[Bug c++/19149] New: [4.0 Regression] seg fault on invalid code

[Bug c++/19149] New: [4.0 Regression] seg fault on invalid code

[pinskia at gcc dot gnu dot org]

struct QChar {
    QChar( char c );
    QChar( const QChar& c );
    static const ;
} ;

: Search converges between 2004-06-24-trunk (#471) and 2004-06-26-trunk (#472).

-- 
           Summary: [4.0 Regression] seg fault on invalid code
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: minor
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149

[Bug c++/19149] [4.0 Regression] seg fault on invalid code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-24 18:02 -------
I should note I found this while reducing PR 19148.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149

[Bug c++/19149] [4.0 Regression] seg fault on invalid code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-24 18:03 -------
A little further reduced:
struct QChar {
    static const ;
} ;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149

[Bug c++/19149] [4.0 Regression] seg fault on invalid code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-24 18:25 -------
Here is the backtrace:
#0  0x0003ddc0 in check_tag_decl (declspecs=0xbffff5e0) at /Users/pinskia/src/local/gcc/gcc/cp/
decl.c:3517
#1  0x001407e8 in cp_parser_member_declaration (parser=0x428a2548) at /Users/pinskia/src/local/
gcc/gcc/cp/parser.c:12962
#2  0x0014063c in cp_parser_member_specification_opt (parser=0x428a2548) at /Users/pinskia/src/
local/gcc/gcc/cp/parser.c:12851
#3  0x0013ee3c in cp_parser_class_specifier (parser=0x428a2548) at /Users/pinskia/src/local/gcc/
gcc/cp/parser.c:12310
#4  0x001392dc in cp_parser_type_specifier (parser=0x428a2548, 
flags=CP_PARSER_FLAGS_OPTIONAL, decl_specs=0xbffff8a0, is_declaration=1 '\001', 
declares_class_or_enum=0xbffff838, is_cv_qualifier=0xbffff83c "") at /Users/pinskia/src/local/gcc/
gcc/cp/parser.c:9158
#5  0x00135774 in cp_parser_decl_specifier_seq (parser=0x428a2548, 
flags=CP_PARSER_FLAGS_OPTIONAL, decl_specs=0xbffff8a0, declares_class_or_enum=0xbffff8f0) at /
Users/pinskia/src/local/gcc/gcc/cp/parser.c:7154
#6  0x00135170 in cp_parser_simple_declaration (parser=0x428a2548, 
function_definition_allowed_p=1 '\001') at /Users/pinskia/src/local/gcc/gcc/cp/parser.c:6850
#7  0x00135114 in cp_parser_block_declaration (parser=0x428a2548, statement_p=0 '\0') at /Users/
pinskia/src/local/gcc/gcc/cp/parser.c:6811
#8  0x00134efc in cp_parser_declaration (parser=0x428a2548) at /Users/pinskia/src/local/gcc/gcc/
cp/parser.c:6728
#9  0x00134b58 in cp_parser_declaration_seq_opt (parser=0x428a2548) at /Users/pinskia/src/local/
gcc/gcc/cp/parser.c:6632
#10 0x0012dc10 in cp_parser_translation_unit (parser=0x428a2548) at /Users/pinskia/src/local/gcc/
gcc/cp/parser.c:2556

(gdb) p declspecs->type
$2 = 0x0



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-12-24 18:25:09
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149

[Bug c++/19149] [4.0 Regression] seg fault on invalid code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-24 18:33 -------
I think this was caused by:
2004-06-23  Mark Mitchell  <mark@codesourcery.com>

        * Make-lang.in (cp/lex.o): Do not depend on cp/lex.h.
        (cp/decl.o): Likewise.
        (cp/decl2.o): Likewise.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mmitchel at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149

[Bug c++/19149] [4.0 Regression] seg fault 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=19149

[Bug c++/19149] [4.0 Regression] seg fault on invalid code

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-27 19:03 -------
Subject: Bug 19149

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2004-12-27 19:03:19

Modified files:
	gcc/testsuite  : ChangeLog 
	gcc/cp         : ChangeLog decl.c 
Added files:
	gcc/testsuite/g++.dg/parse: error23.C 

Log message:
	PR c++/19149
	* decl.c (check_tag_decl): Robustify.
	
	PR c++/19149
	* g++.dg/parse/error23.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4824&r2=1.4825
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/parse/error23.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4559&r2=1.4560
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&r1=1.1346&r2=1.1347



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149

[Bug c++/19149] [4.0 Regression] seg fault on invalid code

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-12-27 19:04 -------
Fixed in GCC 4.0.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19149