[pjmlp]

Initially I was kind of disappointed of how AOT evolved on Android verus Windows Phone, then I came to realise Google was actually right.

Whereas Windows Phone would use Windows Store to AOT compile the application, Android would AOT on device.

Thus initially, it felt like using the tiny phones for that would be a bad decision, and it was, as the JIT was reintroduced 2 versions later (Android 7).

However, it was a mix and match of all modes, interpreter hand written in Assembly for quick startup, a JIT with PGO data gathering, AOT compiler with feedback loop from PGO data, latter on, sharing PGO data across devices via Play Store services.

This mix of JIT/AOT with PGO sharing across everyone, brings the optimal execution flow that a given application will ever get, allows reflection and dynamic loading to still be supported, and AOT compiler toolchain can have all time of the world to compile on the background.