https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78327
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2016-11-12 Summary|Improve VRP for ranges of |Improve VRP for ranges for |signed integers in the |compares which do ranges of |range [-TYPE_MAX + N, N] |[-TYPE_MAX + N, N] Ever confirmed|0 |1 --- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fine but again anti-ranges is not the issue but not understanding that: (signed char) ((unsigned char) n + 125) < 0 is the same as n < -125 || 2 < n.