[llvm] r177423 - Prepare to make r0 an allocatable register on PPC

[Jakob Stoklund Olesen]

On Mar 19, 2013, at 2:52 PM, Jakob Stoklund Olesen <stoklund at 2pi.dk> wrote:

>        %vreg18<def> = COPY %vreg0; G8RC:%vreg18 GPRC_and_GPRC_NOR0:%vreg0

Tablegen invents the class name GPRC_and_GPRC_NOR0 for the intersection of the two register classes. If you don't like the name, you can just define the class manually, and TableGen will pick it up.

/jakob