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