1 /*
   2  * Copyright (c) 2019, Red Hat, 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 8134739
  27  * @summary SEGV in SuperWord::get_pre_loop_end
  28  * @run main/othervm compiler.loopopts.superword.TestFuzzPreLoop
  29  */
  30 
  31 package compiler.loopopts.superword;
  32 
  33 public class TestFuzzPreLoop {
  34     static Object sink;
  35     short sFld = -19206;
  36 
  37     void doTest() {
  38         int[] arr = new int[400];
  39 
  40         for (int i1 = 0; i1 < 200; i1++) {
  41             for (int i2 = 0; i2 < 100; i2++) {
  42                 sink = new int[400];
  43             }
  44             arr[i1] = 0;
  45         }
  46 
  47         float f1 = 0;
  48         for (int i3 = 0; i3 < 200; i3++) {
  49             f1 += i3 * i3;
  50         }
  51         for (int i4 = 0; i4 < 200; i4++) {
  52             f1 += i4 - sFld;
  53         }
  54 
  55         System.out.println(arr);
  56         System.out.println(f1);
  57     }
  58 
  59     public static void main(String... args) throws Exception {
  60         TestFuzzPreLoop test = new TestFuzzPreLoop();
  61         for (int i = 0; i < 100; i++) {
  62             test.doTest();
  63         }
  64     }
  65 }