Index: llvm/utils/TableGen/CodeGenSchedule.cpp
===================================================================
--- llvm/utils/TableGen/CodeGenSchedule.cpp
+++ llvm/utils/TableGen/CodeGenSchedule.cpp
@@ -1973,7 +1973,6 @@
 
 void CodeGenSchedModels::checkCompleteness() {
   bool Complete = true;
-  bool HadCompleteModel = false;
   for (const CodeGenProcModel &ProcModel : procModels()) {
     const bool HasItineraries = ProcModel.hasItineraries();
     if (!ProcModel.ModelDef->getValueAsBit("CompleteModel"))
@@ -1985,7 +1984,7 @@
         continue;
       unsigned SCIdx = getSchedClassIdx(*Inst);
       if (!SCIdx) {
-        if (Inst->TheDef->isValueUnset("SchedRW") && !HadCompleteModel) {
+        if (Inst->TheDef->isValueUnset("SchedRW")) {
           PrintError(Inst->TheDef->getLoc(),
                      "No schedule information for instruction '" +
                          Inst->TheDef->getName() + "' in SchedMachineModel '" +
@@ -2013,7 +2012,6 @@
         Complete = false;
       }
     }
-    HadCompleteModel = true;
   }
   if (!Complete) {
     errs() << "\n\nIncomplete schedule models found.\n"