Index: include/llvm/BinaryFormat/Wasm.h
===================================================================
--- include/llvm/BinaryFormat/Wasm.h
+++ include/llvm/BinaryFormat/Wasm.h
@@ -331,6 +331,14 @@
   return !(LHS == RHS);
 }
 
+inline bool operator==(const WasmEventType &LHS, const WasmEventType &RHS) {
+  return LHS.Attribute == RHS.Attribute && LHS.SigIndex == RHS.SigIndex;
+}
+
+inline bool operator!=(const WasmEventType &LHS, const WasmEventType &RHS) {
+  return !(LHS == RHS);
+}
+
 std::string toString(wasm::WasmSymbolType type);
 std::string relocTypetoString(uint32_t type);