@comaniac Great idea to only test for compilation success for large sub-graphs. I agree on this approach. 
For the clang++ part, it currently gets invoked in tvm.contrib.ndk.create_shared, which is passed as the fcompile to lib.export_library(). I guess it’s good just as it is right now? The concern, if any, is that the arguments needs to be overrided with linkage to libneuralnetworks.so and tvm source/dependencies, which may be a bit unfamiliar for beginners. Should we create some kind of custom compilation function that passes these options for end users?