https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70133
ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2016-03-08 Ever confirmed|0 |1 --- Comment #2 from ktkachov at gcc dot gnu.org --- You're using a Linaro GCC, please report the problem to them. -mtune=native should not be getting rewritten to an -march option and I don't see that happening with the /proc/cpuinfo contents you provided. I see it rewritten to -mtune=cortex-a53. The malformed -march option should not be getting passed down to the assembler as of commit r227028 on trunk. I can't reproduce this with a recent trunk. Can you please try with a recent clean snapshot from trunk?