[Bug tree-optimization/85588] [6/7/8/9 Regression] -fwrapv miscompilation

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85588

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r229484.