SSE types and structures

[Bernd Schmidt]

On Tue, 18 Jun 2002, Jan Hubicka wrote:

> > On Mon, Jun 17, 2002 at 04:26:09PM +0200, Jan Hubicka wrote:
> > > I am just poking around this.  It appears to be tricky, as the __builtin
> > > interface appears to be built around assumtpion that __m64 == long long.
> > > All the functions returns long long and I don't see way to cast it into
> > > V8QI and back easilly.
> > 
> > Well, duh, you'd do it uneasily and change them all, or add
> > a cast at every single invocation.
> 
> Problem is that I don't see how to write the cast in C.  Simple (long
> long)__m64 does not work of course :(

You could add another builtin to do it.  And I thought the cast worked -
casting to and from a vector the same size of an integer ought to be allowed.


Bernd