1 /*
   2  * Copyright (c) 2013, 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 ClearMethodStateTest
  26  * @library /testlibrary /testlibrary/whitebox
  27  * @build ClearMethodStateTest
  28  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  29  * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ClearMethodStateTest
  30  * @author igor.ignatyev@oracle.com
  31  */
  32 public class ClearMethodStateTest extends CompilerWhiteBoxTest {
  33     public static void main(String[] args) throws Exception {
  34         // to prevent inlining #method into #compile() and #test()
  35         WHITE_BOX.setDontInlineMethod(METHOD, true);
  36         new ClearMethodStateTest().runTest();
  37     }
  38 
  39     protected void test() throws Exception {
  40         checkNotCompiled(METHOD);
  41         compile();
  42         checkCompiled(METHOD);
  43         WHITE_BOX.clearMethodState(METHOD);
  44         WHITE_BOX.deoptimizeMethod(METHOD);
  45         checkNotCompiled(METHOD);
  46 
  47 
  48         if (!TIERED_COMPILATION) {
  49             WHITE_BOX.clearMethodState(METHOD);
  50             compile(COMPILE_THRESHOLD);
  51             checkCompiled(METHOD);
  52 
  53             WHITE_BOX.deoptimizeMethod(METHOD);
  54             checkNotCompiled(METHOD);
  55             WHITE_BOX.clearMethodState(METHOD);
  56 
  57             if (COMPILE_THRESHOLD > 1) {
  58                 compile(COMPILE_THRESHOLD - 1);
  59                 checkNotCompiled(METHOD);
  60             } else {
  61                System.err.println("Warning: 'CompileThreshold' <= 1");
  62             }
  63 
  64             method();
  65             checkCompiled(METHOD);
  66         } else {
  67             System.err.println(
  68                     "Warning: part of test is not applicable in Tiered");
  69         }
  70     }
  71 }