Fix SPEC2000 GCC misscopilation and SIMD support

[Jan Hubicka]

> On Thu, Dec 12, 2002 at 09:52:54AM +0100, Jan Hubicka wrote:
> > I guess I need to review the code and fix that.  How it should work?
> > Should be FROM the inner mode of the subregs, or should it be the
> > inner mode for uses and the other way around the outer mode for sets?
> 
> The former, surely.
OK, so I guess I am getting into understanding of the code.
I will do that after returning home.  Thanks.
Only sh.c defines the macro in assymetric form.  There is no comment and I
have no idea what it is shooting for.  Hope it won't break by my change.

Honza
> 
> 
> r~