[llvm] [OpenMP] Adds omp_target_is_accessible routine (PR #138294)

[Michael Klemm via llvm-commits]

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@@ -280,6 +280,7 @@ int omp_get_initial_device(void);
 void *omp_target_alloc(size_t Size, int DeviceNum);
 void omp_target_free(void *DevicePtr, int DeviceNum);
 int omp_target_is_present(const void *Ptr, int DeviceNum);
+int omp_target_is_accessible(const void *Ptr, size_t Size, int DeviceNum);
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mjklemm wrote:

Yep.  I think there need to be entries in `omp_lib.h.var`, `omp.h.var`, `omp_lib.F90.var`.  You may also need to add something in `kmp_ftn_os.h`  and `dllexports` (but that's only for stubs).

https://github.com/llvm/llvm-project/pull/138294