https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65892
--- Comment #40 from Andrew Haley <aph at gcc dot gnu.org> --- (In reply to rguent...@suse.de from comment #29) > Note I repeatedly said this part of the standard is just stupid. It makes > most if not all type-based alias analysis useless. I don't think so. It does mean that we'd have to feed all declared union types (or, at least the ones containing structs with common initial sequences) into the alias oracle. While unpleasant, in that simply declaring a type without even declaring an object of that type changes code generation, it doesn't render all type-based alias analysis useless. > Which means I'll refuse any patches implementing it in a way that affects > default behavior. Maybe --pedantic or even --pedantic-aliasing?
