http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58520
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- By the way, I think that saying which specific command line options you are using is *much* more important than providing CPU brand and model, because the optimizers do not magically divine what you hardware exactly supports (like, eg, availability of vector instructions, etc) just assume by default a very outdated Pentium-class CPU. Sorry, I pointed out something obvious, but somebody may find it useful to know.
