https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77992
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Component|driver |c Resolution|--- |INVALID Severity|critical |normal --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Again C is not the language you want for this. Also if you want this you should use a loop which hides the stores from GCC Using inline-asm. >Besides performance (I understand that the unaligned initialization could be >expensive), any other reasons? Because there is no reason to do it that way. You said to initialize only those fields anyways.