MaterializeVirtualObjectTest.java revision 9142:fe46f2941ea9 
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 * @ignore 8139703
30 * @compile ../common/CompilerToVMHelper.java
31 * @build sun.hotspot.WhiteBox MaterializeVirtualObjectTest
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
34 *                              jdk.vm.ci.hotspot.CompilerToVMHelper
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
36 *     -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
37 *     -XX:CompileCommand=exclude,*::check -XX:+DoEscapeAnalysis -Xbatch
38 *     -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
39 *     compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
41 *     -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
42 *     -XX:CompileCommand=exclude,*::check -XX:+DoEscapeAnalysis -Xbatch
43 *     -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
44 *     compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
45 */
46
47package compiler.jvmci.compilerToVM;
48
49import compiler.jvmci.common.CTVMUtilities;
50import compiler.testlibrary.CompilerUtils;
51import jdk.vm.ci.hotspot.CompilerToVMHelper;
52import jdk.test.lib.Asserts;
53import sun.hotspot.WhiteBox;
54import java.lang.reflect.Method;
55import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
56import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
57
58public class MaterializeVirtualObjectTest {
59    private static final WhiteBox WB = WhiteBox.getWhiteBox();
60    private static final Method METHOD;
61    private static final HotSpotResolvedJavaMethodImpl RESOLVED_METHOD;
62    private static final boolean INVALIDATE = Boolean.getBoolean(
63            "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
64
65    static {
66        try {
67            METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod(
68                    "testFrame", String.class, boolean.class);
69        } catch (NoSuchMethodException e) {
70            throw new Error("Can't get executable for test method", e);
71        }
72        RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD);
73    }
74
75    public static void main(String[] args) {
76        int levels[] = CompilerUtils.getAvailableCompilationLevels();
77        // we need compilation level 4 to use EscapeAnalysis
78        if (levels.length < 1 || levels[levels.length - 1] != 4) {
79            System.out.println("INFO: Test needs compilation level 4 to"
80                    + " be available. Skipping.");
81        } else {
82            new MaterializeVirtualObjectTest().test();
83        }
84    }
85
86    private static String getName() {
87        return "CASE: invalidate=" + INVALIDATE;
88    }
89
90    private void test() {
91        System.out.println(getName());
92        Asserts.assertFalse(WB.isMethodCompiled(METHOD), getName()
93                + " : method unexpectedly compiled");
94        /* need to call testFrame at least once to be able to compile it, so
95           calling with materialize=false, because testFrame is not compiled */
96        testFrame("someString", /* materialize= */ false);
97        WB.enqueueMethodForCompilation(METHOD, 4);
98        Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
99                + "Method unexpectedly not compiled");
100        // calling with materialize=true to materialize compiled testFrame
101        testFrame("someString", /* materialize= */ true);
102    }
103
104    private void testFrame(String str, boolean materialize) {
105        Helper helper = new Helper(str);
106        check(materialize);
107        Asserts.assertTrue((helper.string != null) && (this != null)
108                && (helper != null), getName() + " : some locals are null");
109    }
110
111    private void check(boolean materialize) {
112        // Materialize virtual objects on last invocation
113        if (materialize) {
114            HotSpotStackFrameReference hsFrame = CompilerToVMHelper
115                    .getNextStackFrame(/* topmost frame */ null,
116                            new HotSpotResolvedJavaMethodImpl[]{
117                                RESOLVED_METHOD}, /* don't skip any */ 0);
118            Asserts.assertNotNull(hsFrame, getName() + " : got null frame");
119            Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
120                    + "Test method should be compiled");
121            Asserts.assertTrue(hsFrame.hasVirtualObjects(), getName()
122                    + ": has no virtual object before materialization");
123            CompilerToVMHelper.materializeVirtualObjects(hsFrame, INVALIDATE);
124            Asserts.assertFalse(hsFrame.hasVirtualObjects(), getName()
125                    + " : has virtual object after materialization");
126            Asserts.assertEQ(WB.isMethodCompiled(METHOD), !INVALIDATE, getName()
127                    + " : unexpected compiled status");
128        }
129    }
130
131    private class Helper {
132        public String string;
133
134        public Helper(String s) {
135            this.string = s;
136        }
137    }
138}
139