https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120342
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This is an aliasing violation. You write to p via int and then again via the struct and then read it back via int.