A code refinement methodology for performance-improved synthesis from C

Although many recent advances have been made in hardware synthesis techniques from software programming languages such as C, the performance of synthesized hardware commonly suffers due to the use of C constructs and coding practices that are not appropriate for hardware. Most previous approaches to addressing this problem require drastic changes to coding practice. We present an approach that instead requires only minimal changes but yields significant speedups. In this approach, a software developer initially writes C code as they normally would, and then applies simple refinement guidelines to only the performance-critical code regions, which are the regions most likely to be synthesized to hardware. Alternatively, if a designer is aware of performance-critical parts of the application, the guidelines could be followed during development. In this study, we analyze dozens of embedded benchmarks to determine the most common C coding practices that limit hardware performance, and intr...

• Type: Conference
• Year: 2006
• Where: ICCAD
• Authors: Greg Stitt, Frank Vahid, Walid A. Najjar
• Keywords: Hardware, Hardware Synthesis Techniques, ICCAD 2006, Performance-critical Code Regions, Simple Refinement Guidelines