Improved interconnect sharing by identity operation insertion
D. Herrmann, R. Ernst · 2003
The paper presents an approach to reduce interconnect cost by insertion of identity operations in a control and data flow graph (CDFG). Other than previous approaches, it is based on systematic pattern analysis and automated transformation selection. The cost function controlling transformation selection is derived with statistical experiments and is optimized using practical benchmarks. The results show significantly reduced interconnect cost for most register architectures and application examples.