https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90408
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |10.3
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Oliver Stoeneberg from comment #3)
> Thanks - I checked with godbolt and it looks fine for -O1 and -O2 now.
>
> -Os on trunk generates an additional instruction compared to previous
> versions
>
> xor eax, eax
Yes that is on purpose as it reduces the overall size. X86 you cannot just
look at the # of instructions to figure out if it is a size win.
So closing as fixed.
