http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50186
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-08-25 12:05:46 UTC --- That seems like your gcc is assuming -mmfcrf for your CPU, yet your assembler can't assemble it (or is assembling for a CPU which doesn't have the mfcrf insn).
