[Bug tree-optimization/111459] DSE after deleting trivial dead statements sometimes should do a cfgcleanup

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111459

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So i have a patch for cfgcleanup but it causes a regression which looks like a
fake one. I will finish it up later today. Dceing more definitely will improve
compile time and will improve other passes.