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* [Bug c++/18758] New: [4.0 regression] ICE redeclaring struct as template
@ 2004-12-01 15:46 reichelt at gcc dot gnu dot org
  2004-12-01 15:50 ` [Bug c++/18758] " pinskia at gcc dot gnu dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2004-12-01 15:46 UTC (permalink / raw)
  To: gcc-bugs

The following invalid code snippet causes an ICE on mainline:

===============================
namespace N
{
    struct A;
}

template<int> struct N::A {};
===============================

  bug.cc:6: error: 'template<int <anonymous> > struct N::A' redeclared as
different kind of symbol
  bug.cc:3: error: previous declaration of 'struct N::A'
  bug.cc:6: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in cp_parser_class_specifier, at cp/parser.c:12298
  Please submit a full bug report, [etc.]

The regression was introduced here:
: Search converges between 2004-02-01-trunk (#445) and 2004-03-01-trunk (#446).

Looks like we don't handle cp_parser_class_head returning error_mark_node
in cp_parser_class_specifier.

Should we always return NULL_TREE if cp_parser_class_head fails?
Or should we check for error_mark_node in cp_parser_class_specifier
as well? (Since both cases will probably handled in the same code path,
the former makes more sense to me.)

-- 
           Summary: [4.0 regression] ICE redeclaring struct as template
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18758


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/18758] [4.0 regression] ICE redeclaring struct as template
  2004-12-01 15:46 [Bug c++/18758] New: [4.0 regression] ICE redeclaring struct as template reichelt at gcc dot gnu dot org
@ 2004-12-01 15:50 ` pinskia at gcc dot gnu dot org
  2004-12-02 10:57 ` nathan at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-01 15:50 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-01 15:49 -------
Confirmed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-12-01 15:49:51
               date|                            |
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18758


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/18758] [4.0 regression] ICE redeclaring struct as template
  2004-12-01 15:46 [Bug c++/18758] New: [4.0 regression] ICE redeclaring struct as template reichelt at gcc dot gnu dot org
  2004-12-01 15:50 ` [Bug c++/18758] " pinskia at gcc dot gnu dot org
@ 2004-12-02 10:57 ` nathan at gcc dot gnu dot org
  2004-12-02 13:29 ` nathan at gcc dot gnu dot org
  2004-12-02 13:35 ` cvs-commit at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: nathan at gcc dot gnu dot org @ 2004-12-02 10:57 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |nathan at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18758


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/18758] [4.0 regression] ICE redeclaring struct as template
  2004-12-01 15:46 [Bug c++/18758] New: [4.0 regression] ICE redeclaring struct as template reichelt at gcc dot gnu dot org
  2004-12-01 15:50 ` [Bug c++/18758] " pinskia at gcc dot gnu dot org
  2004-12-02 10:57 ` nathan at gcc dot gnu dot org
@ 2004-12-02 13:29 ` nathan at gcc dot gnu dot org
  2004-12-02 13:35 ` cvs-commit at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: nathan at gcc dot gnu dot org @ 2004-12-02 13:29 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From nathan at gcc dot gnu dot org  2004-12-02 13:29 -------
2004-12-02  Nathan Sidwell  <nathan@codesourcery.com>

	PR c++/18758
	* parser.c (cp_parser_class_head): Return NULL_TREE when
	push_template_decl fails.  Update comment.


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18758


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/18758] [4.0 regression] ICE redeclaring struct as template
  2004-12-01 15:46 [Bug c++/18758] New: [4.0 regression] ICE redeclaring struct as template reichelt at gcc dot gnu dot org
                   ` (2 preceding siblings ...)
  2004-12-02 13:29 ` nathan at gcc dot gnu dot org
@ 2004-12-02 13:35 ` cvs-commit at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-12-02 13:35 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-02 13:35 -------
Subject: Bug 18758

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	nathan@gcc.gnu.org	2004-12-02 13:35:16

Modified files:
	gcc/cp         : ChangeLog parser.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/parse: crash21.C 

Log message:
	cp:
	PR c++/18758
	* parser.c (cp_parser_class_head): Return NULL_TREE when
	push_template_decl fails.  Update comment.
	testsuite:
	PR 18758
	* g++.dg/parse/crash21.C: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4511&r2=1.4512
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&r1=1.287&r2=1.288
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4707&r2=1.4708
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/parse/crash21.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18758


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2004-12-02 13:35 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-12-01 15:46 [Bug c++/18758] New: [4.0 regression] ICE redeclaring struct as template reichelt at gcc dot gnu dot org
2004-12-01 15:50 ` [Bug c++/18758] " pinskia at gcc dot gnu dot org
2004-12-02 10:57 ` nathan at gcc dot gnu dot org
2004-12-02 13:29 ` nathan at gcc dot gnu dot org
2004-12-02 13:35 ` cvs-commit at gcc dot gnu dot org

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