[Bug fortran/81903] New: compiler reports a language problem (Invalid character in name at)

["karl.may0 at freenet dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81903

            Bug ID: 81903
           Summary: compiler reports a language problem (Invalid character
                    in name at)
           Product: gcc
           Version: 7.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: karl.may0 at freenet dot de
  Target Milestone: ---

Created attachment 42010
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42010&action=edit
source code for bug reproduction

When compiling the code in the attachement the compiler reports:

Test.f90:35:18:

           x(i)%a=>y(i)%a
                  1
Error: Invalid character in name at (1)

With ifort the code complies flawless. From my perspective the code complies
with the rules.