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 jdk.test.lib.Pair; 27 import jdk.test.lib.jittester.BinaryOperator; 28 import jdk.test.lib.jittester.IRNode; 29 import jdk.test.lib.jittester.OperatorKind; 30 import jdk.test.lib.jittester.ProductionFailedException; 31 import jdk.test.lib.jittester.Rule; 32 import jdk.test.lib.jittester.Type; 33 import jdk.test.lib.jittester.TypeList; 34 import jdk.test.lib.jittester.utils.TypeUtil; 35 import jdk.test.lib.jittester.VariableBase; 36 import jdk.test.lib.jittester.VariableInfo; 37 import jdk.test.lib.jittester.types.TypeKlass; 38 import jdk.test.lib.jittester.utils.PseudoRandom; 39 40 class AssignmentOperatorImplFactory extends BinaryOperatorFactory { 41 AssignmentOperatorImplFactory(long complexityLimit, int operatorLimit, TypeKlass ownerClass, 42 Type resultType, boolean exceptionSafe, boolean noconsts) { 43 super(OperatorKind.ASSIGN, complexityLimit, operatorLimit, ownerClass, resultType, exceptionSafe, noconsts); 44 } 45 46 @Override 47 protected boolean isApplicable(Type resultType) { 48 return true; 49 } 50 51 @Override 52 protected Pair<Type, Type> generateTypes() throws ProductionFailedException { 53 return new Pair<>(resultType, PseudoRandom.randomElement( 54 TypeUtil.getImplicitlyCastable(TypeList.getAll(), resultType))); 55 } 56 57 @Override 58 protected BinaryOperator generateProduction(Type leftOperandType, Type rightOperandType) 59 throws ProductionFailedException { 60 long leftComplexityLimit = (long) (PseudoRandom.random() * complexityLimit); 61 long rightComplexityLimit = complexityLimit - leftComplexityLimit; 62 int leftOperatorLimit = (int) (PseudoRandom.random() * operatorLimit); 63 int rightOperatorLimit = operatorLimit = leftOperatorLimit; 64 IRNodeBuilder builder = new IRNodeBuilder().setOwnerKlass((TypeKlass) ownerClass) 65 .setExceptionSafe(exceptionSafe) 66 .setNoConsts(noconsts) 67 .setComplexityLimit(leftComplexityLimit) 68 .setOperatorLimit(leftOperatorLimit) 69 .setResultType(leftOperandType) 70 .setIsConstant(false); 71 Rule rule = new Rule("assignment"); 72 rule.add("initialized_nonconst_var", builder.setIsInitialized(true).getVariableFactory()); 73 rule.add("uninitialized_nonconst_var", builder.setIsInitialized(false).getVariableFactory()); 74 IRNode leftOperandValue = rule.produce(); 75 IRNode rightOperandValue = builder.setComplexityLimit(rightComplexityLimit) 76 .setOperatorLimit(rightOperatorLimit) 77 .setResultType(rightOperandType) 78 .getExpressionFactory() 79 .produce(); 80 try { 81 VariableBase v = (VariableBase) leftOperandValue; 82 if ((v.get().flags & VariableInfo.INITIALIZED) == 0) { 83 v.get().flags |= VariableInfo.INITIALIZED; 84 } 85 } catch (Exception e) { 86 throw new ProductionFailedException(e.getMessage()); 87 } 88 return new BinaryOperator(opKind, leftOperandValue, rightOperandValue); 89 } 90 }