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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/14863] [3.4 regression] unit-at-a-time causes miscompilation
Date: Wed, 02 Jun 2004 00:19:00 -0000 [thread overview]
Message-ID: <20040602001931.9022.qmail@sourceware.org> (raw)
In-Reply-To: <20040406114325.14863.rguenth@tat.physik.uni-tuebingen.de>
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-02 00:19 -------
Confirmed and here is a test which can go into the testsuite and is slightly smaller:
extern "C" void abort();
struct DomainBase { ~DomainBase() {} };
struct Interval :public DomainBase {
Interval () {}
Interval (const Interval &a) {}
};
struct IntervalIterator
{
IntervalIterator()
{ val_m = 1; }
const int & operator*() const
{ return val_m; }
IntervalIterator & operator--()
{
val_m -= 1;
return *this;
}
Interval abrakadabra;
int val_m;
};
struct reverse_iterator {
const int &operator*() const
{
IntervalIterator tmp = current;
return *--tmp;
}
IntervalIterator current;
};
int main ()
{
reverse_iterator rk_pos;
if (*rk_pos)
abort();
if (*rk_pos)
abort();
if (*rk_pos)
abort();
}
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Known to work|3.3.3 |3.3.3 3.5.0
Last reconfirmed|0000-00-00 00:00:00 |2004-06-02 00:19:23
date| |
Summary|[3.4/3.5 regression] unit- |[3.4 regression] unit-at-a-
|at-a-time causes |time causes miscompilation
|miscompilation |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14863
next prev parent reply other threads:[~2004-06-02 0:19 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-06 11:43 [Bug optimization/14863] New: " rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-06 11:45 ` [Bug optimization/14863] " rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-06 11:49 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-06 12:36 ` pinskia at gcc dot gnu dot org
2004-04-06 23:48 ` 1319 at bot dot ru
2004-04-07 7:59 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-07 8:00 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-07 8:04 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-07 10:25 ` 1319 at bot dot ru
2004-04-07 11:56 ` 1319 at bot dot ru
2004-04-07 12:04 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-07 13:07 ` [Bug optimization/14863] [3.4/3.5 " pinskia at gcc dot gnu dot org
2004-04-07 13:26 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-07 13:37 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-07 13:44 ` giovannibajo at libero dot it
2004-04-07 16:08 ` pinskia at gcc dot gnu dot org
2004-04-07 20:55 ` pinskia at gcc dot gnu dot org
2004-04-08 11:57 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-08 11:58 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-09 13:09 ` pinskia at gcc dot gnu dot org
2004-04-09 13:12 ` pinskia at gcc dot gnu dot org
2004-04-09 13:35 ` pinskia at gcc dot gnu dot org
2004-04-10 15:27 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-04-11 1:06 ` 1319 at bot dot ru
2004-06-02 0:08 ` [Bug rtl-optimization/14863] " belyshev at lubercy dot com
2004-06-02 0:19 ` pinskia at gcc dot gnu dot org [this message]
2004-06-02 6:47 ` [Bug rtl-optimization/14863] [3.4 " belyshev at lubercy dot com
2004-06-02 7:38 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-06-02 8:50 ` belyshev at lubercy dot com
2004-06-02 10:18 ` giovannibajo at libero dot it
2004-06-02 10:51 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-06-02 10:57 ` giovannibajo at libero dot it
2004-06-02 11:07 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-06-02 11:14 ` giovannibajo at libero dot it
2004-06-02 11:15 ` belyshev at lubercy dot com
2004-06-02 11:54 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-06-02 12:05 ` rguenth at tat dot physik dot uni-tuebingen dot de
2004-06-02 22:30 ` pinskia at gcc dot gnu dot org
2004-06-03 1:01 ` [Bug rtl-optimization/14863] [3.4/3.5 " giovannibajo at libero dot it
2004-06-03 1:08 ` pinskia at gcc dot gnu dot org
2004-06-03 1:12 ` pinskia at gcc dot gnu dot org
2004-06-03 1:25 ` giovannibajo at libero dot it
2004-06-04 20:47 ` giovannibajo at libero dot it
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