Question about auto-tune with android

I auto-tune model on my phone, it cost 200ms. this is my setting:

target = tvm.target.create(‘llvm -device=arm_cpu -target=arm64-linux-android’)

my cpu is: Qualcomm Snapdragon 652 , gpu:Adreno510

1.Does the model use gpu?

2.If i want auto-tune with gpu how to set target?