https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100962
--- Comment #2 from mojo at world3 dot net --- avr-gcc-11.1.0-x64-windows>bin\avr-gcc -Og -xc -Wall -mmcu=atxmega64a1u test.c avr-gcc-11.1.0-x64-windows>bin\avr-objdump -h -S a.out > list.s Still producing code like this 2de: 18 97 sbiw r26, 0x08 ; 8 2e0: 19 96 adiw r26, 0x09 ; 9 Thanks.