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
28 * @library / /test/lib
29 *          ../common/patches
30 * @modules java.base/jdk.internal.misc
31 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
32 *
33 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
34 *        sun.hotspot.WhiteBox
35 * @run driver 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
43package compiler.jvmci.compilerToVM;
44
45import compiler.jvmci.common.testcases.SimpleClass;
46import compiler.whitebox.CompilerWhiteBoxTest;
47import jdk.test.lib.Asserts;
48import jdk.test.lib.Platform;
49import jdk.vm.ci.hotspot.CompilerToVMHelper;
50import sun.hotspot.WhiteBox;
51
52import java.lang.reflect.Executable;
53
54public class IsMatureTest {
55    private static final WhiteBox WB = WhiteBox.getWhiteBox();
56    private static final boolean TIERED
57            = WB.getBooleanVMFlag("TieredCompilation");
58
59    public static void main(String[] args) throws Exception {
60        new IsMatureTest().test();
61    }
62
63    public void test() throws Exception {
64        SimpleClass sclass = new SimpleClass();
65        Executable method = SimpleClass.class.getDeclaredMethod("testMethod");
66        long methodData = WB.getMethodData(method);
67        boolean isMature = CompilerToVMHelper.isMature(methodData);
68        Asserts.assertEQ(methodData, 0L,
69                "Never invoked method can't have method data");
70        Asserts.assertFalse(isMature, "Never invoked method can't be mature");
71        for (int i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
72            sclass.testMethod();
73        }
74        methodData = WB.getMethodData(method);
75        isMature = CompilerToVMHelper.isMature(methodData);
76        int compLevel = WB.getMethodCompilationLevel(method);
77        // methodData doesn't necessarily exist for interpreter and compilation level 1
78        if (compLevel != CompilerWhiteBoxTest.COMP_LEVEL_NONE
79                && compLevel != CompilerWhiteBoxTest.COMP_LEVEL_SIMPLE) {
80            Asserts.assertNE(methodData, 0L,
81                    "Multiple times invoked method should have method data");
82            /* a method is not mature in Xcomp mode with tiered compilation disabled,
83               see NonTieredCompPolicy::is_mature */
84            Asserts.assertEQ(isMature, !(Platform.isComp() && !TIERED),
85                    "Unexpected isMature state for multiple times invoked method");
86        }
87    }
88}
89