Re: [c++std-parallel-1624] Re: Compilers and RCU readers: Once more unto the breach!

[Paul E. McKenney]

On Wed, May 20, 2015 at 02:37:05PM +0100, David Howells wrote:
> Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> 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

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