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 
  25 package compiler.jvmci.compilerToVM;
  26 
  27 import jdk.test.lib.Utils;
  28 import sun.hotspot.WhiteBox;
  29 
  30 import java.util.Random;
  31 
  32 class DummyClass extends DummyAbstractClass {
  33     private static final WhiteBox WB = WhiteBox.getWhiteBox();
  34     int p1 = 5;
  35     int p2 = 6;
  36 
  37     public int dummyInstanceFunction() {
  38         String str1 = "123123123";
  39         double x = 3.14;
  40         int y = Integer.parseInt(str1);
  41 
  42         return y / (int) x;
  43     }
  44 
  45     public int dummyEmptyInstanceFunction() {
  46         return 42;
  47     }
  48 
  49     public static int dummyEmptyStaticFunction() {
  50         return -42;
  51     }
  52 
  53     @Override
  54     public int dummyAbstractFunction() {
  55         int z = p1 * p2;
  56         return (int) (Math.cos(p2 - p1 + z) * 100);
  57     }
  58 
  59     @Override
  60     public void dummyFunction() {
  61         dummyEmptyInstanceFunction();
  62     }
  63 
  64     public void withLoop() {
  65         long tier4 = (Long) WB.getVMFlag("Tier4BackEdgeThreshold");
  66         for (long i = 0; i < tier4; ++i) {
  67             randomProfile();
  68         }
  69     }
  70 
  71     private double randomProfile() {
  72         String str1 = "123123123";
  73         double x = 3.14;
  74         int y = Integer.parseInt(str1);
  75 
  76         Random rnd = Utils.getRandomInstance();
  77         if (rnd.nextDouble() > 0.2) {
  78             return y / (int) x;
  79         } else {
  80             return x / y;
  81         }
  82     }
  83 
  84 }