diff --git a/llvm/lib/ExecutionEngine/JITLink/ELF_i386.cpp b/llvm/lib/ExecutionEngine/JITLink/ELF_i386.cpp
--- a/llvm/lib/ExecutionEngine/JITLink/ELF_i386.cpp
+++ b/llvm/lib/ExecutionEngine/JITLink/ELF_i386.cpp
@@ -189,6 +189,11 @@
       Addend = *(const support::ulittle32_t *)FixupContent;
       break;
     }
+    default:
+      LLVM_DEBUG({
+        dbgs() << "i386 relocation kind: [" << *Kind
+               << "] requires no implicit addend.";
+      });
     }
 
     Edge::OffsetT Offset = FixupAddress - BlockToFix.getAddress();