[Bug fortran/89384] New: CONTIGUOUS dummy argument in BIND(C) interface incorrect when actual is non-contiguous

[Bader at lrz dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89384

            Bug ID: 89384
           Summary: CONTIGUOUS dummy argument in BIND(C) interface
                    incorrect when actual is non-contiguous
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Bader at lrz dot de
  Target Milestone: ---

Created attachment 45746
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45746&action=edit
test code

Fortran 2018 permits CONTIGUOUS dummy arguments also in BIND(C) interfaces.
However, currently the passing of a compactified copy required for
non-contiguous actual arguments does not work correctly in this context. A test
case is attached. Note that the problem does not arise if BIND(C) is removed
from the procedure definition.