A practical approach to DSP code optimization using compiler/architecture
B. Varnagiryte, A. Zemelis, Ole Jess Olsen, Peter M. Koch, Ole Wolf, E. Kazanavičius · Ultrasound · 2002
This paper addresses DSP compiler efficiency issues. It examines C-code optimization and coding techniques for computationally intensive algorithm implementation on a DSP architecture in order to anticipate the efficiency of the compiler-generated code. The key result was, that for small experiments the built-in optimizations combined with manual compensation for known shortcomings of the compiler accounted for the major part of achievable improvements in cycle count and code size. Also, the compiler proved insensitive to various language constructs with equal semantics.Unfortunately the same results were not reproducible for a larger algorithm.