[Bug rtl-optimization/72855] Long compile time due to integrity checking during dataflow analysis per loop

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72855

--- Comment #14 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Oh, I should have mentioned, it passed bootstrap with no regressions, so the
patch LGTM.