r291264 - Clean up redundant isa<T> before getAs<T>. NFC.

[George Burgess IV via cfe-commits]

Author: gbiv
Date: Fri Jan  6 13:10:48 2017
New Revision: 291264

URL: http://llvm.org/viewvc/llvm-project?rev=291264&view=rev
Log:
Clean up redundant isa<T> before getAs<T>. NFC.

Modified:
    cfe/trunk/lib/CodeGen/CGCall.cpp

Modified: cfe/trunk/lib/CodeGen/CGCall.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCall.cpp?rev=291264&r1=291263&r2=291264&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGCall.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGCall.cpp Fri Jan  6 13:10:48 2017
@@ -393,15 +393,13 @@ CodeGenTypes::arrangeFunctionDeclaration
 
   // 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