1 /*
   2  * Copyright (c) 2010, 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 /**
  26  * @test
  27  * @bug 6982370
  28  * @summary SIGBUS in jbyte_fill
  29  *
  30  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+OptimizeFill -Xbatch Test6982370
  31  */
  32 
  33 import java.util.Arrays;
  34 
  35 /**
  36  * Exercise the fill routine for various short alignments and sizes
  37  */
  38 
  39 public class Test6982370 {
  40     public static void main(String[] args) {
  41         test_byte();
  42         test_char();
  43         test_short();
  44         test_int();
  45         test_float();
  46     }
  47 
  48     public static void test_int() {
  49         int[] a = new int[16];
  50         for (int i = 0; i < 200000; i++) {
  51             int start = i & 7;
  52             int end = start + ((i >> 4) & 7);
  53             int value = i;
  54             if ((i & 1) == 1) value = -value;
  55             Arrays.fill(a, start, end, value);
  56             boolean error = false;
  57             for (int j = start; j < end; j++) {
  58                 if (a[j] != value) {
  59                     System.err.println("a[" + j + "] = " + a[j] + " != " + value + " for " + a.length);
  60                     error = true;
  61                 }
  62             }
  63             if (error) throw new InternalError();
  64         }
  65     }
  66 
  67     public static void test_float() {
  68         float[] a = new float[16];
  69         for (int i = 0; i < 200000; i++) {
  70             int start = i & 7;
  71             int end = start + ((i >> 4) & 7);
  72             float value = (float)i;
  73             if ((i & 1) == 1) value = -value;
  74             Arrays.fill(a, start, end, value);
  75             boolean error = false;
  76             for (int j = start; j < end; j++) {
  77                 if (a[j] != value) {
  78                     System.err.println("a[" + j + "] = " + a[j] + " != " + value + " for " + a.length);
  79                     error = true;
  80                 }
  81             }
  82             if (error) throw new InternalError();
  83         }
  84     }
  85     public static void test_char() {
  86         char[] a = new char[16];
  87         for (int i = 0; i < 200000; i++) {
  88             int start = i & 7;
  89             int end = start + ((i >> 4) & 7);
  90             char value = (char)i;
  91             Arrays.fill(a, start, end, value);
  92             boolean error = false;
  93             for (int j = start; j < end; j++) {
  94                 if (a[j] != value) {
  95                     System.err.println("a[" + j + "] = " + a[j] + " != " + value + " for " + a.length);
  96                     error = true;
  97                 }
  98             }
  99             if (error) throw new InternalError();
 100         }
 101     }
 102     public static void test_short() {
 103         short[] a = new short[16];
 104         for (int i = 0; i < 200000; i++) {
 105             int start = i & 7;
 106             int end = start + ((i >> 4) & 7);
 107             short value = (short)i;
 108             if ((i & 1) == 1) value = (short)-value;
 109             Arrays.fill(a, start, end, value);
 110             boolean error = false;
 111             for (int j = start; j < end; j++) {
 112                 if (a[j] != value) {
 113                     System.err.println("a[" + j + "] = " + a[j] + " != " + value + " for " + a.length);
 114                     error = true;
 115                 }
 116             }
 117             if (error) throw new InternalError();
 118         }
 119     }
 120 
 121     public static void test_byte() {
 122         for (int i = 0; i < 200000; i++) {
 123             byte[] a = new byte[16];
 124             int start = i & 7;
 125             int end = start + ((i >> 4) & 7);
 126             byte value = (byte)i;
 127             if ((i & 1) == 1) value = (byte)-value;
 128             Arrays.fill(a, start, end, value);
 129             boolean error = false;
 130             for (int j = start; j < end; j++) {
 131                 if (a[j] != value) {
 132                     System.err.println("a[" + j + "] = " + a[j] + " != " + value + " for " + a.length);
 133                     error = true;
 134                 }
 135             }
 136             if (error) throw new InternalError();
 137         }
 138     }
 139 }