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J. Duke 2007-12-01 00:00:00 +00:00
parent 686d76f772
commit f57b87e8f6
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66
langtools/test/tools/javac/BadOptimization/DeadCode2.java Normal file
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/*
* Copyright 1999 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/*
* @test
* @bug 4057345 4120016 4120014
* @summary try-catch 2: Verify that overzealous dead-code elimination no
* longer removes live code.
* @author dps
*
* @run clean DeadCode2
* @run compile -O DeadCode2.java
* @run main DeadCode2
*/
class cls
{
int [] ai = null;
}
public class DeadCode2 extends cls
{
int [] bi = null;
static int[] func() { return (int[])null; }
public static void main(String argv[]) {
int [] ci = null;
int m = 0;
int errcnt = 0;
try { int i = func()[m = 7]; }
catch(Exception e) { System.out.println(e + " found "); errcnt++; }
try { DeadCode2 ox = new DeadCode2(); int i = ox.ai[m = 7]; }
catch(Exception e) { System.out.println(e + " found "); errcnt++; }
try { DeadCode2 ox = new DeadCode2(); int i = ox.bi[m = 7]; }
catch(Exception e) { System.out.println(e + " found "); errcnt++; }
try { int i = ci[m = 7]; }
catch(Exception e) { System.out.println(e + " found "); errcnt++; }
try { int i = ((int[])null)[0]; }
catch(Exception e) { System.out.println(e + " found "); errcnt++; }
if (errcnt != 5)
throw new RuntimeException("live code accidentally removed");
}
}