pytorch

649d4943 - [functorch] Refactor DynamicLayer TLS logic (pytorch/functorch#683)

[functorch] Refactor DynamicLayer TLS logic (pytorch/functorch#683) * Refactor DynamicLayer TLS logic Upon entry to a DynamicLayer, we save the TLS. Upon lowering to an inner Dynamiclayer, we restore the TLS * Remove default autograd key