* [Bug tree-optimization/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
@ 2006-06-16 13:49 ` jakub at gcc dot gnu dot org
2006-06-16 18:02 ` [Bug c++/28058] " pinskia at gcc dot gnu dot org
` (12 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-06-16 13:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2006-06-16 13:47 -------
The problem seems to be that cp_cannot_inline_tree_fn changes *fnp to
whatever instantiate_decl returned and that function has not been lowered yet.
Not sure if it is at all possible to cgraph_lower_function from within
inlinable_function_p (i.e. if cgraph_analyze_function is reentrant) and if yes,
if that's supposed to be cp_cannot_inline_tree_fn's responsibility.
In any case, the testcase works if foo is moved to the end of the file, at
which
point the template is already lowered.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
2006-06-16 13:49 ` [Bug tree-optimization/28058] " jakub at gcc dot gnu dot org
@ 2006-06-16 18:02 ` pinskia at gcc dot gnu dot org
2006-06-16 22:55 ` bangerth at dealii dot org
` (11 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-06-16 18:02 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|tree-optimization |c++
Target Milestone|--- |4.1.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
2006-06-16 13:49 ` [Bug tree-optimization/28058] " jakub at gcc dot gnu dot org
2006-06-16 18:02 ` [Bug c++/28058] " pinskia at gcc dot gnu dot org
@ 2006-06-16 22:55 ` bangerth at dealii dot org
2006-06-16 22:57 ` bangerth at dealii dot org
` (10 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: bangerth at dealii dot org @ 2006-06-16 22:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from bangerth at dealii dot org 2006-06-16 22:51 -------
Confirmed.
--
bangerth at dealii dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-06-16 22:51:36
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (2 preceding siblings ...)
2006-06-16 22:55 ` bangerth at dealii dot org
@ 2006-06-16 22:57 ` bangerth at dealii dot org
2006-06-25 5:31 ` pinskia at gcc dot gnu dot org
` (9 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: bangerth at dealii dot org @ 2006-06-16 22:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from bangerth at dealii dot org 2006-06-16 22:55 -------
The code is invalid, however: explicit specializations must be declared
before they are first used. In the snippet, B<A>::B is used in foo()
before the specialization is declared. The ICE consequently also goes
away if a declaration (not definition) of the specialization precedes foo().
That all doesn't make it any more forgivable that we ICE on this code,
however.
W.
--
bangerth at dealii dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-invalid-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (3 preceding siblings ...)
2006-06-16 22:57 ` bangerth at dealii dot org
@ 2006-06-25 5:31 ` pinskia at gcc dot gnu dot org
2006-07-12 16:39 ` reichelt 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 @ 2006-06-25 5:31 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2006-06-24 23:53 -------
*** Bug 28159 has been marked as a duplicate of this bug. ***
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vapier at gentoo dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (4 preceding siblings ...)
2006-06-25 5:31 ` pinskia at gcc dot gnu dot org
@ 2006-07-12 16:39 ` reichelt at gcc dot gnu dot org
2006-07-17 2:43 ` mmitchel at gcc dot gnu dot org
` (7 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2006-07-12 16:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from reichelt at gcc dot gnu dot org 2006-07-12 16:39 -------
Here's a testcase that crashes even at -O0 since GCC 4.1.0:
===========================
template<int> struct A
{
A() {}
};
A<0> a;
template<> A<0>::A() {}
===========================
As Wolfgang already mentioned: explicit specializations must be declared
before they are first used.
However, no diagnostic is required. (Which indicates that such situations
are hard to detect reliably.)
--
reichelt at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |reichelt at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (5 preceding siblings ...)
2006-07-12 16:39 ` reichelt at gcc dot gnu dot org
@ 2006-07-17 2:43 ` mmitchel at gcc dot gnu dot org
2006-07-21 20:36 ` hubicka at gcc dot gnu dot org
` (6 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-07-17 2:43 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (6 preceding siblings ...)
2006-07-17 2:43 ` mmitchel at gcc dot gnu dot org
@ 2006-07-21 20:36 ` hubicka at gcc dot gnu dot org
2006-08-14 16:17 ` janis at gcc dot gnu dot org
` (5 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2006-07-21 20:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from hubicka at gcc dot gnu dot org 2006-07-21 20:36 -------
cgraph_analyze_function is reentrant for non-unit-at-a-time support. However
with unit-at-a-time, the analysis happens only after unit has been finalized
and at that time frontend is not supposed to come up with new functions
anymore. It would be a lot better to make C++ frontend to handle this case
early (probably diagnose the invalid code?), but I don't quite understand this
area of compiler, so if someone C++ aware would tell me it is dificult, we can
do it as workaround.
Honza
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (7 preceding siblings ...)
2006-07-21 20:36 ` hubicka at gcc dot gnu dot org
@ 2006-08-14 16:17 ` janis at gcc dot gnu dot org
2006-08-26 16:48 ` mmitchel at gcc dot gnu dot org
` (4 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: janis at gcc dot gnu dot org @ 2006-08-14 16:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from janis at gcc dot gnu dot org 2006-08-14 16:16 -------
Regression hunts on powerpc-linux showed that the original testcase with -O3
and the testcase in comment #5 with -O0 both start getting segfaults with the
following patch:
http://gcc.gnu.org/viewcvs?view=rev&rev=99840
r99840 | hubicka | 2005-05-17 16:56:32 +0000 (Tue, 17 May 2005)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (8 preceding siblings ...)
2006-08-14 16:17 ` janis at gcc dot gnu dot org
@ 2006-08-26 16:48 ` mmitchel at gcc dot gnu dot org
2006-08-26 16:54 ` mmitchel at gcc dot gnu dot org
` (3 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-08-26 16:48 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |mark at codesourcery dot com
|dot org |
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (9 preceding siblings ...)
2006-08-26 16:48 ` mmitchel at gcc dot gnu dot org
@ 2006-08-26 16:54 ` mmitchel at gcc dot gnu dot org
2006-08-27 17:45 ` mmitchel at gcc dot gnu dot org
` (2 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-08-26 16:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from mmitchel at gcc dot gnu dot org 2006-08-26 16:53 -------
We do have code to notice use-before-specialization errors. For example:
template <typename T> void f();
void g() {
f<int>();
}
template <> void f<int>() {}
results in an error.
However, the code to initialize static variables is not generated until
end-of-file, so we do not realize that we are in this situation. (See
expand_static_init for the point at which we defer initialization.)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (10 preceding siblings ...)
2006-08-26 16:54 ` mmitchel at gcc dot gnu dot org
@ 2006-08-27 17:45 ` mmitchel at gcc dot gnu dot org
2006-08-27 18:00 ` mmitchel at gcc dot gnu dot org
2006-08-27 18:01 ` mmitchel at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-08-27 17:45 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from mmitchel at gcc dot gnu dot org 2006-08-27 17:45 -------
Subject: Bug 28058
Author: mmitchel
Date: Sun Aug 27 17:45:25 2006
New Revision: 116491
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116491
Log:
PR c++/28058
* pt.c (register_specialization): Return error_mark_node for
specialization-after-instantiation.
* decl2.c (mark_used): Mark the main function used when one of its
clones is used.
PR c++/28058
* g++.dg/template/spec31.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/template/spec31.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/decl2.c
trunk/gcc/cp/pt.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (11 preceding siblings ...)
2006-08-27 17:45 ` mmitchel at gcc dot gnu dot org
@ 2006-08-27 18:00 ` mmitchel at gcc dot gnu dot org
2006-08-27 18:01 ` mmitchel at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-08-27 18:00 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from mmitchel at gcc dot gnu dot org 2006-08-27 18:00 -------
Subject: Bug 28058
Author: mmitchel
Date: Sun Aug 27 17:59:55 2006
New Revision: 116492
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116492
Log:
PR c++/28058
* pt.c (register_specialization): Return error_mark_node for
specialization-after-instantiation.
* decl2.c (mark_used): Mark the main function used when one of its
clones is used.
PR c++/28058
* g++.dg/template/spec31.C: New test.
* g++.old-deja/g++.pt/spec9.C: Adjust error markers.
Added:
branches/gcc-4_1-branch/gcc/testsuite/g++.dg/template/spec31.C
Modified:
branches/gcc-4_1-branch/gcc/cp/ChangeLog
branches/gcc-4_1-branch/gcc/cp/decl2.c
branches/gcc-4_1-branch/gcc/cp/pt.c
branches/gcc-4_1-branch/gcc/testsuite/ChangeLog
branches/gcc-4_1-branch/gcc/testsuite/g++.old-deja/g++.pt/spec9.C
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/28058] [4.1/4.2 regression] ICE in inline_forbidden_p
2006-06-16 13:08 [Bug tree-optimization/28058] New: [4.1/4.2 regression] ICE in inline_forbidden_p jakub at gcc dot gnu dot org
` (12 preceding siblings ...)
2006-08-27 18:00 ` mmitchel at gcc dot gnu dot org
@ 2006-08-27 18:01 ` mmitchel at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-08-27 18:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from mmitchel at gcc dot gnu dot org 2006-08-27 18:00 -------
Fixed in 4.1.2.
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28058
^ permalink raw reply [flat|nested] 15+ messages in thread