diff --git a/llvm/lib/CodeGen/TargetSchedule.cpp b/llvm/lib/CodeGen/TargetSchedule.cpp
index ce59b096992d8e..b5db2a671f7d04 100644
--- a/llvm/lib/CodeGen/TargetSchedule.cpp
+++ b/llvm/lib/CodeGen/TargetSchedule.cpp
@@ -129,7 +129,8 @@ resolveSchedClass(const MachineInstr *MI) const {
   unsigned NIter = 0;
 #endif
   while (SCDesc->isVariant()) {
-    assert(++NIter < 6 && "Variants are nested deeper than the magic number");
+    ++NIter;
+    assert(NIter < 6 && "Variants are nested deeper than the magic number");
 
     SchedClass = STI->resolveSchedClass(SchedClass, MI, this);
     SCDesc = SchedModel.getSchedClassDesc(SchedClass);