https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104492
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> --- It might be possible to run the pass earlier to avoid this problem but I haven't managed to find a spot that didn't regress some -Wdangling-pointer tests (at least g++.dg/warn/Wdangling-pointer-2.C). Alternatively, if forwprop moves an access past a clobber (or whatever pass does it) it might be taught to suppress the warning when it does.
