27 struct RTLInfoTy {  struct
28   typedef int32_t(is_valid_binary_ty)(void *);
29   typedef int32_t(is_data_exchangable_ty)(int32_t, int32_t);
30   typedef int32_t(number_of_devices_ty)();
31   typedef int32_t(init_device_ty)(int32_t);
32   typedef __tgt_target_table *(load_binary_ty)(int32_t, void *);
33   typedef void *(data_alloc_ty)(int32_t, int64_t, void *);
34   typedef int32_t(data_submit_ty)(int32_t, void *, void *, int64_t);
35   typedef int32_t(data_submit_async_ty)(int32_t, void *, void *, int64_t,
37   typedef int32_t(data_retrieve_ty)(int32_t, void *, void *, int64_t);
38   typedef int32_t(data_retrieve_async_ty)(int32_t, void *, void *, int64_t,
40   typedef int32_t(data_exchange_ty)(int32_t, void *, int32_t, void *, int64_t);
41   typedef int32_t(data_exchange_async_ty)(int32_t, void *, int32_t, void *,
43   typedef int32_t(data_delete_ty)(int32_t, void *);
44   typedef int32_t(run_region_ty)(int32_t, void *, void **, ptrdiff_t *,
46   typedef int32_t(run_region_async_ty)(int32_t, void *, void **, ptrdiff_t *,
48   typedef int32_t(run_team_region_ty)(int32_t, void *, void **, ptrdiff_t *,
50   typedef int32_t(run_team_region_async_ty)(int32_t, void *, void **,
54   typedef int64_t(init_requires_ty)(int64_t);
55   typedef int64_t(synchronize_ty)(int32_t, __tgt_async_info *);
57   int32_t Idx = -1;             // RTL index, index is the number of devices
61   int32_t NumberOfDevices = -1; // Number of devices this RTL deals with.
63   void *LibraryHandler = nullptr;
66   std::string RTLName;
70   is_valid_binary_ty *is_valid_binary = nullptr;
71   is_data_exchangable_ty *is_data_exchangable = nullptr;
72   number_of_devices_ty *number_of_devices = nullptr;
73   init_device_ty *init_device = nullptr;
74   load_binary_ty *load_binary = nullptr;
98   // The existence of the mutex above makes RTLInfoTy non-copyable.  argument
102   RTLInfoTy(const RTLInfoTy &r) {  in RTLInfoTy()  function