> > but also does not make anyone actually use the options. Nobody reads > > the documention. Of course, this is a bit overstatement, but with a > > few exceptions, people in general do not enable non-default flags. > > I don't think this is fair. > Most people don't read the docs because they don't care about > performance, but most people who develop code that spends a lot of CPU > cycles actually read the docs at least up to loop unrolling.
Exactly my experience. Unfortunately there's no useful information on this topic in the GCC manual... Laurent
