1 /*
   2  * Copyright (c) 2013, 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  * @test
  26  * @bug 8025657
  27  * @summary Test repeating addExact
  28  * @compile AddExactIRepeatTest.java Verify.java
  29  * @run main AddExactIRepeatTest -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseMathExactIntrinsics
  30  *
  31  */
  32 
  33 public class AddExactIRepeatTest {
  34     public static void main(String[] args) {
  35         runTest(new Verify.AddExactI());
  36     }
  37 
  38     public static int nonExact(int x, int y, Verify.BinaryMethod method) {
  39         int result = method.unchecked(x, y);
  40         result += method.unchecked(x, y);
  41         result += method.unchecked(x, y);
  42         result += method.unchecked(x, y);
  43         return result;
  44     }
  45 
  46     public static void runTest(Verify.BinaryMethod method) {
  47         java.util.Random rnd = new java.util.Random();
  48         for (int i = 0; i < 50000; ++i) {
  49             int x = Integer.MAX_VALUE - 10;
  50             int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5);
  51 
  52             int c = rnd.nextInt() / 2;
  53             int d = rnd.nextInt() / 2;
  54 
  55             int a = catchingExact(x, y, method);
  56 
  57             if (a != 36) {
  58                 throw new RuntimeException("a != 36 : " + a);
  59             }
  60 
  61             int b = nonExact(c, d, method);
  62             int n = exact(c, d, method);
  63 
  64 
  65             if (n != b) {
  66                 throw new RuntimeException("n != b : " + n + " != " + b);
  67             }
  68         }
  69     }
  70 
  71     public static int exact(int x, int y, Verify.BinaryMethod method) {
  72         int result = 0;
  73         result += method.checkMethod(x, y);
  74         result += method.checkMethod(x, y);
  75         result += method.checkMethod(x, y);
  76         result += method.checkMethod(x, y);
  77         return result;
  78     }
  79 
  80     public static int catchingExact(int x, int y, Verify.BinaryMethod method) {
  81         int result = 0;
  82         try {
  83             result += 5;
  84             result = method.checkMethod(x, y);
  85         } catch (ArithmeticException e) {
  86             result += 1;
  87         }
  88         try {
  89             result += 6;
  90 
  91             result += method.checkMethod(x, y);
  92         } catch (ArithmeticException e) {
  93             result += 2;
  94         }
  95         try {
  96             result += 7;
  97             result += method.checkMethod(x, y);
  98         } catch (ArithmeticException e) {
  99             result += 3;
 100         }
 101         try {
 102             result += 8;
 103             result += method.checkMethod(x, y);
 104         } catch (ArithmeticException e) {
 105             result += 4;
 106         }
 107         return result;
 108     }
 109 }