May be you'll run the only one branch?)) w/o dividing on gpu and cpu?))

Tested on 5*rx550 baffin unlocked monero v8 (actually v9): 330 h/s each on "--auto"
SRB gives 430 h/s = the same as monero v7.

Adrenalin 18.6.1
Win10x64
FX8320

Wanna try not auto mode, but idk what's that:
"mode" : "GPU", -ok, gpu...
"worksize" : 8,
"alpha" : 64,
"beta" : 8,
"gamma" : 4,
"delta" : 4,
"epsilon" : 4,
"zeta":4,
"index" : 0, - number of gpu
"multi_hash":128