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.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.meta 37 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 38 * @build sun.hotspot.WhiteBox 39 * compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest 40 * @run main ClassFileInstaller sun.hotspot.WhiteBox 41 * sun.hotspot.WhiteBox$WhiteBoxPermission 42 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 43 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 44 * compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest 45 */ 46 47 package compiler.jvmci.compilerToVM; 48 49 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; 50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes; 51 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*; 52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry; 53 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator; 54 import java.util.HashMap; 55 import java.util.Map; 56 import jdk.test.lib.Asserts; 57 import jdk.vm.ci.hotspot.CompilerToVMHelper; 58 import jdk.vm.ci.meta.ConstantPool; 59 60 /** 61 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolvePossiblyCachedConstantInPool} method 62 */ 63 public class ResolvePossiblyCachedConstantInPoolTest { 64 65 public static void main(String[] args) throws Exception { 66 Map<ConstantTypes, Validator> typeTests = new HashMap<>(); 67 typeTests.put(CONSTANT_STRING, ResolvePossiblyCachedConstantInPoolTest::validateString); 68 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); 69 // The next "Class.forName" is here for the following reason. 70 // When class is initialized, constant pool cache is available. 71 // This method works only with cached constant pool. 72 for (DummyClasses dummy : DummyClasses.values()) { 73 Class.forName(dummy.klass.getName()); 74 } 75 testCase.test(); 76 } 77 78 private static void validateString(ConstantPool constantPoolCTVM, 79 ConstantTypes cpType, 80 DummyClasses dummyClass, 81 int cpi) { 82 TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi); 83 if (entry == null) { 84 return; 85 } 86 int index = cpi; 87 String cached = ""; 88 int cpci = dummyClass.getCPCacheIndex(cpi); 89 if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 90 index = cpci; 91 cached = "cached "; 92 } 93 Object constantInPool = CompilerToVMHelper.resolvePossiblyCachedConstantInPool(constantPoolCTVM, index); 94 String stringToVerify = (String) constantInPool; 95 String stringToRefer = entry.name; 96 if (stringToRefer.equals("") && cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 97 stringToRefer = null; // tested method returns null for cached empty strings 98 } 99 String msg = String.format("Wrong string accessed by %sconstant pool index %d", cached, index); 100 Asserts.assertEQ(stringToRefer, stringToVerify, msg); 101 } 102 }