LookupKlassRefIndexInPoolTest.java revision 12365:d1a00bd8dcca 
1/*
2 * Copyright (c) 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 8138708
27 * @requires vm.jvmci
28 * @library /test/lib /
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 *          java.base/jdk.internal.reflect
32 *          java.base/jdk.internal.org.objectweb.asm
33 *          java.base/jdk.internal.org.objectweb.asm.tree
34 *          jdk.vm.ci/jdk.vm.ci.hotspot
35 *          jdk.vm.ci/jdk.vm.ci.runtime
36 *          jdk.vm.ci/jdk.vm.ci.meta
37 *
38 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
39 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
40 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
41 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
42 *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
43 *                   compiler.jvmci.compilerToVM.LookupKlassRefIndexInPoolTest
44 */
45
46package compiler.jvmci.compilerToVM;
47
48import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
49import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
50import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
51import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
52import jdk.test.lib.Asserts;
53import jdk.vm.ci.hotspot.CompilerToVMHelper;
54import jdk.vm.ci.meta.ConstantPool;
55
56import java.util.HashMap;
57import java.util.Map;
58
59import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_FIELDREF;
60import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_INTERFACEMETHODREF;
61import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODREF;
62
63/**
64 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupKlassRefIndexInPool} method
65 */
66public class LookupKlassRefIndexInPoolTest {
67
68    public static void main(String[] args) throws Exception {
69        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
70        typeTests.put(CONSTANT_METHODREF, LookupKlassRefIndexInPoolTest::validate);
71        typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupKlassRefIndexInPoolTest::validate);
72        typeTests.put(CONSTANT_FIELDREF, LookupKlassRefIndexInPoolTest::validate);
73        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
74        testCase.test();
75        // The next "Class.forName" and repeating "testCase.test()"
76        // are here for the following reason.
77        // The first test run is without dummy class initialization,
78        // which means no constant pool cache exists.
79        // The second run is with initialized class (with constant pool cache available).
80        // Some CompilerToVM methods require different input
81        // depending on whether CP cache exists or not.
82        for (DummyClasses dummy : DummyClasses.values()) {
83            Class.forName(dummy.klass.getName());
84        }
85        testCase.test();
86    }
87
88    private static void validate(ConstantPool constantPoolCTVM,
89                                 ConstantTypes cpType,
90                                 DummyClasses dummyClass,
91                                 int cpi) {
92        TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
93        if (entry == null) {
94            return;
95        }
96        int index = cpi;
97        String cached = "";
98        int cpci = dummyClass.getCPCacheIndex(cpi);
99        if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
100            index = cpci;
101            cached = "cached ";
102        }
103        int indexToVerify = CompilerToVMHelper.lookupKlassRefIndexInPool(constantPoolCTVM, index);
104        int indexToRefer = dummyClass.constantPoolSS.getClassRefIndexAt(cpi);
105        String msg = String.format("Wrong class index returned by lookupKlassRefIndexInPool method "
106                                           + "applied to %sconstant pool index %d",
107                                   cached,
108                                   index);
109        Asserts.assertEQ(indexToRefer, indexToVerify, msg);
110    }
111}
112