On Wed, May 20, 2015 at 02:37:05PM +0100, David Howells wrote:
> Paul E. McKenney <[email protected]> wrote:
>
> > I was thinking of "y" as a simple variable, but if it is something more
> > complex, then the compiler could do this, right?
> >
> > char *x;
> >
> > y;
> > x = z;
>
> Yeah. I presume it has to maintain the ordering, though.
Agreed. Unless of course y writes to x or some such.
Given that there is already code in the Linux kernel relying on
dependencies being carried through stores to local variables,
this should not be a problem.
Or am I missing something?
Thanx, Paul
