Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/BadOptimization/DeadCode1.java@959103a6100f (annotated)
test/tools/javac/BadOptimization/DeadCode1.java
Wed, 27 Apr 2016 01:34:52 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:34:52 +0800
- changeset 0
- 959103a6100f
- child 2525
- 2eb010b6cb22
- permissions
- -rw-r--r--
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @bug 4057345 4120016 4120014 |
| aoqi@0 | 27 | * @summary try-catch 1: Verify that overzealous dead-code elimination no |
| aoqi@0 | 28 | * longer removes live code. |
| aoqi@0 | 29 | * @author dps |
| aoqi@0 | 30 | * |
| aoqi@0 | 31 | * @run clean DeadCode1 |
| aoqi@0 | 32 | * @run compile -O DeadCode1.java |
| aoqi@0 | 33 | * @run main DeadCode1 |
| aoqi@0 | 34 | */ |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | public class DeadCode1 |
| aoqi@0 | 37 | { |
| aoqi@0 | 38 | public static int test() { |
| aoqi@0 | 39 | Object[] arrayref = null; |
| aoqi@0 | 40 | try { |
| aoqi@0 | 41 | Object obj = arrayref[0]; |
| aoqi@0 | 42 | return 2; |
| aoqi@0 | 43 | } catch (NullPointerException e) { |
| aoqi@0 | 44 | return 0; |
| aoqi@0 | 45 | } |
| aoqi@0 | 46 | } |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | public static void main(String[] args) { |
| aoqi@0 | 50 | int ret = test(); |
| aoqi@0 | 51 | if (ret == 2) |
| aoqi@0 | 52 | throw new RuntimeException("test() = 2; accidental removal of live code"); |
| aoqi@0 | 53 | else |
| aoqi@0 | 54 | System.out.println("correct dead-code elimination"); |
| aoqi@0 | 55 | } |
| aoqi@0 | 56 | } |
