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* [Bug java/19834] New: Eclipse bytecode miscompiled with -O --indirect-dispatch
@ 2005-02-09 7:20 mckinlay at redhat dot com
2005-02-09 9:22 ` [Bug java/19834] " pinskia at gcc dot gnu dot org
2005-02-12 6:25 ` mckinlay at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: mckinlay at redhat dot com @ 2005-02-09 7:20 UTC (permalink / raw)
To: java-prs
The following test case gets miscompiled from bytecode with "-O
--indirect-dispatch". It doesn't appear to matter which compiler produced the
bytecode - the same error occurs with all of them.
import java.util.*;
public class Test
{
static int i = 0;
static int get()
{
return i++;
}
public static void main(String[] args) throws Exception
{
ArrayList headerElements = new ArrayList();
while (true)
{
headerElements.add("");
if (get() == 13)
break;
}
int size = headerElements.size();
if (size == 0)
return;
System.out.println(size);
System.out.println(headerElements.size());
}
}
$ gcj Test.java -O --indirect-dispatch --main=Test
$ ./a.out
14
14
$ gcj -C Test.java; gcj Test.class -O --indirect-dispatch --main=Test
$ ./a.out
1
14
--
Summary: Eclipse bytecode miscompiled with -O --indirect-dispatch
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P2
Component: java
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mckinlay at redhat dot com
CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19834
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2005-02-11 20:56 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2005-02-09 7:20 [Bug java/19834] New: Eclipse bytecode miscompiled with -O --indirect-dispatch mckinlay at redhat dot com
2005-02-09 9:22 ` [Bug java/19834] " pinskia at gcc dot gnu dot org
2005-02-12 6:25 ` mckinlay at redhat dot com
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