MaterializeVirtualObjectTest.java revision 9135:acf9f6650193 
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 -Xbatch
37 *     -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
38 *     compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
39 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
40 *     -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
41 *     -XX:CompileCommand=exclude,*::check -XX:+DoEscapeAnalysis -Xbatch
42 *     -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
43 *     compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
44 */
45
46package compiler.jvmci.compilerToVM;
47
48import compiler.jvmci.common.CTVMUtilities;
49import compiler.testlibrary.CompilerUtils;
50import jdk.vm.ci.hotspot.CompilerToVMHelper;
51import jdk.test.lib.Asserts;
52import sun.hotspot.WhiteBox;
53import java.lang.reflect.Method;
54import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
55import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
56
57public class MaterializeVirtualObjectTest {
58    private static final WhiteBox WB = WhiteBox.getWhiteBox();
59    private static final Method METHOD;
60    private static final HotSpotResolvedJavaMethodImpl RESOLVED_METHOD;
61    private static final boolean INVALIDATE = Boolean.getBoolean(
62            "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
63
64    static {
65        try {
66            METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod(
67                    "testFrame", String.class, boolean.class);
68        } catch (NoSuchMethodException e) {
69            throw new Error("Can't get executable for test method", e);
70        }
71        RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD);
72    }
73
74    public static void main(String[] args) {
75        int levels[] = CompilerUtils.getAvailableCompilationLevels();
76        // we need compilation level 4 to use EscapeAnalysis
77        if (levels.length < 1 || levels[levels.length - 1] != 4) {
78            System.out.println("INFO: Test needs compilation level 4 to"
79                    + " be available. Skipping.");
80        } else {
81            new MaterializeVirtualObjectTest().test();
82        }
83    }
84
85    private static String getName() {
86        return "CASE: invalidate=" + INVALIDATE;
87    }
88
89    private void test() {
90        System.out.println(getName());
91        Asserts.assertFalse(WB.isMethodCompiled(METHOD), getName()
92                + " : method unexpectedly compiled");
93        /* need to call testFrame at least once to be able to compile it, so
94           calling with materialize=false, because testFrame is not compiled */
95        testFrame("someString", /* materialize= */ false);
96        WB.enqueueMethodForCompilation(METHOD, 4);
97        Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
98                + "Method unexpectedly not compiled");
99        // calling with materialize=true to materialize compiled testFrame
100        testFrame("someString", /* materialize= */ true);
101    }
102
103    private void testFrame(String str, boolean materialize) {
104        Helper helper = new Helper(str);
105        check(materialize);
106        Asserts.assertTrue((helper.string != null) && (this != null)
107                && (helper != null), getName() + " : some locals are null");
108    }
109
110    private void check(boolean materialize) {
111        // Materialize virtual objects on last invocation
112        if (materialize) {
113            HotSpotStackFrameReference hsFrame = CompilerToVMHelper
114                    .getNextStackFrame(/* topmost frame */ null,
115                            new HotSpotResolvedJavaMethodImpl[]{
116                                RESOLVED_METHOD}, /* don't skip any */ 0);
117            Asserts.assertNotNull(hsFrame, getName() + " : got null frame");
118            Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
119                    + "Test method should be compiled");
120            Asserts.assertTrue(hsFrame.hasVirtualObjects(), getName()
121                    + ": has no virtual object before materialization");
122            CompilerToVMHelper.materializeVirtualObjects(hsFrame, INVALIDATE);
123            Asserts.assertFalse(hsFrame.hasVirtualObjects(), getName()
124                    + " : has virtual object after materialization");
125            Asserts.assertEQ(WB.isMethodCompiled(METHOD), !INVALIDATE, getName()
126                    + " : unexpected compiled status");
127        }
128    }
129
130    private class Helper {
131        public String string;
132
133        public Helper(String s) {
134            this.string = s;
135        }
136    }
137}
138