On Thu, Feb 20, 2014 at 07:44:32PM +0100, Torvald Riegel wrote: > xagsmtp3.20140220184514.1789@xxxxxxxxxxxxxxxxxxxx > X-Xagent-Gateway: bldgate.vnet.ibm.com (XAGSMTP3 at BLDGATE) > > On Thu, 2014-02-20 at 10:11 -0800, Paul E. McKenney wrote: > > But yes, the compiler guys would be extremely happy to simply drop > > memory_order_consume from the standard, as it is the memory order > > that they most love to hate. > > > > Getting them to agree to any sort of peep-hole optimization semantics > > for memory_order_consume is likely problematic. > > I wouldn't be so pessimistic about that. If the transformations can be > shown to be always correct in terms of the semantics specified in the > standard, and if the performance win is sufficiently large, why not? Of > course, somebody has to volunteer to actually implement it :) I guess that there is only one way to find out. ;-) Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
