1 /*
   2  * Copyright (c) 2015, 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 
  24 /**
  25  * @test
  26  * @bug 8136421
  27  * @requires vm.jvmci & (vm.opt.TieredStopAtLevel == null | vm.opt.TieredStopAtLevel == 3)
  28  * @library /test/lib /
  29  * @library ../common/patches
  30  * @modules java.base/jdk.internal.misc
  31  * @modules java.base/jdk.internal.org.objectweb.asm
  32  *          java.base/jdk.internal.org.objectweb.asm.tree
  33  *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
  34  *          jdk.internal.vm.ci/jdk.vm.ci.code
  35  *          jdk.internal.vm.ci/jdk.vm.ci.meta
  36  *
  37  * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
  38  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  39  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  40  * @run main/othervm -Xbootclasspath/a:.
  41  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  42  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  43  *                   -Xmixed -Xbatch -Djvmci.Compiler=null
  44  *                   compiler.jvmci.compilerToVM.ReprofileTest
  45  */
  46 
  47 package compiler.jvmci.compilerToVM;
  48 
  49 import compiler.jvmci.common.CTVMUtilities;
  50 import compiler.whitebox.CompilerWhiteBoxTest;
  51 import jdk.test.lib.Asserts;
  52 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  53 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  54 import jdk.vm.ci.meta.ProfilingInfo;
  55 
  56 import java.lang.reflect.Method;
  57 import java.util.ArrayList;
  58 import java.util.List;
  59 
  60 public class ReprofileTest {
  61 
  62     public static void main(String[] args) {
  63         List<Method> testCases = createTestCases();
  64         testCases.forEach(ReprofileTest::runSanityTest);
  65     }
  66 
  67     private static List<Method> createTestCases() {
  68         List<Method> testCases = new ArrayList<>();
  69         try {
  70 
  71             Class<?> aClass = DummyClass.class;
  72             testCases.add(aClass.getMethod("dummyInstanceFunction"));
  73 
  74             aClass = DummyClass.class;
  75             testCases.add(aClass.getMethod("dummyFunction"));
  76         } catch (NoSuchMethodException e) {
  77             throw new Error("TEST BUG " + e.getMessage(), e);
  78         }
  79         return testCases;
  80     }
  81 
  82     private static void runSanityTest(Method aMethod) {
  83         System.out.println(aMethod);
  84         HotSpotResolvedJavaMethod method = CTVMUtilities
  85                 .getResolvedMethod(aMethod);
  86         ProfilingInfo startProfile = method.getProfilingInfo();
  87         Asserts.assertFalse(startProfile.isMature(), aMethod
  88                 + " : profiling info is mature in the beginning");
  89 
  90         // make interpreter to profile this method
  91         try {
  92             Object obj = aMethod.getDeclaringClass().newInstance();
  93             for (long i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
  94                 aMethod.invoke(obj);
  95             }
  96         } catch (ReflectiveOperationException e) {
  97             throw new Error("TEST BUG : " + e.getMessage(), e);
  98         }
  99         ProfilingInfo compProfile = method.getProfilingInfo();
 100 
 101         Asserts.assertNE(startProfile.toString(), compProfile.toString(),
 102                 String.format("%s : profiling info wasn't changed after "
 103                                 + "%d invocations",
 104                         aMethod, CompilerWhiteBoxTest.THRESHOLD));
 105         Asserts.assertTrue(compProfile.isMature(),
 106                 String.format("%s is not mature after %d invocations",
 107                         aMethod, CompilerWhiteBoxTest.THRESHOLD));
 108 
 109         CompilerToVMHelper.reprofile(method);
 110         ProfilingInfo reprofiledProfile = method.getProfilingInfo();
 111 
 112         Asserts.assertNE(startProfile.toString(), reprofiledProfile.toString(),
 113                 aMethod + " : profiling info wasn't changed after reprofiling");
 114         Asserts.assertNE(compProfile.toString(), reprofiledProfile.toString(),
 115                 aMethod + " : profiling info didn't change after reprofile");
 116         Asserts.assertFalse(reprofiledProfile.isMature(), aMethod
 117                 + " : profiling info is mature after reprofiling");
 118     }
 119 }