| /* |
| * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4099995 4118025 |
| * @summary Bad optimization of "switch" statement |
| * @author dps |
| * |
| * @run clean Switch2 |
| * @run compile -O Switch2.java |
| * @run main Switch2 |
| */ |
| |
| public class Switch2 |
| { |
| private boolean isZero( int d ) { |
| switch (d) { |
| case 0: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| void useSecondArgument( String a, int b ) { |
| if ( !isZero( b ) ) |
| throw new RuntimeException("isZero(0) returns false?!"); |
| } |
| |
| public static void main( String[] args ) { |
| Switch2 object = new Switch2(); |
| object.useSecondArgument( "42", 0 ); |
| } |
| } |