Index: llvm/lib/ExecutionEngine/JITLink/JITLink.cpp
===================================================================
--- llvm/lib/ExecutionEngine/JITLink/JITLink.cpp
+++ llvm/lib/ExecutionEngine/JITLink/JITLink.cpp
@@ -74,6 +74,7 @@
   case Linkage::Weak:
     return "weak";
   }
+  llvm_unreachable("Unrecognized linkage");
 }
 
 const char *getScopeName(Scope S) {
@@ -85,6 +86,7 @@
   case Scope::Local:
     return "local";
   }
+  llvm_unreachable("Unrecognized scope");
 }
 
 raw_ostream &operator<<(raw_ostream &OS, const Block &B) {
Index: llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
===================================================================
--- llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
+++ llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
@@ -107,7 +107,7 @@
                      uint8_t Sect, uint16_t Desc, Linkage L, Scope S)
         : Name(Name), Value(Value), Type(Type), Sect(Sect), Desc(Desc), L(L),
           S(S) {
-      assert(!Name || !Name->empty() && "Name must be none or non-empty");
+      assert((!Name || !Name->empty()) && "Name must be none or non-empty");
     }
 
   public: