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Design space exploration is a delicate process whose success lay on the designers’ shoulders. It is often based on a trial-and-error approach. Some basic metrics can be used to guide this process. In this paper, we explore accelerating loops from C-based specifications. We built a framework in which a design style, such as software-oriented, ASIP-oriented, or ASIC-oriented design, can be specified. Then, we propose new loop-oriented metrics that deliver some insight in the memory-computation tradeoff. They help to determine which aspects of the design between data accesses and ALU/Control operations limit or allow leveraging the loop acceleration opportunities. We also …