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* [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result
@ 2013-09-13 8:47 vladimir.fuka at gmail dot com
2013-09-15 22:02 ` [Bug fortran/58410] [4.8/4.9 Regression] " janus at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: vladimir.fuka at gmail dot com @ 2013-09-13 8:47 UTC (permalink / raw)
To: gcc-bugs
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
Bug ID: 58410
Summary: Bogus uninitialized variable warning for allocatable
derived type array function result
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: vladimir.fuka at gmail dot com
gfortran -c -Wall -O2 uninit.f90
uninit.f90: In function âsubâ:
uninit.f90:22:0: warning: ânew.dim[0].uboundâ may be used uninitialized in this
function [-Wmaybe-uninitialized]
new = fun()
^
gfortran -c -Wall -O1 uninit.f90
without warning
gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/local/gcc-4.8/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.8-20130509/configure --enable-languages=c,c++,fortran
--with-cloog --prefix=/usr/local/gcc-4.8
Thread model: posix
gcc version 4.8.1 20130509 (prerelease) (GCC)
>From gcc-bugs-return-429727-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Sep 13 08:48:25 2013
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From: "vladimir.fuka at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/58410] Bogus uninitialized variable warning for allocatable derived type array function result
Date: Fri, 13 Sep 2013 08:48:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 4.8.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: vladimir.fuka at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idX410
--- Comment #1 from Vladimir Fuka <vladimir.fuka at gmail dot com> ---
Created attachment 30815
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id0815&actioníit
uninit.f90
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
@ 2013-09-15 22:02 ` janus at gcc dot gnu.org
2013-11-18 19:28 ` janus at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: janus at gcc dot gnu.org @ 2013-09-15 22:02 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
janus at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-09-15
CC| |janus at gcc dot gnu.org
Summary|Bogus uninitialized |[4.8/4.9 Regression] Bogus
|variable warning for |uninitialized variable
|allocatable derived type |warning for allocatable
|array function result |derived type array function
| |result
Ever confirmed|0 |1
--- Comment #2 from janus at gcc dot gnu.org ---
Confirmed with 4.8 and trunk. The bogus warning does not seem to appear with
4.7.3.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
2013-09-15 22:02 ` [Bug fortran/58410] [4.8/4.9 Regression] " janus at gcc dot gnu.org
@ 2013-11-18 19:28 ` janus at gcc dot gnu.org
2013-11-19 9:51 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: janus at gcc dot gnu.org @ 2013-11-18 19:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
--- Comment #3 from janus at gcc dot gnu.org ---
Slightly reduced test case:
module m
implicit none
type series
real,allocatable :: a(:)
end type
contains
function fun()
type(series),allocatable :: fun(:)
allocate(fun(0))
end function
subroutine sub
type(series),allocatable :: new(:)
integer :: j
do j=1,2
new = fun()
end do
end subroutine
end module
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
2013-09-15 22:02 ` [Bug fortran/58410] [4.8/4.9 Regression] " janus at gcc dot gnu.org
2013-11-18 19:28 ` janus at gcc dot gnu.org
@ 2013-11-19 9:51 ` rguenth at gcc dot gnu.org
2013-11-21 14:30 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-19 9:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.8.3
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
` (2 preceding siblings ...)
2013-11-19 9:51 ` rguenth at gcc dot gnu.org
@ 2013-11-21 14:30 ` rguenth at gcc dot gnu.org
2013-11-30 18:47 ` pault at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-21 14:30 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic
Priority|P3 |P2
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
` (3 preceding siblings ...)
2013-11-21 14:30 ` rguenth at gcc dot gnu.org
@ 2013-11-30 18:47 ` pault at gcc dot gnu.org
2013-12-19 15:32 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pault at gcc dot gnu.org @ 2013-11-30 18:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
Paul Thomas <pault at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P2 |P3
CC| |pault at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |pault at gcc dot gnu.org
--- Comment #4 from Paul Thomas <pault at gcc dot gnu.org> ---
This is not a serious regression and so I have set it to P3.
That said, it is a real bug and I am just now regtesting the fix.
Assigning myself.
Paul
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
` (4 preceding siblings ...)
2013-11-30 18:47 ` pault at gcc dot gnu.org
@ 2013-12-19 15:32 ` rguenth at gcc dot gnu.org
2014-01-19 18:04 ` pault at gcc dot gnu.org
2014-01-19 18:07 ` pault at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-12-19 15:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
` (5 preceding siblings ...)
2013-12-19 15:32 ` rguenth at gcc dot gnu.org
@ 2014-01-19 18:04 ` pault at gcc dot gnu.org
2014-01-19 18:07 ` pault at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: pault at gcc dot gnu.org @ 2014-01-19 18:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
--- Comment #6 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Sun Jan 19 18:04:22 2014
New Revision: 206778
URL: http://gcc.gnu.org/viewcvs?rev=206778&root=gcc&view=rev
Log:
2014-01-19 Paul Thomas <pault@gcc.gnu.org>
PR fortran/58410
* trans-array.c (gfc_alloc_allocatable_for_assignment): Do not
use the array bounds of an unallocated array but set its size
to zero instead.
Modified:
branches/gcc-4_8-branch/gcc/fortran/ChangeLog
branches/gcc-4_8-branch/gcc/fortran/trans-array.c
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug fortran/58410] [4.8/4.9 Regression] Bogus uninitialized variable warning for allocatable derived type array function result
2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
` (6 preceding siblings ...)
2014-01-19 18:04 ` pault at gcc dot gnu.org
@ 2014-01-19 18:07 ` pault at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: pault at gcc dot gnu.org @ 2014-01-19 18:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58410
Paul Thomas <pault at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Paul Thomas <pault at gcc dot gnu.org> ---
Fixed on trunk and 4.8.
Thanks for the report
Paul
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2014-01-19 18:07 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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2013-09-13 8:47 [Bug fortran/58410] New: Bogus uninitialized variable warning for allocatable derived type array function result vladimir.fuka at gmail dot com
2013-09-15 22:02 ` [Bug fortran/58410] [4.8/4.9 Regression] " janus at gcc dot gnu.org
2013-11-18 19:28 ` janus at gcc dot gnu.org
2013-11-19 9:51 ` rguenth at gcc dot gnu.org
2013-11-21 14:30 ` rguenth at gcc dot gnu.org
2013-11-30 18:47 ` pault at gcc dot gnu.org
2013-12-19 15:32 ` rguenth at gcc dot gnu.org
2014-01-19 18:04 ` pault at gcc dot gnu.org
2014-01-19 18:07 ` pault at gcc dot gnu.org
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