[Bug c++/67595] New: concepts code causes segfault

[ryan.burn at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67595

            Bug ID: 67595
           Summary: concepts code causes segfault
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ryan.burn at gmail dot com
  Target Milestone: ---

Created attachment 36339
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36339&action=edit
code that reproduces segfault

The attached code causes a segfault with the latest version of gcc

g++ --version
g++ (GCC) 6.0.0 20150915 (experimental)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

result of compiling is:
g++: internal compiler error: Segmentation fault (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.