XCore target: Add target specific EmitVAArg

[Robert Lytton]

Hi,

Add target specific EmitVAArg to XCore target.
This was so aggregates could be passed as var args too.

Robert
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20130815/094c9c13/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PatchVararg
Type: application/octet-stream
Size: 7227 bytes
Desc: PatchVararg
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20130815/094c9c13/attachment.obj>