On Mon, 2015-02-09 at 09:10 -0800, Mike Stump wrote: > On Feb 9, 2015, at 7:11 AM, Alex Velenko <alex.vele...@arm.com> wrote: > > The following patch makes atomic-op-consume.c XFAIL > > > > Is this patch ok? > > Ok. > > I’d shorten the comment above the xfail to be exceedingly short: > > /* PR59448 consume not implemented yet */ > > The reason is the brain can process this about 8x faster. Also, one can cut > and paste the PR part into a web browser directly, or, if you have an > electric bugzilla mode for emacs, it will pop right up. */
Given the discussions we had in ISO C++ SG1, it seems the only way to fix memory_order_consume is to deprecate it (or let it rot forever), and add something else to the standard. See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4321.pdf IOW, I believe the promotion is here to stay. I'm not aware of any other implementation doing something else. Thus, XFAIL doesn't seem right to me.
