1/* 2 * Copyright (c) 2015, 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 24package jdk.test.lib.jittester.factories; 25 26import jdk.test.lib.util.Pair; 27import jdk.test.lib.jittester.BinaryOperator; 28import jdk.test.lib.jittester.IRNode; 29import jdk.test.lib.jittester.OperatorKind; 30import jdk.test.lib.jittester.ProductionFailedException; 31import jdk.test.lib.jittester.SymbolTable; 32import jdk.test.lib.jittester.Type; 33import jdk.test.lib.jittester.types.TypeKlass; 34import jdk.test.lib.jittester.utils.PseudoRandom; 35 36abstract class BinaryOperatorFactory extends OperatorFactory<BinaryOperator> { 37 protected final OperatorKind opKind; 38 protected final Type resultType; 39 protected final Type ownerClass; 40 41 protected BinaryOperatorFactory(OperatorKind opKind, long complexityLimit, int operatorLimit, 42 Type ownerClass, Type resultType, boolean exceptionSafe, boolean noconsts) { 43 super(opKind.priority, complexityLimit, operatorLimit, exceptionSafe, noconsts); 44 this.opKind = opKind; 45 this.resultType = resultType; 46 this.ownerClass = ownerClass; 47 } 48 49 protected abstract boolean isApplicable(Type resultType); 50 51 protected abstract Pair<Type, Type> generateTypes(); 52 53 protected BinaryOperator generateProduction(Type leftType, Type rightType) throws ProductionFailedException { 54 int leftOpLimit = (int) (PseudoRandom.random() * (operatorLimit - 1)); 55 int rightOpLimit = operatorLimit - 1 - leftOpLimit; 56 long leftComplLimit = (long) (PseudoRandom.random() * (complexityLimit - 1)); 57 long rightComplLimit = complexityLimit - 1 - leftComplLimit; 58 if (leftOpLimit == 0 || rightOpLimit == 0 || leftComplLimit == 0 || rightComplLimit == 0) { 59 throw new ProductionFailedException(); 60 } 61 boolean swap = PseudoRandom.randomBoolean(); 62 IRNodeBuilder builder = new IRNodeBuilder().setExceptionSafe(exceptionSafe) 63 .setOwnerKlass((TypeKlass) ownerClass) 64 .setNoConsts(!swap && noconsts); 65 IRNode leftExpr = builder.setComplexityLimit(leftComplLimit) 66 .setOperatorLimit(leftOpLimit) 67 .setResultType(leftType) 68 .getExpressionFactory() 69 .produce(); 70 IRNode rightExpr = builder.setComplexityLimit(rightComplLimit) 71 .setOperatorLimit(rightOpLimit) 72 .setResultType(rightType) 73 .getExpressionFactory() 74 .produce(); 75 return new BinaryOperator(opKind, resultType, leftExpr, rightExpr); 76 } 77 78 @Override 79 public final BinaryOperator produce() throws ProductionFailedException { 80 if (!isApplicable(resultType)) { 81 //avoid implicit use of resultType.toString() 82 throw new ProductionFailedException("Type " + resultType.getName() + " is not applicable by " + getClass().getName()); 83 } 84 85 Pair<Type, Type> types; 86 try { 87 types = generateTypes(); 88 } catch (RuntimeException ex) { 89 throw new ProductionFailedException(ex.getMessage()); 90 } 91 92 try { 93 SymbolTable.push(); 94 BinaryOperator p = generateProduction(types.first, types.second); 95 SymbolTable.merge(); 96 return p; 97 } catch (ProductionFailedException e) { 98 SymbolTable.pop(); 99 throw e; 100 } 101 } 102} 103