diff --git a/utils/TableGen/CodeGenSchedule.cpp b/utils/TableGen/CodeGenSchedule.cpp
index a8c9392be71..63cc97a8c1d 100644
--- a/utils/TableGen/CodeGenSchedule.cpp
+++ b/utils/TableGen/CodeGenSchedule.cpp
@@ -1591,7 +1591,7 @@ unsigned CodeGenProcModel::getProcResourceIdx(Record *PRDef) const {
     PrintFatalError(PRDef->getLoc(), "ProcResource def is not included in "
                     "the ProcResources list for " + ModelName);
   // Idx=0 is reserved for invalid.
-  return 1 + PRPos - ProcResourceDefs.begin();
+  return 1 + (PRPos - ProcResourceDefs.begin());
 }
 
 #ifndef NDEBUG
diff --git a/utils/TableGen/SubtargetEmitter.cpp b/utils/TableGen/SubtargetEmitter.cpp
index 806bda1cbc3..f1a06bb5288 100644
--- a/utils/TableGen/SubtargetEmitter.cpp
+++ b/utils/TableGen/SubtargetEmitter.cpp
@@ -1053,7 +1053,7 @@ void SubtargetEmitter::EmitSchedClassTables(SchedClassTables &SchedTables,
       continue;
 
     std::vector<MCSchedClassDesc> &SCTab =
-      SchedTables.ProcSchedClasses[1 + PI - SchedModels.procModelBegin()];
+      SchedTables.ProcSchedClasses[1 + (PI - SchedModels.procModelBegin())];
 
     OS << "\n// {Name, NumMicroOps, BeginGroup, EndGroup,"
        << " WriteProcResIdx,#, WriteLatencyIdx,#, ReadAdvanceIdx,#}\n";