[Bug c++/47198] New: [4.5/4.6 Regression] [C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code

[Bug c++/47198] New: [4.5/4.6 Regression] [C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47198

           Summary: [4.5/4.6 Regression] [C++0x] ICE: tree check: expected
                    var_decl or function_decl, have template_decl in
                    check_bases_and_members, at cp/class.c:4654 on invalid
                    code
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


------ testcase.C ------
struct S
{
  template < int > sometype foo ();
  S () = default;
};
------------------------

Compiler output:
$ gcc -std=c++0x testcase.C 
testcase.C:3:20: error: 'sometype' does not name a type
testcase.C:1:8: internal compiler error: tree check: expected var_decl or
function_decl, have template_decl in check_bases_and_members, at
cp/class.c:4654
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r168535 - crash
4.5 r168062 - crash
4.4 r168062 - OK

[Bug c++/47198] [4.5/4.6 Regression] [C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47198

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.01.07 02:19:48
                 CC|                            |jason at redhat dot com
   Target Milestone|---                         |4.5.3
     Ever Confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-07 02:19:48 UTC ---
It is caused by revision 154006:

http://gcc.gnu.org/ml/gcc-cvs/2009-11/msg00225.html

[Bug c++/47198] [4.5/4.6 Regression] [C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47198

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-valid-code           |ice-on-invalid-code
           Priority|P3                          |P2
                 CC|                            |jakub at gcc dot gnu.org

[Bug c++/47198] [4.5/4.6 Regression] [C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47198

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-10 15:21:04 UTC ---
Author: jason
Date: Thu Mar 10 15:21:00 2011
New Revision: 170847

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170847
Log:
    PR c++/47198
    * parser.c (cp_parser_single_declaration): Just return if
    cp_parser_parse_and_diagnose_invalid_type_name complained.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/syntax-err1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/parse/error36.C
    trunk/gcc/testsuite/g++.old-deja/g++.pt/ctor2.C
    trunk/gcc/testsuite/g++.old-deja/g++.pt/typename3.C
    trunk/gcc/testsuite/g++.old-deja/g++.pt/typename4.C
    trunk/gcc/testsuite/g++.old-deja/g++.pt/typename6.C

[Bug c++/47198] [4.5 Regression] [C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47198

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |jason at gcc dot gnu.org
         Resolution|                            |FIXED
   Target Milestone|4.5.3                       |4.6.0
            Summary|[4.5/4.6 Regression]        |[4.5 Regression] [C++0x]
                   |[C++0x] ICE: tree check:    |ICE: tree check: expected
                   |expected var_decl or        |var_decl or function_decl,
                   |function_decl, have         |have template_decl in
                   |template_decl in            |check_bases_and_members, at
                   |check_bases_and_members, at |cp/class.c:4654 on invalid
                   |cp/class.c:4654 on invalid  |code
                   |code                        |

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-11 14:35:41 UTC ---
Fixed for 4.6.0.  Not worth backporting fix for ICE after correct error.