hotspot/test/compiler/jvmci/compilerToVM/LookupNameInPoolTest.java
author alanb
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8142968: Module System implementation Summary: Initial integration of JEP 200, JEP 260, JEP 261, and JEP 282 Reviewed-by: acorn, ccheung, coleenp, ctornqvi, dholmes, dsimms, gtriantafill, iklam, jiangli, mgronlun, mseledtsov, cjplummer, sspitsyn, stefank, twisti, hseigel, lfoltan, alanb, mchung, dfazunen Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, harold.seigel@oracle.com, lois.foltan@oracle.com, calvin.cheung@oracle.com, christian.tornqvist@oracle.com, erik.joelsson@oracle.com, george.triantafillou@oracle.com, igor.ignatyev@oracle.com, ioi.lam@oracle.com, james.laskey@oracle.com, jean-francois.denise@oracle.com, jiangli.zhou@oracle.com, markus.gronlund@oracle.com, serguei.spitsyn@oracle.com, staffan.larsen@oracle.com, sundararajan.athijegannathan@oracle.com
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/*
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 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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/*
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 * @test
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 * @bug 8138708
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 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
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 * @library /testlibrary /test/lib /
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 * @library ../common/patches
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 * @modules java.base/jdk.internal.misc
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 *          java.base/jdk.internal.org.objectweb.asm
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 *          java.base/jdk.internal.org.objectweb.asm.tree
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 *          jdk.vm.ci/jdk.vm.ci.hotspot
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 *          jdk.vm.ci/jdk.vm.ci.meta
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 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
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 * @build sun.hotspot.WhiteBox
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 *        compiler.jvmci.compilerToVM.LookupNameInPoolTest
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 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
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 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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 *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
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 *                   compiler.jvmci.compilerToVM.LookupNameInPoolTest
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 */
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package compiler.jvmci.compilerToVM;
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import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
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import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
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import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
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import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
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import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
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import java.util.HashMap;
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import java.util.Map;
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import jdk.vm.ci.hotspot.CompilerToVMHelper;
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import jdk.vm.ci.meta.ConstantPool;
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import jdk.test.lib.Asserts;
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/**
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 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupNameInPool} method
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 */
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public class LookupNameInPoolTest {
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    public static void main(String[] args) throws Exception {
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        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
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        typeTests.put(CONSTANT_METHODREF, LookupNameInPoolTest::validate);
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        typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupNameInPoolTest::validate);
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        typeTests.put(CONSTANT_FIELDREF, LookupNameInPoolTest::validate);
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        typeTests.put(CONSTANT_INVOKEDYNAMIC, LookupNameInPoolTest::validate);
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        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
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        testCase.test();
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        // The next "Class.forName" and repeating "testCase.test()"
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        // are here for the following reason.
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        // The first test run is without dummy class initialization,
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        // which means no constant pool cache exists.
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        // The second run is with initialized class (with constant pool cache available).
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        // Some CompilerToVM methods require different input
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        // depending on whether CP cache exists or not.
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        for (DummyClasses dummy : DummyClasses.values()) {
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            Class.forName(dummy.klass.getName());
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        }
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        testCase.test();
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    }
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    private static void validate(ConstantPool constantPoolCTVM,
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                                 ConstantTypes cpType,
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                                 DummyClasses dummyClass,
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                                 int cpi) {
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        TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
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        if (entry == null) {
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            return;
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        }
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        int index = cpi;
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        String cached = "";
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        int cpci = dummyClass.getCPCacheIndex(cpi);
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        if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
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            index = cpci;
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            cached = "cached ";
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        }
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        String nameToVerify = CompilerToVMHelper.lookupNameInPool(constantPoolCTVM, index);
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        String nameToRefer = entry.name;
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        String msg = String.format("Wrong name accessed by %sconstant pool index %d", cached, index);
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        Asserts.assertEQ(nameToVerify, nameToRefer, msg);
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    }
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}