[Bug c++/16671] New: [3.5 regression] ICE in tsubst_decl

[Bug c++/16671] New: [3.5 regression] ICE in tsubst_decl

[bangerth at dealii dot org]

There is a recent ICE in tsubst_decl for the attached file that triggers all over the 
place in my library: 
 
deal.II/deal.II> c++ -c x.ii 
x.ii: In instantiation of `internals::SparseMatrixIterators::Accessor<float, false>::Reference': 
x.ii:44680:   instantiated from `void ConstraintMatrix::condense(SparseMatrix<number>&) 
const [with number = float]' 
x.ii:48639:   instantiated from here 
x.ii:36960: internal compiler error: in tsubst_decl, at cp/pt.c:6081 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
 
I'll try to reduce the testcase somewhat soon. 
 
W.

-- 
           Summary: [3.5 regression] ICE in tsubst_decl
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bangerth at dealii dot org
                CC: gcc-bugs at gcc dot gnu dot org,nathan at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-07-22 16:10 -------
I can't attach something today due to a misconfiguration on my side. But here's 
a reduced testcase: 
-------------------------- 
template <typename T> struct Accessor { 
    struct Reference { 
	void operator = (int); 
    }; 
}; 
 
template <typename T> 
void Accessor<T>::Reference::operator = (int) {} 
 
template class Accessor<float>::Reference; 
---------------------------- 
deal.II/deal.II> c++ -c x.cc 
x.cc: In instantiation of `Accessor<float>::Reference': 
x.cc:10:   instantiated from here 
x.cc:2: internal compiler error: in tsubst_decl, at cp/pt.c:6081 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
 
W. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-07-22 17:00 -------
Almost surely caused by:
http://gcc.gnu.org/ml/gcc-patches/2004-07/msg01572.html

Mark, can you have a look at this?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |mmitchel at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|                            |1
      Known to fail|                            |3.5.0
      Known to work|                            |3.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2004-07-22 17:00:31
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[nathan at codesourcery dot com]

------- Additional Comments From nathan at codesourcery dot com  2004-07-22 17:06 -------
Subject: Re:  [3.5 regression] ICE in tsubst_decl

bangerth at dealii dot org wrote:
> ------- Additional Comments From bangerth at dealii dot org  2004-07-22 16:10 -------
> I can't attach something today due to a misconfiguration on my side. But here's 
> a reduced testcase: 
> -------------------------- 
> template <typename T> struct Accessor { 
>     struct Reference { 
> 	void operator = (int); 
>     }; 
> }; 
>  
> template <typename T> 
> void Accessor<T>::Reference::operator = (int) {} 
>  
> template class Accessor<float>::Reference; 
this is already fixed. I think it's the one that I did this morning.
Can you confirm with an updated tree?

nathan


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[nathan at gcc dot gnu dot org]

------- Additional Comments From nathan at gcc dot gnu dot org  2004-07-22 17:08 -------
probably mine, as it appears fixed already. Please close if confirmed, or
add a new testcase if not.  thanks

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|mmitchel at gcc dot gnu dot |nathan at gcc dot gnu dot
                   |org                         |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[bangerth at ices dot utexas dot edu]

------- Additional Comments From bangerth at ices dot utexas dot edu  2004-07-22 18:25 -------
Subject: Re:  [3.5 regression] ICE in tsubst_decl

> probably mine, as it appears fixed already. Please close if
> confirmed, or add a new testcase if not.  thanks

It'll show up in my builds next night. So let's just wait until tomorrow to 
see whether it is really fixed.

W.

-------------------------------------------------------------------------
Wolfgang Bangerth              email:            bangerth@ices.utexas.edu
                               www: http://www.ices.utexas.edu/~bangerth/



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |WAITING
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-07-23 13:48 -------
Alright, seems fixed now. Have another 3 distinct ICEs this night, though :-( 
 
Thanks everyone for fixing it. Nathan, did you have a testcase for this 
problem when you fixed it? 
 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671

[Bug c++/16671] [3.5 regression] ICE in tsubst_decl

[nathan at gcc dot gnu dot org]

------- Additional Comments From nathan at gcc dot gnu dot org  2004-07-23 14:19 -------
yes thanks, I distilled one from Gerald's example

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16671