author | iignatyev |
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/* |
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* Copyright (c) 2016, 2018, 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 vm.jvmci |
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* @library /test/lib / |
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* @library ../common/patches |
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* @modules java.base/jdk.internal.access |
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* java.base/jdk.internal.reflect |
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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.internal.vm.ci/jdk.vm.ci.hotspot |
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* jdk.internal.vm.ci/jdk.vm.ci.runtime |
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* jdk.internal.vm.ci/jdk.vm.ci.meta |
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* |
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* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox |
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* @run driver 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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* -Djvmci.Compiler=null |
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* compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest |
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*/ |
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package compiler.jvmci.compilerToVM; |
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import 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 compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; |
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import jdk.test.lib.Asserts; |
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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 java.util.HashMap; |
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import java.util.Map; |
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import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_STRING; |
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/** |
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* Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolvePossiblyCachedConstantInPool} method |
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*/ |
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public class ResolvePossiblyCachedConstantInPoolTest { |
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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_STRING, ResolvePossiblyCachedConstantInPoolTest::validateString); |
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ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); |
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// The next "Class.forName" is here for the following reason. |
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// When class is initialized, constant pool cache is available. |
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// This method works only with cached constant pool. |
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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 validateString(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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Object constantInPool = CompilerToVMHelper.resolvePossiblyCachedConstantInPool(constantPoolCTVM, index); |
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String stringToVerify = (String) constantInPool; |
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String stringToRefer = entry.name; |
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if (stringToRefer.equals("") && cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { |
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stringToRefer = null; // tested method returns null for cached empty strings |
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} |
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String msg = String.format("Wrong string accessed by %sconstant pool index %d", cached, index); |
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Asserts.assertEQ(stringToRefer, stringToVerify, msg); |
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} |
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} |