MaterializeVirtualObjectTest.java revision 12657:6ef01bd40ce2 
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.internal.vm.ci/jdk.vm.ci.hotspot
36 *          jdk.internal.vm.ci/jdk.vm.ci.code
37 *          jdk.internal.vm.ci/jdk.vm.ci.meta
38 *
39 * @build jdk.internal.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 -Xbatch -Xbootclasspath/a:.
43 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
44 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
45 *                   -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
46 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
47 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
48 *                   -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
49 *                   -XX:+DoEscapeAnalysis -XX:-UseCounterDecay
50 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=true
51 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
52 *                   compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
53 * @run main/othervm -Xmixed -Xbatch -Xbootclasspath/a:.
54 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
55 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
56 *                   -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
57 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
58 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
59 *                   -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
60 *                   -XX:+DoEscapeAnalysis -XX:-UseCounterDecay
61 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=false
62 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
63 *                   compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
64 * @run main/othervm -Xmixed -Xbatch -Xbootclasspath/a:.
65 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
66 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
67 *                   -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
68 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
69 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
70 *                   -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
71 *                   -XX:+DoEscapeAnalysis -XX:-UseCounterDecay
72 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=true
73 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
74 *                   compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
75 * @run main/othervm -Xmixed -Xbatch -Xbootclasspath/a:.
76 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
77 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
78 *                   -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
79 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
80 *                   -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
81 *                   -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
82 *                   -XX:+DoEscapeAnalysis -XX:-UseCounterDecay
83 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=false
84 *                   -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
85 *                   compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
86 */
87
88package compiler.jvmci.compilerToVM;
89
90import compiler.jvmci.common.CTVMUtilities;
91import compiler.testlibrary.CompilerUtils;
92import compiler.whitebox.CompilerWhiteBoxTest;
93import jdk.test.lib.Asserts;
94import jdk.vm.ci.hotspot.CompilerToVMHelper;
95import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
96import jdk.vm.ci.meta.ResolvedJavaMethod;
97import sun.hotspot.WhiteBox;
98
99import java.lang.reflect.Method;
100
101public class MaterializeVirtualObjectTest {
102    private static final WhiteBox WB;
103    private static final boolean INVALIDATE;
104    private static final int COMPILE_THRESHOLD;
105    private static final Method MATERIALIZED_METHOD;
106    private static final Method NOT_MATERIALIZED_METHOD;
107    private static final ResolvedJavaMethod MATERIALIZED_RESOLVED;
108    private static final ResolvedJavaMethod NOT_MATERIALIZED_RESOLVED;
109    private static final boolean MATERIALIZE_FIRST;
110
111    static {
112        Method method1;
113        Method method2;
114        WB = WhiteBox.getWhiteBox();
115        try {
116            method1 = MaterializeVirtualObjectTest.class.getDeclaredMethod("testFrame",
117                    String.class, int.class);
118            method2 = MaterializeVirtualObjectTest.class.getDeclaredMethod("testFrame2",
119                    String.class, int.class);
120        } catch (NoSuchMethodException e) {
121            throw new Error("Can't get executable for test method", e);
122        }
123        ResolvedJavaMethod resolved1;
124        ResolvedJavaMethod resolved2;
125        resolved1 = CTVMUtilities.getResolvedMethod(method1);
126        resolved2 = CTVMUtilities.getResolvedMethod(method2);
127        INVALIDATE = Boolean.getBoolean(
128                "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
129        COMPILE_THRESHOLD = WB.getBooleanVMFlag("TieredCompilation")
130                ? CompilerWhiteBoxTest.THRESHOLD
131                : CompilerWhiteBoxTest.THRESHOLD * 2;
132        MATERIALIZE_FIRST = Boolean.getBoolean(
133                "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst");
134        MATERIALIZED_RESOLVED = MATERIALIZE_FIRST ? resolved1 : resolved2;
135        NOT_MATERIALIZED_RESOLVED = MATERIALIZE_FIRST ? resolved2 : resolved1;
136        MATERIALIZED_METHOD = MATERIALIZE_FIRST ? method1 : method2;
137        NOT_MATERIALIZED_METHOD = MATERIALIZE_FIRST ? method2 : method1;
138    }
139
140    public static void main(String[] args) {
141        int levels[] = CompilerUtils.getAvailableCompilationLevels();
142        // we need compilation level 4 to use EscapeAnalysis
143        if (levels.length < 1 || levels[levels.length - 1] != 4) {
144            System.out.println("INFO: Test needs compilation level 4 to"
145                    + " be available. Skipping.");
146        } else {
147            new MaterializeVirtualObjectTest().test();
148        }
149    }
150
151    private static String getName() {
152        return "CASE: invalidate=" + INVALIDATE + ", materializedMethod="
153                + (MATERIALIZE_FIRST ? "testFrame" : "testFrame2")
154                + ", notMaterializedMethod="
155                + (MATERIALIZE_FIRST ? "testFrame2" : "testFrame");
156    }
157
158    private void test() {
159        System.out.println(getName());
160        Asserts.assertFalse(WB.isMethodCompiled(MATERIALIZED_METHOD),
161                getName() + " : materialized method is compiled");
162        Asserts.assertFalse(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD),
163                getName() + " : not materialized method is compiled");
164        for (int i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
165            testFrame("someString", i);
166        }
167        Asserts.assertTrue(WB.isMethodCompiled(MATERIALIZED_METHOD), getName()
168                + " : materialized method not compiled");
169        Asserts.assertTrue(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD),
170                getName() + " : not materialized method not compiled");
171        testFrame("someString", /* materialize */ CompilerWhiteBoxTest.THRESHOLD);
172    }
173
174    private void testFrame(String str, int iteration) {
175        Helper helper = new Helper(str);
176        testFrame2(str, iteration);
177        Asserts.assertTrue((helper.string != null) && (this != null)
178                && (helper != null), String.format("%s : some locals are null", getName()));
179     }
180
181    private void testFrame2(String str, int iteration) {
182        Helper helper = new Helper(str);
183        recurse(2, iteration);
184        Asserts.assertTrue((helper.string != null) && (this != null)
185                && (helper != null), String.format("%s : some locals are null", getName()));
186    }
187
188    private void recurse(int depth, int iteration) {
189        if (depth == 0) {
190            check(iteration);
191        } else {
192            Integer s = new Integer(depth);
193            recurse(depth - 1, iteration);
194            Asserts.assertEQ(s.intValue(), depth,
195                    String.format("different values: %s != %s", s.intValue(), depth));
196        }
197    }
198
199    private void check(int iteration) {
200        // Materialize virtual objects on last invocation
201        if (iteration == COMPILE_THRESHOLD) {
202            // get frames and check not-null
203            HotSpotStackFrameReference materialized = CompilerToVMHelper.getNextStackFrame(
204                    /* topmost frame */ null, new ResolvedJavaMethod[]{MATERIALIZED_RESOLVED},
205                    /* don't skip any */ 0);
206            Asserts.assertNotNull(materialized, getName()
207                    + " : got null frame for materialized method");
208            HotSpotStackFrameReference notMaterialized = CompilerToVMHelper.getNextStackFrame(
209                    /* topmost frame */ null, new ResolvedJavaMethod[]{NOT_MATERIALIZED_RESOLVED},
210                    /* don't skip any */ 0);
211            Asserts.assertNE(materialized, notMaterialized,
212                    "Got same frame pointer for both tested frames");
213            Asserts.assertNotNull(notMaterialized, getName()
214                    + " : got null frame for not materialized method");
215            // check that frames has virtual objects before materialization stage
216            Asserts.assertTrue(materialized.hasVirtualObjects(), getName()
217                    + ": materialized frame has no virtual object before materialization");
218            Asserts.assertTrue(notMaterialized.hasVirtualObjects(), getName()
219                    + ": notMaterialized frame has no virtual object before materialization");
220            // materialize
221            CompilerToVMHelper.materializeVirtualObjects(materialized, INVALIDATE);
222            // check that only not materialized frame has virtual objects
223            Asserts.assertFalse(materialized.hasVirtualObjects(), getName()
224                    + " : materialized has virtual object after materialization");
225            Asserts.assertTrue(notMaterialized.hasVirtualObjects(), getName()
226                    + " : notMaterialized has no virtual object after materialization");
227            // check that materialized frame was deoptimized in case invalidate=true
228            Asserts.assertEQ(WB.isMethodCompiled(MATERIALIZED_METHOD), !INVALIDATE, getName()
229                    + " : materialized method has unexpected compiled status");
230            // check that not materialized frame wasn't deoptimized
231            Asserts.assertTrue(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD), getName()
232                    + " : not materialized method has unexpected compiled status");
233        }
234    }
235
236    private class Helper {
237        public String string;
238
239        public Helper(String s) {
240            this.string = s;
241        }
242    }
243}
244