1 /*
   2  * Copyright (c) 2016, 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 package org.graalvm.compiler.hotspot.test;
  24 
  25 import org.junit.Ignore;
  26 import org.junit.Test;
  27 
  28 import org.graalvm.compiler.api.directives.GraalDirectives;
  29 
  30 /**
  31  * Test on-stack-replacement with locks.
  32  */
  33 public class GraalOSRLockTest extends GraalOSRTestBase {
  34 
  35     @Ignore("OSR with locks not supported")
  36     @Test
  37     public void testOSR() {
  38         testOSR("test");
  39     }
  40 
  41     static int limit = 10000;
  42 
  43     private static Object lock = new Object();
  44 
  45     public static ReturnValue test() {
  46         synchronized (lock) {
  47             for (int i = 0; i < limit * limit; i++) {
  48                 GraalDirectives.blackhole(i);
  49                 if (GraalDirectives.inCompiledCode()) {
  50                     return ReturnValue.SUCCESS;
  51                 }
  52             }
  53             return ReturnValue.FAILURE;
  54         }
  55     }
  56 
  57 }