diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index efa6e48..af0224f 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -1574,6 +1574,7 @@
         case MVT::v4i16: Opc = ARM::VST2d16; break;
         case MVT::v2f32:
         case MVT::v2i32: Opc = ARM::VST2d32; break;
+        case MVT::v1i64: Opc = ARM::VST2d64; break;
         }
         SDValue Chain = N->getOperand(0);
         const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td
index d3aeeed..c3a8e08 100644
--- a/lib/Target/ARM/ARMInstrNEON.td
+++ b/lib/Target/ARM/ARMInstrNEON.td
@@ -352,6 +352,9 @@
 def  VST2d8   : VST2D<0b0000, "vst2.8">;
 def  VST2d16  : VST2D<0b0100, "vst2.16">;
 def  VST2d32  : VST2D<0b1000, "vst2.32">;
+def  VST2d64  : NLdSt<0,0b00,0b1010,0b1100, (outs),
+                      (ins addrmode6:$addr, DPR:$src1, DPR:$src2), IIC_VST,
+                      "vst1.64\t\\{$src1,$src2\\}, $addr", "", []>;
 
 def  VST2q8   : VST2Q<0b0000, "vst2.8">;
 def  VST2q16  : VST2Q<0b0100, "vst2.16">;
diff --git a/lib/Target/ARM/NEONPreAllocPass.cpp b/lib/Target/ARM/NEONPreAllocPass.cpp
index 5de2810..3233f27 100644
--- a/lib/Target/ARM/NEONPreAllocPass.cpp
+++ b/lib/Target/ARM/NEONPreAllocPass.cpp
@@ -125,6 +125,7 @@
   case ARM::VST2d8:
   case ARM::VST2d16:
   case ARM::VST2d32:
+  case ARM::VST2d64:
   case ARM::VST2LNd8:
   case ARM::VST2LNd16:
   case ARM::VST2LNd32: