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.simpleArch == "aarch64")
  28  * @library / /testlibrary /test/lib
  29  * @library ../common/patches
  30  * @modules java.base/jdk.internal.misc
  31  * @modules jdk.vm.ci/jdk.vm.ci.hotspot
  32  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  33  * @build compiler.jvmci.compilerToVM.IsMatureTest
  34  * @build sun.hotspot.WhiteBox
  35  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  36  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  37  * @run main/othervm -Xbootclasspath/a:.
  38  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  39  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  40  *                   compiler.jvmci.compilerToVM.IsMatureTest
  41  */
  42 
  43 package compiler.jvmci.compilerToVM;
  44 
  45 import compiler.jvmci.common.testcases.SimpleClass;
  46 import compiler.whitebox.CompilerWhiteBoxTest;
  47 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  48 import jdk.test.lib.Asserts;
  49 import sun.hotspot.WhiteBox;
  50 
  51 import java.lang.reflect.Executable;
  52 
  53 public class IsMatureTest {
  54     private static final WhiteBox WB = WhiteBox.getWhiteBox();
  55     private static final boolean IS_XCOMP
  56             = System.getProperty("java.vm.info").contains("compiled mode");
  57     private static final boolean TIERED
  58             = WB.getBooleanVMFlag("TieredCompilation");
  59 
  60     public static void main(String[] args) throws Exception {
  61         new IsMatureTest().test();
  62     }
  63 
  64     public void test() throws Exception {
  65         SimpleClass sclass = new SimpleClass();
  66         Executable method = SimpleClass.class.getDeclaredMethod("testMethod");
  67         long methodData = WB.getMethodData(method);
  68         boolean isMature = CompilerToVMHelper.isMature(methodData);
  69         Asserts.assertEQ(methodData, 0L,
  70                 "Never invoked method can't have method data");
  71         Asserts.assertFalse(isMature, "Never invoked method can't be mature");
  72         for (int i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
  73             sclass.testMethod();
  74         }
  75         methodData = WB.getMethodData(method);
  76         isMature = CompilerToVMHelper.isMature(methodData);
  77         Asserts.assertNE(methodData, 0L,
  78                 "Multiple times invoked method should have method data");
  79         /* a method is not mature for -Xcomp and -Tiered,
  80            see NonTieredCompPolicy::is_mature */
  81         Asserts.assertEQ(isMature, !(IS_XCOMP && !TIERED),
  82                 "Unexpected isMature state for multiple times invoked method");
  83     }
  84 }