[RFC] Provide SSE/SSE2 ABI math builtins for ia32

[Richard Henderson]

On Wed, May 25, 2005 at 09:26:29PM +0200, Richard Guenther wrote:
>  1. There is already support for switching the ABI function-wise in
>     the backend for local static functions.  As a first step I'd like
>     to expose this functionality as a function attribute.

Sure.

>  3. Emit calls to alternate the functions during RTL expansion, possibly
>     following the naming scheme from the Intel compiler (to be able to
>     use their libm replacement for testing).

Good.

> Does this sound reasonable and profitable?  As far as I see glibc libm
> currently has no SSE/SSE2 implementations, neither for amd64 nor for
> ia32.

No one is working on this, afaik.  Using the Intel function
signatures is a very good idea.


r~