test/tools/javac/UnreachableVar.java

Wed, 14 Nov 2018 10:18:25 -0800

author
diazhou
date
Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762
7909abb85562
parent 554
9d9f26857129
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

     1 /*
     2  * Copyright (c) 2002, 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  */
    24 /*
    25  * @test
    26  * @bug 4704247
    27  * @summary code generator fails to assign a register to a var with an unreachable def
    28  * @author gafter
    29  *
    30  * @compile UnreachableVar.java
    31  * @run main UnreachableVar
    32  */
    34 public class UnreachableVar {
    35     static String result = "";
    36     public static void main(String[] args) {
    37         switch (args.length) {
    38         case 20000:
    39             if (true)
    40                 break;
    41             int i = 1;
    42         default:
    43             i = 2;
    44             result += i + " ";
    45         }
    46         result += args.getClass().getName();
    47         if (!result.equals("2 [Ljava.lang.String;")) throw new Error(result);
    48     }
    49 }

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