[Bug fortran/94446] Bogus "type mismatch" with TYPE(c_ptr) and sizeof()

["burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94446

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

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

--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Created attachment 50541
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50541&action=edit
Draft patch

I wonder whether something like that would work.

The only known failure is gfortran.dg/gomp/use_device_ptr-1.f90 which fails as
instead of
  void * x;
  #pragma omp target data map(alloc:x)
the wrong
  #pragma omp target data map(alloc:*x) map(alloc:x [pointer assign, bias: 0])
is generated (ICE as sizeof 'void' does not make sense).
(Fix should be in the code block below 'case OMP_LIST_MAP:' in trans-openmp.c)

I wonder what else goes wrong with 'type(c_ptr)' and 'type(c_ptr),pointer'
besides this issue and the one 'fn spec' issue (already fixed in the attached
patch).