diff --git a/llvm/include/llvm/Analysis/TargetTransformInfo.h b/llvm/include/llvm/Analysis/TargetTransformInfo.h
--- a/llvm/include/llvm/Analysis/TargetTransformInfo.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfo.h
@@ -117,7 +117,7 @@
   SmallVector<Type *, 4> ParamTys;
   SmallVector<const Value *, 4> Arguments;
   FastMathFlags FMF;
-  unsigned VF = 1;
+  ElementCount VF = ElementCount::getFixed(1);
   // If ScalarizationCost is UINT_MAX, the cost of scalarizing the
   // arguments and the return value will be computed based on types.
   unsigned ScalarizationCost = std::numeric_limits<unsigned>::max();
@@ -128,15 +128,10 @@
   IntrinsicCostAttributes(Intrinsic::ID Id, const CallBase &CI);
 
   IntrinsicCostAttributes(Intrinsic::ID Id, const CallBase &CI,
-                          unsigned Factor);
-  IntrinsicCostAttributes(Intrinsic::ID Id, const CallBase &CI,
-                          ElementCount Factor)
-      : IntrinsicCostAttributes(Id, CI, Factor.getKnownMinValue()) {
-    assert(!Factor.isScalable());
-  }
+                          ElementCount Factor);
 
   IntrinsicCostAttributes(Intrinsic::ID Id, const CallBase &CI,
-                          unsigned Factor, unsigned ScalarCost);
+                          ElementCount Factor, unsigned ScalarCost);
 
   IntrinsicCostAttributes(Intrinsic::ID Id, Type *RTy,
                           ArrayRef<Type *> Tys, FastMathFlags Flags);
@@ -159,7 +154,7 @@
   Intrinsic::ID getID() const { return IID; }
   const IntrinsicInst *getInst() const { return II; }
   Type *getReturnType() const { return RetTy; }
-  unsigned getVectorFactor() const { return VF; }
+  ElementCount getVectorFactor() const { return VF; }
   FastMathFlags getFlags() const { return FMF; }
   unsigned getScalarizationCost() const { return ScalarizationCost; }
   const SmallVectorImpl<const Value *> &getArgs() const { return Arguments; }
diff --git a/llvm/include/llvm/CodeGen/BasicTTIImpl.h b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
--- a/llvm/include/llvm/CodeGen/BasicTTIImpl.h
+++ b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
@@ -1148,7 +1148,7 @@
     if (isa<ScalableVectorType>(RetTy))
       return BaseT::getIntrinsicInstrCost(ICA, CostKind);
 
-    unsigned VF = ICA.getVectorFactor();
+    unsigned VF = ICA.getVectorFactor().getKnownMinValue();
     unsigned RetVF =
         (RetTy->isVectorTy() ? cast<FixedVectorType>(RetTy)->getNumElements()
                              : 1);
diff --git a/llvm/lib/Analysis/TargetTransformInfo.cpp b/llvm/lib/Analysis/TargetTransformInfo.cpp
--- a/llvm/lib/Analysis/TargetTransformInfo.cpp
+++ b/llvm/lib/Analysis/TargetTransformInfo.cpp
@@ -79,9 +79,10 @@
 
 IntrinsicCostAttributes::IntrinsicCostAttributes(Intrinsic::ID Id,
                                                  const CallBase &CI,
-                                                 unsigned Factor) :
-    RetTy(CI.getType()), IID(Id), VF(Factor) {
+                                                 ElementCount Factor)
+    : RetTy(CI.getType()), IID(Id), VF(Factor) {
 
+  assert(!Factor.isScalable() && "Scalable vectors are not yet supported");
   if (auto *FPMO = dyn_cast<FPMathOperator>(&CI))
     FMF = FPMO->getFastMathFlags();
 
@@ -93,9 +94,9 @@
 
 IntrinsicCostAttributes::IntrinsicCostAttributes(Intrinsic::ID Id,
                                                  const CallBase &CI,
-                                                 unsigned Factor,
-                                                 unsigned ScalarCost) :
-    RetTy(CI.getType()), IID(Id), VF(Factor), ScalarizationCost(ScalarCost) {
+                                                 ElementCount Factor,
+                                                 unsigned ScalarCost)
+    : RetTy(CI.getType()), IID(Id), VF(Factor), ScalarizationCost(ScalarCost) {
 
   if (const auto *FPMO = dyn_cast<FPMathOperator>(&CI))
     FMF = FPMO->getFastMathFlags();
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -13,7 +13,6 @@
 // independent and default TTI implementations handle the rest.
 //
 //===----------------------------------------------------------------------===//
-
 #include "AMDGPUTargetTransformInfo.h"
 #include "AMDGPUSubtarget.h"
 #include "Utils/AMDGPUBaseInfo.h"
@@ -103,7 +102,6 @@
   }
   return false;
 }
-
 void AMDGPUTTIImpl::getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
                                             TTI::UnrollingPreferences &UP) {
   const Function &F = *L->getHeader()->getParent();
@@ -696,7 +694,7 @@
       return getTypeBasedIntrinsicInstrCost(ICA, CostKind);
 
     Type *RetTy = ICA.getReturnType();
-    unsigned VF = ICA.getVectorFactor();
+    unsigned VF = ICA.getVectorFactor().getFixedValue();
     unsigned RetVF =
         (RetTy->isVectorTy() ? cast<FixedVectorType>(RetTy)->getNumElements()
                              : 1);
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -3350,7 +3350,7 @@
   Intrinsic::ID ID = getVectorIntrinsicIDForCall(CI, TLI);
 
   // Calculate the cost of the scalar and vector calls.
-  IntrinsicCostAttributes CostAttrs(ID, *CI, VecTy->getNumElements());
+  IntrinsicCostAttributes CostAttrs(ID, *CI, VecTy->getElementCount());
   int IntrinsicCost =
     TTI->getIntrinsicInstrCost(CostAttrs, TTI::TCK_RecipThroughput);
 
@@ -3718,7 +3718,7 @@
       Intrinsic::ID ID = getVectorIntrinsicIDForCall(CI, TLI);
 
       // Calculate the cost of the scalar and vector calls.
-      IntrinsicCostAttributes CostAttrs(ID, *CI, 1, 1);
+      IntrinsicCostAttributes CostAttrs(ID, *CI, ElementCount::getFixed(1), 1);
       int ScalarEltCost = TTI->getIntrinsicInstrCost(CostAttrs, CostKind);
       if (NeedToShuffleReuses) {
         ReuseShuffleCost -= (ReuseShuffleNumbers - VL.size()) * ScalarEltCost;