MaterializeVirtualObjectTest.java revision 12592:ab3d4589f4d8 
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 *         & (vm.compMode != "Xcomp" | vm.opt.TieredCompilation == null | vm.opt.TieredCompilation == true)
29 * @summary no "-Xcomp -XX:-TieredCompilation" combination allowed until JDK-8140018 is resolved
30 * @library / /test/lib
31 * @library ../common/patches
32 * @modules java.base/jdk.internal.misc
33 * @modules java.base/jdk.internal.org.objectweb.asm
34 *          java.base/jdk.internal.org.objectweb.asm.tree
35 *          jdk.vm.ci/jdk.vm.ci.hotspot
36 *          jdk.vm.ci/jdk.vm.ci.code
37 *          jdk.vm.ci/jdk.vm.ci.meta
38 *
39 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
40 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
41 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
42 * @run main/othervm -Xmixed -Xbootclasspath/a:.
43 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
44 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
45 *                   -XX:CompileCommand=exclude,*::check
46 *                   -XX:+DoEscapeAnalysis -XX:-UseCounterDecay
47 *                   -XX:CompileCommand=dontinline,compiler/jvmci/compilerToVM/MaterializeVirtualObjectTest,testFrame
48 *                   -XX:CompileCommand=inline,compiler/jvmci/compilerToVM/MaterializeVirtualObjectTest,recurse
49 *                   -Xbatch
50 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
51 *                   compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
52 * @run main/othervm -Xmixed -Xbootclasspath/a:.
53 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
54 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
55 *                   -XX:CompileCommand=exclude,*::check
56 *                   -XX:+DoEscapeAnalysis -XX:-UseCounterDecay
57 *                   -Xbatch
58 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
59 *                   compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
60 */
61
62package compiler.jvmci.compilerToVM;
63
64import compiler.jvmci.common.CTVMUtilities;
65import compiler.testlibrary.CompilerUtils;
66import compiler.whitebox.CompilerWhiteBoxTest;
67import jdk.test.lib.Asserts;
68import jdk.vm.ci.hotspot.CompilerToVMHelper;
69import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
70import jdk.vm.ci.meta.ResolvedJavaMethod;
71import sun.hotspot.WhiteBox;
72
73import java.lang.reflect.Method;
74
75public class MaterializeVirtualObjectTest {
76    private static final WhiteBox WB;
77    private static final Method METHOD;
78    private static final ResolvedJavaMethod RESOLVED_METHOD;
79    private static final boolean INVALIDATE;
80    private static final int COMPILE_THRESHOLD;
81
82    static {
83        WB = WhiteBox.getWhiteBox();
84        try {
85            METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod(
86                    "testFrame", String.class, int.class);
87        } catch (NoSuchMethodException e) {
88            throw new Error("Can't get executable for test method", e);
89        }
90        RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD);
91        INVALIDATE = Boolean.getBoolean(
92                "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
93        COMPILE_THRESHOLD = WB.getBooleanVMFlag("TieredCompilation")
94                ? CompilerWhiteBoxTest.THRESHOLD
95                : CompilerWhiteBoxTest.THRESHOLD * 2;
96    }
97
98    public static void main(String[] args) {
99        int levels[] = CompilerUtils.getAvailableCompilationLevels();
100        // we need compilation level 4 to use EscapeAnalysis
101        if (levels.length < 1 || levels[levels.length - 1] != 4) {
102            System.out.println("INFO: Test needs compilation level 4 to"
103                    + " be available. Skipping.");
104        } else {
105            new MaterializeVirtualObjectTest().test();
106        }
107    }
108
109    private static String getName() {
110        return "CASE: invalidate=" + INVALIDATE;
111    }
112
113    private void test() {
114        System.out.println(getName());
115        Asserts.assertFalse(WB.isMethodCompiled(METHOD), getName()
116                + " : method unexpectedly compiled");
117        /* need to trigger compilation by multiple method invocations
118           in order to have method profile data to be gathered */
119        for (int i = 0; i < COMPILE_THRESHOLD; i++) {
120            testFrame("someString", i);
121        }
122        Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
123                + "Method unexpectedly not compiled");
124        Asserts.assertTrue(WB.getMethodCompilationLevel(METHOD) == 4, getName()
125                + "Method not compiled at level 4");
126        testFrame("someString", COMPILE_THRESHOLD);
127    }
128
129    private void testFrame(String str, int iteration) {
130        Helper helper = new Helper(str);
131        recurse(2, iteration);
132        Asserts.assertTrue((helper.string != null) && (this != null)
133                           && (helper != null), String.format("%s : some locals are null", getName()));
134    }
135    private void recurse(int depth, int iteration) {
136        if (depth == 0) {
137            check(iteration);
138        } else {
139            Integer s = new Integer(depth);
140            recurse(depth - 1, iteration);
141            Asserts.assertEQ(s.intValue(), depth, String.format("different values: %s != %s", s.intValue(), depth));
142        }
143    }
144
145    private void check(int iteration) {
146        // Materialize virtual objects on last invocation
147        if (iteration == COMPILE_THRESHOLD) {
148            HotSpotStackFrameReference hsFrame = CompilerToVMHelper
149                    .getNextStackFrame(/* topmost frame */ null,
150                            new ResolvedJavaMethod[]{
151                                RESOLVED_METHOD}, /* don't skip any */ 0);
152            Asserts.assertNotNull(hsFrame, getName() + " : got null frame");
153            Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
154                    + "Test method should be compiled");
155            Asserts.assertTrue(hsFrame.hasVirtualObjects(), getName()
156                    + ": has no virtual object before materialization");
157            CompilerToVMHelper.materializeVirtualObjects(hsFrame, INVALIDATE);
158            Asserts.assertFalse(hsFrame.hasVirtualObjects(), getName()
159                    + " : has virtual object after materialization");
160            Asserts.assertEQ(WB.isMethodCompiled(METHOD), !INVALIDATE, getName()
161                    + " : unexpected compiled status");
162        }
163    }
164
165    private class Helper {
166        public String string;
167
168        public Helper(String s) {
169            this.string = s;
170        }
171    }
172}
173