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.Type;
  32 import jdk.test.lib.jittester.TypeList;
  33 import jdk.test.lib.jittester.utils.TypeUtil;
  34 import jdk.test.lib.jittester.types.TypeKlass;
  35 import jdk.test.lib.jittester.utils.PseudoRandom;
  36 
  37 class CompoundBitwiseAssignmentOperatorFactory extends BinaryOperatorFactory {
  38     CompoundBitwiseAssignmentOperatorFactory(OperatorKind opKind, long complexityLimit,
  39             int operatorLimit, TypeKlass ownerClass, Type resultType, boolean exceptionSafe, boolean noconsts) {
  40         super(opKind, complexityLimit, operatorLimit, ownerClass, resultType, exceptionSafe, noconsts);
  41     }
  42 
  43     @Override
  44     protected boolean isApplicable(Type resultType) {
  45         return TypeList.isBuiltInInt(resultType);
  46     }
  47 
  48     @Override
  49     protected Pair<Type, Type> generateTypes() {
  50         return new Pair<>(resultType, PseudoRandom.randomElement(TypeUtil.getExplicitlyCastable(TypeList.getBuiltInInt(), resultType)));
  51     }
  52 
  53     @Override
  54     protected BinaryOperator generateProduction(Type leftType, Type rightType) throws ProductionFailedException {
  55         long leftComplexityLimit = (long) (PseudoRandom.random() * complexityLimit);
  56         long rightComplexityLimit = complexityLimit - leftComplexityLimit;
  57         int leftOperatorLimit = (int) (PseudoRandom.random() * operatorLimit);
  58         int rightOperatorLimit = operatorLimit = leftOperatorLimit;
  59         IRNodeBuilder builder = new IRNodeBuilder().setOwnerKlass((TypeKlass) ownerClass)
  60                 .setExceptionSafe(exceptionSafe)
  61                 .setNoConsts(noconsts);
  62         IRNode leftExpr = builder.setComplexityLimit(leftComplexityLimit)
  63                 .setOperatorLimit(leftOperatorLimit)
  64                 .setResultType(leftType)
  65                 .setIsConstant(false)
  66                 .setIsInitialized(true)
  67                 .getVariableFactory()
  68                 .produce();
  69         IRNode rightExpr = builder.setComplexityLimit(rightComplexityLimit)
  70                 .setOperatorLimit(rightOperatorLimit)
  71                 .setResultType(rightType)
  72                 .getExpressionFactory()
  73                 .produce();
  74         return new BinaryOperator(opKind, resultType, leftExpr, rightExpr);
  75     }
  76 }