Quad precision registers

Hi, guys.

     I was browsing through SparcRegisterInfo.td, and I did not find support for quad-precision floating-point registers, that is, a single register of 128 bits aliasing four registers of 32. As this is predicted in the Sparc V8 manual (http://www.sparc.org/standards/V8.pdf, page 33), do you guys plan on adding this feature?

all the best,

Fernando

This should be really easy to add support for, but we don't have an active sparc maintainer.

-Chris