[NFC] Make Type::isVectorTy call isa<VectorType>

Reviewers: sdesmalen, efriedma, dexonsmith

Reviewed By: efriedma

Subscribers: tschuett, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77425

Author: christetreault-llvm

llvm/include/llvm/IR/DerivedTypes.h

@@ -543,6 +543,8 @@ ElementCount Type::getVectorElementCount() const {
   return cast<VectorType>(this)->getElementCount();
 }
 
+bool Type::isVectorTy() const { return isa<VectorType>(this); }
+
 /// Class to represent pointers.
 class PointerType : public Type {
   explicit PointerType(Type *ElType, unsigned AddrSpace);

llvm/include/llvm/IR/Type.h

@@ -223,7 +223,7 @@ class Type {
   bool isPtrOrPtrVectorTy() const { return getScalarType()->isPointerTy(); }
 
   /// True if this is an instance of VectorType.
-  bool isVectorTy() const { return getTypeID() == VectorTyID; }
+  inline bool isVectorTy() const;
 
   /// Return true if this type could be converted with a lossless BitCast to
   /// type 'Ty'. For example, i8* to i32*. BitCasts are valid for types of the