[OpenMP] Adds omp_target_is_accessible routine (#138294)

Adds omp_target_is_accessible routine.
Refactors common code from omp_target_is_present to work for both
routines.

---------

Co-authored-by: Shilei Tian <i@tianshilei.me>

1 files changed, 3 insertions, 0 deletions

diff --git a/offload/include/device.h b/offload/include/device.h
index bf93ce0460ae..4e27943d1dbc 100644
--- a/offload/include/device.h
+++ b/offload/include/device.h
@@ -158,6 +158,9 @@ struct DeviceTy {
   /// Ask the device whether the runtime should use auto zero-copy.
   bool useAutoZeroCopy();
 
+  /// Ask the device whether the storage is accessible.
+  bool isAccessiblePtr(const void *Ptr, size_t Size);
+
   /// Check if there are pending images for this device.
   bool hasPendingImages() const { return HasPendingImages; }