https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82491
--- Comment #9 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- (In reply to Martin Liška from comment #8) > (In reply to Jakub Jelinek from comment #7) > > Dunno, either perform the calculation in poly_uint64 instead and then cast > > to poly_int64, or don't do it at all if there is overflow. > > Richard, may I ask you please one more time for poly_int hint how to write > overflow checking? What Jakub said about using poly_uint64 for the calculations sounds right in this context. CONST_INTs (and thus CONST_INT offsets) aren't inherently signed or unsigned.
