https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104194
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- A temporary workaround now applied. The dwarf-discuss thread seems to prefer using separate DW_ATE_* values instead of DW_AT_precision/DW_AT_minimum_exponent, but hasn't converged yet.