[Bug debug/69785] c++filt can't demangle string or compiler produce wrong mangled string

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69785

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-02-15
                 CC|                            |trippels at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #2)
> (In reply to Nikolay Piskun from comlibibertyment #1)
> > I can send a test program, but its rather long.
> 
> Can gdb demangle it?

gdb uses the same libiberty demangler as the rest of the GNU tools.
The reporter said that c++filt can't demangle it, so of course gdb cannot
demangle it either.

And neither can Ian's go C++ demangler: 
https://github.com/ianlancetaylor/demangle

So a test program would be welcome.