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Differential D113124 Diff 401489 openmp/libomptarget/src/api.cpp

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openmp/libomptarget/src/api.cpp

Show First 20 Lines • Show All 101 Lines • ▼ Show 20 Lines if (DevicesSize <= (size_t)device_num) {
DP("Call to omp_target_is_present with invalid device ID, returning " DP("Call to omp_target_is_present with invalid device ID, returning "
"false\n"); "false\n");
return false; return false;
} }
DeviceTy &Device = *PM->Devices[device_num]; DeviceTy &Device = *PM->Devices[device_num];
bool IsLast; // not used bool IsLast; // not used
bool IsHostPtr; bool IsHostPtr;
void *TgtPtr = Device.getTgtPtrBegin(const_cast<void *>(ptr), 0, IsLast, TargetPointerResultTy TPR =
Device.getTgtPtrBegin(const_cast<void *>(ptr), 0, IsLast,
/*UpdateRefCount=*/false, /*UpdateRefCount=*/false,
/*UseHoldRefCount=*/false, IsHostPtr); /*UseHoldRefCount=*/false, IsHostPtr);
int rc = (TgtPtr != NULL); int rc = (TPR.TargetPointer != NULL);
// Under unified memory the host pointer can be returned by the // Under unified memory the host pointer can be returned by the
// getTgtPtrBegin() function which means that there is no device // getTgtPtrBegin() function which means that there is no device
// corresponding point for ptr. This function should return false // corresponding point for ptr. This function should return false
// in that situation. // in that situation.
if (PM->RTLs.RequiresFlags & OMP_REQ_UNIFIED_SHARED_MEMORY) if (PM->RTLs.RequiresFlags & OMP_REQ_UNIFIED_SHARED_MEMORY)
rc = !IsHostPtr; rc = !IsHostPtr;
DP("Call to omp_target_is_present returns %d\n", rc); DP("Call to omp_target_is_present returns %d\n", rc);
return rc; return rc;
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