[Bug tree-optimization/91775] Can eliminate compare from loop with known number of iterations

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91775

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is iv selection.  You need to look into iv-opts on why it is not choosing
the one you want it to choose.