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 (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64") & (vm.opt.TieredStopAtLevel == null | vm.opt.TieredStopAtLevel == 3)
  29  * @library /test/lib /
  30  * @library ../common/patches
  31  * @modules java.base/jdk.internal.misc
  32  * @modules java.base/jdk.internal.org.objectweb.asm
  33  *          java.base/jdk.internal.org.objectweb.asm.tree
  34  *          jdk.vm.ci/jdk.vm.ci.hotspot
  35  *          jdk.vm.ci/jdk.vm.ci.code
  36  *          jdk.vm.ci/jdk.vm.ci.meta
  37  *
  38  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
  39  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  40  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  41  * @run main/othervm -Xbootclasspath/a:.
  42  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  43  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  44  *                   -Xmixed -Xbatch
  45  *                   compiler.jvmci.compilerToVM.ReprofileTest
  46  */
  47 
  48 package compiler.jvmci.compilerToVM;
  49 
  50 import compiler.jvmci.common.CTVMUtilities;
  51 import compiler.whitebox.CompilerWhiteBoxTest;
  52 import jdk.test.lib.Asserts;
  53 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  54 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  55 import jdk.vm.ci.meta.ProfilingInfo;
  56 
  57 import java.lang.reflect.Method;
  58 import java.util.ArrayList;
  59 import java.util.List;
  60 
  61 public class ReprofileTest {
  62 
  63     public static void main(String[] args) {
  64         List<Method> testCases = createTestCases();
  65         testCases.forEach(ReprofileTest::runSanityTest);
  66     }
  67 
  68     private static List<Method> createTestCases() {
  69         List<Method> testCases = new ArrayList<>();
  70         try {
  71 
  72             Class<?> aClass = DummyClass.class;
  73             testCases.add(aClass.getMethod("dummyInstanceFunction"));
  74 
  75             aClass = DummyClass.class;
  76             testCases.add(aClass.getMethod("dummyFunction"));
  77         } catch (NoSuchMethodException e) {
  78             throw new Error("TEST BUG " + e.getMessage(), e);
  79         }
  80         return testCases;
  81     }
  82 
  83     private static void runSanityTest(Method aMethod) {
  84         System.out.println(aMethod);
  85         HotSpotResolvedJavaMethod method = CTVMUtilities
  86                 .getResolvedMethod(aMethod);
  87         ProfilingInfo startProfile = method.getProfilingInfo();
  88         Asserts.assertFalse(startProfile.isMature(), aMethod
  89                 + " : profiling info is mature in the beginning");
  90 
  91         // make interpreter to profile this method
  92         try {
  93             Object obj = aMethod.getDeclaringClass().newInstance();
  94             for (long i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
  95                 aMethod.invoke(obj);
  96             }
  97         } catch (ReflectiveOperationException e) {
  98             throw new Error("TEST BUG : " + e.getMessage(), e);
  99         }
 100         ProfilingInfo compProfile = method.getProfilingInfo();
 101 
 102         Asserts.assertNE(startProfile.toString(), compProfile.toString(),
 103                 String.format("%s : profiling info wasn't changed after "
 104                                 + "%d invocations",
 105                         aMethod, CompilerWhiteBoxTest.THRESHOLD));
 106         Asserts.assertTrue(compProfile.isMature(),
 107                 String.format("%s is not mature after %d invocations",
 108                         aMethod, CompilerWhiteBoxTest.THRESHOLD));
 109 
 110         CompilerToVMHelper.reprofile(method);
 111         ProfilingInfo reprofiledProfile = method.getProfilingInfo();
 112 
 113         Asserts.assertNE(startProfile.toString(), reprofiledProfile.toString(),
 114                 aMethod + " : profiling info wasn't changed after reprofiling");
 115         Asserts.assertNE(compProfile.toString(), reprofiledProfile.toString(),
 116                 aMethod + " : profiling info didn't change after reprofile");
 117         Asserts.assertFalse(reprofiledProfile.isMature(), aMethod
 118                 + " : profiling info is mature after reprofiling");
 119     }
 120 }