https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92729
--- Comment #11 from abebeos at lazaridis dot com --- (In reply to John Paul Adrian Glaubitz from comment #10) [...] > The main problem is apparently that the target hasn't been properly worked > on for a long time. [...] Yes, this seems to result in this barrier: => missing stable development environment for the work on the avr backend itself (build/test/simulate). So this issue here splits into 3 major steps: A) create a stable dev environment fro work on the avr backend B) remove deprecated cc0 from avr backend (gcc11 requirement, main issue&bounty), without necessarily using MODE_CC (similar to m68k) C) (optional) convert code to MODE_CC Seeing that the microchip custom version uses 5.x gcc and with different dependencies than the original code, step A could already become a multi month effort. If anyone knows a "stable starting point" (for developing on the avr backend), please point to it (ideally a public repo containing all).
