[Bug tree-optimization/127101] a+b when b is non-zero and it is known there is no overflow (due to a check) implies a+b is non-zero

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127101

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Note PR 127102 is the first step I think. It removes the umin.