LookupKlassRefIndexInPoolTest.java revision 11477:a709f2ee79e5 
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/*
26 * @test
27 * @bug 8138708
28 * @requires (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
29 * @library /testlibrary /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 *          java.base/jdk.internal.reflect
33 *          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.meta
37 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
38 * @build sun.hotspot.WhiteBox
39 *        compiler.jvmci.compilerToVM.LookupKlassRefIndexInPoolTest
40 * @run main ClassFileInstaller sun.hotspot.WhiteBox
41 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
42 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
43 *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
44 *                   compiler.jvmci.compilerToVM.LookupKlassRefIndexInPoolTest
45 */
46
47package compiler.jvmci.compilerToVM;
48
49import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
50import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
51import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
52import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
53import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
54import java.util.HashMap;
55import java.util.Map;
56import jdk.test.lib.Asserts;
57import jdk.vm.ci.hotspot.CompilerToVMHelper;
58import jdk.vm.ci.meta.ConstantPool;
59
60/**
61 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupKlassRefIndexInPool} method
62 */
63public class LookupKlassRefIndexInPoolTest {
64
65    public static void main(String[] args) throws Exception {
66        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
67        typeTests.put(CONSTANT_METHODREF, LookupKlassRefIndexInPoolTest::validate);
68        typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupKlassRefIndexInPoolTest::validate);
69        typeTests.put(CONSTANT_FIELDREF, LookupKlassRefIndexInPoolTest::validate);
70        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
71        testCase.test();
72        // The next "Class.forName" and repeating "testCase.test()"
73        // are here for the following reason.
74        // The first test run is without dummy class initialization,
75        // which means no constant pool cache exists.
76        // The second run is with initialized class (with constant pool cache available).
77        // Some CompilerToVM methods require different input
78        // depending on whether CP cache exists or not.
79        for (DummyClasses dummy : DummyClasses.values()) {
80            Class.forName(dummy.klass.getName());
81        }
82        testCase.test();
83    }
84
85    private static void validate(ConstantPool constantPoolCTVM,
86                                 ConstantTypes cpType,
87                                 DummyClasses dummyClass,
88                                 int cpi) {
89        TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
90        if (entry == null) {
91            return;
92        }
93        int index = cpi;
94        String cached = "";
95        int cpci = dummyClass.getCPCacheIndex(cpi);
96        if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
97            index = cpci;
98            cached = "cached ";
99        }
100        int indexToVerify = CompilerToVMHelper.lookupKlassRefIndexInPool(constantPoolCTVM, index);
101        int indexToRefer = dummyClass.constantPoolSS.getClassRefIndexAt(cpi);
102        String msg = String.format("Wrong class index returned by lookupKlassRefIndexInPool method "
103                                           + "applied to %sconstant pool index %d",
104                                   cached,
105                                   index);
106        Asserts.assertEQ(indexToRefer, indexToVerify, msg);
107    }
108}
109