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 }