[Bug c++/41570] New: g++ 4.5 ICE with -g and c++0x variadic templates

[Bug c++/41570] New: g++ 4.5 ICE with -g and c++0x variadic templates

[ciaran dot mccreesh at googlemail dot com]

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g++ (Gentoo SVN) 4.5.0-pre9999 built 20091004 (experimental) rev. 152437

$ g++ -c -std=gnu++0x a.cc && echo ok
ok

$ g++ -c -std=gnu++0x a.cc -g && echo ok
a.cc: In instantiation of ‘M<C>’:
a.cc:22:44:   instantiated from ‘M<B, C>’
a.cc:22:44:   instantiated from ‘M<A, B, C>’
a.cc:37:20:   instantiated from here
a.cc:21:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugs.gentoo.org/> for instructions.

$ cat a.cc
template <typename...>
struct M;

template <typename I_, typename T_>
struct E
{
};

struct T
{
};

template <>
struct M<>
{
    typedef T Type;
};

template <typename H_, typename... T_>
struct M<H_, T_...>
{
    typedef E<H_, typename M<T_...>::Type> Type;
};

struct A
{
};

struct R :
    M<A>::Type
{
};


-- 
           Summary: g++ 4.5 ICE with -g and c++0x variadic templates
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ciaran dot mccreesh at googlemail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [c++0x] g++ 4.5 ICE with -g and variadic templates

[paolo dot carlini at oracle dot com]

-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-04 18:24:39
               date|                            |
            Summary|g++ 4.5 ICE with -g and     |[c++0x] g++ 4.5 ICE with -g
                   |c++0x variadic templates    |and variadic templates


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [4.5 Regression] [c++0x] ICE with -g and variadic templates

[ciaran dot mccreesh at googlemail dot com]

------- Comment #1 from ciaran dot mccreesh at googlemail dot com  2009-10-04 22:55 -------
This was introduced in svn://gcc.gnu.org/svn/gcc/trunk@152043 for bug 41266.
The DECL_NAME (parm_pack) assertion doesn't hold if the pack's empty.

This leads to a much simpler test case:

template <typename...>
struct M
{
};

struct R :
    M<>
{
};


-- 

ciaran dot mccreesh at googlemail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [4.5 Regression] [c++0x] ICE with -g and variadic templates

[dodji at gcc dot gnu dot org]

-- 

dodji at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |dodji at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-10-04 18:24:39         |2009-10-08 17:54:20
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [4.5 Regression] [c++0x] ICE with -g and variadic templates

[dodji at gcc dot gnu dot org]

------- Comment #2 from dodji at gcc dot gnu dot org  2009-10-11 21:51 -------
Patch sent to http://gcc.gnu.org/ml/gcc-patches/2009-10/msg00720.html .


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [4.5 Regression] [c++0x] ICE with -g and variadic templates

[dodji at gcc dot gnu dot org]

------- Comment #3 from dodji at gcc dot gnu dot org  2009-10-12 11:57 -------
Subject: Bug 41570

Author: dodji
Date: Mon Oct 12 11:57:30 2009
New Revision: 152663

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152663
Log:
Candidate fix for PR c++/41570

gcc/ChangeLog:
        PR c++/41570
        * gcc/dwarf2out.c (template_parameter_pack_die,
        gen_formal_parameter_pack_die): Use add_name_and_src_coords_attributes.

gcc/testsuite/ChangeLog:
        PR c++/41570
        * gcc/testsuite/g++.dg/debug/dwarf2/template-params-7.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/debug/dwarf2/template-params-7.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [4.5 Regression] [c++0x] ICE with -g and variadic templates

[dodji at gcc dot gnu dot org]

------- Comment #4 from dodji at gcc dot gnu dot org  2009-10-12 12:16 -------
Fixed in 4.5.


-- 

dodji at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570

[Bug c++/41570] [4.5 Regression] [c++0x] ICE with -g and variadic templates

[hjl at gcc dot gnu dot org]

------- Comment #5 from hjl at gcc dot gnu dot org  2009-10-15 21:18 -------
Subject: Bug 41570

Author: hjl
Date: Thu Oct 15 21:17:36 2009
New Revision: 152870

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152870
Log:
2009-10-15  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline:
        2009-10-13  Martin Jambor  <mjambor@suse.cz>

        * gcc.c-torture/compile/pr41661.c: New test.

        2009-10-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/41683
        * gfortran.dg/fmt_error_9.f: Add check for repeat count after P.

        2009-10-12  Dodji Seketeli  <dodji@redhat.com>

        PR c++/41570
        * g++.dg/debug/dwarf2/template-params-7.C: New test.

        2009-10-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/41555
        * gcc.dg/torture/pr41555.c: New testcase.

        2009-10-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/41634
        * gcc.c-torture/compile/pr41634.c: New testcase.

        2009-10-08  Michael Matz  <matz@suse.de>

        PR middle-end/41573
        * gcc.dg/pr41573.c: New test.

        2009-10-07  Joseph Myers  <joseph@codesourcery.com>

        PR c/41182
        * gcc.c-torture/compile/pr41182-1.c: New.

Added:
   
branches/gcc-4_4-branch/gcc/testsuite/g++.dg/debug/dwarf2/template-params-7.C
      - copied unchanged from r152869,
trunk/gcc/testsuite/g++.dg/debug/dwarf2/template-params-7.C
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr41182-1.c
      - copied unchanged from r152869,
trunk/gcc/testsuite/gcc.c-torture/compile/pr41182-1.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr41634.c
      - copied unchanged from r152869,
trunk/gcc/testsuite/gcc.c-torture/compile/pr41634.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr41661.c
      - copied unchanged from r152868,
trunk/gcc/testsuite/gcc.c-torture/compile/pr41661.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr41573.c
      - copied unchanged from r152869, trunk/gcc/testsuite/gcc.dg/pr41573.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/pr41555.c
      - copied unchanged from r152869,
trunk/gcc/testsuite/gcc.dg/torture/pr41555.c
    branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/fmt_error_9.f
      - copied unchanged from r152869,
trunk/gcc/testsuite/gfortran.dg/fmt_error_9.f
Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41570