llvm-project

6572a684 - [OpenMP] Add Fortran support for omp_* functions needing adapters

[OpenMP] Add Fortran support for omp_* functions needing adapters Taking omp_get_uid_from_device and omp_get_device_from_uid as examples. OpenMP 6.0 defines these functions as follows: ``` const char *omp_get_uid_from_device(int device_num); character(:) function omp_get_uid_from_device(device_num) pointer :: omp_get_uid_from_device integer, intent(in) :: device_num ``` and ``` int omp_get_device_from_uid(const char *uid); integer function omp_get_device_from_uid(uid) character(len=*), intent(in) :: uid ``` As a result, we cannot directly map the Fortran API declarations to the C API declarations. We need some adapter code to do the conversion. However, this means that we cannot just define the two functions as omp_* in kmp_ftn_entry.h without clashing with the adapter code. The current situation is less than ideal, as demonstrated by this draft PR, which shall serve as a base for discussing different solution approaches.