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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/100916] Bind(c): CFI_type_other unimplemented.
Date: Fri, 22 Oct 2021 12:58:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100916

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(In reply to sandra from comment #5)
> Jose's test case for this issue is still failing.

I find the testcase very confusing. For

  type(c_other), intent(in) :: a(:)
  call check_tk_as(a, t, k, e, 1_c_size_t)

it fails with:

  FAIL! type (A): 6 !=3D 255

which is printed by:
      printf ("FAIL! type (A): %d !=3D %d\n", auxp->type, type);

gfortran uses the following, which seems to be fine:
  #define CFI_type_struct 6
I do not quite understand why the testcase expects 255 as type now how it t=
ries
to generate that number.


Other fails:
  FAIL! type (B): 6 !=3D -1
  FAIL! type (C): -1 !=3D 6
  FAIL! type: -1 !=3D 6

Here the issue is that GCC uses CFI_type_struct (=3D 6)
while the testcase expects CFI_type_other (=3D -1).
I think one can argue for either.=