GetLocalVariableTableTest.java revision 12772:fbb9c8026495 
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 * @library /test/lib /
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 * @modules java.base/jdk.internal.org.objectweb.asm
32 *          java.base/jdk.internal.org.objectweb.asm.tree
33 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
34 *          jdk.internal.vm.ci/jdk.vm.ci.code
35 * @clean compiler.jvmci.compilerToVM.*
36 * @compile -g DummyInterface.java
37 * @compile -g DummyAbstractClass.java
38 * @compile -g DummyClass.java
39 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
40 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
41 *                   -Djvmci.Compiler=null
42 *                   compiler.jvmci.compilerToVM.GetLocalVariableTableTest
43 * @clean compiler.jvmci.compilerToVM.*
44 */
45
46package compiler.jvmci.compilerToVM;
47
48import compiler.jvmci.common.CTVMUtilities;
49import jdk.test.lib.Asserts;
50import jdk.vm.ci.hotspot.CompilerToVMHelper;
51import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
52
53import java.lang.reflect.Executable;
54import java.util.HashMap;
55import java.util.Map;
56
57public class GetLocalVariableTableTest {
58
59    public static final int MAIN_LOCALS_COUNT = 0;
60    public static final int INSTANCE_LOCALS_COUNT = 4;
61    public static final int EMPTY_INSTANCE_COUNT = 1;
62    public static final int EMPTY_STATIC_COUNT = 0;
63    public static final int ABSTRACT_INHERIT_LOCALS_COUNT = 2;
64    public static final int DEFAULTFUNC_LOCALS_COUNT = 4;
65
66    public static void main(String[] args) {
67        Map<Executable, Integer> testCases = createTestCases();
68        testCases.forEach(GetLocalVariableTableTest::runSanityTest);
69    }
70
71    private static Map<Executable, Integer> createTestCases() {
72        HashMap<Executable, Integer> methods = new HashMap<>();
73        try {
74            Class<?> aClass;
75
76            aClass = GetLocalVariableTableTest.class;
77            methods.put(aClass.getDeclaredMethod("main", String[].class),
78                    MAIN_LOCALS_COUNT);
79
80            aClass = DummyClass.class;
81            methods.put(aClass.getMethod("dummyInstanceFunction"),
82                    INSTANCE_LOCALS_COUNT);
83            methods.put(aClass.getMethod("dummyEmptyInstanceFunction"),
84                    EMPTY_INSTANCE_COUNT);
85            methods.put(aClass.getMethod("dummyEmptyStaticFunction"),
86                    EMPTY_STATIC_COUNT);
87            methods.put(aClass.getMethod("dummyFunction"),
88                    EMPTY_INSTANCE_COUNT);
89            methods.put(aClass.getMethod("dummyAbstractFunction"),
90                    ABSTRACT_INHERIT_LOCALS_COUNT);
91
92            aClass = DummyInterface.class;
93            methods.put(aClass.getMethod("dummyFunction"), EMPTY_STATIC_COUNT);
94            methods.put(aClass.getMethod("dummyDefaultFunction", int.class,
95                    int.class), DEFAULTFUNC_LOCALS_COUNT);
96
97            aClass = DummyAbstractClass.class;
98            methods.put(aClass.getMethod("dummyAbstractFunction"), 0);
99        } catch (NoSuchMethodException e) {
100            throw new Error("TEST BUG", e);
101        }
102        return methods;
103    }
104
105    private static void runSanityTest(Executable aMethod,
106                                      Integer expectedTableLength) {
107        HotSpotResolvedJavaMethod method = CTVMUtilities
108                .getResolvedMethod(aMethod);
109
110        int tblLength = CompilerToVMHelper.getLocalVariableTableLength(method);
111        Asserts.assertEQ(tblLength, expectedTableLength, aMethod + " : incorrect "
112                + "local variable table length.");
113
114        long tblStart = CompilerToVMHelper.getLocalVariableTableStart(method);
115        if (tblLength > 0) {
116            Asserts.assertNE(tblStart, 0L, aMethod + " : local variable table starts"
117                    + " at 0 with length " + tblLength);
118        }
119    }
120}
121