MaterializeVirtualObjectTest.java revision 9111:a41fe5ffa839 
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 * @test
26 * @bug 8136421
27 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
28 * @library / /testlibrary /../../test/lib
29 * @compile ../common/CompilerToVMHelper.java
30 * @build sun.hotspot.WhiteBox MaterializeVirtualObjectTest
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
32 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
33 *                              jdk.vm.ci.hotspot.CompilerToVMHelper
34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
35 *     -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
36 *     -XX:CompileCommand=exclude,*::check -XX:+DoEscapeAnalysis
37 *     compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
38 */
39
40package compiler.jvmci.compilerToVM;
41
42import compiler.jvmci.common.CTVMUtilities;
43import jdk.vm.ci.hotspot.CompilerToVMHelper;
44import jdk.test.lib.Asserts;
45import jdk.test.lib.Utils;
46import sun.hotspot.WhiteBox;
47import java.lang.reflect.Method;
48import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
49import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
50
51public class MaterializeVirtualObjectTest {
52    private static final WhiteBox WB = WhiteBox.getWhiteBox();
53    private static final int INVOCATIONS = 100_000;
54    private static final Method METHOD;
55    private static final HotSpotResolvedJavaMethodImpl RESOLVED_METHOD;
56    private final boolean invalidate;
57
58    static {
59        try {
60            METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod(
61                    "testFrame", String.class, Integer.class);
62        } catch (NoSuchMethodException e) {
63            throw new Error("Can't get executable for test method", e);
64        }
65        RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD);
66    }
67
68    public MaterializeVirtualObjectTest(boolean invalidate) {
69        this.invalidate = invalidate;
70    }
71
72    public static void main(String[] args) {
73        new MaterializeVirtualObjectTest(true).test();
74        new MaterializeVirtualObjectTest(false).test();
75    }
76
77    private void test() {
78        System.out.printf("CASE: invalidate=%b%n", invalidate);
79        for (int i = 0; i < INVOCATIONS; i++) {
80            testFrame("someString", i);
81        }
82        Utils.waitForCondition(() -> WB.isMethodCompiled(METHOD), 100L);
83        Asserts.assertTrue(WB.isMethodCompiled(METHOD));
84        testFrame("someString", INVOCATIONS);
85    }
86
87    private void testFrame(String str, Integer iteration) {
88        Helper helper = new Helper(str);
89        check(iteration);
90        Asserts.assertTrue((helper.string != null) && (this != null)
91                && (helper != null), "Some locals are null");
92    }
93
94    private void check(int iteration) {
95        // Materialize virtual objects on last invocation
96        if (iteration == INVOCATIONS) {
97            HotSpotStackFrameReference hsFrame = CompilerToVMHelper
98                    .getNextStackFrame(/* topmost frame */ null,
99                            new HotSpotResolvedJavaMethodImpl[]{
100                                RESOLVED_METHOD}, /* don't skip any */ 0);
101            Asserts.assertNotNull(hsFrame, "Got null frame");
102            Asserts.assertTrue(WB.isMethodCompiled(METHOD),
103                    "Expected test method to be compiled");
104            Asserts.assertTrue(hsFrame.hasVirtualObjects(),
105                    "Has no virtual object before materialization");
106            CompilerToVMHelper.materializeVirtualObjects(hsFrame, invalidate);
107            Asserts.assertFalse(hsFrame.hasVirtualObjects(),
108                    "Has virtual object after materialization");
109            Asserts.assertEQ(WB.isMethodCompiled(METHOD), !invalidate,
110                    "Unexpected compiled status");
111        }
112    }
113
114    private class Helper {
115        public String string;
116
117        public Helper(String s) {
118            this.string = s;
119        }
120    }
121}
122