1 /*
   2  * Copyright (c) 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 8136421
  27  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
  28  * @library / /testlibrary /../../test/lib
  29  * @compile ../common/CompilerToVMHelper.java
  30  * @build sun.hotspot.WhiteBox IsMatureTest
  31  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  32  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  33  *                              jdk.vm.ci.hotspot.CompilerToVMHelper
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  35  *     -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  36  *     compiler.jvmci.compilerToVM.IsMatureTest
  37  */
  38 package compiler.jvmci.compilerToVM;
  39 
  40 import compiler.jvmci.common.testcases.SimpleClass;
  41 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  42 import jdk.test.lib.Asserts;
  43 import sun.hotspot.WhiteBox;
  44 
  45 import java.lang.reflect.Executable;
  46 
  47 public class IsMatureTest {
  48     private static final WhiteBox WB = WhiteBox.getWhiteBox();
  49 
  50     public static void main(String[] args) throws Exception {
  51         new IsMatureTest().test();
  52     }
  53 
  54     public void test() throws Exception {
  55         SimpleClass sclass = new SimpleClass();
  56         Executable method = SimpleClass.class.getDeclaredMethod("testMethod");
  57         long metaspaceMethodData = WB.getMethodData(method);
  58         Asserts.assertEQ(metaspaceMethodData, 0L, "MDO should be null for "
  59                  + "never invoked method");
  60         boolean isMature = CompilerToVMHelper.isMature(metaspaceMethodData);
  61         Asserts.assertFalse(isMature, "null MDO can't be mature");
  62         for (int i = 0; i < 1000; i++) {
  63             sclass.testMethod();
  64         }
  65         // warmed up, mdo should be ready for now
  66         metaspaceMethodData = WB.getMethodData(method);
  67         Asserts.assertNE(metaspaceMethodData, 0L,
  68                 "MDO should be available after 1000 calls");
  69         for (int i = 0; i < 100_000; i++) {
  70             sclass.testMethod();
  71         }
  72         isMature = CompilerToVMHelper.isMature(metaspaceMethodData);
  73         Asserts.assertTrue(isMature,
  74                 "a 100_000 times invoked method should be mature");
  75     }
  76 }