http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59573
--- Comment #4 from Dennis.Yxun <dennis.yxun at gmail dot com> --- (In reply to Andrew Pinski from comment #3) > Can you try using ARM's foundation model (or another simulator) which should > be easier to compare against? Yes, I've tried with foundation_v8, and not only it extremely slow, but also it fails here. compiling gcc in qemu takes 5hours, but takes one week (someone told me) in foudation model. for another simulator, do you have any suggestion?