[Bug c++/21383] New: Crash when finding &a_templated_func<>

[Bug c++/21383] New: Crash when finding &a_templated_func<>

[mahall at ncsa dot uiuc dot edu]

Crash when finding &a_templated_func<>. I realize that that's not valid
code, so I expected I diagnostic, but I got an ICE instead.

Here's the command line:

panacea> g++ -v -save-temps /tmp/gccbug.cc 
Reading specs from /usr/local/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3.4.3/specs
Configured with: ../gcc-3.4.3/configure --prefix=/usr/local/gcc-3.4.3 --enable-l
anguages=c,c++,f77
Thread model: posix
gcc version 3.4.3
 /usr/local/gcc-3.4.3/libexec/gcc/i686-pc-linux-gnu/3.4.3/cc1plus -E -quiet -v -
D_GNU_SOURCE /tmp/gccbug.cc -mtune=pentiumpro -o gccbug.ii
ignoring nonexistent directory "/usr/local/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3
.4.3/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3.4.3/../../../../include/c++/3.
4.3
 /usr/local/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3.4.3/../../../../include/c++/3.
4.3/i686-pc-linux-gnu
 /usr/local/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3.4.3/../../../../include/c++/3.
4.3/backward
 /usr/local/include
 /usr/local/gcc-3.4.3/include
 /usr/local/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3.4.3/include
 /usr/include
End of search list.
 /usr/local/gcc-3.4.3/libexec/gcc/i686-pc-linux-gnu/3.4.3/cc1plus -fpreprocessed
 gccbug.ii -quiet -dumpbase gccbug.cc -mtune=pentiumpro -auxbase gccbug -version
 -o gccbug.s
GNU C++ version 3.4.3 (i686-pc-linux-gnu)
        compiled by GNU C version 3.2.3.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
/tmp/gccbug.cc: In function `int main()':
/tmp/gccbug.cc:13: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


And here is the preprocessed source code:

# 1 "/tmp/gccbug.cc"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "/tmp/gccbug.cc"
template <class T>
void dummy(T& t)
{}

void anyfunc(int x)
{}

int main()
{
   anyfunc(&dummy<>);
}

-- 
           Summary: Crash when finding &a_templated_func<>
           Product: gcc
           Version: 3.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mahall at ncsa dot uiuc dot edu
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] Crash when finding &a_templated_func<>

[mahall at ncsa dot uiuc dot edu]

------- Additional Comments From mahall at ncsa dot uiuc dot edu  2005-05-04 16:11 -------
Oh - the address_of operator is not necessary - the crash occurs if we use just
anyfunc(dummy<>);

-matt

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-04 17:02 -------
Confirmed, here is the backtrace:
#0  arg_assoc_args (k=0xbff447d4, args=0xb7c68f30) at /home/peshtigo/pinskia/src/gnu/gcc/src/
gcc/cp/name-lookup.c:4434
#1  0x08151dfa in lookup_arg_dependent (name=0xb7c8b23c, fns=0xb7c8c654, args=0xb7c68f30)
    at /home/peshtigo/pinskia/src/gnu/gcc/src/gcc/cp/name-lookup.c:4484
#2  0x08131d50 in perform_koenig_lookup (fn=0xff, args=0xb7c68f30)
    at /home/peshtigo/pinskia/src/gnu/gcc/src/gcc/cp/semantics.c:1711
#3  0x080ef88e in cp_parser_unary_expression (parser=0xb7c8b2a4, address_p=0 '\0', cast_p=0 '\0')
    at /home/peshtigo/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:4108
#4  0x080f01f2 in cp_parser_assignment_expression (parser=0xb7c8b2a4, cast_p=0 '\0')
    at /home/peshtigo/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:5413
#5  0x080f1999 in cp_parser_expression (parser=0xb7c8b2a4, cast_p=Variable "cast_p" is not 
available.
)
    at /home/peshtigo/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:5717

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-invalid-code
      Known to fail|                            |3.4.0 4.0.0 4.1.0
      Known to work|                            |3.3.3
   Last reconfirmed|0000-00-00 00:00:00         |2005-05-04 17:02:56
               date|                            |
            Summary|Crash when finding          |[3.4/4.0/4.1 Regression]
                   |&a_templated_func<>         |Crash when finding
                   |                            |&a_templated_func<>
   Target Milestone|---                         |3.4.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.4                       |3.4.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-01 00:20 -------
: Search converges between 2003-08-10-trunk (#319) and 2003-08-11-trunk (#320).

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-07-22 21:12 -------
Moving to 4.0.2 pre Mark.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.5                       |4.0.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.0.2                       |4.0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[janis187 at us dot ibm dot com]

------- Additional Comments From janis187 at us dot ibm dot com  2005-09-28 16:28 -------
A regression hunt identified this patch from nathan:

  http://gcc.gnu.org/ml/gcc-cvs/2003-08/msg00349.html

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[cvs-commit at gcc dot gnu dot org]

------- Comment #7 from cvs-commit at gcc dot gnu dot org  2005-10-18 13:49 -------
Subject: Bug 21383

CVSROOT:        /cvs/gcc
Module name:    gcc
Branch:         gcc-4_0-branch
Changes by:     nathan@gcc.gnu.org      2005-10-18 13:49:17

Modified files:
        gcc/cp         : ChangeLog name-lookup.c 
        gcc/testsuite  : ChangeLog 
Added files:
        gcc/testsuite/g++.dg/overload: koenig2.C 

Log message:
        cp:
        PR c++/21383
        * name-lookup.c (arg_assoc): Template args can be null in a
        template-id-expr.
        testsuite:
        PR c++/21383
        * g++.dg/overload/koenig2.C: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.4648.2.143&r2=1.4648.2.144
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/name-lookup.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.109.4.10&r2=1.109.4.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.467&r2=1.5084.2.468
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/overload/koenig2.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=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[cvs-commit at gcc dot gnu dot org]

------- Comment #6 from cvs-commit at gcc dot gnu dot org  2005-10-18 13:45 -------
Subject: Bug 21383

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     nathan@gcc.gnu.org      2005-10-18 13:45:23

Modified files:
        gcc/cp         : ChangeLog name-lookup.c 
        gcc/testsuite  : ChangeLog 
Added files:
        gcc/testsuite/g++.dg/overload: koenig2.C 

Log message:
        cp:
        PR c++/21383
        * name-lookup.c (arg_assoc): Template args can be null in a
        template-id-expr.
        testsuite:
        PR c++/21383
        * g++.dg/overload/koenig2.C: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4945&r2=1.4946
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/name-lookup.c.diff?cvsroot=gcc&r1=1.143&r2=1.144
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.6208&r2=1.6209
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/overload/koenig2.C.diff?cvsroot=gcc&r1=NONE&r2=1.1


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383

[Bug c++/21383] [3.4/4.0/4.1 Regression] Crash when finding &a_templated_func<>

[nathan at gcc dot gnu dot org]

-- 

nathan at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |nathan at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2005-09-04 18:20:26         |2005-10-14 16:50:13
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21383