[vsipl++] [patch] Pre-release fixes

[Stefan Seefeld]

Jules Bergmann wrote:

>  - added checking to the IPP dispatch to check the operands have the 
> same type.  It was matching an expression
> 
>     View<complex<float>> = View<float> * View<complex<float>>
> 
> but there was no corresponding IPP vmul wrapper.
> 
>  - reverse the order of parameters to IPP Subtract and Divide.
> 
>       ippsSub(A, B, Z, ...)
> 
>    is equivalent to
> 
>       Z = B - A
> 
>    go figure!

doh !

I was wondering how to best test serial dispatch. It appears I was a bit
too sloppy when testing as I didn't add a new test that provides specifically
expressions that match the ones IPP can deal with.
Instead I locally modified an existing test to make sure the right backend
was called, but without checking the results.

What we need is a set of expression tests that match all the patterns we
provide backends for, and then somehow mark them up during execution so
we know we have complete coverage.

Regards,
		Stefan