObject t = new MaybeOffHeapUnsafeAccessToNewObject(); |
| Object o = test1_helper1(t); |
| long off = test1_helper2(f_int_off); |
| return unsafe.getInt(o, off); |
| } |
| |
| } |