[Bug c++/77947] New: ice with -g and -O2 in strip_naming_typedef

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77947

            Bug ID: 77947
           Summary: ice with -g and -O2 in strip_naming_typedef
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 39788
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39788&action=edit
gzipped C++ source code

The attached code, when compiled by gcc trunk dated 20161012, and compiler
flags -g -O2, does this:

$ ../results/bin/gcc -c -g -O2 bug309.cc
libs/serialization/src/basic_oarchive.cpp: In member function ‘virtual bool
boost::archive::detail::basic_oarchive_impl::find(const
boost::serialization::extended_type_info&) const::bosarg::tracking(unsigned
int) const’:
libs/serialization/src/basic_oarchive.cpp:464:1: internal compiler error:
Segmentation fault
0xc29117 crash_signal
        ../../trunk/gcc/toplev.c:337
0x9008a8 strip_naming_typedef
        ../../trunk/gcc/dwarf2out.c:5095
0x9008a8 get_context_die
        ../../trunk/gcc/dwarf2out.c:23429
0x9005c7 force_decl_die
        ../../trunk/gcc/dwarf2out.c:23448