[Bug debug/51032] New: ICE in dbxout_type, at dbxout.c:2372

[Bug debug/51032] New: ICE in dbxout_type, at dbxout.c:2372

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

             Bug #: 51032
           Summary: ICE in dbxout_type, at dbxout.c:2372
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ro@gcc.gnu.org
                CC: jakub@gcc.gnu.org
              Host: alpha-dec-osf5.1b, i386-pc-solaris2.11
            Target: alpha-dec-osf5.1b, i386-pc-solaris2.11
             Build: alpha-dec-osf5.1b, i386-pc-solaris2.11


Between r180960 and r181158 Tru64 UNIX bootstrap got broken compiling the
stage1
libstdc++.  The bug can be broken down to

$ ./cc1plus -fpreprocessed stdc++.ii -quiet -mieee -g -O2 -std=gnu++11 -o
stdc++.s
In file included from
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/alloc_traits.h:35:0,
                 from
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/ext/alloc_traits.h:35,
                 from
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/stl_construct.h:63,
                 from
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/stl_tempbuf.h:62,
                 from
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/stl_algo.h:64,
                 from
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/algorithm:63,
                 from
/vol/gcc/src/hg/trunk/local/libstdc++-v3/include/precompiled/stdc++.h:65:
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/ptr_traits.h:
In instantiation of 'struct std::pointer_traits<double*>':
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/alloc_traits.h:106:2:
  required from 'struct std::allocator_traits<std::allocator<double> >'
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/ext/alloc_traits.h:90:10:
  required from 'struct __gnu_cxx::__alloc_traits<std::allocator<double> >'
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/stl_vector.h:76:28:
  required from 'struct std::_Vector_base<double, std::allocator<double> >'
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/stl_vector.h:208:11:
  required from 'class std::vector<double>'
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/random.h:4716:22:
  required from here
/var/gcc/regression/trunk/5.1b-gcc/build/alpha-dec-osf5.1b/libstdc++-v3/include/bits/ptr_traits.h:158:12:
internal compiler error: in dbxout_type, at dbxout.c:2372

Since gdb chokes on cc1plus on osf and this seemed to be a stabs issue, I tried
a corresponding invocation (from the -save-temps output of generating 
i386-pc-solaris2.11/bits/stdc++.h.gch/O2ggnu++0x.gch) on Solaris 11/x86, but
with -gstabs instead of the default, DWARF-2.  I get the same error:

$ ./cc1plus -fpreprocessed stdc++.ii -quiet -gstabs+ -std=gnu++11 -o stdc++.s 
[...].
/var/gcc/regression/trunk/11-gcc-gas/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/ptr_traits.h:158:12:
internal compiler error: in dbxout_type, at dbxout.c:2372

In gdb, I find that dbxout_type cannot deal with

 <template_type_parm fb9fb120 _Up type_0 type_6 VOID
    align 8 symtab 2070 alias set -1 canonical type fe94a300
   index 0 level 1 orig_level 2
    pointer_to_this <pointer_type fb9fb180> chain <type_decl fb9fc000 _Up>>

[Bug debug/51032] ICE in dbxout_type, at dbxout.c:2372

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.7.0

[Bug debug/51032] ICE in dbxout_type, at dbxout.c:2372

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> 2011-11-08 15:55:19 UTC ---
Created attachment 25752
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25752
preprocessed input

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #2 from David Edelsohn <dje at gcc dot gnu.org> 2011-11-08 15:58:59 UTC ---
I see the exact same issue on AIX.

 <template_type_parm 710936c0 _Up type_0 type_6 VOID
    align 8 symtab 2114 alias set -1 canonical type 701097e0
   index 0 level 1 orig_level 2
    pointer_to_this <pointer_type 71093720> chain <type_decl 710940e0 _Up>>

In file included from
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/alloc_traits.h:35:0,
                 from
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/ext/alloc_traits.h:35,
                 from
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/stl_construct.h:63,
                 from
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/stl_tempbuf.h:62,
                 from
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/stl_algo.h:64,
                 from
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/algorithm:63,
                 from /farm/dje/src/src/libstdc++-v3/src/debug.cc:31:
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/ptr_traits.h: In
instantiation of 'struct std::pointer_traits<double*>':
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/alloc_traits.h:106:2:
  required from 'struct std::allocator_traits<std::allocator<double> >'
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/ext/alloc_traits.h:90:10:
  required from 'struct __gnu_cxx::__alloc_traits<std::allocator<double> >'
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/stl_vector.h:76:28: 
 required from 'struct std::_Vector_base<double, std::allocator<double> >'
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/stl_vector.h:208:11:
  required from 'class std::vector<double>'
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/random.h:4716:22:  
required from here
/tmp/Aldy/powerpc-ibm-aix5.3.0.0/libstdc++-v3/include/bits/ptr_traits.h:158:12:
internal compiler error: in dbxout_type, at dbxout.c:2373

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> 2011-11-08 16:01:24 UTC ---
Created attachment 25753
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25753
preprocessed libstdc++/src/debug.cc

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-11-08
                 CC|                            |dje at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #4 from David Edelsohn <dje at gcc dot gnu.org> 2011-11-08 16:02:10 UTC ---
Confirmed.

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |redi at gcc dot gnu.org

--- Comment #5 from Rainer Orth <ro at gcc dot gnu.org> 2011-11-08 17:13:03 UTC ---
A quick reghunt on i386-pc-solaris2.11 and rebuilding debug.cc with -gstabs 
reveals that this patch

2011-11-08  Jonathan Wakely  <jwakely.gcc@gmail.com>

       * include/bits/ptr_traits.h (__rebind): Replace with...
       (rebind): Implement using alias-declaration.
       * include/ext/pointer.h (__rebind): Replace with...
       (rebind): Implement using alias-declaration.
       * include/bits/alloc_traits.h (__rebind_alloc, __rebind_traits):
       Replace with...
       (rebind_alloc, rebind_traits): Implement using alias-declaration.
       * include/ext/alloc_traits.h (rebind): Use rebind_alloc instead of
       __rebind_alloc.
       * include/std/scoped_allocator (rebind): Likewise.

triggered it.  Obviously, that cannot be the real culprit, the actual bug is
elsewhere.

  Rainer

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dodji at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

Dodji Seketeli <dodji at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[sje at cup dot hp.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

Steve Ellcey <sje at cup dot hp.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|alpha-dec-osf5.1b,          |alpha-dec-osf5.1b,
                   |i386-pc-solaris2.11         |i386-pc-solaris2.11,
                   |                            |hppa2.0w-hp-hpux11.11
                 CC|                            |sje at cup dot hp.com
               Host|alpha-dec-osf5.1b,          |alpha-dec-osf5.1b,
                   |i386-pc-solaris2.11         |i386-pc-solaris2.11,
                   |                            |hppa2.0w-hp-hpux11.11
              Build|alpha-dec-osf5.1b,          |alpha-dec-osf5.1b,
                   |i386-pc-solaris2.11         |i386-pc-solaris2.11,
                   |                            |hppa2.0w-hp-hpux11.11

--- Comment #6 from Steve Ellcey <sje at cup dot hp.com> 2011-11-08 17:33:22 UTC ---
I see this on hppa2.0w-hp-hpux11.11 as well.

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dodji at seketeli dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #7 from dodji at seketeli dot org <dodji at seketeli dot org> 2011-11-08 18:57:50 UTC ---
A smaller reproducer:

$ cat -n test.cc
     1    template <class C>
     2    struct A {
     3        template<class U> using B = U*;
     4        int a;
     5    };
     6    
     7    A<int> a;

./cc1plus ./test.cc  -quiet -gstabs+ -std=gnu++11
test.cc: In instantiation of 'struct A<int>':
test.cc:7:8:   required from here
test.cc:2:8: internal compiler error: in dbxout_type, at dbxout.c:2372

Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dodji at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #8 from Dodji Seketeli <dodji at gcc dot gnu.org> 2011-11-08 20:19:28 UTC ---
Created attachment 25757
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25757
Candidate fix

I am testing this patch.  If you could test it on your system, that in the mean
time, it could help.

Sorry for the inconvenience.

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dodji at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #9 from Dodji Seketeli <dodji at gcc dot gnu.org> 2011-11-08 21:40:03 UTC ---
A candidate fix was posted to
http://gcc.gnu.org/ml/gcc-patches/2011-11/msg01249.html

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[sje at cup dot hp.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #10 from Steve Ellcey <sje at cup dot hp.com> 2011-11-08 23:08:37 UTC ---
I did a successful bootstrap on hppa2.0w-hp-hpux11.11 with the patch.  I am
still running the test suite.

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #11 from David Edelsohn <dje at gcc dot gnu.org> 2011-11-09 01:23:05 UTC ---
The patch allows bootstrap to proceed past the previous failure point.

Thanks!

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dodji at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

--- Comment #12 from Dodji Seketeli <dodji at gcc dot gnu.org> 2011-11-09 07:51:17 UTC ---
Author: dodji
Date: Wed Nov  9 07:51:12 2011
New Revision: 181193

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181193
Log:
PR debug/51032 - ICE in dbxout_type, at dbxout.c:2372

gcc/cp/

    * decl2.c (check_member_template): Accept alias templates and ...
    * parser.c (cp_parser_alias_declaration): ... use it here.

gcc/testsuite/

    * g++.dg/cpp0x/alias-decl-debug-0.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/alias-decl-debug-0.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl2.c
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog

[Bug debug/51032] [4.7 Regression] ICE in dbxout_type, at dbxout.c:2372

[dodji at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51032

Dodji Seketeli <dodji at gcc dot gnu.org> changed:

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

--- Comment #13 from Dodji Seketeli <dodji at gcc dot gnu.org> 2011-11-09 08:09:27 UTC ---
Should be fixed in trunk now.