conversions between vectors

[Gabriel Dos Reis]

Aldy Hernandez <aldyh@redhat.com> writes:

| > > 	c2 = __builtin_vector_add_v4si_unsigned (a2, b2);
| > > 
| > > even if both builtins map to the same exact machine instruction.
| > 
| > If both are signed, or both unsigned, surely programmers will just use the
| > + operator?
| 
| we have no support for any kind of operations on vectors.

I think we should -- that was discussed in another thread.

-- Gaby