ReprofileTest.java revision 12748:fbb9c8026495 
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
47package compiler.jvmci.compilerToVM;
48
49import compiler.jvmci.common.CTVMUtilities;
50import compiler.whitebox.CompilerWhiteBoxTest;
51import jdk.test.lib.Asserts;
52import jdk.vm.ci.hotspot.CompilerToVMHelper;
53import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
54import jdk.vm.ci.meta.ProfilingInfo;
55
56import java.lang.reflect.Method;
57import java.util.ArrayList;
58import java.util.List;
59
60public 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}
120