diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -5515,7 +5515,6 @@
   // conversions are fine.
   switch (SCS.Second) {
   case ICK_Identity:
-  case ICK_Function_Conversion:
   case ICK_Integral_Promotion:
   case ICK_Integral_Conversion: // Narrowing conversions are checked elsewhere.
   case ICK_Zero_Queue_Conversion:
@@ -5562,6 +5561,7 @@
   case ICK_Function_To_Pointer:
     llvm_unreachable("found a first conversion kind in Second");
 
+  case ICK_Function_Conversion:
   case ICK_Qualification:
     llvm_unreachable("found a third conversion kind in Second");