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4052
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 /**
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26 * @test
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27 * @bug 7103261
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28 * @summary crash with jittester on sparc
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29 *
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30 * @run main Test7103261
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31 */
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32
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33 // exercise implicit null checking in the compiler for various field types
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34 public class Test7103261 {
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35 static Test7103261 null_value;
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36 static Test7103261 nonnull_value = new Test7103261();
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37 static Test7103261 nonnull_value2 = new Test7103261();
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38
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39 long l;
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40 int i;
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41 float f;
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42 double d;
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43 byte b;
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44 char c;
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45 short s;
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46 boolean z;
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47
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48 public static void main(String[] args) {
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49 constantStore();
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50 valueTest(false);
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51 valueTest(true);
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52 }
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53 static void constantStore() {
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54 for (int field = 0; field < 8; field++) {
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55 try {
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56 Test7103261 o = nonnull_value;
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57 for (int i = 0; i < 100000; i++) {
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58 switch (field) {
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59 case 0: o.l = 0; break;
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60 case 1: o.i = 0; break;
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61 case 2: o.f = 0; break;
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62 case 3: o.d = 0; break;
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63 case 4: o.b = 0; break;
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64 case 5: o.c = 0; break;
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65 case 6: o.s = 0; break;
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66 case 7: o.z = false; break;
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67 default: throw new InternalError();
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68 }
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69 if (i == 90000) {
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70 // hide nullness from optimizer
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71 o = null_value;
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72 }
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73 }
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74 } catch (NullPointerException npe) {
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75 }
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76 }
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77 }
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78 static void valueTest(boolean store) {
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79 for (int field = 0; field < 8; field++) {
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80 try {
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81 Test7103261 o = nonnull_value;
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82 Test7103261 o2 = nonnull_value2;
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83 for (int i = 0; i < 100000; i++) {
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84 switch (field) {
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85 case 0: o.l = o2.l; break;
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86 case 1: o.i = o2.i; break;
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87 case 2: o.f = o2.f; break;
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88 case 3: o.d = o2.d; break;
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89 case 4: o.b = o2.b; break;
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90 case 5: o.c = o2.c; break;
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91 case 6: o.s = o2.s; break;
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92 case 7: o.z = o2.z; break;
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93 default: throw new InternalError();
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94 }
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95 if (i == 90000) {
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96 // hide nullness from optimizer
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97 if (store)
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98 o = null_value;
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99 else
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100 o2 = null_value;
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101 }
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102 }
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103 } catch (NullPointerException npe) {
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104 }
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105 }
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106 }
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107 }
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