Comment # 55 on bug 75276 from Tom Stellard

I have this working for some simple cases, can you test these mesa and llvm
trees together:

http://cgit.freedesktop.org/~tstellar/llvm/log/?h=vgpr-spilling-Jan07-2014

http://cgit.freedesktop.org/~tstellar/mesa/log/?h=vgpr-spilling-Jan07-2014