[Bug c++/71385] New: Internal compiler error when using concept as placeholder

["srarnold at web dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71385

            Bug ID: 71385
           Summary: Internal compiler error when using concept as
                    placeholder
           Product: gcc
           Version: 6.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: srarnold at web dot de
  Target Milestone: ---

Created attachment 38624
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38624&action=edit
preprocessed source file

g++-6 -fconcepts main.cpp

generated the following error message under openSUSE Leap and also Ubuntu
16.06:

g++-6: internal compiler error: Segmentation fault (program cc1plus)