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 /**
  26  * @test
  27  * @bug 8136421
  28  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
  29  * @library /testlibrary /test/lib /
  30  * @library ../common/patches
  31  * @modules java.base/jdk.internal.org.objectweb.asm
  32  *          java.base/jdk.internal.org.objectweb.asm.tree
  33  *          jdk.vm.ci/jdk.vm.ci.hotspot
  34  *          jdk.vm.ci/jdk.vm.ci.code
  35  *          jdk.vm.ci/jdk.vm.ci.meta
  36  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  37  * @build sun.hotspot.WhiteBox
  38  * @build compiler.jvmci.compilerToVM.ReprofileTest
  39  * @run main ClassFileInstaller
  40  *      sun.hotspot.WhiteBox
  41  *      sun.hotspot.WhiteBox$WhiteBoxPermission
  42  * @run main/othervm -Xbootclasspath/a:.
  43  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  44  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  45  *                   -Xmixed
  46  *                   compiler.jvmci.compilerToVM.ReprofileTest
  47  */
  48 
  49 package compiler.jvmci.compilerToVM;
  50 
  51 import compiler.jvmci.common.CTVMUtilities;
  52 import java.lang.reflect.Method;
  53 import java.util.ArrayList;
  54 import java.util.List;
  55 
  56 import compiler.whitebox.CompilerWhiteBoxTest;
  57 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  58 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  59 import jdk.vm.ci.meta.ProfilingInfo;
  60 import jdk.test.lib.Asserts;
  61 
  62 public class ReprofileTest {
  63 
  64     public static void main(String[] args) {
  65         List<Method> testCases = createTestCases();
  66         testCases.forEach(ReprofileTest::runSanityTest);
  67     }
  68 
  69     private static List<Method> createTestCases() {
  70         List<Method> testCases = new ArrayList<>();
  71         try {
  72 
  73             Class<?> aClass = DummyClass.class;
  74             testCases.add(aClass.getMethod("dummyInstanceFunction"));
  75 
  76             aClass = DummyClass.class;
  77             testCases.add(aClass.getMethod("dummyFunction"));
  78         } catch (NoSuchMethodException e) {
  79             throw new Error("TEST BUG " + e.getMessage(), e);
  80         }
  81         return testCases;
  82     }
  83 
  84     private static void runSanityTest(Method aMethod) {
  85         System.out.println(aMethod);
  86         HotSpotResolvedJavaMethod method = CTVMUtilities
  87                 .getResolvedMethod(aMethod);
  88         ProfilingInfo startProfile = method.getProfilingInfo();
  89         Asserts.assertFalse(startProfile.isMature(), aMethod
  90                 + " : profiling info is mature in the beginning");
  91 
  92         // make interpreter to profile this method
  93         try {
  94             Object obj = aMethod.getDeclaringClass().newInstance();
  95             for (long i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
  96                 aMethod.invoke(obj);
  97             }
  98         } catch (ReflectiveOperationException e) {
  99             throw new Error("TEST BUG : " + e.getMessage(), e);
 100         }
 101         ProfilingInfo compProfile = method.getProfilingInfo();
 102 
 103         Asserts.assertNE(startProfile.toString(), compProfile.toString(),
 104                 String.format("%s : profiling info wasn't changed after "
 105                                 + "%d invocations",
 106                         aMethod, CompilerWhiteBoxTest.THRESHOLD));
 107         Asserts.assertTrue(compProfile.isMature(),
 108                 String.format("%s is not mature after %d invocations",
 109                         aMethod, CompilerWhiteBoxTest.THRESHOLD));
 110 
 111         CompilerToVMHelper.reprofile(method);
 112         ProfilingInfo reprofiledProfile = method.getProfilingInfo();
 113 
 114         Asserts.assertNE(startProfile.toString(), reprofiledProfile.toString(),
 115                 aMethod + " : profiling info wasn't changed after reprofiling");
 116         Asserts.assertNE(compProfile.toString(), reprofiledProfile.toString(),
 117                 aMethod + " : profiling info didn't change after reprofile");
 118         Asserts.assertFalse(reprofiledProfile.isMature(), aMethod
 119                 + " : profiling info is mature after reprofiling");
 120     }
 121 }