Allow up to 64 functional units per processor itinerary.

This patch changes the type used to hold the FU bitset from unsigned to uint64_t.
This will be needed for some upcoming PowerPC itineraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158679 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp b/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
index a03ed03..7f1658d 100644
--- a/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
+++ b/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
@@ -3183,7 +3183,7 @@
   unsigned SchedClass = TID.getSchedClass();
   const InstrStage* IS =
                     ResourceTracker->getInstrItins()->beginStage(SchedClass);
-  unsigned FuncUnits = IS->getUnits();
+  uint64_t FuncUnits = IS->getUnits();
   return !FuncUnits;
 }