LookupKlassRefIndexInPoolTest.java revision 11701:ee13fc537367 
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.runtime
37 *          jdk.vm.ci/jdk.vm.ci.meta
38 *
39 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
40 * @build sun.hotspot.WhiteBox
41 *        compiler.jvmci.compilerToVM.LookupKlassRefIndexInPoolTest
42 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
43 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
44 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
45 *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
46 *                   compiler.jvmci.compilerToVM.LookupKlassRefIndexInPoolTest
47 */
48
49package compiler.jvmci.compilerToVM;
50
51import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
52import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
53import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
54import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
55import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
56import java.util.HashMap;
57import java.util.Map;
58import jdk.test.lib.Asserts;
59import jdk.vm.ci.hotspot.CompilerToVMHelper;
60import jdk.vm.ci.meta.ConstantPool;
61
62/**
63 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupKlassRefIndexInPool} method
64 */
65public class LookupKlassRefIndexInPoolTest {
66
67    public static void main(String[] args) throws Exception {
68        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
69        typeTests.put(CONSTANT_METHODREF, LookupKlassRefIndexInPoolTest::validate);
70        typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupKlassRefIndexInPoolTest::validate);
71        typeTests.put(CONSTANT_FIELDREF, LookupKlassRefIndexInPoolTest::validate);
72        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
73        testCase.test();
74        // The next "Class.forName" and repeating "testCase.test()"
75        // are here for the following reason.
76        // The first test run is without dummy class initialization,
77        // which means no constant pool cache exists.
78        // The second run is with initialized class (with constant pool cache available).
79        // Some CompilerToVM methods require different input
80        // depending on whether CP cache exists or not.
81        for (DummyClasses dummy : DummyClasses.values()) {
82            Class.forName(dummy.klass.getName());
83        }
84        testCase.test();
85    }
86
87    private static void validate(ConstantPool constantPoolCTVM,
88                                 ConstantTypes cpType,
89                                 DummyClasses dummyClass,
90                                 int cpi) {
91        TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
92        if (entry == null) {
93            return;
94        }
95        int index = cpi;
96        String cached = "";
97        int cpci = dummyClass.getCPCacheIndex(cpi);
98        if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
99            index = cpci;
100            cached = "cached ";
101        }
102        int indexToVerify = CompilerToVMHelper.lookupKlassRefIndexInPool(constantPoolCTVM, index);
103        int indexToRefer = dummyClass.constantPoolSS.getClassRefIndexAt(cpi);
104        String msg = String.format("Wrong class index returned by lookupKlassRefIndexInPool method "
105                                           + "applied to %sconstant pool index %d",
106                                   cached,
107                                   index);
108        Asserts.assertEQ(indexToRefer, indexToVerify, msg);
109    }
110}
111