https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81388
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|INVALID |--- --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- void bar(); void foo(char *dst) { char *const end = dst; do { bar(); dst += 2; } while (dst < end); } Hmm actually I am backwards here. end + 2 < end is always false.