https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85316 Bug 85316 depends on bug 93917, which changed state.
Bug 93917 Summary: VRP forgets range of value read from memory https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93917 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED