1 /* 2 * Copyright (c) 2011, 2016, 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 7103261 28 * @summary crash with jittester on sparc 29 * 30 * @run main compiler.c1.Test7103261 31 */ 32 33 package compiler.c1; 34 35 // exercise implicit null checking in the compiler for various field types 36 public class Test7103261 { 37 static Test7103261 null_value; 38 static Test7103261 nonnull_value = new Test7103261(); 39 static Test7103261 nonnull_value2 = new Test7103261(); 40 41 long l; 42 int i; 43 float f; 44 double d; 45 byte b; 46 char c; 47 short s; 48 boolean z; 49 Object o; 50 51 public static void main(String[] args) { 52 constantStore(); 53 valueTest(false); 54 valueTest(true); 55 } 56 static void constantStore() { 57 for (int field = 0; field < 9; field++) { 58 try { 59 Test7103261 o = nonnull_value; 60 for (int i = 0; i < 100000; i++) { 61 switch (field) { 62 case 0: o.l = 0; break; 63 case 1: o.i = 0; break; 64 case 2: o.f = 0; break; 65 case 3: o.d = 0; break; 66 case 4: o.b = 0; break; 67 case 5: o.c = 0; break; 68 case 6: o.s = 0; break; 69 case 7: o.z = false; break; 70 case 8: o.o = null; break; 71 default: throw new InternalError(); 72 } 73 if (i == 90000) { 74 // hide nullness from optimizer 75 o = null_value; 76 } 77 } 78 } catch (NullPointerException npe) { 79 } 80 } 81 } 82 static void valueTest(boolean store) { 83 for (int field = 0; field < 9; field++) { 84 try { 85 Test7103261 o = nonnull_value; 86 Test7103261 o2 = nonnull_value2; 87 for (int i = 0; i < 100000; i++) { 88 switch (field) { 89 case 0: o.l = o2.l; break; 90 case 1: o.i = o2.i; break; 91 case 2: o.f = o2.f; break; 92 case 3: o.d = o2.d; break; 93 case 4: o.b = o2.b; break; 94 case 5: o.c = o2.c; break; 95 case 6: o.s = o2.s; break; 96 case 7: o.z = o2.z; break; 97 case 8: o.o = o2.o; break; 98 default: throw new InternalError(); 99 } 100 if (i == 90000) { 101 // hide nullness from optimizer 102 if (store) 103 o = null_value; 104 else 105 o2 = null_value; 106 } 107 } 108 } catch (NullPointerException npe) { 109 } 110 } 111 } 112 }