Eliminate temporary argument vectors.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132260 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 2f4104d..14bebaf 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -164,9 +164,8 @@
   }
   
   // The prototype is something that takes and returns whatever V's type is.
-  std::vector<const llvm::Type*> Args;
-  Args.push_back(V->getType());
-  llvm::FunctionType *FT = llvm::FunctionType::get(V->getType(), Args, false);
+  llvm::FunctionType *FT = llvm::FunctionType::get(V->getType(), V->getType(),
+                                                   false);
   llvm::Value *Fn = CGF.CGM.CreateRuntimeFunction(FT, FnName);
 
   return CGF.Builder.CreateCall(Fn, V, "abs");