The PackedFunc interface has arguments int num_args and TVMValue* args, which contain the number of arguments and a pointer to the array of arguments. Prior to this commit, when implementing the PackedFunc interface for TIR PrimFuncs, the MakePackedAPI pass would always assert that the args pointer was not null. However, the args pointer is allowed to be null if num_args is zero. For example, this occurs when calling an RPC function with no arguments.
This commit updates the MakePackedAPI transform to only assert that args is non-null when num_args is greater than zero.
The
PackedFuncinterface has argumentsint num_argsandTVMValue* args, which contain the number of arguments and a pointer to the array of arguments. Prior to this commit, when implementing thePackedFuncinterface for TIRPrimFuncs, theMakePackedAPIpass would always assert that theargspointer was not null. However, theargspointer is allowed to be null ifnum_argsis zero. For example, this occurs when calling an RPC function with no arguments.This commit updates the
MakePackedAPItransform to only assert thatargsis non-null whennum_argsis greater than zero.