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* [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification
@ 2007-06-06 10:33 jakub at gcc dot gnu dot org
2007-06-06 12:55 ` [Bug c++/32232] " rguenth at gcc dot gnu dot org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-06-06 10:33 UTC (permalink / raw)
To: gcc-bugs
// { dg-do compile }
template<typename T> struct A;
template<typename T> struct B {};
template<typename T> A<T>& operator<<(A<T>&, const B<T>&);
template<typename T>
struct A
{
A<T>& operator<<(A<T>& (*)(A<T>&));
};
template<typename T> A<T>& foo(A<T>&);
extern A<char> c;
int
main()
{
c << (1, foo);
}
ICEs in resolve_overloaded_unification with 3.4, 4.1.2 and the trunk, compiles
fine with 3.2.3.
--
Summary: [4.1/4.2/4.3 Regression] ICE in
resolve_overloaded_unification
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
@ 2007-06-06 12:55 ` rguenth at gcc dot gnu dot org
2007-06-29 18:40 ` mmitchel at gcc dot gnu dot org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-06-06 12:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2007-06-06 12:55 -------
Confirmed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |ice-on-valid-code
Known to fail| |3.4.0 4.1.2 4.2.0 4.3.0
Known to work| |3.3.6
Last reconfirmed|0000-00-00 00:00:00 |2007-06-06 12:55:38
date| |
Target Milestone|--- |4.1.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
2007-06-06 12:55 ` [Bug c++/32232] " rguenth at gcc dot gnu dot org
@ 2007-06-29 18:40 ` mmitchel at gcc dot gnu dot org
2007-07-06 2:56 ` mmitchel at gcc dot gnu dot org
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-06-29 18:40 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
2007-06-06 12:55 ` [Bug c++/32232] " rguenth at gcc dot gnu dot org
2007-06-29 18:40 ` mmitchel at gcc dot gnu dot org
@ 2007-07-06 2:56 ` mmitchel at gcc dot gnu dot org
2007-07-07 7:32 ` mmitchel at gcc dot gnu dot org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-06 2:56 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |mmitchel at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2007-06-06 12:55:38 |2007-07-06 02:56:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-07-06 2:56 ` mmitchel at gcc dot gnu dot org
@ 2007-07-07 7:32 ` mmitchel at gcc dot gnu dot org
2007-07-07 7:36 ` [Bug c++/32232] [4.1/4.2 " mmitchel at gcc dot gnu dot org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-07 7:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from mmitchel at gcc dot gnu dot org 2007-07-07 07:32 -------
Subject: Bug 32232
Author: mmitchel
Date: Sat Jul 7 07:31:54 2007
New Revision: 126435
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126435
Log:
PR c++/32232
* pt.c (resolve_overloaded_unification): Robustify. Return a
bool, not an int.
(type_unification_real): Adjust accordingly.
PR c++/32232
* g++.dg/template/overload9.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/template/overload9.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/pt.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1/4.2 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (3 preceding siblings ...)
2007-07-07 7:32 ` mmitchel at gcc dot gnu dot org
@ 2007-07-07 7:36 ` mmitchel at gcc dot gnu dot org
2007-07-07 19:16 ` mmitchel at gcc dot gnu dot org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-07 7:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from mmitchel at gcc dot gnu dot org 2007-07-07 07:36 -------
Fixed in 4.3.0.
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.1/4.2/4.3 Regression] ICE|[4.1/4.2 Regression] ICE in
|in |resolve_overloaded_unificati
|resolve_overloaded_unificati|on
|on |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1/4.2 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (4 preceding siblings ...)
2007-07-07 7:36 ` [Bug c++/32232] [4.1/4.2 " mmitchel at gcc dot gnu dot org
@ 2007-07-07 19:16 ` mmitchel at gcc dot gnu dot org
2007-07-07 19:16 ` [Bug c++/32232] [4.1 " mmitchel at gcc dot gnu dot org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-07 19:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from mmitchel at gcc dot gnu dot org 2007-07-07 19:16 -------
Subject: Bug 32232
Author: mmitchel
Date: Sat Jul 7 19:16:09 2007
New Revision: 126443
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126443
Log:
PR c++/32232
* pt.c (resolve_overloaded_unification): Robustify. Return a
bool, not an int.
(type_unification_real): Adjust accordingly.
PR c++/32232
* g++.dg/template/overload9.C: New test.
Added:
branches/gcc-4_2-branch/gcc/testsuite/g++.dg/template/overload9.C
Modified:
branches/gcc-4_2-branch/gcc/cp/ChangeLog
branches/gcc-4_2-branch/gcc/cp/pt.c
branches/gcc-4_2-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (5 preceding siblings ...)
2007-07-07 19:16 ` mmitchel at gcc dot gnu dot org
@ 2007-07-07 19:16 ` mmitchel at gcc dot gnu dot org
2007-07-11 23:04 ` reichelt at gcc dot gnu dot org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-07-07 19:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from mmitchel at gcc dot gnu dot org 2007-07-07 19:16 -------
Fixed in 4.2.1.
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|mmitchel at gcc dot gnu dot |unassigned at gcc dot gnu
|org |dot org
Status|ASSIGNED |NEW
Summary|[4.1/4.2 Regression] ICE in |[4.1 Regression] ICE in
|resolve_overloaded_unificati|resolve_overloaded_unificati
|on |on
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (6 preceding siblings ...)
2007-07-07 19:16 ` [Bug c++/32232] [4.1 " mmitchel at gcc dot gnu dot org
@ 2007-07-11 23:04 ` reichelt at gcc dot gnu dot org
2007-07-12 6:20 ` mark at codesourcery dot com
2008-07-04 16:08 ` jsm28 at gcc dot gnu dot org
9 siblings, 0 replies; 11+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2007-07-11 23:04 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from reichelt at gcc dot gnu dot org 2007-07-11 23:04 -------
Mark, I don't think the fix for this PR is complete, because the following
simplified testcase (which previously ICE'd) should compile IMHO:
=============================================================
template<typename> struct A
{
A& operator<<(void (*)(A&));
};
template<typename T> A<T>& operator<<(A<T>&, const A<T>&);
template<typename T> void foo(A<T>&);
void bar()
{
A<int>() << (1, foo<int>);
}
=============================================================
But it is rejected with the following error message:
bug.cc: In function 'void bar()':
bug.cc:12: error: no match for 'operator<<' in 'A<int>() << (0, foo<int>)'
bug.cc:3: note: candidates are: A< <template-parameter-1-1> >& A<
<template-parameter-1-1> >::operator<<(void (*)(A< <template-parameter-1-1>
>&)) [with <template-parameter-1-1> = int]
An even smaller testcase for this problem is the following:
=============================================================
struct A
{
A& operator<<(void (*)(A&));
};
template<typename> void foo(A&);
void bar()
{
A() << (1, foo<int>);
}
=============================================================
bug.cc: In function 'void bar()':
bug.cc:10: error: no match for 'operator<<' in 'A() << (0, foo<int>)'
bug.cc:3: note: candidates are: A& A::operator<<(void (*)(A&))
The code compiles fine, if I remove the "0,".
Btw, there's another glitch in the error message:
The code contains "(1, foo<int>)", which is printed as "(0, foo<int>)"
in the error message.
--
reichelt at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mark at codesourcery dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (7 preceding siblings ...)
2007-07-11 23:04 ` reichelt at gcc dot gnu dot org
@ 2007-07-12 6:20 ` mark at codesourcery dot com
2008-07-04 16:08 ` jsm28 at gcc dot gnu dot org
9 siblings, 0 replies; 11+ messages in thread
From: mark at codesourcery dot com @ 2007-07-12 6:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from mark at codesourcery dot com 2007-07-12 06:20 -------
Subject: Re: [4.1 Regression] ICE in resolve_overloaded_unification
reichelt at gcc dot gnu dot org wrote:
> template<typename> struct A
> {
> A& operator<<(void (*)(A&));
> };
>
> template<typename T> A<T>& operator<<(A<T>&, const A<T>&);
>
> template<typename T> void foo(A<T>&);
>
> void bar()
> {
> A<int>() << (1, foo<int>);
> }
As I (thought I? meant to?) said in the patch submission mail, I don't
think this is valid. The syntactic form of the expression matters for
deduction purposes, and my reading of the standard is that only a
(generalized) identifier is allowed. (It's not very clear, but I didn't
see anything to suggest that your code was valid.) The version of the
EDG front end I had on hand agreed with me. :-) You could certainly ask
on the core reflector, etc.
The issue about printing "(0, ...)" instead of "(1, ...)" is certainly a
bug, but a different one from this.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/32232] [4.1 Regression] ICE in resolve_overloaded_unification
2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
` (8 preceding siblings ...)
2007-07-12 6:20 ` mark at codesourcery dot com
@ 2008-07-04 16:08 ` jsm28 at gcc dot gnu dot org
9 siblings, 0 replies; 11+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2008-07-04 16:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from jsm28 at gcc dot gnu dot org 2008-07-04 16:07 -------
Closing 4.1 branch.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Known to fail|3.4.0 4.1.2 |3.4.0 4.1.2 4.1.3
Resolution| |FIXED
Target Milestone|4.1.3 |4.2.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32232
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2008-07-04 16:08 UTC | newest]
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2007-06-06 10:33 [Bug c++/32232] New: [4.1/4.2/4.3 Regression] ICE in resolve_overloaded_unification jakub at gcc dot gnu dot org
2007-06-06 12:55 ` [Bug c++/32232] " rguenth at gcc dot gnu dot org
2007-06-29 18:40 ` mmitchel at gcc dot gnu dot org
2007-07-06 2:56 ` mmitchel at gcc dot gnu dot org
2007-07-07 7:32 ` mmitchel at gcc dot gnu dot org
2007-07-07 7:36 ` [Bug c++/32232] [4.1/4.2 " mmitchel at gcc dot gnu dot org
2007-07-07 19:16 ` mmitchel at gcc dot gnu dot org
2007-07-07 19:16 ` [Bug c++/32232] [4.1 " mmitchel at gcc dot gnu dot org
2007-07-11 23:04 ` reichelt at gcc dot gnu dot org
2007-07-12 6:20 ` mark at codesourcery dot com
2008-07-04 16:08 ` jsm28 at gcc dot gnu dot org
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