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
@@ -709,7 +709,7 @@
   bool isTypeLegal(Type *Ty) const;
 
   /// Returns the estimated number of registers required to represent \p Ty.
-  unsigned getRegUsageForType(Type *Ty) const;
+  InstructionCost getRegUsageForType(Type *Ty) const;
 
   /// Return true if switches should be turned into lookup tables for the
   /// target.
@@ -1528,7 +1528,7 @@
   virtual bool isProfitableToHoist(Instruction *I) = 0;
   virtual bool useAA() = 0;
   virtual bool isTypeLegal(Type *Ty) = 0;
-  virtual unsigned getRegUsageForType(Type *Ty) = 0;
+  virtual InstructionCost getRegUsageForType(Type *Ty) = 0;
   virtual bool shouldBuildLookupTables() = 0;
   virtual bool shouldBuildLookupTablesForConstant(Constant *C) = 0;
   virtual bool shouldBuildRelLookupTables() = 0;
@@ -1921,7 +1921,7 @@
   }
   bool useAA() override { return Impl.useAA(); }
   bool isTypeLegal(Type *Ty) override { return Impl.isTypeLegal(Ty); }
-  unsigned getRegUsageForType(Type *Ty) override {
+  InstructionCost getRegUsageForType(Type *Ty) override {
     return Impl.getRegUsageForType(Ty);
   }
   bool shouldBuildLookupTables() override {
diff --git a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
--- a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
@@ -291,7 +291,7 @@
 
   bool isTypeLegal(Type *Ty) const { return false; }
 
-  unsigned getRegUsageForType(Type *Ty) const { return 1; }
+  InstructionCost getRegUsageForType(Type *Ty) const { return 1; }
 
   bool shouldBuildLookupTables() const { return true; }
 
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
@@ -356,9 +356,8 @@
     return getTLI()->isTypeLegal(VT);
   }
 
-  unsigned getRegUsageForType(Type *Ty) {
-    InstructionCost::CostType Val =
-        *getTLI()->getTypeLegalizationCost(DL, Ty).first.getValue();
+  InstructionCost getRegUsageForType(Type *Ty) {
+    InstructionCost Val = getTLI()->getTypeLegalizationCost(DL, Ty).first;
     assert(Val >= 0 && "Negative cost!");
     return Val;
   }
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
@@ -449,7 +449,7 @@
   return TTIImpl->isTypeLegal(Ty);
 }
 
-unsigned TargetTransformInfo::getRegUsageForType(Type *Ty) const {
+InstructionCost TargetTransformInfo::getRegUsageForType(Type *Ty) const {
   return TTIImpl->getRegUsageForType(Ty);
 }
 
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -6568,8 +6568,8 @@
   const auto &TTICapture = TTI;
   auto GetRegUsage = [&TTICapture](Type *Ty, ElementCount VF) {
     if (Ty->isTokenTy() || !VectorType::isValidElementType(Ty))
-      return 0U;
-    return TTICapture.getRegUsageForType(VectorType::get(Ty, VF));
+      return 0;
+    return *TTICapture.getRegUsageForType(VectorType::get(Ty, VF)).getValue();
   };
 
   for (unsigned int i = 0, s = IdxToInstr.size(); i < s; ++i) {