[Bug target/47675] [avr] problems with asm when all registers on clobber list

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47675

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-10 11:24:09 UTC ---
Don't use clobbers then but save/restore the registers yourself.  You can't
obviously take away all regs from GCC.  Eventually this should be diagnosed
though - I suppose you do see warnings?