diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 390e346..d67e6f6 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -2633,6 +2633,8 @@
   RValue EmitCallExpr(const CallExpr *E,
                       ReturnValueSlot ReturnValue = ReturnValueSlot());
 
+  bool checkBuiltinTargetFeatures(const FunctionDecl *TargetDecl);
+
   llvm::CallInst *EmitRuntimeCall(llvm::Value *callee,
                                   const Twine &name = "");
   llvm::CallInst *EmitRuntimeCall(llvm::Value *callee,