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From: "pinskia at physics dot uc dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug optimization/11373] asm generated lhs expressions are discarded
Date: Sun, 29 Jun 2003 14:49:00 -0000	[thread overview]
Message-ID: <20030629144947.27112.qmail@sources.redhat.com> (raw)
In-Reply-To: <20030629143256.11373.marcus@jet.franken.de>

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11373


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |optimization
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-06-29 14:49:47
               date|                            |
   Target Milestone|3.4                         |tree-ssa


------- Additional Comments From pinskia at physics dot uc dot edu  2003-06-29 14:49 -------
confirmed on tree-ssa (20030628). DCE is removing a store which is wrong.
This can reproduced without using inline-asm (at least on powerpc-apple-darwin6.6):
static inline int* k()
{
        return (int*)(0xFFFF0001);
}

void g()
{
        *k() = 0;
}

So somehow DCE is removing *-65535B = 0 or *t_2 = 0 where t is set by a asm.


  parent reply	other threads:[~2003-06-29 14:49 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-29 14:32 [Bug c/11373] New: " marcus at jet dot franken dot de
2003-06-29 14:33 ` [Bug c/11373] " marcus at jet dot franken dot de
2003-06-29 14:49 ` pinskia at physics dot uc dot edu [this message]
2003-06-29 14:51 ` [Bug optimization/11373] " pinskia at physics dot uc dot edu
2003-06-29 14:55 ` marcus at jet dot franken dot de
2003-07-05 15:59 ` [Bug optimization/11373] [tree-ssa] " pinskia at physics dot uc dot edu
2003-07-15  1:56 ` pinskia at physics dot uc dot edu
2003-07-15  2:04 ` dnovillo at redhat dot com
2003-07-15  2:04 ` dnovillo at gcc dot gnu dot org
2003-07-15  5:50 ` marcus at jet dot franken dot de
2003-07-15 12:19 ` dnovillo at redhat dot com
2003-07-16 20:17 ` marcus at jet dot franken dot de
2003-07-17 13:54 ` pinskia at physics dot uc dot edu
2003-07-25 23:51 ` dnovillo at redhat dot com
2003-07-31 16:33 ` cvs-commit at gcc dot gnu dot org
2003-08-03 19:29 ` pinskia at physics dot uc dot edu

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