http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54888
Georg-Johann Lay <gjl at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |avr Priority|P3 |P4 Status|UNCONFIRMED |WAITING Last reconfirmed| |2012-10-21 Component|c |target Ever Confirmed|0 |1 --- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2012-10-21 20:40:45 UTC --- atxmega128d3 is not supported by avr-gcc, neither in 4.3 nor in 4.4 nor 4.5 nor 4.6. Please report to the respective bug tracker, obviously some private toolchain port. Compiling with a current compiler that supports ATxmega128D3 (4.7 or newer) stops compilation with errors. And I actually don't understand teh issue: Optimizing for size does not require to produce slow code. The code may run fast. If your program relies on slow executable code, the program is incorrect.