On Mon, Mar 05, 2018 at 09:58:50AM -0600, Bill Schmidt wrote:
> 
> > On Mar 5, 2018, at 9:04 AM, Segher Boessenkool <seg...@kernel.crashing.org> 
> > wrote:
> > 
> > Hi!
> > 
> > On Sun, Mar 04, 2018 at 01:52:20PM -0600, Bill Schmidt wrote:
> >> We realized recently that the use of "rs6000" in a builtin name doesn't 
> >> agree
> >> with our normal naming conventions.  Thus this patch changes such a builtin
> >> to __builtin_powerpc_speculation_barrier instead.
> >> 
> >> Bootstrapped and tested on powerpc64le-linux-gnu with no regressions.  Is
> >> this okay for trunk?
> > 
> > Most of our builtins have *no* powerpc or similar in the name, and the
> > two that do have "ppc".
> > 
> > Should we use __builtin_speculation_barrier?  It sounds more likely
> > that other archs will want that as well, than that it will conflict.
> 
> That was my initial proposal.  Richard asked me to insert the "rs6000_" to 
> keep this
> in a separate namespace for the time being.  There is still discussion about a
> more general speculation barrier builtin for all targets, though that has 
> languished
> for over a month now.
> > 
> > For the .md patterns we already have various that are named rs6000_*
> > (and none ppc* or power*).
> > 
> Would it be reasonable to go with __builtin_ppc_speculation_barrier for the
> builtin name and revert to rs6000_* in the .md patterns, etc.?

Yeah that sounds fine.  Okay for trunk with such changes.  Thanks!


Segher

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