https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77278
--- Comment #5 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
One thing we would also have to tackle is GFC_LOGICAL arguments.
C only has one bool type, which is (for gcc) equivalent to
logical(kind=1). We might just get by with
typedef enum { _zero=1, _one=1 } GFC_LOGICAL_4;
but what about arguments with other logical types?
We might actually need a C extension there, or disable
aliasing-based optimization.
