https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117596
--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
...what I currently have for trying is this addition to avr.cc:
static bool
avr_c_bitint_type_info (int n, struct bitint_info *info)
{
info->abi_limb_mode = QImode;
info->limb_mode = QImode;
info->big_endian = false;
info->extended = false;
return n <= 1024;
}
#undef TARGET_C_BITINT_TYPE_INFO
#define TARGET_C_BITINT_TYPE_INFO avr_c_bitint_type_info
