https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90706
--- Comment #9 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- (In reply to Berni from comment #8) > I just compiled AVR gcc 9.3.0 and tested the code again. Still no > improvement! Don't expect anything from v9 (or from v10 for that matter). The problem is in the middle-end, and problems there that affect targets like avr will not be fixed -- except in the rare case you manage to show that the issue affects a target that is important enough and report it for that target. And don't expect anything from v11+ either. The avr backend will likely be removed from the compiler, see PR92729. The depreciation is for v11 and wasn't even worth a mention in the v10 release notes caveats https://gcc.gnu.org/gcc-10/changes.html The general recommendation is to switch to clang / llvm where the respective backend is improving and has left experimental status;and is not suffering from self-destruction...
