1 files changed, 2 insertions, 4 deletions
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 9b96a59aec3..c7c61e0c8ec 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -393,15 +393,13 @@ CodeGenTypes::arrangeFunctionDeclaration(const FunctionDecl *FD) {
 
   // When declaring a function without a prototype, always use a
   // non-variadic type.
-  if (isa<FunctionNoProtoType>(FTy)) {
-    CanQual<FunctionNoProtoType> noProto = FTy.getAs<FunctionNoProtoType>();
+  if (CanQual<FunctionNoProtoType> noProto = FTy.getAs<FunctionNoProtoType>()) {
     return arrangeLLVMFunctionInfo(
         noProto->getReturnType(), /*instanceMethod=*/false,
         /*chainCall=*/false, None, noProto->getExtInfo(), {},RequiredArgs::All);
   }
 
-  assert(isa<FunctionProtoType>(FTy));
-  return arrangeFreeFunctionType(FTy.getAs<FunctionProtoType>(), FD);
+  return arrangeFreeFunctionType(FTy.castAs<FunctionProtoType>(), FD);
 }
 
 /// Arrange the argument and result information for the declaration or