[Bug c/120850] provide an special __builtin_memset_explicit

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120850

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Cristian Rodríguez from comment #9)
> (In reply to Andrew Pinski from comment #2)
> > Using an inline-asm to cause compiler barriers should be enough to stop gcc
> > from optimizing the code away.
> 
> The library implementation does that. but callers wont know, the
> implementation is not inline..

Right, gcc can't assume anything about a function it does not know.