[Bug fortran/78682] New: ICE calling (locally) a TBP of a remote CAF derived type

[stefano.zaghi at cnr dot it]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78682

            Bug ID: 78682
           Summary: ICE calling (locally) a TBP of a remote CAF derived
                    type
           Product: gcc
           Version: 6.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: stefano.zaghi at cnr dot it
  Target Milestone: ---

Created attachment 40252
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40252&action=edit
the MCVE reproducing the ICE

Dear all,

I get an ICE when I try to call (locally) a type-bound-procedure of
derived-type coarray on a remote image, see the attached MCVE. 

I know that very very probably my code is invalid with respect the current
standard, but because with GNU gfortran 6.2.1 I obtain the following Internal
Compiler Error, I would like to let you know.

Compilation/Error results

gfortran -fcoarray=lib gfortran_ice_caf.f90
gfortran_ice_caf.f90:31:0:

   if (this_image()==2) call core_caf[1]%core_value_print

internal compiler error: in gfc_get_tree_for_caf_expr, at
fortran/trans-expr.c:1818
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.

Architecture details

Linux 4.8.8-2-ARCH #1 SMP PREEMPT Thu Nov 17 14:51:03 CET 2016 x86_64 GNU/Linux

Intel(R) Xeon(R) CPU X5650@2.67GHz

GNU Fortran (GCC) 6.2.1 20160830 

My best regards.

P.S. thank you very very much for your work, you are my superheroes!