VerboseAOT provides output when compiled AOT code is being found or stored in the cache.
When a cache is being populated, you might see the following:
Storing AOT code for ROMMethod 0x523B95C0 in shared cache... Succeeded.
When a populated cache is being accessed, you might see the following:
Finding AOT code for ROMMethod 0x524EAEB8 in shared cache... Succeeded.
AOT code is generated heuristically. You might not see any AOT code generated at all for a small application.