| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.test.lib.jittester.factories; |
| |
| import jdk.test.lib.util.Pair; |
| import jdk.test.lib.jittester.BinaryOperator; |
| import jdk.test.lib.jittester.IRNode; |
| import jdk.test.lib.jittester.OperatorKind; |
| import jdk.test.lib.jittester.ProductionFailedException; |
| import jdk.test.lib.jittester.SymbolTable; |
| import jdk.test.lib.jittester.Type; |
| import jdk.test.lib.jittester.types.TypeKlass; |
| import jdk.test.lib.jittester.utils.PseudoRandom; |
| |
| abstract class BinaryOperatorFactory extends OperatorFactory<BinaryOperator> { |
| protected final OperatorKind opKind; |
| protected final Type resultType; |
| protected final Type ownerClass; |
| |
| protected BinaryOperatorFactory(OperatorKind opKind, long complexityLimit, int operatorLimit, |
| Type ownerClass, Type resultType, boolean exceptionSafe, boolean noconsts) { |
| super(opKind.priority, complexityLimit, operatorLimit, exceptionSafe, noconsts); |
| this.opKind = opKind; |
| this.resultType = resultType; |
| this.ownerClass = ownerClass; |
| } |
| |
| protected abstract boolean isApplicable(Type resultType); |
| |
| protected abstract Pair<Type, Type> generateTypes(); |
| |
| protected BinaryOperator generateProduction(Type leftType, Type rightType) throws ProductionFailedException { |
| int leftOpLimit = (int) (PseudoRandom.random() * (operatorLimit - 1)); |
| int rightOpLimit = operatorLimit - 1 - leftOpLimit; |
| long leftComplLimit = (long) (PseudoRandom.random() * (complexityLimit - 1)); |
| long rightComplLimit = complexityLimit - 1 - leftComplLimit; |
| if (leftOpLimit == 0 || rightOpLimit == 0 || leftComplLimit == 0 || rightComplLimit == 0) { |
| throw new ProductionFailedException(); |
| } |
| boolean swap = PseudoRandom.randomBoolean(); |
| IRNodeBuilder builder = new IRNodeBuilder().setExceptionSafe(exceptionSafe) |
| .setOwnerKlass((TypeKlass) ownerClass) |
| .setNoConsts(!swap && noconsts); |
| IRNode leftExpr = builder.setComplexityLimit(leftComplLimit) |
| .setOperatorLimit(leftOpLimit) |
| .setResultType(leftType) |
| .getExpressionFactory() |
| .produce(); |
| IRNode rightExpr = builder.setComplexityLimit(rightComplLimit) |
| .setOperatorLimit(rightOpLimit) |
| .setResultType(rightType) |
| .getExpressionFactory() |
| .produce(); |
| return new BinaryOperator(opKind, resultType, leftExpr, rightExpr); |
| } |
| |
| @Override |
| public final BinaryOperator produce() throws ProductionFailedException { |
| if (!isApplicable(resultType)) { |
| //avoid implicit use of resultType.toString() |
| throw new ProductionFailedException("Type " + resultType.getName() + " is not applicable by " + getClass().getName()); |
| } |
| |
| Pair<Type, Type> types; |
| try { |
| types = generateTypes(); |
| } catch (RuntimeException ex) { |
| throw new ProductionFailedException(ex.getMessage()); |
| } |
| |
| try { |
| SymbolTable.push(); |
| BinaryOperator p = generateProduction(types.first, types.second); |
| SymbolTable.merge(); |
| return p; |
| } catch (ProductionFailedException e) { |
| SymbolTable.pop(); |
| throw e; |
| } |
| } |
| } |