std.math performance (SSE vs. real)

[Kagamin via Digitalmars-d]

On Friday, 27 June 2014 at 14:50:14 UTC, Kai Nacke wrote:
> The doubledouble type is available for PowerPC. In fact, I try 
> to use this for my PowerPC64 port of LDC. The partial support 
> here is a bit annoying but I did not find the time to implement 
> the missing functions myself.
>
> It is "native" in the sense that it is a supported type by gcc 
> and xlc.

Doesn't SSE2 effectively operate on double doubles too with 
instructions like addpd (and others *pd)?