That's the upside of JITs and a great way to take advantage of them. Unfortunately, not every programmer is motivated to produce simple code. Some programmers p

That's the upside of JITs and a great way to take advantage of them. Unfortunately, not every programmer is motivated to produce simple code. Some programmers prefer to write more complex code, either because they enjoy building castles in their mind, or because they would rather not take the time to remove any of the dead ends and missteps they made while searching for a solution. Highly optimized code being convoluted is an extreme case, for rare algorithms or exotic levels of instruction-level efficiency. The first 95% of optimization is simplifying the code, which benefits both the machine and the programmers.