diff --git a/lib/Target/TargetRegisterInfo.cpp b/lib/Target/TargetRegisterInfo.cpp
index e36e1364504..bae3343a850 100644
--- a/lib/Target/TargetRegisterInfo.cpp
+++ b/lib/Target/TargetRegisterInfo.cpp
@@ -79,9 +79,9 @@ TargetRegisterInfo::getMinimalPhysRegClass(unsigned reg, EVT VT) const {
 /// registers for the specific register class.
 static void getAllocatableSetForRC(const MachineFunction &MF,
                                    const TargetRegisterClass *RC, BitVector &R){
-  for (TargetRegisterClass::iterator I = RC->allocation_order_begin(MF),
-         E = RC->allocation_order_end(MF); I != E; ++I)
-    R.set(*I);
+  ArrayRef<unsigned> Order = RC->getRawAllocationOrder(MF);
+  for (unsigned i = 0; i != Order.size(); ++i)
+    R.set(Order[i]);
 }
 
 BitVector TargetRegisterInfo::getAllocatableSet(const MachineFunction &MF,