[Bug c++/20157] New: Internal compiler error on invalid code

[Bug c++/20157] New: Internal compiler error on invalid code

[sstrasser at systemhaus-gruppe dot de]

4.0.0 outputs internal compiler error on the following invalid code.
3.3/3.4 silently ignores it.

if the invalid template function specialization is a definition 3.3/3.4
correctly reports it, 4.0.0 still outputs an internal compiler error.

template<typename AT>
struct A{
  template<typename T>
  void function(T);
};

template<>
template<typename ABC,typename DEF>
void A<int>::function(ABC);

-- 
           Summary: Internal compiler error on invalid code
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sstrasser at systemhaus-gruppe dot de
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0 Regression] Internal compiler error on invalid code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-02-23 12:26 -------
Confirmed

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-invalid-code
      Known to fail|                            |4.0.0
   Last reconfirmed|0000-00-00 00:00:00         |2005-02-23 12:26:17
               date|                            |
            Summary|Internal compiler error on  |[4.0 Regression] Internal
                   |invalid code                |compiler error on invalid
                   |                            |code
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0 Regression] Internal compiler error on invalid code

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-02-24 12:27 -------
Hmm. I don't know whether this is really a regression.
We never treated this code correctly. We have an ICE in 2.95.x
and mainline. In 3.0 - 3.4.4 we accept the code where we shouldn't.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
           Keywords|                            |monitored


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0 Regression] Internal compiler error on invalid code

[sstrasser at systemhaus-gruppe dot de]

------- Additional Comments From sstrasser at systemhaus-gruppe dot de  2005-02-24 14:24 -------
(In reply to comment #2) 
 
I think it is a minor regression. 
3.3/3.4 treats the code correctly if the specialization(unlike above) is a 
definition. 4.0 does not.  
 
no regression with exactly this testcase though. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0 Regression] Internal compiler error on invalid code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-02-24 14:28 -------
(In reply to comment #3)
> (In reply to comment #2) 
And any ICE is a regression even if it was changed from accepts invalid code.  There was a discussion 
about this before already.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0/4.1 Regression] Internal compiler error on invalid code

[mmitchel at gcc dot gnu dot org]

-- 
           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=20157

[Bug c++/20157] [4.0/4.1 Regression] Internal compiler error on invalid code

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-03-14 03:54 -------
Subject: Bug 20157

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2005-03-14 03:54:21

Modified files:
	gcc/cp         : ChangeLog pt.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/template: error18.C 

Log message:
	PR c++/20157
	* pt.c (determine_specialization): Reject non-specializations.
	
	PR c++/20157
	* g++.dg/template/error18.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4660&r2=1.4661
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&r1=1.981&r2=1.982
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5159&r2=1.5160
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/error18.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0/4.1 Regression] Internal compiler error on invalid code

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-03-14 03:59 -------
Subject: Bug 20157

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	mmitchel@gcc.gnu.org	2005-03-14 03:58:55

Modified files:
	gcc/cp         : ChangeLog pt.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/template: error18.C 

Log message:
	PR c++/20157
	* pt.c (determine_specialization): Reject non-specializations.
	
	PR c++/20157
	* g++.dg/template/error18.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.4648.2.9&r2=1.4648.2.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.978.2.3&r2=1.978.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.41&r2=1.5084.2.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/error18.C.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157

[Bug c++/20157] [4.0/4.1 Regression] Internal compiler error on invalid code

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2005-03-14 04:02 -------
Fixed in 4.0.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20157