Optimizing code through iterative specialization

Code specialization is a way to obtain signicant improve-ment in the performance of an application. It works by exposing values of dierent parameters in source code. The availability of these specialized values enables the compilers to generate better optimized code. Although most of the ef-cient source code implementations contain specialized code to benet from these optimizations, the real impact of spe-cialization may however vary depending upon the value of the specializing parameter. In this paper, we suggest the specialization of code to acquire an iterative approach. For some specialized code, we search for a better version of code by re-specializing the code, followed by a low-level code analysis. The specialized versions fullling the required criteria are then transformed to generate another equivalent version of the original spe-cialized code. The approach has been tested on Itanium-II architecture using icc compiler. The results show signicant improve-ment in the performance of dierent behchmarks