https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120729
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Keywords| |compile-time-hog CC| |rguenth at gcc dot gnu.org Last reconfirmed| |2025-06-20 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- I see that the recursion to PHI defs isn't limited (all paths should be), so this is likely the obvious issue here. Re-using param_uninit_control_dep_attempts might be a good fit here (but it's default is quite high).