diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index dd5a350..87bb1db 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -1254,6 +1254,7 @@
   case ISD::ATOMIC_LOAD_AND:
   case ISD::ATOMIC_LOAD_OR:
   case ISD::ATOMIC_LOAD_XOR:
+  case ISD::ATOMIC_LOAD_NAND:
   case ISD::ATOMIC_LOAD_MIN:
   case ISD::ATOMIC_LOAD_MAX:
   case ISD::ATOMIC_LOAD_UMIN:
@@ -4285,6 +4286,7 @@
   case ISD::ATOMIC_LOAD_AND:
   case ISD::ATOMIC_LOAD_OR:
   case ISD::ATOMIC_LOAD_XOR:
+  case ISD::ATOMIC_LOAD_NAND:
   case ISD::ATOMIC_LOAD_MIN:
   case ISD::ATOMIC_LOAD_MAX:
   case ISD::ATOMIC_LOAD_UMIN:
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 4f577fc..bca5e75 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2995,6 +2995,7 @@
   assert((   Opcode == ISD::ATOMIC_LAS || Opcode == ISD::ATOMIC_LSS
           || Opcode == ISD::ATOMIC_SWAP || Opcode == ISD::ATOMIC_LOAD_AND
           || Opcode == ISD::ATOMIC_LOAD_OR || Opcode == ISD::ATOMIC_LOAD_XOR
+          || Opcode == ISD::ATOMIC_LOAD_NAND 
           || Opcode == ISD::ATOMIC_LOAD_MIN || Opcode == ISD::ATOMIC_LOAD_MAX
           || Opcode == ISD::ATOMIC_LOAD_UMIN || Opcode == ISD::ATOMIC_LOAD_UMAX) 
          && "Invalid Atomic Op");
@@ -4406,6 +4407,7 @@
   case ISD::ATOMIC_LOAD_AND:  return "AtomicLoadAnd";
   case ISD::ATOMIC_LOAD_OR:   return "AtomicLoadOr";
   case ISD::ATOMIC_LOAD_XOR:  return "AtomicLoadXor";
+  case ISD::ATOMIC_LOAD_NAND: return "AtomicLoadNand";
   case ISD::ATOMIC_LOAD_MIN:  return "AtomicLoadMin";
   case ISD::ATOMIC_LOAD_MAX:  return "AtomicLoadMax";
   case ISD::ATOMIC_LOAD_UMIN: return "AtomicLoadUMin";
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index f1dc64d..a55f904 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -3526,6 +3526,8 @@
     return implVisitBinaryAtomic(I, ISD::ATOMIC_LOAD_OR);
   case Intrinsic::atomic_load_xor:
     return implVisitBinaryAtomic(I, ISD::ATOMIC_LOAD_XOR);
+  case Intrinsic::atomic_load_nand:
+    return implVisitBinaryAtomic(I, ISD::ATOMIC_LOAD_NAND);
   case Intrinsic::atomic_load_min:
     return implVisitBinaryAtomic(I, ISD::ATOMIC_LOAD_MIN);
   case Intrinsic::atomic_load_max: