[Bug c++/63621] [5 Regression] ICE: error: Both section and comdat group is set

["trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63621

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|i686-pc-cygwin              |
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-10-22
          Component|target                      |c++
                 CC|                            |trippels at gcc dot gnu.org
               Host|i686-pc-cygwin              |
     Ever confirmed|0                           |1
            Summary|[ICE] symtab_node::verify   |[5 Regression] ICE: error:
                   |failed                      |Both section and comdat
                   |                            |group is set
   Target Milestone|---                         |5.0
              Build|i686-pc-cygwin              |

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 tmp % cat fhandler_socket.ii
class A
{
  int m_fn1 (void *);
  int m_fn2 (bool);
};
inline int
A::m_fn2 (bool)
{
  static __attribute__ ((section (""))) int a;
  if (a)
    ;
  return 0;
}

int
A::m_fn1 (void *)
{
  return m_fn2 (0);
}

markus@x4 tmp % g++ -c fhandler_socket.ii
fhandler_socket.ii:19:1: error: Both section and comdat group is set
 }
 ^
_ZZN1A5m_fn2EbE1a/0 (int a) @0x7f1c0f6e1380
  Type: variable definition analyzed
  Visibility: public weak comdat comdat_group:_ZZN1A5m_fn2EbE1a one_only
section:
  References: 
  Referring: _ZN1A5m_fn2Eb/1 (read)
  Availability: not-ready
  Varpool flags:
fhandler_socket.ii:19:1: internal compiler error: symtab_node::verify failed
0x8905ac symtab_node::verify()
        ../../gcc/gcc/symtab.c:1145
0x890e47 symtab_node::verify_symtab_nodes()
        ../../gcc/gcc/symtab.c:1160
0x8a0bfd symbol_table::compile()
        ../../gcc/gcc/cgraphunit.c:2118
0x8a2b07 symbol_table::finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.c:2290
0x68498a cp_write_global_declarations()
        ../../gcc/gcc/cp/decl2.c:4666
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