MaterializeVirtualObjectTest.java revision 9287:40bd4478a362 
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 java.lang.reflect.Method;
50import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
51import jdk.vm.ci.meta.ResolvedJavaMethod;
52import jdk.vm.ci.hotspot.CompilerToVMHelper;
53import jdk.test.lib.Asserts;
54
55import compiler.jvmci.common.CTVMUtilities;
56import compiler.testlibrary.CompilerUtils;
57
58import sun.hotspot.WhiteBox;
59
60public class MaterializeVirtualObjectTest {
61    private static final WhiteBox WB = WhiteBox.getWhiteBox();
62    private static final Method METHOD;
63    private static final ResolvedJavaMethod RESOLVED_METHOD;
64    private static final boolean INVALIDATE = Boolean.getBoolean(
65            "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
66
67    static {
68        try {
69            METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod(
70                    "testFrame", String.class, boolean.class);
71        } catch (NoSuchMethodException e) {
72            throw new Error("Can't get executable for test method", e);
73        }
74        RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD);
75    }
76
77    public static void main(String[] args) {
78        int levels[] = CompilerUtils.getAvailableCompilationLevels();
79        // we need compilation level 4 to use EscapeAnalysis
80        if (levels.length < 1 || levels[levels.length - 1] != 4) {
81            System.out.println("INFO: Test needs compilation level 4 to"
82                    + " be available. Skipping.");
83        } else {
84            new MaterializeVirtualObjectTest().test();
85        }
86    }
87
88    private static String getName() {
89        return "CASE: invalidate=" + INVALIDATE;
90    }
91
92    private void test() {
93        System.out.println(getName());
94        Asserts.assertFalse(WB.isMethodCompiled(METHOD), getName()
95                + " : method unexpectedly compiled");
96        /* need to call testFrame at least once to be able to compile it, so
97           calling with materialize=false, because testFrame is not compiled */
98        testFrame("someString", /* materialize= */ false);
99        WB.enqueueMethodForCompilation(METHOD, 4);
100        Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
101                + "Method unexpectedly not compiled");
102        // calling with materialize=true to materialize compiled testFrame
103        testFrame("someString", /* materialize= */ true);
104    }
105
106    private void testFrame(String str, boolean materialize) {
107        Helper helper = new Helper(str);
108        check(materialize);
109        Asserts.assertTrue((helper.string != null) && (this != null)
110                && (helper != null), getName() + " : some locals are null");
111    }
112
113    private void check(boolean materialize) {
114        // Materialize virtual objects on last invocation
115        if (materialize) {
116            HotSpotStackFrameReference hsFrame = CompilerToVMHelper
117                    .getNextStackFrame(/* topmost frame */ null,
118                            new ResolvedJavaMethod[]{
119                                RESOLVED_METHOD}, /* don't skip any */ 0);
120            Asserts.assertNotNull(hsFrame, getName() + " : got null frame");
121            Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
122                    + "Test method should be compiled");
123            Asserts.assertTrue(hsFrame.hasVirtualObjects(), getName()
124                    + ": has no virtual object before materialization");
125            CompilerToVMHelper.materializeVirtualObjects(hsFrame, INVALIDATE);
126            Asserts.assertFalse(hsFrame.hasVirtualObjects(), getName()
127                    + " : has virtual object after materialization");
128            Asserts.assertEQ(WB.isMethodCompiled(METHOD), !INVALIDATE, getName()
129                    + " : unexpected compiled status");
130        }
131    }
132
133    private class Helper {
134        public String string;
135
136        public Helper(String s) {
137            this.string = s;
138        }
139    }
140}
141