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.Literal;
  29 import jdk.test.lib.jittester.ProductionFailedException;
  30 import jdk.test.lib.jittester.ProductionParams;
  31 import jdk.test.lib.jittester.Type;
  32 import jdk.test.lib.jittester.arrays.ArrayCreation;
  33 import jdk.test.lib.jittester.arrays.ArrayExtraction;
  34 import jdk.test.lib.jittester.types.TypeArray;
  35 import jdk.test.lib.jittester.types.TypeKlass;
  36 import jdk.test.lib.jittester.types.TypeByte;
  37 import jdk.test.lib.jittester.utils.PseudoRandom;
  38 
  39 class ArrayExtractionFactory extends SafeFactory {
  40     private final long complexityLimit;
  41     private final int operatorLimit;
  42     private final Type resultType;
  43     private final TypeKlass ownerClass;
  44     private final boolean exceptionSafe;
  45     private final boolean noconsts;
  46 
  47     ArrayExtractionFactory(long complexityLimit, int operatorLimit, TypeKlass ownerClass,
  48             Type resultType, boolean exceptionSafe, boolean noconsts) {
  49         this.complexityLimit = complexityLimit;
  50         this.operatorLimit = operatorLimit;
  51         this.ownerClass = ownerClass;
  52         this.resultType = resultType;
  53         this.exceptionSafe = exceptionSafe;
  54         this.noconsts = noconsts;
  55     }
  56 
  57     @Override
  58     public IRNode sproduce() throws ProductionFailedException {
  59         if (resultType instanceof TypeArray) {
  60             TypeArray arrayType = (TypeArray) resultType;
  61             int delta = PseudoRandom.randomNotZero(ProductionParams.dimensionsLimit.value()
  62                     - arrayType.dimensions);
  63             if (arrayType.dimensions + delta <= ProductionParams.dimensionsLimit.value()) {
  64                 long arrayComplLimit = (long) (complexityLimit * 0.5 * PseudoRandom.random());
  65                 int arrayOpLimit = (int) (operatorLimit * 0.5 * PseudoRandom.random());
  66                 IRNodeBuilder builder = new IRNodeBuilder().setOwnerKlass(ownerClass)
  67                         .setExceptionSafe(exceptionSafe)
  68                         .setNoConsts(noconsts);
  69                 IRNode arrayReturningExpression = builder
  70                         .setComplexityLimit(arrayComplLimit)
  71                         .setOperatorLimit(arrayOpLimit)
  72                         .setResultType(new TypeArray(arrayType.type, arrayType.dimensions + delta))
  73                         .getExpressionFactory().produce();
  74                 ArrayList<IRNode> perDimensionExpression = new ArrayList<>(delta);
  75                 long dimComplLimit = (long) ((complexityLimit - arrayComplLimit)
  76                         * PseudoRandom.random()) / delta;
  77                 int dimOpLimit = (int) ((operatorLimit - arrayOpLimit - delta)
  78                         * PseudoRandom.random()) / delta;
  79                 double chanceExpression = ProductionParams.chanceExpressionIndex.value() / 100.;
  80                 for (int i = 0; i < delta; i++) {
  81                     if (PseudoRandom.randomBoolean(chanceExpression)) {
  82                         perDimensionExpression.add(builder.setResultType(new TypeByte())
  83                                 .setComplexityLimit(dimComplLimit)
  84                                 .setOperatorLimit(dimOpLimit)
  85                                 .getExpressionFactory()
  86                                 .produce());
  87                     } else {
  88                         byte dimLimit = 0;
  89                         if (arrayReturningExpression instanceof ArrayCreation) {
  90                             ArrayCreation arratCreation = (ArrayCreation) arrayReturningExpression;
  91                             dimLimit = arratCreation.getDimensionSize(i);
  92                         } else if (arrayReturningExpression instanceof ArrayExtraction) {
  93                             ArrayExtraction arrayExtraction = (ArrayExtraction) arrayReturningExpression;
  94                             if (i < arrayExtraction.getDimsNumber())
  95                                 dimLimit = arrayExtraction.getDim(i);
  96                         }
  97                         perDimensionExpression.add(new Literal(PseudoRandom.randomNotNegative(dimLimit), new TypeByte()));
  98                     }
  99                 }
 100                 return new ArrayExtraction(arrayReturningExpression, perDimensionExpression);
 101             }
 102         }
 103         throw new ProductionFailedException();
 104     }
 105 }