diff --git a/llvm/include/llvm/IR/DerivedTypes.h b/llvm/include/llvm/IR/DerivedTypes.h
--- a/llvm/include/llvm/IR/DerivedTypes.h
+++ b/llvm/include/llvm/IR/DerivedTypes.h
@@ -519,9 +519,8 @@
   /// input type and the same element type.
   static VectorType *getDoubleElementsVectorType(VectorType *VTy) {
     auto EltCnt = VTy->getElementCount();
-    assert((VTy->getNumElements() * 2ull) <= UINT_MAX &&
-           "Too many elements in vector");
-    return VectorType::get(VTy->getElementType(), EltCnt*2);
+    assert((EltCnt.Min * 2ull) <= UINT_MAX && "Too many elements in vector");
+    return VectorType::get(VTy->getElementType(), EltCnt * 2);
   }
 
   /// Return true if the specified type is valid as a element type.
diff --git a/llvm/unittests/IR/VectorTypesTest.cpp b/llvm/unittests/IR/VectorTypesTest.cpp
--- a/llvm/unittests/IR/VectorTypesTest.cpp
+++ b/llvm/unittests/IR/VectorTypesTest.cpp
@@ -14,72 +14,110 @@
 using namespace llvm;
 
 namespace {
+
+#define EXPECT_VTY_EQ(LHS, RHS)                                                \
+  ASSERT_NE(LHS, nullptr) << #LHS << " must not be null";                      \
+  ASSERT_NE(RHS, nullptr) << #RHS << " must not be null";                      \
+  EXPECT_EQ(LHS, RHS) << "Expect that " << #LHS << " == " << #RHS << " where " \
+                      << #LHS << " = " << *LHS << " and " << #RHS << " = "     \
+                      << *RHS;
+
+#define EXPECT_VTY_NE(LHS, RHS)                                                \
+  ASSERT_NE(LHS, nullptr) << #LHS << " must not be null";                      \
+  ASSERT_NE(RHS, nullptr) << #RHS << " must not be null";                      \
+  EXPECT_NE(LHS, RHS) << "Expect that " << #LHS << " != " << #RHS << " where " \
+                      << #LHS << " = " << *LHS << " and " << #RHS << " = "     \
+                      << *RHS;
+
 TEST(VectorTypesTest, FixedLength) {
   LLVMContext Ctx;
 
+  Type *Int8Ty = Type::getInt8Ty(Ctx);
   Type *Int16Ty = Type::getInt16Ty(Ctx);
   Type *Int32Ty = Type::getInt32Ty(Ctx);
   Type *Int64Ty = Type::getInt64Ty(Ctx);
   Type *Float64Ty = Type::getDoubleTy(Ctx);
 
-  VectorType *V8Int32Ty = VectorType::get(Int32Ty, 8);
-  ASSERT_TRUE(isa<FixedVectorType>(V8Int32Ty));
+  auto *V16Int8Ty = FixedVectorType::get(Int8Ty, 16);
+  ASSERT_NE(nullptr, V16Int8Ty);
+  EXPECT_EQ(V16Int8Ty->getNumElements(), 16U);
+  EXPECT_EQ(V16Int8Ty->getElementType()->getScalarSizeInBits(), 8U);
+
+  auto *V8Int32Ty = dyn_cast<FixedVectorType>(VectorType::get(Int32Ty, 8));
+  ASSERT_NE(nullptr, V8Int32Ty);
   EXPECT_EQ(V8Int32Ty->getNumElements(), 8U);
   EXPECT_EQ(V8Int32Ty->getElementType()->getScalarSizeInBits(), 32U);
 
-  VectorType *V8Int16Ty = VectorType::get(Int16Ty, {8, false});
-  ASSERT_TRUE(isa<FixedVectorType>(V8Int16Ty));
+  auto *V8Int32TyExplicitFalse =
+      dyn_cast<FixedVectorType>(VectorType::get(Int32Ty, 8, false));
+  EXPECT_VTY_EQ(V8Int32Ty, V8Int32TyExplicitFalse);
+
+  auto *V8Int8Ty =
+      dyn_cast<FixedVectorType>(VectorType::get(Int8Ty, V8Int32Ty));
+  EXPECT_VTY_NE(V8Int32Ty, V8Int8Ty);
+  EXPECT_EQ(V8Int8Ty->getElementCount(), V8Int32Ty->getElementCount());
+  EXPECT_EQ(V8Int8Ty->getElementType()->getScalarSizeInBits(), 8U);
+
+  auto *V8Int32Ty2 =
+      dyn_cast<FixedVectorType>(VectorType::get(Int32Ty, V8Int32Ty));
+  EXPECT_VTY_EQ(V8Int32Ty, V8Int32Ty2);
+
+  auto *V8Int16Ty =
+      dyn_cast<FixedVectorType>(VectorType::get(Int16Ty, {8, false}));
+  ASSERT_NE(nullptr, V8Int16Ty);
   EXPECT_EQ(V8Int16Ty->getNumElements(), 8U);
   EXPECT_EQ(V8Int16Ty->getElementType()->getScalarSizeInBits(), 16U);
 
   ElementCount EltCnt(4, false);
-  VectorType *V4Int64Ty = VectorType::get(Int64Ty, EltCnt);
-  ASSERT_TRUE(isa<FixedVectorType>(V4Int64Ty));
+  auto *V4Int64Ty = dyn_cast<FixedVectorType>(VectorType::get(Int64Ty, EltCnt));
+  ASSERT_NE(nullptr, V4Int64Ty);
   EXPECT_EQ(V4Int64Ty->getNumElements(), 4U);
   EXPECT_EQ(V4Int64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *V2Int64Ty = VectorType::get(Int64Ty, EltCnt/2);
-  ASSERT_TRUE(isa<FixedVectorType>(V2Int64Ty));
+  auto *V2Int64Ty =
+      dyn_cast<FixedVectorType>(VectorType::get(Int64Ty, EltCnt / 2));
+  ASSERT_NE(nullptr, V2Int64Ty);
   EXPECT_EQ(V2Int64Ty->getNumElements(), 2U);
   EXPECT_EQ(V2Int64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *V8Int64Ty = VectorType::get(Int64Ty, EltCnt*2);
-  ASSERT_TRUE(isa<FixedVectorType>(V8Int64Ty));
+  auto *V8Int64Ty =
+      dyn_cast<FixedVectorType>(VectorType::get(Int64Ty, EltCnt * 2));
+  ASSERT_NE(nullptr, V8Int64Ty);
   EXPECT_EQ(V8Int64Ty->getNumElements(), 8U);
   EXPECT_EQ(V8Int64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *V4Float64Ty = VectorType::get(Float64Ty, EltCnt);
-  ASSERT_TRUE(isa<FixedVectorType>(V4Float64Ty));
+  auto *V4Float64Ty =
+      dyn_cast<FixedVectorType>(VectorType::get(Float64Ty, EltCnt));
+  ASSERT_NE(nullptr, V4Float64Ty);
   EXPECT_EQ(V4Float64Ty->getNumElements(), 4U);
   EXPECT_EQ(V4Float64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ExtTy = VectorType::getExtendedElementVectorType(V8Int16Ty);
-  EXPECT_EQ(ExtTy, V8Int32Ty);
-  ASSERT_TRUE(isa<FixedVectorType>(ExtTy));
+  auto *ExtTy = dyn_cast<FixedVectorType>(
+      VectorType::getExtendedElementVectorType(V8Int16Ty));
+  EXPECT_VTY_EQ(ExtTy, V8Int32Ty);
   EXPECT_EQ(ExtTy->getNumElements(), 8U);
   EXPECT_EQ(ExtTy->getElementType()->getScalarSizeInBits(), 32U);
 
-  VectorType *TruncTy = VectorType::getTruncatedElementVectorType(V8Int32Ty);
-  EXPECT_EQ(TruncTy, V8Int16Ty);
-  ASSERT_TRUE(isa<FixedVectorType>(TruncTy));
+  auto *TruncTy = dyn_cast<FixedVectorType>(
+      VectorType::getTruncatedElementVectorType(V8Int32Ty));
+  EXPECT_VTY_EQ(TruncTy, V8Int16Ty);
   EXPECT_EQ(TruncTy->getNumElements(), 8U);
   EXPECT_EQ(TruncTy->getElementType()->getScalarSizeInBits(), 16U);
 
-  VectorType *HalvedTy = VectorType::getHalfElementsVectorType(V4Int64Ty);
-  EXPECT_EQ(HalvedTy, V2Int64Ty);
-  ASSERT_TRUE(isa<FixedVectorType>(HalvedTy));
+  auto *HalvedTy = dyn_cast<FixedVectorType>(
+      VectorType::getHalfElementsVectorType(V4Int64Ty));
+  EXPECT_VTY_EQ(HalvedTy, V2Int64Ty);
   EXPECT_EQ(HalvedTy->getNumElements(), 2U);
   EXPECT_EQ(HalvedTy->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *DoubledTy = VectorType::getDoubleElementsVectorType(V4Int64Ty);
-  EXPECT_EQ(DoubledTy, V8Int64Ty);
-  ASSERT_TRUE(isa<FixedVectorType>(DoubledTy));
+  auto *DoubledTy = dyn_cast<FixedVectorType>(
+      VectorType::getDoubleElementsVectorType(V4Int64Ty));
+  EXPECT_VTY_EQ(DoubledTy, V8Int64Ty);
   EXPECT_EQ(DoubledTy->getNumElements(), 8U);
   EXPECT_EQ(DoubledTy->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ConvTy = VectorType::getInteger(V4Float64Ty);
-  EXPECT_EQ(ConvTy, V4Int64Ty);
-  ASSERT_TRUE(isa<FixedVectorType>(ConvTy));
+  auto *ConvTy = dyn_cast<FixedVectorType>(VectorType::getInteger(V4Float64Ty));
+  EXPECT_VTY_EQ(ConvTy, V4Int64Ty);
   EXPECT_EQ(ConvTy->getNumElements(), 4U);
   EXPECT_EQ(ConvTy->getElementType()->getScalarSizeInBits(), 64U);
 
@@ -91,70 +129,92 @@
 TEST(VectorTypesTest, Scalable) {
   LLVMContext Ctx;
 
+  Type *Int8Ty = Type::getInt8Ty(Ctx);
   Type *Int16Ty = Type::getInt16Ty(Ctx);
   Type *Int32Ty = Type::getInt32Ty(Ctx);
   Type *Int64Ty = Type::getInt64Ty(Ctx);
   Type *Float64Ty = Type::getDoubleTy(Ctx);
 
-  VectorType *ScV8Int32Ty = VectorType::get(Int32Ty, 8, true);
-  ASSERT_TRUE(isa<ScalableVectorType>(ScV8Int32Ty));
-  EXPECT_EQ(ScV8Int32Ty->getNumElements(), 8U);
+  auto *ScV16Int8Ty = ScalableVectorType::get(Int8Ty, 16);
+  ASSERT_NE(nullptr, ScV16Int8Ty);
+  EXPECT_EQ(ScV16Int8Ty->getMinNumElements(), 16U);
+  EXPECT_EQ(ScV16Int8Ty->getScalarSizeInBits(), 8U);
+
+  auto *ScV8Int32Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int32Ty, 8, true));
+  ASSERT_NE(nullptr, ScV8Int32Ty);
+  EXPECT_EQ(ScV8Int32Ty->getMinNumElements(), 8U);
   EXPECT_EQ(ScV8Int32Ty->getElementType()->getScalarSizeInBits(), 32U);
 
-  VectorType *ScV8Int16Ty = VectorType::get(Int16Ty, {8, true});
-  ASSERT_TRUE(isa<ScalableVectorType>(ScV8Int16Ty));
-  EXPECT_EQ(ScV8Int16Ty->getNumElements(), 8U);
+  auto *ScV8Int8Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int8Ty, ScV8Int32Ty));
+  EXPECT_VTY_NE(ScV8Int32Ty, ScV8Int8Ty);
+  EXPECT_EQ(ScV8Int8Ty->getElementCount(), ScV8Int32Ty->getElementCount());
+  EXPECT_EQ(ScV8Int8Ty->getElementType()->getScalarSizeInBits(), 8U);
+
+  auto *ScV8Int32Ty2 =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int32Ty, ScV8Int32Ty));
+  EXPECT_VTY_EQ(ScV8Int32Ty, ScV8Int32Ty2);
+
+  auto *ScV8Int16Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int16Ty, {8, true}));
+  ASSERT_NE(nullptr, ScV8Int16Ty);
+  EXPECT_EQ(ScV8Int16Ty->getMinNumElements(), 8U);
   EXPECT_EQ(ScV8Int16Ty->getElementType()->getScalarSizeInBits(), 16U);
 
   ElementCount EltCnt(4, true);
-  VectorType *ScV4Int64Ty = VectorType::get(Int64Ty, EltCnt);
-  ASSERT_TRUE(isa<ScalableVectorType>(ScV4Int64Ty));
-  EXPECT_EQ(ScV4Int64Ty->getNumElements(), 4U);
+  auto *ScV4Int64Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int64Ty, EltCnt));
+  ASSERT_NE(nullptr, ScV4Int64Ty);
+  EXPECT_EQ(ScV4Int64Ty->getMinNumElements(), 4U);
   EXPECT_EQ(ScV4Int64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ScV2Int64Ty = VectorType::get(Int64Ty, EltCnt/2);
-  ASSERT_TRUE(isa<ScalableVectorType>(ScV2Int64Ty));
-  EXPECT_EQ(ScV2Int64Ty->getNumElements(), 2U);
+  auto *ScV2Int64Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int64Ty, EltCnt / 2));
+  ASSERT_NE(nullptr, ScV2Int64Ty);
+  EXPECT_EQ(ScV2Int64Ty->getMinNumElements(), 2U);
   EXPECT_EQ(ScV2Int64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ScV8Int64Ty = VectorType::get(Int64Ty, EltCnt*2);
-  ASSERT_TRUE(isa<ScalableVectorType>(ScV8Int64Ty));
-  EXPECT_EQ(ScV8Int64Ty->getNumElements(), 8U);
+  auto *ScV8Int64Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Int64Ty, EltCnt * 2));
+  ASSERT_NE(nullptr, ScV8Int64Ty);
+  EXPECT_EQ(ScV8Int64Ty->getMinNumElements(), 8U);
   EXPECT_EQ(ScV8Int64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ScV4Float64Ty = VectorType::get(Float64Ty, EltCnt);
-  ASSERT_TRUE(isa<ScalableVectorType>(ScV4Float64Ty));
-  EXPECT_EQ(ScV4Float64Ty->getNumElements(), 4U);
+  auto *ScV4Float64Ty =
+      dyn_cast<ScalableVectorType>(VectorType::get(Float64Ty, EltCnt));
+  ASSERT_NE(nullptr, ScV4Float64Ty);
+  EXPECT_EQ(ScV4Float64Ty->getMinNumElements(), 4U);
   EXPECT_EQ(ScV4Float64Ty->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ExtTy = VectorType::getExtendedElementVectorType(ScV8Int16Ty);
-  EXPECT_EQ(ExtTy, ScV8Int32Ty);
-  ASSERT_TRUE(isa<ScalableVectorType>(ExtTy));
-  EXPECT_EQ(ExtTy->getNumElements(), 8U);
+  auto *ExtTy = dyn_cast<ScalableVectorType>(
+      VectorType::getExtendedElementVectorType(ScV8Int16Ty));
+  EXPECT_VTY_EQ(ExtTy, ScV8Int32Ty);
+  EXPECT_EQ(ExtTy->getMinNumElements(), 8U);
   EXPECT_EQ(ExtTy->getElementType()->getScalarSizeInBits(), 32U);
 
-  VectorType *TruncTy = VectorType::getTruncatedElementVectorType(ScV8Int32Ty);
-  EXPECT_EQ(TruncTy, ScV8Int16Ty);
-  ASSERT_TRUE(isa<ScalableVectorType>(TruncTy));
-  EXPECT_EQ(TruncTy->getNumElements(), 8U);
+  auto *TruncTy = dyn_cast<ScalableVectorType>(
+      VectorType::getTruncatedElementVectorType(ScV8Int32Ty));
+  EXPECT_VTY_EQ(TruncTy, ScV8Int16Ty);
+  EXPECT_EQ(TruncTy->getMinNumElements(), 8U);
   EXPECT_EQ(TruncTy->getElementType()->getScalarSizeInBits(), 16U);
 
-  VectorType *HalvedTy = VectorType::getHalfElementsVectorType(ScV4Int64Ty);
-  EXPECT_EQ(HalvedTy, ScV2Int64Ty);
-  ASSERT_TRUE(isa<ScalableVectorType>(HalvedTy));
-  EXPECT_EQ(HalvedTy->getNumElements(), 2U);
+  auto *HalvedTy = dyn_cast<ScalableVectorType>(
+      VectorType::getHalfElementsVectorType(ScV4Int64Ty));
+  EXPECT_VTY_EQ(HalvedTy, ScV2Int64Ty);
+  EXPECT_EQ(HalvedTy->getMinNumElements(), 2U);
   EXPECT_EQ(HalvedTy->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *DoubledTy = VectorType::getDoubleElementsVectorType(ScV4Int64Ty);
-  EXPECT_EQ(DoubledTy, ScV8Int64Ty);
-  ASSERT_TRUE(isa<ScalableVectorType>(DoubledTy));
-  EXPECT_EQ(DoubledTy->getNumElements(), 8U);
+  auto *DoubledTy = dyn_cast<ScalableVectorType>(
+      VectorType::getDoubleElementsVectorType(ScV4Int64Ty));
+  EXPECT_VTY_EQ(DoubledTy, ScV8Int64Ty);
+  EXPECT_EQ(DoubledTy->getMinNumElements(), 8U);
   EXPECT_EQ(DoubledTy->getElementType()->getScalarSizeInBits(), 64U);
 
-  VectorType *ConvTy = VectorType::getInteger(ScV4Float64Ty);
-  EXPECT_EQ(ConvTy, ScV4Int64Ty);
-  ASSERT_TRUE(isa<ScalableVectorType>(ConvTy));
-  EXPECT_EQ(ConvTy->getNumElements(), 4U);
+  auto *ConvTy =
+      dyn_cast<ScalableVectorType>(VectorType::getInteger(ScV4Float64Ty));
+  EXPECT_VTY_EQ(ConvTy, ScV4Int64Ty);
+  EXPECT_EQ(ConvTy->getMinNumElements(), 4U);
   EXPECT_EQ(ConvTy->getElementType()->getScalarSizeInBits(), 64U);
 
   EltCnt = ScV8Int64Ty->getElementCount();
@@ -162,6 +222,57 @@
   ASSERT_TRUE(EltCnt.Scalable);
 }
 
+TEST(VectorTypesTest, BaseVectorType) {
+  LLVMContext Ctx;
+
+  Type *Int16Ty = Type::getInt16Ty(Ctx);
+  Type *Int32Ty = Type::getInt32Ty(Ctx);
+
+  std::array<VectorType *, 8> VTys = {VectorType::get(Int16Ty, {4, true}),
+                                      VectorType::get(Int16Ty, {4, false}),
+                                      VectorType::get(Int16Ty, {2, true}),
+                                      VectorType::get(Int16Ty, {2, false}),
+                                      VectorType::get(Int32Ty, {4, true}),
+                                      VectorType::get(Int32Ty, {4, false}),
+                                      VectorType::get(Int32Ty, {2, true}),
+                                      VectorType::get(Int32Ty, {2, false})};
+
+  /*
+    The comparison matrix is symmetric, so we only check the upper triangle:
+
+    (0,0) (0,1) (0,2) ... (0,7)
+    (1,0) (1,1) (1,2)         .
+    (2,0) (2,1) (2,2)         .
+    .                 .       .
+    .                  .
+    .                   .
+    (7,0) ...             (7,7)
+  */
+  for (size_t I = 0, IEnd = VTys.size(); I < IEnd; ++I) {
+    // test I == J
+    VectorType *VI = VTys[I];
+    ElementCount ECI = VI->getElementCount();
+    EXPECT_EQ(isa<ScalableVectorType>(VI), ECI.Scalable);
+
+    for (size_t J = I + 1, JEnd = VTys.size(); J < JEnd; ++J) {
+      // test I < J
+      VectorType *VJ = VTys[J];
+      ElementCount ECJ = VJ->getElementCount();
+      EXPECT_VTY_NE(VI, VJ);
+
+      VectorType *VJPrime = VectorType::get(VI->getElementType(), VJ);
+      if (VI->getElementType() == VJ->getElementType()) {
+        EXPECT_VTY_EQ(VJ, VJPrime);
+      } else {
+        EXPECT_VTY_NE(VJ, VJPrime);
+      }
+
+      EXPECT_EQ(VJ->getTypeID(), VJPrime->getTypeID())
+          << "VJ and VJPrime are the same sort of vector";
+    }
+  }
+}
+
 TEST(VectorTypesTest, FixedLenComparisons) {
   LLVMContext Ctx;
   DataLayout DL("");
@@ -169,10 +280,10 @@
   Type *Int32Ty = Type::getInt32Ty(Ctx);
   Type *Int64Ty = Type::getInt64Ty(Ctx);
 
-  VectorType *V2Int32Ty = VectorType::get(Int32Ty, 2);
-  VectorType *V4Int32Ty = VectorType::get(Int32Ty, 4);
+  auto *V2Int32Ty = FixedVectorType::get(Int32Ty, 2);
+  auto *V4Int32Ty = FixedVectorType::get(Int32Ty, 4);
 
-  VectorType *V2Int64Ty = VectorType::get(Int64Ty, 2);
+  auto *V2Int64Ty = FixedVectorType::get(Int64Ty, 2);
 
   TypeSize V2I32Len = V2Int32Ty->getPrimitiveSizeInBits();
   EXPECT_EQ(V2I32Len.getKnownMinSize(), 64U);
@@ -192,18 +303,15 @@
             V4Int32Ty->getPrimitiveSizeInBits().getFixedSize());
 
   // Check the DataLayout interfaces.
-  EXPECT_EQ(DL.getTypeSizeInBits(V2Int64Ty),
-            DL.getTypeSizeInBits(V4Int32Ty));
+  EXPECT_EQ(DL.getTypeSizeInBits(V2Int64Ty), DL.getTypeSizeInBits(V4Int32Ty));
   EXPECT_EQ(DL.getTypeSizeInBits(V2Int32Ty), 64U);
   EXPECT_EQ(DL.getTypeSizeInBits(V2Int64Ty), 128U);
-  EXPECT_EQ(DL.getTypeStoreSize(V2Int64Ty),
-            DL.getTypeStoreSize(V4Int32Ty));
+  EXPECT_EQ(DL.getTypeStoreSize(V2Int64Ty), DL.getTypeStoreSize(V4Int32Ty));
   EXPECT_NE(DL.getTypeStoreSizeInBits(V2Int32Ty),
             DL.getTypeStoreSizeInBits(V2Int64Ty));
   EXPECT_EQ(DL.getTypeStoreSizeInBits(V2Int32Ty), 64U);
   EXPECT_EQ(DL.getTypeStoreSize(V2Int64Ty), 16U);
-  EXPECT_EQ(DL.getTypeAllocSize(V4Int32Ty),
-            DL.getTypeAllocSize(V2Int64Ty));
+  EXPECT_EQ(DL.getTypeAllocSize(V4Int32Ty), DL.getTypeAllocSize(V2Int64Ty));
   EXPECT_NE(DL.getTypeAllocSizeInBits(V2Int32Ty),
             DL.getTypeAllocSizeInBits(V2Int64Ty));
   EXPECT_EQ(DL.getTypeAllocSizeInBits(V4Int32Ty), 128U);
@@ -218,10 +326,10 @@
   Type *Int32Ty = Type::getInt32Ty(Ctx);
   Type *Int64Ty = Type::getInt64Ty(Ctx);
 
-  VectorType *ScV2Int32Ty = VectorType::get(Int32Ty, {2, true});
-  VectorType *ScV4Int32Ty = VectorType::get(Int32Ty, {4, true});
+  auto *ScV2Int32Ty = ScalableVectorType::get(Int32Ty, 2);
+  auto *ScV4Int32Ty = ScalableVectorType::get(Int32Ty, 4);
 
-  VectorType *ScV2Int64Ty = VectorType::get(Int64Ty, {2, true});
+  auto *ScV2Int64Ty = ScalableVectorType::get(Int64Ty, 2);
 
   TypeSize ScV2I32Len = ScV2Int32Ty->getPrimitiveSizeInBits();
   EXPECT_EQ(ScV2I32Len.getKnownMinSize(), 64U);
@@ -240,14 +348,12 @@
   EXPECT_EQ(DL.getTypeSizeInBits(ScV2Int64Ty),
             DL.getTypeSizeInBits(ScV4Int32Ty));
   EXPECT_EQ(DL.getTypeSizeInBits(ScV2Int32Ty).getKnownMinSize(), 64U);
-  EXPECT_EQ(DL.getTypeStoreSize(ScV2Int64Ty),
-            DL.getTypeStoreSize(ScV4Int32Ty));
+  EXPECT_EQ(DL.getTypeStoreSize(ScV2Int64Ty), DL.getTypeStoreSize(ScV4Int32Ty));
   EXPECT_NE(DL.getTypeStoreSizeInBits(ScV2Int32Ty),
             DL.getTypeStoreSizeInBits(ScV2Int64Ty));
   EXPECT_EQ(DL.getTypeStoreSizeInBits(ScV2Int32Ty).getKnownMinSize(), 64U);
   EXPECT_EQ(DL.getTypeStoreSize(ScV2Int64Ty).getKnownMinSize(), 16U);
-  EXPECT_EQ(DL.getTypeAllocSize(ScV4Int32Ty),
-            DL.getTypeAllocSize(ScV2Int64Ty));
+  EXPECT_EQ(DL.getTypeAllocSize(ScV4Int32Ty), DL.getTypeAllocSize(ScV2Int64Ty));
   EXPECT_NE(DL.getTypeAllocSizeInBits(ScV2Int32Ty),
             DL.getTypeAllocSizeInBits(ScV2Int64Ty));
   EXPECT_EQ(DL.getTypeAllocSizeInBits(ScV4Int32Ty).getKnownMinSize(), 128U);
@@ -260,8 +366,8 @@
 
   Type *Int32Ty = Type::getInt32Ty(Ctx);
 
-  VectorType *V4Int32Ty = VectorType::get(Int32Ty, {4, false});
-  VectorType *ScV4Int32Ty = VectorType::get(Int32Ty, {4, true});
+  auto *V4Int32Ty = FixedVectorType::get(Int32Ty, 4);
+  auto *ScV4Int32Ty = ScalableVectorType::get(Int32Ty, 4);
 
   // Even though the minimum size is the same, a scalable vector could be
   // larger so we don't consider them to be the same size.