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* [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code
@ 2009-08-17 13:54 mark at gcc dot gnu dot org
2009-08-17 14:21 ` [Bug c++/41090] " dodji at gcc dot gnu dot org
` (13 more replies)
0 siblings, 14 replies; 15+ messages in thread
From: mark at gcc dot gnu dot org @ 2009-08-17 13:54 UTC (permalink / raw)
To: gcc-bugs
The following code compiles, but won't link:
#include <iostream>
using namespace std;
class C
{
public:
C()
{
static void *labelref = &&label;
goto *labelref;
label: cout << "hello" << endl;
}
};
int
main (int argc, char **argv)
{
C inst = C();
return 0;
}
$ g++ label.cxx
/tmp/ccirWO3W.o:(.data._ZZN1CC1EvE8labelref[C::C()::labelref]+0x0): undefined
reference to `.L11'
collect2: ld returned 1 exit status
--
Summary: Using static label reference in c++ class constructor
produces wrong code
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mark at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
@ 2009-08-17 14:21 ` dodji at gcc dot gnu dot org
2009-08-17 14:27 ` mikpe at it dot uu dot se
` (12 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: dodji at gcc dot gnu dot org @ 2009-08-17 14:21 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from dodji at gcc dot gnu dot org 2009-08-17 14:21 -------
Confirmed in trunk as well.
--
dodji at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dodji at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-08-17 14:21:06
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
2009-08-17 14:21 ` [Bug c++/41090] " dodji at gcc dot gnu dot org
@ 2009-08-17 14:27 ` mikpe at it dot uu dot se
2009-09-18 5:15 ` [Bug c++/41090] [4.3/4.4/4.5 Regression] " pinskia at gcc dot gnu dot org
` (11 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: mikpe at it dot uu dot se @ 2009-08-17 14:27 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from mikpe at it dot uu dot se 2009-08-17 14:26 -------
Similar linkage error occurs with gcc-4.3.4.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
2009-08-17 14:21 ` [Bug c++/41090] " dodji at gcc dot gnu dot org
2009-08-17 14:27 ` mikpe at it dot uu dot se
@ 2009-09-18 5:15 ` pinskia at gcc dot gnu dot org
2009-09-18 9:03 ` rguenth at gcc dot gnu dot org
` (10 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2009-09-18 5:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gcc dot gnu dot org 2009-09-18 05:14 -------
Confirmed, 3.3 used to work.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |assemble-failure, link-
| |failure
Known to fail| |4.0.1 4.4.0 4.5.0
Known to work| |3.3
Summary|Using static label reference|[4.3/4.4/4.5 Regression]
|in c++ class constructor |Using static label reference
|produces wrong code |in c++ class constructor
| |produces wrong code
Target Milestone|--- |4.3.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (2 preceding siblings ...)
2009-09-18 5:15 ` [Bug c++/41090] [4.3/4.4/4.5 Regression] " pinskia at gcc dot gnu dot org
@ 2009-09-18 9:03 ` rguenth at gcc dot gnu dot org
2009-09-28 21:38 ` pinskia at gcc dot gnu dot org
` (9 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-09-18 9:03 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (3 preceding siblings ...)
2009-09-18 9:03 ` rguenth at gcc dot gnu dot org
@ 2009-09-28 21:38 ` pinskia at gcc dot gnu dot org
2009-11-09 22:44 ` jason at gcc dot gnu dot org
` (8 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2009-09-28 21:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2009-09-28 21:37 -------
Hmm, this is harder than I thought it would be. The issue is we have only one
labelref but really two label.
I don't know if we can support this with the way cloning is done ...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (4 preceding siblings ...)
2009-09-28 21:38 ` pinskia at gcc dot gnu dot org
@ 2009-11-09 22:44 ` jason at gcc dot gnu dot org
2010-01-29 17:20 ` jason at gcc dot gnu dot org
` (7 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jason at gcc dot gnu dot org @ 2009-11-09 22:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jason at gcc dot gnu dot org 2009-11-09 22:43 -------
Yeah, there's no way to get this right in general with our unconditional
cloning.
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |3187
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (5 preceding siblings ...)
2009-11-09 22:44 ` jason at gcc dot gnu dot org
@ 2010-01-29 17:20 ` jason at gcc dot gnu dot org
2010-02-03 0:08 ` jason at gcc dot gnu dot org
` (6 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jason at gcc dot gnu dot org @ 2010-01-29 17:20 UTC (permalink / raw)
To: gcc-bugs
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jason at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2009-08-17 14:21:06 |2010-01-29 17:20:04
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (6 preceding siblings ...)
2010-01-29 17:20 ` jason at gcc dot gnu dot org
@ 2010-02-03 0:08 ` jason at gcc dot gnu dot org
2010-02-03 1:15 ` jason at gcc dot gnu dot org
` (5 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jason at gcc dot gnu dot org @ 2010-02-03 0:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jason at gcc dot gnu dot org 2010-02-03 00:08 -------
Subject: Bug 41090
Author: jason
Date: Wed Feb 3 00:07:49 2010
New Revision: 156455
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=156455
Log:
PR c++/41090
* decl.c (cp_finish_decl): Add local statics to cfun->local_decls.
* optimize.c (clone_body): Remap their initializers when making base
variants.
(maybe_clone_body): Complain if multiple clones aren't safe.
Added:
trunk/gcc/testsuite/g++.dg/ext/label13.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/decl.c
trunk/gcc/cp/optimize.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (7 preceding siblings ...)
2010-02-03 0:08 ` jason at gcc dot gnu dot org
@ 2010-02-03 1:15 ` jason at gcc dot gnu dot org
2010-02-04 23:36 ` howarth at nitro dot med dot uc dot edu
` (4 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jason at gcc dot gnu dot org @ 2010-02-03 1:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from jason at gcc dot gnu dot org 2010-02-03 01:14 -------
The testcase now works, but a variant that uses virtual inheritance does not:
int i;
struct A { A() {} };
struct C: virtual A
{
C();
};
C::C()
{
static void *labelref = &&label;
goto *labelref;
label: i = 1;
}
int main()
{
C c;
}
Unassigning myself now.
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu dot org
AssignedTo|jason at gcc dot gnu dot org|unassigned at gcc dot gnu
| |dot org
Status|ASSIGNED |NEW
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (8 preceding siblings ...)
2010-02-03 1:15 ` jason at gcc dot gnu dot org
@ 2010-02-04 23:36 ` howarth at nitro dot med dot uc dot edu
2010-02-05 1:41 ` jason at gcc dot gnu dot org
` (3 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: howarth at nitro dot med dot uc dot edu @ 2010-02-04 23:36 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1885 bytes --]
------- Comment #8 from howarth at nitro dot med dot uc dot edu 2010-02-04 23:35 -------
The new g++.dg/ext/label13.C testcase fails on *-apple-darwin*. On
x86_64-apple-darwin10, the error message is...
/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/gcc/testsuite/g++/../../g++
-B/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/gcc/testsuite/g++/../../
/sw/src/fink.build/gcc45-4.4.999-20100203/gcc-4.5-20100203/gcc/testsuite/g++.dg/ext/label13.C
-nostdinc++
-I/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/x86_64-apple-darwin10.3.0/libstdc++-v3/include/x86_64-apple-darwin10.3.0
-I/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/x86_64-apple-darwin10.3.0/libstdc++-v3/include
-I/sw/src/fink.build/gcc45-4.4.999-20100203/gcc-4.5-20100203/libstdc++-v3/libsupc++
-I/sw/src/fink.build/gcc45-4.4.999-20100203/gcc-4.5-20100203/libstdc++-v3/include/backward
-I/sw/src/fink.build/gcc45-4.4.999-20100203/gcc-4.5-20100203/libstdc++-v3/testsuite/util
-fmessage-length=0
-L/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/x86_64-apple-darwin10.3.0/./libstdc++-v3/src/.libs
-B/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/x86_64-apple-darwin10.3.0/./libstdc++-v3/src/.libs
-L/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/x86_64-apple-darwin10.3.0/./libstdc++-v3/src/.libs
-L/sw/src/fink.build/gcc45-4.4.999-20100203/darwin_objdir/x86_64-apple-darwin10.3.0/./libiberty
-multiply_defined suppress -lm -o ./label13.exe
/sw/src/fink.build/gcc45-4.4.999-20100203/gcc-4.5-20100203/gcc/testsuite/g++.dg/ext/label13.C:
In constructor C::C():
/sw/src/fink.build/gcc45-4.4.999-20100203/gcc-4.5-20100203/gcc/testsuite/g++.dg/ext/label13.C:8:3:
sorry, unimplemented: function C::C() can never be copied because it saves
address of local label in a static variable
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (9 preceding siblings ...)
2010-02-04 23:36 ` howarth at nitro dot med dot uc dot edu
@ 2010-02-05 1:41 ` jason at gcc dot gnu dot org
2010-03-02 19:40 ` mrs at gcc dot gnu dot org
` (2 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jason at gcc dot gnu dot org @ 2010-02-05 1:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from jason at gcc dot gnu dot org 2010-02-05 01:41 -------
Ah, I guess we don't support the same body alias optimization on darwin, so the
testcase should be restricted to targets that do support it.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (10 preceding siblings ...)
2010-02-05 1:41 ` jason at gcc dot gnu dot org
@ 2010-03-02 19:40 ` mrs at gcc dot gnu dot org
2010-05-22 18:34 ` [Bug c++/41090] [4.3/4.4/4.5/4.6 " rguenth at gcc dot gnu dot org
2010-06-19 0:28 ` danglin at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: mrs at gcc dot gnu dot org @ 2010-03-02 19:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from mrs at gcc dot gnu dot org 2010-03-02 19:40 -------
Subject: Bug 41090
Author: mrs
Date: Tue Mar 2 19:40:02 2010
New Revision: 157172
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157172
Log:
PR c++/41090
* g++.dg/ext/label13.C (C::C): xfail for darwin for now.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/ext/label13.C
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5/4.6 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (11 preceding siblings ...)
2010-03-02 19:40 ` mrs at gcc dot gnu dot org
@ 2010-05-22 18:34 ` rguenth at gcc dot gnu dot org
2010-06-19 0:28 ` danglin at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-05-22 18:34 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from rguenth at gcc dot gnu dot org 2010-05-22 18:13 -------
GCC 4.3.5 is being released, adjusting target milestone.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.3.5 |4.3.6
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/41090] [4.3/4.4/4.5/4.6 Regression] Using static label reference in c++ class constructor produces wrong code
2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
` (12 preceding siblings ...)
2010-05-22 18:34 ` [Bug c++/41090] [4.3/4.4/4.5/4.6 " rguenth at gcc dot gnu dot org
@ 2010-06-19 0:28 ` danglin at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: danglin at gcc dot gnu dot org @ 2010-06-19 0:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from danglin at gcc dot gnu dot org 2010-06-19 00:28 -------
Subject: Bug 41090
Author: danglin
Date: Sat Jun 19 00:28:18 2010
New Revision: 161018
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161018
Log:
PR c++/41090
* g++.dg/ext/label13.C: xfail on 32-bit hppa*-*-hpux*.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/ext/label13.C
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41090
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2010-06-19 0:28 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
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2009-08-17 13:54 [Bug c++/41090] New: Using static label reference in c++ class constructor produces wrong code mark at gcc dot gnu dot org
2009-08-17 14:21 ` [Bug c++/41090] " dodji at gcc dot gnu dot org
2009-08-17 14:27 ` mikpe at it dot uu dot se
2009-09-18 5:15 ` [Bug c++/41090] [4.3/4.4/4.5 Regression] " pinskia at gcc dot gnu dot org
2009-09-18 9:03 ` rguenth at gcc dot gnu dot org
2009-09-28 21:38 ` pinskia at gcc dot gnu dot org
2009-11-09 22:44 ` jason at gcc dot gnu dot org
2010-01-29 17:20 ` jason at gcc dot gnu dot org
2010-02-03 0:08 ` jason at gcc dot gnu dot org
2010-02-03 1:15 ` jason at gcc dot gnu dot org
2010-02-04 23:36 ` howarth at nitro dot med dot uc dot edu
2010-02-05 1:41 ` jason at gcc dot gnu dot org
2010-03-02 19:40 ` mrs at gcc dot gnu dot org
2010-05-22 18:34 ` [Bug c++/41090] [4.3/4.4/4.5/4.6 " rguenth at gcc dot gnu dot org
2010-06-19 0:28 ` danglin at gcc dot gnu dot org
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