There is an interesting paper on external sound static analysis tools (verification tools like SMT and SAT solvers) in Frama-C to increase effectiveness of optimizations and generating better, in terms of performance and not just correctness, code.<p><a href="http:&#x2F;&#x2F;link.springer.com&#x2F;chapter&#x2F;10.1007&#x2F;978-3-662-46081-8_17" rel="nofollow">http:&#x2F;&#x2F;link.springer.com&#x2F;chapter&#x2F;10.1007&#x2F;978-3-662-46081-8_1...</a>