diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 87572d6..5eeb605 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1061,7 +1061,7 @@
 Value *CodeGenFunction::EmitNeonSplat(Value *V, Constant *C) {
   unsigned nElts = cast<llvm::VectorType>(V->getType())->getNumElements();
   SmallVector<Constant*, 16> Indices(nElts, C);
-  Value* SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+  Value* SV = llvm::ConstantVector::get(Indices);
   return Builder.CreateShuffleVector(V, V, SV, "lane");
 }
 
@@ -1087,7 +1087,7 @@
   const llvm::VectorType *VTy = cast<llvm::VectorType>(Ty);
   llvm::Constant *C = ConstantInt::get(VTy->getElementType(), neg ? -SV : SV);
   SmallVector<llvm::Constant*, 16> CV(VTy->getNumElements(), C);
-  return llvm::ConstantVector::get(CV.begin(), CV.size());
+  return llvm::ConstantVector::get(CV);
 }
 
 /// GetPointeeAlignment - Given an expression with a pointer type, find the
@@ -1261,15 +1261,14 @@
   }
   case ARM::BI__builtin_neon_vext_v:
   case ARM::BI__builtin_neon_vextq_v: {
-    ConstantInt *C = dyn_cast<ConstantInt>(Ops[2]);
-    int CV = C->getSExtValue();
+    int CV = cast<ConstantInt>(Ops[2])->getSExtValue();
     SmallVector<Constant*, 16> Indices;
     for (unsigned i = 0, e = VTy->getNumElements(); i != e; ++i)
       Indices.push_back(ConstantInt::get(Int32Ty, i+CV));
     
     Ops[0] = Builder.CreateBitCast(Ops[0], Ty);
     Ops[1] = Builder.CreateBitCast(Ops[1], Ty);
-    Value* SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+    Value *SV = llvm::ConstantVector::get(Indices);
     return Builder.CreateShuffleVector(Ops[0], Ops[1], SV, "vext");
   }
   case ARM::BI__builtin_neon_vget_lane_i8:
@@ -1756,7 +1755,7 @@
         Indices.push_back(ConstantInt::get(Int32Ty, i+e+vi));
       }
       Value *Addr = Builder.CreateConstInBoundsGEP1_32(Ops[0], vi);
-      SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+      SV = llvm::ConstantVector::get(Indices);
       SV = Builder.CreateShuffleVector(Ops[1], Ops[2], SV, "vtrn");
       SV = Builder.CreateStore(SV, Addr);
     }
@@ -1775,7 +1774,7 @@
         Indices.push_back(ConstantInt::get(Int32Ty, 2*i+vi));
 
       Value *Addr = Builder.CreateConstInBoundsGEP1_32(Ops[0], vi);
-      SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+      SV = llvm::ConstantVector::get(Indices);
       SV = Builder.CreateShuffleVector(Ops[1], Ops[2], SV, "vuzp");
       SV = Builder.CreateStore(SV, Addr);
     }
@@ -1795,7 +1794,7 @@
         Indices.push_back(ConstantInt::get(Int32Ty, ((i + vi*e) >> 1)+e));
       }
       Value *Addr = Builder.CreateConstInBoundsGEP1_32(Ops[0], vi);
-      SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+      SV = llvm::ConstantVector::get(Indices);
       SV = Builder.CreateShuffleVector(Ops[1], Ops[2], SV, "vzip");
       SV = Builder.CreateStore(SV, Addr);
     }
@@ -2032,7 +2031,7 @@
       for (unsigned i = 0; i != 8; ++i)
         Indices.push_back(llvm::ConstantInt::get(Int32Ty, shiftVal + i));
       
-      Value* SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+      Value* SV = llvm::ConstantVector::get(Indices);
       return Builder.CreateShuffleVector(Ops[1], Ops[0], SV, "palignr");
     }
     
@@ -2063,7 +2062,7 @@
       for (unsigned i = 0; i != 16; ++i)
         Indices.push_back(llvm::ConstantInt::get(Int32Ty, shiftVal + i));
       
-      Value* SV = llvm::ConstantVector::get(Indices.begin(), Indices.size());
+      Value* SV = llvm::ConstantVector::get(Indices);
       return Builder.CreateShuffleVector(Ops[1], Ops[0], SV, "palignr");
     }
     
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index e8ac813..9e3ed62 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -792,9 +792,8 @@
     Mask.push_back(llvm::ConstantInt::get(Int32Ty, InIdx));
   }
 
-  llvm::Value *MaskV = llvm::ConstantVector::get(&Mask[0], Mask.size());
-  Vec = Builder.CreateShuffleVector(Vec,
-                                    llvm::UndefValue::get(Vec->getType()),
+  llvm::Value *MaskV = llvm::ConstantVector::get(Mask);
+  Vec = Builder.CreateShuffleVector(Vec, llvm::UndefValue::get(Vec->getType()),
                                     MaskV, "tmp");
   return RValue::get(Vec);
 }
@@ -997,7 +996,7 @@
         Mask[InIdx] = llvm::ConstantInt::get(Int32Ty, i);
       }
 
-      llvm::Value *MaskV = llvm::ConstantVector::get(&Mask[0], Mask.size());
+      llvm::Value *MaskV = llvm::ConstantVector::get(Mask);
       Vec = Builder.CreateShuffleVector(SrcVal,
                                         llvm::UndefValue::get(Vec->getType()),
                                         MaskV, "tmp");
@@ -1012,8 +1011,7 @@
         ExtMask.push_back(llvm::ConstantInt::get(Int32Ty, i));
       for (; i != NumDstElts; ++i)
         ExtMask.push_back(llvm::UndefValue::get(Int32Ty));
-      llvm::Value *ExtMaskV = llvm::ConstantVector::get(&ExtMask[0],
-                                                        ExtMask.size());
+      llvm::Value *ExtMaskV = llvm::ConstantVector::get(ExtMask);
       llvm::Value *ExtSrcVal =
         Builder.CreateShuffleVector(SrcVal,
                                     llvm::UndefValue::get(SrcVal->getType()),
@@ -1028,7 +1026,7 @@
         unsigned Idx = getAccessedFieldNo(i, Elts);
         Mask[Idx] = llvm::ConstantInt::get(Int32Ty, i+NumDstElts);
       }
-      llvm::Value *MaskV = llvm::ConstantVector::get(&Mask[0], Mask.size());
+      llvm::Value *MaskV = llvm::ConstantVector::get(Mask);
       Vec = Builder.CreateShuffleVector(Vec, ExtSrcVal, MaskV, "tmp");
     } else {
       // We should never shorten the vector
@@ -1482,7 +1480,7 @@
   for (unsigned i = 0, e = Elts.size(); i != e; ++i)
     CElts.push_back(llvm::ConstantInt::get(Int32Ty, Elts[i]));
 
-  return llvm::ConstantVector::get(&CElts[0], CElts.size());
+  return llvm::ConstantVector::get(CElts);
 }
 
 LValue CodeGenFunction::
@@ -1535,7 +1533,7 @@
     else
       CElts.push_back(cast<llvm::Constant>(BaseElts->getOperand(Indices[i])));
   }
-  llvm::Constant *CV = llvm::ConstantVector::get(&CElts[0], CElts.size());
+  llvm::Constant *CV = llvm::ConstantVector::get(CElts);
   return LValue::MakeExtVectorElt(Base.getExtVectorAddr(), CV,
                                   Base.getVRQualifiers());
 }
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index c569b37..d4d9c92 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -914,7 +914,7 @@
         else
           Inits.push_back(llvm::ConstantFP::get(VMContext, Elt.getFloat()));
       }
-      return llvm::ConstantVector::get(&Inits[0], Inits.size());
+      return llvm::ConstantVector::get(Inits);
     }
     }
   }
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index e309e36..bd54549 100644
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -582,10 +582,10 @@
     // Splat the element across to all elements
     llvm::SmallVector<llvm::Constant*, 16> Args;
     unsigned NumElements = cast<llvm::VectorType>(DstTy)->getNumElements();
-    for (unsigned i = 0; i < NumElements; i++)
+    for (unsigned i = 0; i != NumElements; ++i)
       Args.push_back(llvm::ConstantInt::get(CGF.Int32Ty, 0));
 
-    llvm::Constant *Mask = llvm::ConstantVector::get(&Args[0], NumElements);
+    llvm::Constant *Mask = llvm::ConstantVector::get(Args);
     llvm::Value *Yay = Builder.CreateShuffleVector(UnV, UnV, Mask, "splat");
     return Yay;
   }
@@ -684,7 +684,7 @@
         concat.push_back(llvm::ConstantInt::get(CGF.Int32Ty, 2*i+1));
       }
       
-      Value* CV = llvm::ConstantVector::get(concat.begin(), concat.size());
+      Value* CV = llvm::ConstantVector::get(concat);
       LHS = Builder.CreateShuffleVector(LHS, RHS, CV, "concat");
       LHSElts *= 2;
     } else {
@@ -710,7 +710,7 @@
     for (unsigned i = 0, e = MTy->getNumElements(); i != e; ++i)
       MaskV.push_back(EltMask);
     
-    Value* MaskBits = llvm::ConstantVector::get(MaskV.begin(), MaskV.size());
+    Value* MaskBits = llvm::ConstantVector::get(MaskV);
     Mask = Builder.CreateAnd(Mask, MaskBits, "mask");
     
     // newv = undef
@@ -762,7 +762,7 @@
     indices.push_back(C);
   }
 
-  Value* SV = llvm::ConstantVector::get(indices.begin(), indices.size());
+  Value *SV = llvm::ConstantVector::get(indices);
   return Builder.CreateShuffleVector(V1, V2, SV, "shuffle");
 }
 Value *ScalarExprEmitter::VisitMemberExpr(MemberExpr *E) {
@@ -882,7 +882,7 @@
             VIsUndefShuffle = false;
           }
           if (!Args.empty()) {
-            llvm::Constant *Mask = llvm::ConstantVector::get(&Args[0], ResElts);
+            llvm::Constant *Mask = llvm::ConstantVector::get(Args);
             V = Builder.CreateShuffleVector(LHS, RHS, Mask);
             ++CurIdx;
             continue;
@@ -937,7 +937,7 @@
         Args.push_back(llvm::ConstantInt::get(CGF.Int32Ty, j));
       for (unsigned j = InitElts; j != ResElts; ++j)
         Args.push_back(llvm::UndefValue::get(CGF.Int32Ty));
-      llvm::Constant *Mask = llvm::ConstantVector::get(&Args[0], ResElts);
+      llvm::Constant *Mask = llvm::ConstantVector::get(Args);
       Init = Builder.CreateShuffleVector(Init, llvm::UndefValue::get(VVT),
                                          Mask, "vext");
 
@@ -954,7 +954,7 @@
     // merging subsequent shuffles into this one.
     if (CurIdx == 0)
       std::swap(V, Init);
-    llvm::Constant *Mask = llvm::ConstantVector::get(&Args[0], ResElts);
+    llvm::Constant *Mask = llvm::ConstantVector::get(Args);
     V = Builder.CreateShuffleVector(V, Init, Mask, "vecinit");
     VIsUndefShuffle = isa<llvm::UndefValue>(Init);
     CurIdx += InitElts;
@@ -1167,7 +1167,7 @@
     for (unsigned i = 0; i < NumElements; i++)
       Args.push_back(Zero);
 
-    llvm::Constant *Mask = llvm::ConstantVector::get(&Args[0], NumElements);
+    llvm::Constant *Mask = llvm::ConstantVector::get(Args);
     llvm::Value *Yay = Builder.CreateShuffleVector(UnV, UnV, Mask, "splat");
     return Yay;
   }