https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40988
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
One more note the Linux kernel sources has been corrected already.
They do now:
asm volatile(__ASM_SIZE(btr) " %2,%1"
CC_SET(c)
: CC_OUT(c) (oldbit)
: ADDR, "Ir" (nr) : "memory");
return oldbit;
and
asm volatile(__ASM_SIZE(bts) " %1,%0" : : ADDR, "Ir" (nr) : "memory");
Which describes the same thing as "+" as the memory clobber says it will update
memory too.
Linux commit 5b77e95dd7790 changed it from "+" to the above.
Linux commit 92934bcbf96bc (in 2006 which was included in 2.6.16) fixed it to
be "+" so you must have copied the linux sources from FC6 and didn't look to
see if the Linux kernel header was updated in your FC11 system.
