https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40988
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So yes I was correct in saying the inline-asm was incorrect. it should have
been:
```
__asm__ __volatile__(
"btrl %2,%1\n\tsbbl %0,%0"
:"=r" (oldbit), "+m" (ADDR)
:"Ir" (nr) : "memory");
return oldbit;
```
as this both reads and write the memory.
