NONAKA Kimihiro <nonakap%gmail.com@localhost> writes: > 2015-01-19 18:15 GMT+09:00 Frank Wille <frank%phoenix.owl.de@localhost>: > >> Maybe you can switch gcc into e500 mode? >> Does it work with -mcpu=8540 (e500v1) or -mcpu=8548 (e500v2) ? > > gcc -Os -mcpu=8548 is not generated those instructions. > Thanks! It seems that in the i386 port there's a notion that compilers target 486-or-later by default, to make binaries that run on all systems. ppc seems much messier, where setting the compiler for "any cpu that can run this port" is not reasonable. It seems that having something (in /usr/share/doc? wiki?) that explains this and when people have to use other flags would really help.
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