https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65892
--- Comment #10 from Martin Sebor <msebor at gcc dot gnu.org> --- Thanks (again) for your comments, Joseph. I had a chance to discuss this issue with Clark Nelson last week. Clark has worked on improving the aliasing parts of the C specification in the past, for example in N1520 (http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1520.htm). He agreed that like the issues pointed out in N1520, this is also an outstanding problem that would be worth for WG14 to revisit and fix. We also agreed to work together on a revised paper for the next WG14 meeting in October 2015.