1 /*
   2  * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8011901
  27  * @summary instruct xaddL_no_res shouldn't allow 64 bit constants.
  28  * @modules java.base/jdk.internal.misc
  29  * @run main/othervm -XX:-BackgroundCompilation Test8011901
  30  *
  31  */
  32 
  33 import java.lang.reflect.Field;
  34 import jdk.internal.misc.Unsafe;
  35 
  36 public class Test8011901 {
  37 
  38     private long ctl;
  39 
  40     private static final Unsafe U;
  41     private static final long CTL;
  42 
  43     static {
  44         try {
  45             Field unsafe = Unsafe.class.getDeclaredField("theUnsafe");
  46             unsafe.setAccessible(true);
  47             U = (Unsafe) unsafe.get(null);
  48             CTL = U.objectFieldOffset(Test8011901.class.getDeclaredField("ctl"));
  49         } catch (Exception e) {
  50             throw new Error(e);
  51         }
  52     }
  53 
  54     public static void main(String[] args) {
  55         for(int c = 0; c < 20000; c++) {
  56             new Test8011901().makeTest();
  57         }
  58         System.out.println("Test Passed");
  59     }
  60 
  61     public static final long EXPECTED = 1L << 42;
  62 
  63     public void makeTest() {
  64         U.getAndAddLong(this, CTL, EXPECTED);
  65         if (ctl != EXPECTED) {
  66             throw new RuntimeException("Test failed. Expected: " + EXPECTED + ", but got = " + ctl);
  67         }
  68     }
  69 }