1 /*
   2  * Copyright (c) 2014, 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 8066900
  27  * @summary FP registers are not properly restored by C1 when handling exceptions
  28  *
  29  * @run main/othervm -Xbatch compiler.exceptions.SumTest
  30  */
  31 
  32 package compiler.exceptions;
  33 
  34 public class SumTest {
  35     private static class Sum {
  36 
  37         double[] sums;
  38 
  39         /**
  40          * Construct empty Sum
  41          */
  42         public Sum() {
  43             sums = new double[0];
  44         }
  45 
  46         /**
  47          * Return the sum of all numbers added to this Sum
  48          *
  49          * @return the sum
  50          */
  51         final public double getSum() {
  52             double sum = 0;
  53             for (final double s : sums) {
  54                 sum += s;
  55             }
  56 
  57             return sum;
  58         }
  59 
  60         /**
  61          * Add a new number to this Sum
  62          *
  63          * @param a number to be added.
  64          */
  65         final public void add(double a) {
  66             try {
  67                 sums[sums.length] = -1; // Cause IndexOutOfBoundsException
  68             } catch (final IndexOutOfBoundsException e) {
  69                 final double[] oldSums = sums;
  70                 sums = new double[oldSums.length + 1]; // Extend sums
  71                 System.arraycopy(oldSums, 0, sums, 0, oldSums.length);
  72                 sums[oldSums.length] = a; // Append a
  73             }
  74         }
  75     }
  76 
  77     public static void main(String[] args) throws Exception {
  78         final Sum sum = new Sum();
  79         for (int i = 1; i <= 10000; ++i) {
  80             sum.add(1);
  81             double ii = sum.getSum();
  82             if (i != ii) {
  83                 throw new Exception("Failure: computed = " + ii + ", expected = " + i);
  84             }
  85         }
  86     }
  87 
  88 }
  89