Add instruction itinerary for the PPC64 A2 core.

This adds a full itinerary for IBM's PPC64 A2 embedded core. These
cores form the basis for the CPUs in the new IBM BG/Q supercomputer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153842 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index 69fe50b..fbd97de 100644
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -40,6 +40,7 @@
     DIR_7400,
     DIR_750, 
     DIR_970, 
+    DIR_A2,
     DIR_64  
   };
 }