Re: [boost] [OT?] SIMD and Auto-Vectorization (was Re: How to structurate libraries ?)

Subject: Re: [boost] [OT?] SIMD and Auto-Vectorization (was Re: How to structurate libraries ?)
From: David A. Greene (greened_at_[hidden])
Date: 2009-01-21 16:19:18

On Wednesday 21 January 2009 03:11, David Abrahams wrote:
> on Tue Jan 20 2009, "David A. Greene" <greened-AT-obbligato.org> wrote:
> > When you're talking "optimal," you're setting a pretty dang high bar.
>
> I don't have to care about "optimal" if the difference between a
> suboptimal use of SIMD and not using it at all is an order of magnitude.

Well, the whole discussion is about "optimal."  If one doesn't care about 
"optimal" then a compiler will do just fine all the time and there's no need 
for a DSEL, asm or ugly gcc intrinsics.

                                           -Dave