[llvm] [OFFLOAD] Extend olMemRegister API to handle cases when a memory block may have been mapped outside of liboffload. (PR #172226)

[Kevin Sala Penades via llvm-commits]

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@@ -905,14 +865,20 @@ struct GenericDeviceTy : public DeviceAllocatorTy {
   /// as source/destination of memory transfers. We can use this information to
   /// lock the host buffer and optimize its memory transfers.
   Error notifyDataMapped(void *HstPtr, int64_t Size) {
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kevinsala wrote:

@fineg74 ?

https://github.com/llvm/llvm-project/pull/172226