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* [Bug fortran/53597] New: [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable
@ 2012-06-06 20:43 burnus at gcc dot gnu.org
2012-06-13 11:56 ` [Bug fortran/53597] " burnus at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-06 20:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53597
Bug #: 53597
Summary: [4.6/4.7/4.8 Regression] F95/F2003 constraint no
longer triggers: un-SAVED default-initialized module
variable
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Keywords: accepts-invalid, diagnostic
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: burnus@gcc.gnu.org
Based on the discussion at
https://groups.google.com/forum/?fromgroups#!topic/comp.lang.fortran/7QfDs7wtKVY
The following check in resolve.c does not trigger as attr.save ==
SAVE_IMPLICIT:
if (!(sym->value || no_init_flag) && sym->ns->proc_name
&& sym->ns->proc_name->attr.flavor == FL_MODULE
&& !sym->ns->save_all && !sym->attr.save
&& !sym->attr.pointer && !sym->attr.allocatable
&& gfc_has_default_initializer (sym->ts.u.derived)
&& gfc_notify_std (GFC_STD_F2008, "Fortran 2008: Implied SAVE for "
"module variable '%s' at %L, needed due to "
"the default initialization", sym->name,
when compiling the following program with -std=f95 or -std=f2003:
MODULE somemodule
IMPLICIT NONE
TYPE sometype
INTEGER :: i
DOUBLE PRECISION, POINTER, DIMENSION(:,:) :: coef => NULL()
END TYPE sometype
TYPE(sometype) :: somevariable
END MODULE somemodule
Possible patches:
a) Check for (sym->attr.save == SAVE_EXPLICIT || sym->value)
b) Use the patch below:
--- a/gcc/fortran/decl.c
+++ b/gcc/fortran/decl.c
@@ -3810,8 +3810,9 @@ match_attr_spec (void)
}
}
- /* Module variables implicitly have the SAVE attribute. */
- if (gfc_current_state () == COMP_MODULE && !current_attr.save)
+ /* Since Fortran 2008 module variables implicitly have the SAVE attribute.
*/
+ if (gfc_current_state () == COMP_MODULE && !current_attr.save
+ && (gfc_option.allow_std & GFC_STD_F2008) != 0)
current_attr.save = SAVE_IMPLICIT;
colon_seen = 1;
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/53597] [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable
2012-06-06 20:43 [Bug fortran/53597] New: [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable burnus at gcc dot gnu.org
@ 2012-06-13 11:56 ` burnus at gcc dot gnu.org
2012-06-14 13:01 ` burnus at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-13 11:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53597
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-13 11:56:18 UTC ---
Author: burnus
Date: Wed Jun 13 11:56:08 2012
New Revision: 188506
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188506
Log:
2012-06-13 Tobias Burnus <burnus@net-b.de>
PR fortran/53597
* decl.c (match_attr_spec): Only mark module variables
as SAVE_IMPLICIT for Fortran 2008 and later.
2012-06-13 Tobias Burnus <burnus@net-b.de>
PR fortran/53597
* gfortran.dg/save_4.f90: New.
Added:
trunk/gcc/testsuite/gfortran.dg/save_4.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/decl.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/53597] [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable
2012-06-06 20:43 [Bug fortran/53597] New: [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable burnus at gcc dot gnu.org
2012-06-13 11:56 ` [Bug fortran/53597] " burnus at gcc dot gnu.org
@ 2012-06-14 13:01 ` burnus at gcc dot gnu.org
2012-06-14 13:11 ` burnus at gcc dot gnu.org
2012-06-14 13:13 ` burnus at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-14 13:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53597
--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-14 13:00:55 UTC ---
Author: burnus
Date: Thu Jun 14 13:00:50 2012
New Revision: 188614
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188614
Log:
2012-06-14 Tobias Burnus <burnus@net-b.de>
PR fortran/53597
* decl.c (match_attr_spec): Only mark module variables
as SAVE_IMPLICIT for Fortran 2008 and later.
2012-06-14 Tobias Burnus <burnus@net-b.de>
PR fortran/53597
* gfortran.dg/save_4.f90: New.
Added:
branches/gcc-4_7-branch/gcc/testsuite/gfortran.dg/save_4.f90
Modified:
branches/gcc-4_7-branch/gcc/fortran/ChangeLog
branches/gcc-4_7-branch/gcc/fortran/decl.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/53597] [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable
2012-06-06 20:43 [Bug fortran/53597] New: [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable burnus at gcc dot gnu.org
2012-06-13 11:56 ` [Bug fortran/53597] " burnus at gcc dot gnu.org
2012-06-14 13:01 ` burnus at gcc dot gnu.org
@ 2012-06-14 13:11 ` burnus at gcc dot gnu.org
2012-06-14 13:13 ` burnus at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-14 13:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53597
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-14 13:11:32 UTC ---
Author: burnus
Date: Thu Jun 14 13:11:27 2012
New Revision: 188618
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188618
Log:
2012-06-14 Tobias Burnus <burnus@net-b.de>
PR fortran/53597
* decl.c (match_attr_spec): Only mark module variables
as SAVE_IMPLICIT for Fortran 2008 and later.
2012-06-14 Tobias Burnus <burnus@net-b.de>
PR fortran/53597
* gfortran.dg/save_4.f90: New.
Added:
branches/gcc-4_6-branch/gcc/testsuite/gfortran.dg/save_4.f90
Modified:
branches/gcc-4_6-branch/gcc/fortran/ChangeLog
branches/gcc-4_6-branch/gcc/fortran/decl.c
branches/gcc-4_6-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/53597] [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable
2012-06-06 20:43 [Bug fortran/53597] New: [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable burnus at gcc dot gnu.org
` (2 preceding siblings ...)
2012-06-14 13:11 ` burnus at gcc dot gnu.org
@ 2012-06-14 13:13 ` burnus at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu.org @ 2012-06-14 13:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53597
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |burnus at gcc dot gnu.org
Resolution| |FIXED
--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-06-14 13:13:11 UTC ---
FIXED on the (4.8) trunk and on the 4.6 and 4.7 branches. (The commit came too
late for 4.7.1.)
^ permalink raw reply [flat|nested] 5+ messages in thread
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2012-06-06 20:43 [Bug fortran/53597] New: [4.6/4.7/4.8 Regression] F95/F2003 constraint no longer triggers: un-SAVED default-initialized module variable burnus at gcc dot gnu.org
2012-06-13 11:56 ` [Bug fortran/53597] " burnus at gcc dot gnu.org
2012-06-14 13:01 ` burnus at gcc dot gnu.org
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