Xiaowen Hu has implemented an efficient interpreter for Soufflé. An Honours thesis can be found here, and the corresponding slides can be found here.

The work investigates various techniques to implement a high performance interpreter for Soufflé, so that the performance gap between Soufflé and synthesised C++ Soufflé code can be improved. We present a new strategy for implementing an efficient tree-walk interpreter - the Switch-based Shadow Tree technique. The new technique ensures a high-performance tree-walk interpreter for a coarse-grained instruction set and has sound engineering principles for the ease of development.