https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19987 Bug 19987 depends on bug 95424, which changed state.
Bug 95424 Summary: Failure to optimize division with numerator of 1 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95424 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED