[Bug rtl-optimization/117922] [15/16/17 Regression] fold-mem-offsets pass is slow and memory hungry because UD/UD chain usage and the RD df problem

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117922

--- Comment #34 from ptomsich at gcc dot gnu.org ---
@rbiener: Do we have to consider this for a backport (it was a conversion of
the pass to RTL-SSA)? Or can we just update the target-milestone to 17.0 (where
it was resolved)?