[UR] Fix OpenCL handles generated from sub-devices #17931
Merged
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Sub-devices don't appear in the list of devices, and so the prior OpenCL
implementation would assume that they are invalid. With this patch,
creating a sub-device will add it to a "cache" stored in the platform.
Multiple
DeviceCreateWithNativeHandle
calls with the same nativehandle will result in the same UR handle. A test has been added to
verify this.
This unfortunately required shuffling headers around to avoid circular
imports.
This fixes an issue tracked internally by Intel as URT-903