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 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 39 * @build sun.hotspot.WhiteBox 40 * compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest 41 * @run main ClassFileInstaller sun.hotspot.WhiteBox 42 * sun.hotspot.WhiteBox$WhiteBoxPermission 43 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 44 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 45 * compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest 46 */ 47 48 package compiler.jvmci.compilerToVM; 49 50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes; 51 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry; 52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator; 53 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; 54 import jdk.test.lib.Asserts; 55 import jdk.vm.ci.hotspot.CompilerToVMHelper; 56 import jdk.vm.ci.meta.ConstantPool; 57 58 import java.util.HashMap; 59 import java.util.Map; 60 61 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_STRING; 62 63 /** 64 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolvePossiblyCachedConstantInPool} method 65 */ 66 public class ResolvePossiblyCachedConstantInPoolTest { 67 68 public static void main(String[] args) throws Exception { 69 Map<ConstantTypes, Validator> typeTests = new HashMap<>(); 70 typeTests.put(CONSTANT_STRING, ResolvePossiblyCachedConstantInPoolTest::validateString); 71 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); 72 // The next "Class.forName" is here for the following reason. 73 // When class is initialized, constant pool cache is available. 74 // This method works only with cached constant pool. 75 for (DummyClasses dummy : DummyClasses.values()) { 76 Class.forName(dummy.klass.getName()); 77 } 78 testCase.test(); 79 } 80 81 private static void validateString(ConstantPool constantPoolCTVM, 82 ConstantTypes cpType, 83 DummyClasses dummyClass, 84 int cpi) { 85 TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi); 86 if (entry == null) { 87 return; 88 } 89 int index = cpi; 90 String cached = ""; 91 int cpci = dummyClass.getCPCacheIndex(cpi); 92 if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 93 index = cpci; 94 cached = "cached "; 95 } 96 Object constantInPool = CompilerToVMHelper.resolvePossiblyCachedConstantInPool(constantPoolCTVM, index); 97 String stringToVerify = (String) constantInPool; 98 String stringToRefer = entry.name; 99 if (stringToRefer.equals("") && cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 100 stringToRefer = null; // tested method returns null for cached empty strings 101 } 102 String msg = String.format("Wrong string accessed by %sconstant pool index %d", cached, index); 103 Asserts.assertEQ(stringToRefer, stringToVerify, msg); 104 } 105 }