[Bug fortran/110033] New: rejects-valid: associate name corresponding to coarray selector should be considered a coarray

[neil.n.carlson at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110033

            Bug ID: 110033
           Summary: rejects-valid: associate name corresponding to coarray
                    selector should be considered a coarray
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: neil.n.carlson at gmail dot com
  Target Milestone: ---

In the following example, the associate name Y corresponds to a coarray.
According to 11.1.3.3 par. 2 (f2018), Y should be regarded as a coarray,
however gfortran rejects this as invalid.

real :: x[*]
associate (y => x)
  y[1] = 1.0
end associate
end

gfortran -fcoarray=lib gfortran-20230529.f90 
gfortran-20230529.f90:18:4:

   18 |   y[1] = 1.0
      |    1
Error: Coarray designator at (1) but ‘y’ is not a coarray