https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78562
--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- Thanks for looking into it. IIUC it's a backend issue. config/avr/builtins.def sets library names for some built-ins, and some libnames are the same because the libgcc asm code is exactly the same, even if the used types on C level are different. So the fix for this one would be to use different asm names (pointing to the same code)?
