1 /* 2 * Copyright (c) 2015, 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 package jdk.test.lib.jittester.factories; 25 26 import java.util.ArrayList; 27 import jdk.test.lib.jittester.IRNode; 28 import jdk.test.lib.jittester.LocalVariable; 29 import jdk.test.lib.jittester.ProductionFailedException; 30 import jdk.test.lib.jittester.Symbol; 31 import jdk.test.lib.jittester.SymbolTable; 32 import jdk.test.lib.jittester.Type; 33 import jdk.test.lib.jittester.VariableInfo; 34 import jdk.test.lib.jittester.utils.PseudoRandom; 35 36 class LocalVariableFactory extends Factory { 37 private final Type type; 38 private final int flags; 39 40 LocalVariableFactory(Type type, int flags) { 41 this.type = type; 42 this.flags = flags; 43 } 44 45 @Override 46 public IRNode produce() throws ProductionFailedException { 47 // Get the variables of the requested type from SymbolTable 48 ArrayList<Symbol> allVariables = new ArrayList<>(SymbolTable.get(type, VariableInfo.class)); 49 if (!allVariables.isEmpty()) { 50 PseudoRandom.shuffle(allVariables); 51 for (Symbol symbol : allVariables) { 52 VariableInfo varInfo = (VariableInfo) symbol; 53 if ((varInfo.flags & VariableInfo.FINAL) == (flags & VariableInfo.FINAL) 54 && (varInfo.flags & VariableInfo.INITIALIZED) == (flags & VariableInfo.INITIALIZED) 55 && (varInfo.flags & VariableInfo.LOCAL) > 0) { 56 return new LocalVariable(varInfo); 57 } 58 } 59 } 60 throw new ProductionFailedException(); 61 } 62 }