Index: clang/lib/Sema/SemaType.cpp
===================================================================
--- clang/lib/Sema/SemaType.cpp
+++ clang/lib/Sema/SemaType.cpp
@@ -8331,7 +8331,7 @@
   unsigned VecSize = static_cast<unsigned>(RVVVectorSizeInBits.getZExtValue());
 
   ASTContext::BuiltinVectorTypeInfo Info =
-      S.Context.getBuiltinVectorTypeInfo(CurType->getAs<BuiltinType>());
+      S.Context.getBuiltinVectorTypeInfo(CurType->castAs<BuiltinType>());
   unsigned EltSize = S.Context.getTypeSize(Info.ElementType);
   unsigned MinElts = Info.EC.getKnownMinValue();