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From: "anlauf at gmx dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/51218] [4.7 Regression] Potential optimization bug
Date: Sat, 19 Nov 2011 09:28:00 -0000	[thread overview]
Message-ID: <bug-51218-4-6bNbKZaP33@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-51218-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51218

--- Comment #6 from Harald Anlauf <anlauf at gmx dot de> 2011-11-19 08:12:01 UTC ---
(In reply to comment #3)
> The miscompilation is triggered by -ffrontend-optimize, work-around: use
> -fno-frontend-optimize.
> Revision 171653 is dealing with the frontend optimization. If I am not
> mistaken, it is the only change dealing with frontend optimization after
> r171100, although I don't understand how this revision could cause a
> miscompilation.
> 
> The crash occurs in __mo_dec_matrix_MOD_sum_vector.

Aha.  Compiling just main.f90 with -fno-frontend-optimize solves
the problem.

Thanks,
Harald


  parent reply	other threads:[~2011-11-19  8:12 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-18 23:14 [Bug fortran/51218] New: " anlauf at gmx dot de
2011-11-18 23:24 ` [Bug fortran/51218] " anlauf at gmx dot de
2011-11-19  0:05 ` dominiq at lps dot ens.fr
2011-11-19  0:41 ` dominiq at lps dot ens.fr
2011-11-19  2:06 ` kargl at gcc dot gnu.org
2011-11-19  5:39 ` sgk at troutmask dot apl.washington.edu
2011-11-19  9:28 ` anlauf at gmx dot de [this message]
2011-11-19  9:29 ` tkoenig at gcc dot gnu.org
2011-11-19 10:35 ` [Bug fortran/51218] [4.7 Regression] Potential optimization bug due to implicit_pure? anlauf at gmx dot de
2011-11-19 10:58 ` burnus at gcc dot gnu.org
2011-11-19 11:31 ` anlauf at gmx dot de
2011-11-19 11:44 ` tkoenig at netcologne dot de
2011-11-19 12:11 ` anlauf at gmx dot de
2011-11-19 16:34 ` sgk at troutmask dot apl.washington.edu
2011-11-19 16:48 ` sgk at troutmask dot apl.washington.edu
2011-11-19 17:44 ` kargl at gcc dot gnu.org
2011-11-21  9:05 ` burnus at gcc dot gnu.org
2011-11-21 19:48 ` anlauf at gmx dot de
2011-11-21 20:40 ` burnus at gcc dot gnu.org
2011-11-21 21:08 ` sgk at troutmask dot apl.washington.edu
2011-11-21 21:25 ` [Bug fortran/51218] [4.6/4.7 " burnus at gcc dot gnu.org
2011-11-22 23:11 ` anlauf at gmx dot de
2011-11-24 18:31 ` burnus at gcc dot gnu.org
2011-11-24 21:54 ` burnus at gcc dot gnu.org
2011-11-24 21:57 ` burnus at gcc dot gnu.org
2011-11-25 17:42 ` tkoenig at netcologne dot de
2011-11-25 18:49 ` burnus at gcc dot gnu.org
2011-11-26 12:15 ` tkoenig at netcologne dot de

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