diff --git a/utils/TableGen/CodeGenDAGPatterns.cpp b/utils/TableGen/CodeGenDAGPatterns.cpp
index 43486880..4ab2f1c 100644
--- a/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -111,7 +111,7 @@
   bool ContainsDefault = false;
   MVT DT = MVT::Other;
 
-  SmallDenseSet<unsigned, 4> Modes;
+  SmallSet<unsigned, 4> Modes;
   for (const auto &P : VVT) {
     unsigned M = P.first;
     Modes.insert(M);
@@ -224,7 +224,7 @@
   if (HaveDefault != VTSHaveDefault)
     return false;
 
-  SmallDenseSet<unsigned, 4> Modes;
+  SmallSet<unsigned, 4> Modes;
   for (auto &I : *this)
     Modes.insert(I.first);
   for (const auto &I : VTS)