http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
Dominique d'Humieres changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
Mikael Morin changed:
What|Removed |Added
CC||mikael at gcc dot gnu.org
--- Comment #2 f
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #3 from janus at gcc dot gnu.org 2011-02-02 14:49:16 UTC ---
(In reply to comment #1)
> If gfortran is 4.5, I get
>
> hydro_fluxes.f90:7.18:
>
> use hydro_speeds
> 1
> Internal Error at (1):
> mio_component_ref():
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #4 from Rich Townsend 2011-02-02
16:52:49 UTC ---
On Feb 2, 2011, at 8:49 AM, janus at gcc dot gnu.org wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
>
> --- Comment #3 from janus at gcc dot gnu.org 2011-02-02 14:49:16 U
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #5 from janus at gcc dot gnu.org 2011-02-02 17:14:56 UTC ---
(In reply to comment #4)
> > Rich, which version are you using?
>
> Here's what gfortran -v gives:
> [...]
> Target: x86_64-apple-darwin10
> [...]
> gcc version 4.6.0 2011012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #6 from janus at gcc dot gnu.org 2011-02-02 18:25:42 UTC ---
(In reply to comment #0)
> hydro_fluxes.f90:7.18:
>
> use hydro_speeds
> 1
> Internal Error at (1):
> free_pi_tree(): Unresolved fixup
I can reproduce th
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #7 from Dominique d'Humieres 2011-02-02
18:51:17 UTC ---
> I can reproduce the error on Darwin with current trunk (r169590).
Me too at revision 169531. Revision 158105 gives
hydro_fluxes.f90:7.18:
use hydro_speeds
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #8 from janus at gcc dot gnu.org 2011-02-02 19:31:39 UTC ---
This is a *very* strange bug, to say the least. Here is a reduced test case:
module hydro_types
implicit none
end module hydro_types
module hydro_state
implicit none
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #9 from Rich Townsend 2011-02-02
19:56:25 UTC ---
(In reply to comment #8)
> On the other hand, the failure is very elusive: Even removing the 'implicit
> none' line in the module 'hydro_types' (which btw is never used) will make it
>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #10 from janus at gcc dot gnu.org 2011-02-02 20:15:07 UTC ---
(In reply to comment #9)
> Sounds like a Heisenbug -- it goes away when you look for it. Would it be
> worth
> bringing valgrind into the picture?
Maybe. Could you try if i
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #11 from Dominique d'Humieres
2011-02-02 21:04:14 UTC ---
> ... Also: Can you reproduce the
> error with my reduced test case in comment #8?
I can. Apparently some p->fixup has not been initialized/nullified.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #12 from janus at gcc dot gnu.org 2011-02-02 21:17:23 UTC ---
(In reply to comment #11)
> > ... Also: Can you reproduce the
> > error with my reduced test case in comment #8?
>
> I can. Apparently some p->fixup has not been initialized
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #13 from Mikael Morin 2011-02-02
21:26:56 UTC ---
(In reply to comment #12)
> (In reply to comment #11)
> > > ... Also: Can you reproduce the
> > > error with my reduced test case in comment #8?
> >
> > I can. Apparently some p->fixu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #14 from Mikael Morin 2011-02-02
22:24:54 UTC ---
in read_module, around line 4390
/* Skip symtree nodes not in an ONLY clause, unless there
is an existing symtree loaded from another USE statement. */
if (p ==
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #15 from Rich Townsend 2011-02-03
00:09:57 UTC ---
(In reply to comment #10)
> (In reply to comment #9)
> > Sounds like a Heisenbug -- it goes away when you look for it. Would it be
> > worth
> > bringing valgrind into the picture?
>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #16 from Mikael Morin 2011-02-03
18:32:07 UTC ---
Rich, in case this is a blocker on a real world application, you can probably
circumvent the error by not use-importing hydro_state when you use-import
hydro_speeds.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #17 from Rich Townsend 2011-02-03
22:54:34 UTC ---
(In reply to comment #16)
> Rich, in case this is a blocker on a real world application, you can probably
> circumvent the error by not use-importing hydro_state when you use-import
>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47546
--- Comment #18 from Rich Townsend 2011-02-03
23:04:22 UTC ---
(In reply to comment #8)
> This is a *very* strange bug, to say the least. Here is a reduced test case:
>
>
> module hydro_types
> implicit none
> end module hydro_types
>
> modu
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