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 * @test 26 * @bug 8138708 27 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64") 28 * @library /testlibrary /test/lib / 29 * @library ../common/patches 30 * @modules java.base/jdk.internal.misc 31 * java.base/jdk.internal.org.objectweb.asm 32 * java.base/jdk.internal.org.objectweb.asm.tree 33 * jdk.vm.ci/jdk.vm.ci.meta 34 * jdk.vm.ci.hotspot/jdk.vm.ci.hotspot 35 * @build jdk.vm.ci.hotspot/jdk.vm.ci.hotspot.CompilerToVMHelper 36 * @build sun.hotspot.WhiteBox 37 * compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest 38 * @run main ClassFileInstaller sun.hotspot.WhiteBox 39 * sun.hotspot.WhiteBox$WhiteBoxPermission 40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 41 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 42 * compiler.jvmci.compilerToVM.ResolvePossiblyCachedConstantInPoolTest 43 */ 44 45 package compiler.jvmci.compilerToVM; 46 47 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; 48 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes; 49 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*; 50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry; 51 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator; 52 import java.util.HashMap; 53 import java.util.Map; 54 import jdk.test.lib.Asserts; 55 import jdk.vm.ci.hotspot.CompilerToVMHelper; 56 import jdk.vm.ci.meta.ConstantPool; 57 58 /** 59 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolvePossiblyCachedConstantInPool} method 60 */ 61 public class ResolvePossiblyCachedConstantInPoolTest { 62 63 public static void main(String[] args) throws Exception { 64 Map<ConstantTypes, Validator> typeTests = new HashMap<>(); 65 typeTests.put(CONSTANT_STRING, ResolvePossiblyCachedConstantInPoolTest::validateString); 66 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); 67 // The next "Class.forName" is here for the following reason. 68 // When class is initialized, constant pool cache is available. 69 // This method works only with cached constant pool. 70 for (DummyClasses dummy : DummyClasses.values()) { 71 Class.forName(dummy.klass.getName()); 72 } 73 testCase.test(); 74 } 75 76 private static void validateString(ConstantPool constantPoolCTVM, 77 ConstantTypes cpType, 78 DummyClasses dummyClass, 79 int cpi) { 80 TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi); 81 if (entry == null) { 82 return; 83 } 84 int index = cpi; 85 String cached = ""; 86 int cpci = dummyClass.getCPCacheIndex(cpi); 87 if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 88 index = cpci; 89 cached = "cached "; 90 } 91 Object constantInPool = CompilerToVMHelper.resolvePossiblyCachedConstantInPool(constantPoolCTVM, index); 92 String stringToVerify = (String) constantInPool; 93 String stringToRefer = entry.name; 94 if (stringToRefer.equals("") && cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 95 stringToRefer = null; // tested method returns null for cached empty strings 96 } 97 String msg = String.format("Wrong string accessed by %sconstant pool index %d", cached, index); 98 Asserts.assertEQ(stringToRefer, stringToVerify, msg); 99 } 100 }