diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
index a53e24a..4e0f7cf 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
@@ -24,8 +24,16 @@
 enum NodeType : unsigned {
   FIRST_NUMBER = ISD::BUILTIN_OP_END,
 #define HANDLE_NODETYPE(NODE) NODE,
+#define HANDLE_MEM_NODETYPE(NODE)
+#include "WebAssemblyISD.def"
+  FIRST_MEM_OPCODE = ISD::FIRST_TARGET_MEMORY_OPCODE,
+#undef HANDLE_NODETYPE
+#undef HANDLE_MEM_NODETYPE
+#define HANDLE_NODETYPE(NODE)
+#define HANDLE_MEM_NODETYPE(NODE) NODE,
 #include "WebAssemblyISD.def"
 #undef HANDLE_NODETYPE
+#undef HANDLE_MEM_NODETYPE
 };
 
 } // end namespace WebAssemblyISD