Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/BadOptimization/DeadCode2.java
test/tools/javac/BadOptimization/DeadCode2.java
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- 9a66ca7c79fa
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- 9d9f26857129
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| 1 /* | |
| 2 * Copyright 1999 Sun Microsystems, 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 4057345 4120016 4120014 | |
| 27 * @summary try-catch 2: Verify that overzealous dead-code elimination no | |
| 28 * longer removes live code. | |
| 29 * @author dps | |
| 30 * | |
| 31 * @run clean DeadCode2 | |
| 32 * @run compile -O DeadCode2.java | |
| 33 * @run main DeadCode2 | |
| 34 */ | |
| 35 | |
| 36 class cls | |
| 37 { | |
| 38 int [] ai = null; | |
| 39 } | |
| 40 | |
| 41 public class DeadCode2 extends cls | |
| 42 { | |
| 43 int [] bi = null; | |
| 44 | |
| 45 static int[] func() { return (int[])null; } | |
| 46 | |
| 47 public static void main(String argv[]) { | |
| 48 int [] ci = null; | |
| 49 int m = 0; | |
| 50 int errcnt = 0; | |
| 51 | |
| 52 try { int i = func()[m = 7]; } | |
| 53 catch(Exception e) { System.out.println(e + " found "); errcnt++; } | |
| 54 try { DeadCode2 ox = new DeadCode2(); int i = ox.ai[m = 7]; } | |
| 55 catch(Exception e) { System.out.println(e + " found "); errcnt++; } | |
| 56 try { DeadCode2 ox = new DeadCode2(); int i = ox.bi[m = 7]; } | |
| 57 catch(Exception e) { System.out.println(e + " found "); errcnt++; } | |
| 58 try { int i = ci[m = 7]; } | |
| 59 catch(Exception e) { System.out.println(e + " found "); errcnt++; } | |
| 60 try { int i = ((int[])null)[0]; } | |
| 61 catch(Exception e) { System.out.println(e + " found "); errcnt++; } | |
| 62 | |
| 63 if (errcnt != 5) | |
| 64 throw new RuntimeException("live code accidentally removed"); | |
| 65 } | |
| 66 } |
