diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -9281,8 +9281,7 @@
         LN0->getPointerInfo().getWithOffset(Offset), SplitSrcVT, Align,
         LN0->getMemOperand()->getFlags(), LN0->getAAInfo());
 
-    BasePtr = DAG.getNode(ISD::ADD, DL, BasePtr.getValueType(), BasePtr,
-                          DAG.getConstant(Stride, DL, BasePtr.getValueType()));
+    BasePtr = DAG.getMemBasePlusOffset(BasePtr, Stride, DL);
 
     Loads.push_back(SplitLoad.getValue(0));
     Chains.push_back(SplitLoad.getValue(1));
@@ -10462,17 +10461,14 @@
   if (DAG.getDataLayout().isBigEndian())
     ShAmt = AdjustBigEndianShift(ShAmt);
 
-  EVT PtrType = N0.getOperand(1).getValueType();
   uint64_t PtrOff = ShAmt / 8;
   unsigned NewAlign = MinAlign(LN0->getAlignment(), PtrOff);
   SDLoc DL(LN0);
   // The original load itself didn't wrap, so an offset within it doesn't.
   SDNodeFlags Flags;
   Flags.setNoUnsignedWrap(true);
-  SDValue NewPtr = DAG.getNode(ISD::ADD, DL,
-                               PtrType, LN0->getBasePtr(),
-                               DAG.getConstant(PtrOff, DL, PtrType),
-                               Flags);
+  SDValue NewPtr =
+      DAG.getMemBasePlusOffset(LN0->getBasePtr(), PtrOff, DL, Flags);
   AddToWorklist(NewPtr.getNode());
 
   SDValue Load;
@@ -15022,8 +15018,7 @@
   SDValue Ptr = St->getBasePtr();
   if (StOffset) {
     SDLoc DL(IVal);
-    Ptr = DAG.getNode(ISD::ADD, DL, Ptr.getValueType(),
-                      Ptr, DAG.getConstant(StOffset, DL, Ptr.getValueType()));
+    Ptr = DAG.getMemBasePlusOffset(Ptr, StOffset, DL);
     NewAlign = MinAlign(NewAlign, StOffset);
   }
 
@@ -15134,10 +15129,7 @@
       if (NewAlign < DAG.getDataLayout().getABITypeAlignment(NewVTTy))
         return SDValue();
 
-      SDValue NewPtr = DAG.getNode(ISD::ADD, SDLoc(LD),
-                                   Ptr.getValueType(), Ptr,
-                                   DAG.getConstant(PtrOff, SDLoc(LD),
-                                                   Ptr.getValueType()));
+      SDValue NewPtr = DAG.getMemBasePlusOffset(SDLoc(LD), Ptr, PtrOff);
       SDValue NewLD =
           DAG.getLoad(NewVT, SDLoc(N0), LD->getChain(), NewPtr,
                       LD->getPointerInfo().getWithOffset(PtrOff), NewAlign,
@@ -16314,8 +16306,7 @@
 
       SDValue St0 = DAG.getStore(Chain, DL, Lo, Ptr, ST->getPointerInfo(),
                                  ST->getAlignment(), MMOFlags, AAInfo);
-      Ptr = DAG.getNode(ISD::ADD, DL, Ptr.getValueType(), Ptr,
-                        DAG.getConstant(4, DL, Ptr.getValueType()));
+      Ptr = DAG.getMemBasePlusOffset(Ptr, 4, DL);
       Alignment = MinAlign(Alignment, 4U);
       SDValue St1 = DAG.getStore(Chain, DL, Hi, Ptr,
                                  ST->getPointerInfo().getWithOffset(4),
@@ -16689,9 +16680,7 @@
   // Lower value store.
   SDValue St0 = DAG.getStore(Chain, DL, Lo, Ptr, ST->getPointerInfo(),
                              ST->getAlignment(), MMOFlags, AAInfo);
-  Ptr =
-      DAG.getNode(ISD::ADD, DL, Ptr.getValueType(), Ptr,
-                  DAG.getConstant(HalfValBitSize / 8, DL, Ptr.getValueType()));
+  Ptr = DAG.getMemBasePlusOffset(Ptr, HalfValBitSize / 8, DL);
   // Higher value store.
   SDValue St1 =
       DAG.getStore(St0, DL, Hi, Ptr,
@@ -16955,7 +16944,7 @@
     // operand can't represent this new access since the offset is variable.
     MPI = MachinePointerInfo(OriginalLoad->getPointerInfo().getAddrSpace());
   }
-  NewPtr = DAG.getNode(ISD::ADD, DL, PtrType, NewPtr, Offset);
+  NewPtr = DAG.getMemBasePlusOffset(NewPtr, Offset, DL);
 
   // The replacement we need to do here is a little tricky: we need to
   // replace an extractelement of a load with a load.
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -469,8 +469,7 @@
 
         Lo = DAG.getStore(Chain, dl, Lo, Ptr, ST->getPointerInfo(), Alignment,
                           MMOFlags, AAInfo);
-        Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                          DAG.getConstant(4, dl, Ptr.getValueType()));
+        Ptr = DAG.getMemBasePlusOffset(Ptr, 4, dl);
         Hi = DAG.getStore(Chain, dl, Hi, Ptr,
                           ST->getPointerInfo().getWithOffset(4),
                           MinAlign(Alignment, 4U), MMOFlags, AAInfo);
@@ -580,9 +579,7 @@
 
       // Store the remaining ExtraWidth bits.
       IncrementSize = RoundWidth / 8;
-      Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                        DAG.getConstant(IncrementSize, dl,
-                                        Ptr.getValueType()));
+      Ptr = DAG.getMemBasePlusOffset(Ptr, IncrementSize, dl);
       Hi = DAG.getNode(
           ISD::SRL, dl, Value.getValueType(), Value,
           DAG.getConstant(RoundWidth, dl,
@@ -796,9 +793,7 @@
 
       // Load the remaining ExtraWidth bits.
       IncrementSize = RoundWidth / 8;
-      Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                         DAG.getConstant(IncrementSize, dl,
-                                         Ptr.getValueType()));
+      Ptr = DAG.getMemBasePlusOffset(Ptr, IncrementSize, dl);
       Hi = DAG.getExtLoad(ExtType, dl, Node->getValueType(0), Chain, Ptr,
                           LD->getPointerInfo().getWithOffset(IncrementSize),
                           ExtraVT, MinAlign(Alignment, IncrementSize), MMOFlags,
@@ -827,9 +822,7 @@
 
       // Load the remaining ExtraWidth bits.
       IncrementSize = RoundWidth / 8;
-      Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                         DAG.getConstant(IncrementSize, dl,
-                                         Ptr.getValueType()));
+      Ptr = DAG.getMemBasePlusOffset(Ptr, IncrementSize, dl);
       Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, Node->getValueType(0), Chain, Ptr,
                           LD->getPointerInfo().getWithOffset(IncrementSize),
                           ExtraVT, MinAlign(Alignment, IncrementSize), MMOFlags,
@@ -1417,7 +1410,7 @@
     unsigned Offset = TypeByteSize*i;
 
     SDValue Idx = DAG.getConstant(Offset, dl, FIPtr.getValueType());
-    Idx = DAG.getNode(ISD::ADD, dl, FIPtr.getValueType(), FIPtr, Idx);
+    Idx = DAG.getMemBasePlusOffset(FIPtr, Idx, dl);
 
     // If the destination vector element type is narrower than the source
     // element type, only store the bits necessary.
@@ -1480,8 +1473,7 @@
   } else {
     // Advance the pointer so that the loaded byte will contain the sign bit.
     unsigned ByteOffset = (FloatVT.getSizeInBits() / 8) - 1;
-    IntPtr = DAG.getNode(ISD::ADD, DL, StackPtr.getValueType(), StackPtr,
-                      DAG.getConstant(ByteOffset, DL, StackPtr.getValueType()));
+    IntPtr = DAG.getMemBasePlusOffset(StackPtr, ByteOffset, DL);
     State.IntPointerInfo = MachinePointerInfo::getFixedStack(MF, FI,
                                                              ByteOffset);
   }
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -2744,8 +2744,7 @@
 
     // Increment the pointer to the other half.
     unsigned IncrementSize = NVT.getSizeInBits()/8;
-    Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                      DAG.getConstant(IncrementSize, dl, Ptr.getValueType()));
+    Ptr = DAG.getMemBasePlusOffset(Ptr, IncrementSize, dl);
     Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr,
                         N->getPointerInfo().getWithOffset(IncrementSize), NEVT,
                         MinAlign(Alignment, IncrementSize), MMOFlags, AAInfo);
@@ -2769,8 +2768,7 @@
                         Alignment, MMOFlags, AAInfo);
 
     // Increment the pointer to the other half.
-    Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                      DAG.getConstant(IncrementSize, dl, Ptr.getValueType()));
+    Ptr = DAG.getMemBasePlusOffset(Ptr, IncrementSize, dl);
     // Load the rest of the low bits.
     Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr,
                         N->getPointerInfo().getWithOffset(IncrementSize),
@@ -4090,8 +4088,7 @@
     SDValue Offset = DAG.getSelect(dl, Zero.getValueType(), SignSet,
                                    Zero, Four);
     unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment();
-    FudgePtr = DAG.getNode(ISD::ADD, dl, FudgePtr.getValueType(),
-                           FudgePtr, Offset);
+    FudgePtr = DAG.getMemBasePlusOffset(FudgePtr, Offset, dl);
     Alignment = std::min(Alignment, 4u);
 
     // Load the value out, extending it from f32 to the destination float type.
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp
@@ -169,9 +169,7 @@
 
   // Increment the pointer to the other half.
   unsigned IncrementSize = NOutVT.getSizeInBits() / 8;
-  StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr,
-                         DAG.getConstant(IncrementSize, dl,
-                                         StackPtr.getValueType()));
+  StackPtr = DAG.getMemBasePlusOffset(StackPtr, IncrementSize, dl);
 
   // Load the second half from the stack slot.
   Hi = DAG.getLoad(NOutVT, dl, Store, StackPtr,
@@ -263,8 +261,7 @@
 
   // Increment the pointer to the other half.
   unsigned IncrementSize = NVT.getSizeInBits() / 8;
-  Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
-                    DAG.getConstant(IncrementSize, dl, Ptr.getValueType()));
+  Ptr = DAG.getMemBasePlusOffset(Ptr, IncrementSize, dl);
   Hi = DAG.getLoad(NVT, dl, Chain, Ptr,
                    LD->getPointerInfo().getWithOffset(IncrementSize),
                    MinAlign(Alignment, IncrementSize),
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -1164,9 +1164,7 @@
 
   // Increment the pointer to the other part.
   unsigned IncrementSize = Lo.getValueSizeInBits() / 8;
-  StackPtr =
-      DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr,
-                  DAG.getConstant(IncrementSize, dl, StackPtr.getValueType()));
+  StackPtr = DAG.getMemBasePlusOffset(StackPtr, IncrementSize, dl);
 
   // Load the Hi part from the stack slot.
   Hi = DAG.getLoad(Hi.getValueType(), dl, Store, StackPtr, MachinePointerInfo(),
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4222,7 +4222,6 @@
   SDValue Root = getRoot();
   SmallVector<SDValue, 4> Chains(std::min(MaxParallelChains, NumValues));
   SDLoc dl = getCurSDLoc();
-  EVT PtrVT = Ptr.getValueType();
   unsigned Alignment = I.getAlignment();
   AAMDNodes AAInfo;
   I.getAAMetadata(AAInfo);
@@ -4248,8 +4247,7 @@
       Root = Chain;
       ChainI = 0;
     }
-    SDValue Add = DAG.getNode(ISD::ADD, dl, PtrVT, Ptr,
-                              DAG.getConstant(Offsets[i], dl, PtrVT), Flags);
+    SDValue Add = DAG.getMemBasePlusOffset(Ptr, Offsets[i], dl, Flags);
     SDValue Val = SDValue(Src.getNode(), Src.getResNo() + i);
     if (MemVTs[i] != ValueVTs[i])
       Val = DAG.getPtrExtOrTrunc(Val, dl, MemVTs[i]);
@@ -6687,7 +6685,7 @@
     // Add the offset to the FP.
     Value *FP = I.getArgOperand(1);
     SDValue FPVal = getValue(FP);
-    SDValue Add = DAG.getNode(ISD::ADD, sdl, PtrVT, FPVal, OffsetVal);
+    SDValue Add = DAG.getMemBasePlusOffset(sdl, FPVal, OffsetVal);
     setValue(&I, Add);
 
     return;
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -3277,11 +3277,9 @@
         EVT newVT = EVT::getIntegerVT(*DAG.getContext(), bestWidth);
         if (newVT.isRound() &&
             shouldReduceLoadWidth(Lod, ISD::NON_EXTLOAD, newVT)) {
-          EVT PtrType = Lod->getOperand(1).getValueType();
           SDValue Ptr = Lod->getBasePtr();
           if (bestOffset != 0)
-            Ptr = DAG.getNode(ISD::ADD, dl, PtrType, Lod->getBasePtr(),
-                              DAG.getConstant(bestOffset, dl, PtrType));
+            Ptr = DAG.getMemBasePlusOffset(Ptr, bestOffset, dl);
           unsigned NewAlign = MinAlign(Lod->getAlignment(), bestOffset);
           SDValue NewLoad = DAG.getLoad(
               newVT, dl, Lod->getChain(), Ptr,
@@ -6902,7 +6900,7 @@
 
   Index = DAG.getNode(ISD::MUL, dl, IdxVT, Index,
                       DAG.getConstant(EltSize, dl, IdxVT));
-  return DAG.getNode(ISD::ADD, dl, IdxVT, VecPtr, Index);
+  return DAG.getMemBasePlusOffset(VecPtr, Index, dl);
 }
 
 //===----------------------------------------------------------------------===//