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* [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning
@ 2009-07-05 14:39 sezeroz at gmail dot com
2009-07-05 18:09 ` [Bug libstdc++/40654] " paolo dot carlini at oracle dot com
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: sezeroz at gmail dot com @ 2009-07-05 14:39 UTC (permalink / raw)
To: gcc-bugs
During compilation of libstdc++ for i686-pc-mingw32, I noticed this warning:
../../../../gcc44-svn/libstdc++-v3/src/atomic.cc:83: warning: 'd' is used
uninitialized in this function
../../../../gcc44-svn/libstdc++-v3/src/atomic.cc:83: note: 'd' was declared
here
Notice the 'is used' and not 'maybe used'. The warning was noted with gcc
shapshot r149016 from gcc-4_4-branch. Does not happen for x86_64-pc-mingw32.
The toolchain was compiled against mingw-w64 header-set and crt.
--
Summary: atomic.cc: 'd' is used uninitialized warning
Product: gcc
Version: 4.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: sezeroz at gmail dot com
GCC target triplet: i686-pc-mingw32
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
@ 2009-07-05 18:09 ` paolo dot carlini at oracle dot com
2009-07-06 23:55 ` bkoz at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: paolo dot carlini at oracle dot com @ 2009-07-05 18:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from paolo dot carlini at oracle dot com 2009-07-05 18:08 -------
Benjamin, can you have a look? To me, it seems a back-end issue in the
compiler, because I don't see anything wrong in the code...
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bkoz at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
2009-07-05 18:09 ` [Bug libstdc++/40654] " paolo dot carlini at oracle dot com
@ 2009-07-06 23:55 ` bkoz at gcc dot gnu dot org
2009-07-22 14:29 ` [Bug libstdc++/40654] [C++0x] " paolo dot carlini at oracle dot com
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2009-07-06 23:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from bkoz at gcc dot gnu dot org 2009-07-06 23:55 -------
Yes, I will look at this. I think Ben Elliston pointed this out right after
4.4.0 was released, along with some other uninitialized warnings that I then
fixed.
Apparently this is also visible on ppc.
--
bkoz at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |bkoz at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-07-06 23:55:04
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] [C++0x] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
2009-07-05 18:09 ` [Bug libstdc++/40654] " paolo dot carlini at oracle dot com
2009-07-06 23:55 ` bkoz at gcc dot gnu dot org
@ 2009-07-22 14:29 ` paolo dot carlini at oracle dot com
2009-10-16 7:48 ` bkoz at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: paolo dot carlini at oracle dot com @ 2009-07-22 14:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from paolo dot carlini at oracle dot com 2009-07-22 14:28 -------
See also PR40825.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] [C++0x] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
` (2 preceding siblings ...)
2009-07-22 14:29 ` [Bug libstdc++/40654] [C++0x] " paolo dot carlini at oracle dot com
@ 2009-10-16 7:48 ` bkoz at gcc dot gnu dot org
2009-10-16 19:49 ` sezeroz at gmail dot com
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2009-10-16 7:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from bkoz at gcc dot gnu dot org 2009-10-16 07:47 -------
Subject: Bug 40654
Author: bkoz
Date: Fri Oct 16 07:47:33 2009
New Revision: 152895
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152895
Log:
2009-10-15 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/40654
PR libstdc++/40826
* src/atomic.cc (atomic_flag_test_and_set_explicit): Add
static_cast from base to derived.
(atomic_flag_clear_explicit): Same.
* include/bits/atomic_2.h (__atomic2::atomic_flag): Public derivation.
Remove value type constructor.
* include/bits/atomic_0.h (__atomic0::atomic_flag): Same.
* include/std/future (_Future_state): Use ATOMIC_FLAG_INIT to
initialized the atomic_flag member.
Added:
trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/clear/
trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/clear/1.c
trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/clear/1.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/atomic_0.h
trunk/libstdc++-v3/include/bits/atomic_2.h
trunk/libstdc++-v3/include/std/future
trunk/libstdc++-v3/src/atomic.cc
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] [C++0x] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
` (3 preceding siblings ...)
2009-10-16 7:48 ` bkoz at gcc dot gnu dot org
@ 2009-10-16 19:49 ` sezeroz at gmail dot com
2009-10-18 3:30 ` bkoz at gcc dot gnu dot org
2009-10-19 16:46 ` bkoz at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: sezeroz at gmail dot com @ 2009-10-16 19:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from sezeroz at gmail dot com 2009-10-16 19:49 -------
Any chance for a backport to 4.4 ?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] [C++0x] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
` (4 preceding siblings ...)
2009-10-16 19:49 ` sezeroz at gmail dot com
@ 2009-10-18 3:30 ` bkoz at gcc dot gnu dot org
2009-10-19 16:46 ` bkoz at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2009-10-18 3:30 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from bkoz at gcc dot gnu dot org 2009-10-18 03:30 -------
Subject: Bug 40654
Author: bkoz
Date: Sun Oct 18 03:30:03 2009
New Revision: 152965
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152965
Log:
2009-10-16 Benjamin Kosnik <bkoz@redhat.com>
* include/c_compatibility/stdatomic.h: Include cstdatomic if
__cplusplus.
2009-10-15 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/40654
PR libstdc++/40826
* src/atomic.cc (atomic_flag_test_and_set_explicit): Add
static_cast from base to derived.
(atomic_flag_clear_explicit): Same.
* include/bits/atomic_2.h (__atomic2::atomic_flag): Public derivation.
Remove value type constructor.
* include/bits/atomic_0.h (__atomic0::atomic_flag): Same.
* include/std/future (_Future_state): Use ATOMIC_FLAG_INIT to
initialized the atomic_flag member.
Added:
branches/gcc-4_4-branch/libstdc++-v3/testsuite/29_atomics/atomic_flag/clear/
branches/gcc-4_4-branch/libstdc++-v3/testsuite/29_atomics/atomic_flag/clear/1.c
branches/gcc-4_4-branch/libstdc++-v3/testsuite/29_atomics/atomic_flag/clear/1.cc
branches/gcc-4_4-branch/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/1.cc
Modified:
branches/gcc-4_4-branch/libstdc++-v3/ChangeLog
branches/gcc-4_4-branch/libstdc++-v3/include/bits/atomic_0.h
branches/gcc-4_4-branch/libstdc++-v3/include/bits/atomic_2.h
branches/gcc-4_4-branch/libstdc++-v3/include/c_compatibility/stdatomic.h
branches/gcc-4_4-branch/libstdc++-v3/src/atomic.cc
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/40654] [C++0x] atomic.cc: 'd' is used uninitialized warning
2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
` (5 preceding siblings ...)
2009-10-18 3:30 ` bkoz at gcc dot gnu dot org
@ 2009-10-19 16:46 ` bkoz at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2009-10-19 16:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from bkoz at gcc dot gnu dot org 2009-10-19 16:46 -------
In for gcc-4.4.3
--
bkoz at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.4.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40654
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2009-10-19 16:46 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2009-07-05 14:39 [Bug libstdc++/40654] New: atomic.cc: 'd' is used uninitialized warning sezeroz at gmail dot com
2009-07-05 18:09 ` [Bug libstdc++/40654] " paolo dot carlini at oracle dot com
2009-07-06 23:55 ` bkoz at gcc dot gnu dot org
2009-07-22 14:29 ` [Bug libstdc++/40654] [C++0x] " paolo dot carlini at oracle dot com
2009-10-16 7:48 ` bkoz at gcc dot gnu dot org
2009-10-16 19:49 ` sezeroz at gmail dot com
2009-10-18 3:30 ` bkoz at gcc dot gnu dot org
2009-10-19 16:46 ` bkoz at gcc dot gnu dot org
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