> It should also be remembered that C++ compilers are even worse than C compilers at mis-using instances of undefined behavior to mis-optimize code, especially

> It should also be remembered that C++ compilers are even worse than C compilers at mis-using instances of undefined behavior to mis-optimize code, especially since they typically rely even more on optimization steps to have half-decent performance. Could you provide a concrete example of this? Personally I've not seen anything like what you seem to be describing.