* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
@ 2011-10-05 8:25 ` burnus at gcc dot gnu.org
2011-11-30 21:35 ` bdavis at gcc dot gnu.org
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From: burnus at gcc dot gnu.org @ 2011-10-05 8:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
CC| |burnus at gcc dot gnu.org,
| |janus at gcc dot gnu.org
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-10-05 08:25:21 UTC ---
This seems to be an ordering problem - from -fdump-tree-original:
test (struct test_ty & restrict e)
{
{
real(kind=4) * rmult;
{
I/O before ASSOCIATE ...
}
rmult = &e->rmult;
*rmult = Nan;
{
I/O in ASSOCIATE ...
}
The "*rmult = NaN" line should be before "rmult = &e->rmult". I don't quite see
whether that's a problem of inserting the NAN or of the ASSOCIATE assignment.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
2011-10-05 8:25 ` [Bug fortran/50619] " burnus at gcc dot gnu.org
@ 2011-11-30 21:35 ` bdavis at gcc dot gnu.org
2012-06-04 9:44 ` gcc.10.dimsea at spamgourmet dot org
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From: bdavis at gcc dot gnu.org @ 2011-11-30 21:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
Bud Davis <bdavis at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bdavis at gcc dot gnu.org
--- Comment #2 from Bud Davis <bdavis at gcc dot gnu.org> 2011-11-30 21:30:30 UTC ---
Reduced a bit more, for those that like it simple....
real :: rmult = 1.0e0
real :: e
print*,'No Associate',rmult
associate (rmult=>e)
print*,' Associate',e
end associate
end
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
2011-10-05 8:25 ` [Bug fortran/50619] " burnus at gcc dot gnu.org
2011-11-30 21:35 ` bdavis at gcc dot gnu.org
@ 2012-06-04 9:44 ` gcc.10.dimsea at spamgourmet dot org
2012-06-04 12:32 ` burnus at gcc dot gnu.org
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From: gcc.10.dimsea at spamgourmet dot org @ 2012-06-04 9:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
Stephan Weller <gcc.10.dimsea at spamgourmet dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gcc.10.dimsea at
| |spamgourmet dot org
--- Comment #3 from Stephan Weller <gcc.10.dimsea at spamgourmet dot org> 2012-06-04 09:44:06 UTC ---
I can confirm this behaviour in gcc-4.6.2, 4.7.0, and 4.8.0 (20120530)
development version. Since this renders -finit-real=NAN unusable for me, I
would consider this a serious bug.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
` (2 preceding siblings ...)
2012-06-04 9:44 ` gcc.10.dimsea at spamgourmet dot org
@ 2012-06-04 12:32 ` burnus at gcc dot gnu.org
2012-06-04 21:01 ` burnus at gcc dot gnu.org
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From: burnus at gcc dot gnu.org @ 2012-06-04 12:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-04 12:32:20 UTC ---
(In reply to comment #3)
> I can confirm this behaviour in gcc-4.6.2, 4.7.0, and 4.8.0 (20120530)
> development version. Since this renders -finit-real=NAN unusable for me, I
> would consider this a serious bug.
I concur that it is a bad wrong-code bug, but it only occurs with the
nondefault flag -finit-real=* - and it is not a regression -, thus, I think it
is bad but not serious.
Unfortunately, the number of active gfortran developers is not that high, which
in turn means that bugs aren't fixed and features not implemented as quickly as
everyone would like. (Note: 99% of the Fortran-frontend development is done in
the spare time!) Thus, if you are interested in contributing to gfortran - or
if you know someone who is ...
* * *
Regarding this bugreport: I think the following patch should fix it. I will
test it and submit it.
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -10105,3 +10105,4 @@ build_default_init_expr (gfc_symbol *sym)
|| sym->attr.cray_pointee
- || sym->attr.cray_pointer)
+ || sym->attr.cray_pointer
+ || sym->assoc)
return NULL;
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
` (3 preceding siblings ...)
2012-06-04 12:32 ` burnus at gcc dot gnu.org
@ 2012-06-04 21:01 ` burnus at gcc dot gnu.org
2012-06-05 11:57 ` gcc.10.dimsea at spamgourmet dot org
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From: burnus at gcc dot gnu.org @ 2012-06-04 21:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
--- Comment #5 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-04 21:01:05 UTC ---
Author: burnus
Date: Mon Jun 4 21:01:02 2012
New Revision: 188208
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188208
Log:
2012-06-04 Tobias Burnus <burnus@net-b.de>
PR fortran/50619
* resolve.c (build_default_init_expr): Don't initialize
ASSOCIATE names.
2012-06-04 Tobias Burnus <burnus@net-b.de>
PR fortran/50619
* gfortran.dg/init_flag_10.f90: New.
Added:
trunk/gcc/testsuite/gfortran.dg/init_flag_10.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/resolve.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
` (4 preceding siblings ...)
2012-06-04 21:01 ` burnus at gcc dot gnu.org
@ 2012-06-05 11:57 ` gcc.10.dimsea at spamgourmet dot org
2012-06-05 13:05 ` burnus at gcc dot gnu.org
` (2 subsequent siblings)
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From: gcc.10.dimsea at spamgourmet dot org @ 2012-06-05 11:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
--- Comment #6 from Stephan Weller <gcc.10.dimsea at spamgourmet dot org> 2012-06-05 11:56:59 UTC ---
Great, this fixes the problem for me. In current svn revision, -finit-real=NAN
works as expected. Thanks for keeping up the good work!
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
` (5 preceding siblings ...)
2012-06-05 11:57 ` gcc.10.dimsea at spamgourmet dot org
@ 2012-06-05 13:05 ` burnus at gcc dot gnu.org
2012-06-14 13:05 ` burnus at gcc dot gnu.org
2012-06-14 13:07 ` burnus at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-05 13:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
--- Comment #7 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-05 13:05:38 UTC ---
Author: burnus
Date: Tue Jun 5 13:05:31 2012
New Revision: 188237
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188237
Log:
2012-06-05 Tobias Burnus <burnus@net-b.de>
PR fortran/50619
* resolve.c (build_default_init_expr): Don't initialize
ASSOCIATE names.
2012-06-05 Tobias Burnus <burnus@net-b.de>
PR fortran/50619
* gfortran.dg/init_flag_10.f90: New.
Added:
branches/gcc-4_6-branch/gcc/testsuite/gfortran.dg/init_flag_10.f90
Modified:
branches/gcc-4_6-branch/gcc/fortran/ChangeLog
branches/gcc-4_6-branch/gcc/fortran/resolve.c
branches/gcc-4_6-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
` (6 preceding siblings ...)
2012-06-05 13:05 ` burnus at gcc dot gnu.org
@ 2012-06-14 13:05 ` burnus at gcc dot gnu.org
2012-06-14 13:07 ` burnus at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-14 13:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
--- Comment #8 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-14 13:04:57 UTC ---
Author: burnus
Date: Thu Jun 14 13:04:43 2012
New Revision: 188617
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188617
Log:
2012-06-14 Tobias Burnus <burnus@net-b.de>
Backport from mainline
2012-06-04 Tobias Burnus <burnus@net-b.de>
PR fortran/50619
* resolve.c (build_default_init_expr): Don't initialize
ASSOCIATE names.
2012-06-14 Tobias Burnus <burnus@net-b.de>
Backport from mainline
2012-06-04 Tobias Burnus <burnus@net-b.de>
PR fortran/50619
* gfortran.dg/init_flag_10.f90: New.
Added:
branches/gcc-4_7-branch/gcc/testsuite/gfortran.dg/init_flag_10.f90
Modified:
branches/gcc-4_7-branch/gcc/fortran/ChangeLog
branches/gcc-4_7-branch/gcc/fortran/resolve.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/50619] Surprising interaction between -finit-real=NAN and the associate construct
2011-10-04 22:00 [Bug fortran/50619] New: Surprising interaction between -finit-real=NAN and the associate construct fkrogh#gcc at mathalacarte dot com
` (7 preceding siblings ...)
2012-06-14 13:05 ` burnus at gcc dot gnu.org
@ 2012-06-14 13:07 ` burnus at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-14 13:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50619
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
--- Comment #9 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-14 13:06:54 UTC ---
FIXED on all affected branches: On the (4.8) trunk and the 4.6 and the 4.7
branches. (Note that the patch came too late for the 4.7.1 release.)
^ permalink raw reply [flat|nested] 10+ messages in thread