1 /*
   2  * Copyright 2016 Google, Inc.  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 8166742
  27  * @summary C2 IV elimination throws FPE
  28  * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation TestImpossibleIV
  29  * @author Chuck Rasbold rasbold@google.com
  30  */
  31 
  32 /*
  33  * Use -XX:-TieredCompilation to get C2 only.
  34  * Use -XX:-BackgroundCompilation to wait for compilation before test exit.
  35  */
  36 
  37 public class TestImpossibleIV {
  38 
  39   static private void testMethod() {
  40     int sum = 0;
  41     // A unit count-down loop which has an induction variable with
  42     // MIN_VALUE stride.
  43     for (int i = 100000; i >= 0; i--) {
  44       sum += Integer.MIN_VALUE;
  45     }
  46   }
  47 
  48   public static void main(String[] args) {
  49     testMethod();
  50   }
  51 }