1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/unittests/ADT/DenseSetTest.cpp b/llvm/unittests/ADT/DenseSetTest.cpp
index 4d5a82902f0..4b159744eba 100644
--- a/llvm/unittests/ADT/DenseSetTest.cpp
+++ b/llvm/unittests/ADT/DenseSetTest.cpp
@@ -73,6 +73,15 @@ TYPED_TEST(DenseSetTest, InitializerList) {
   EXPECT_EQ(0u, set.count(3));
 }
 
+TYPED_TEST(DenseSetTest, ConstIteratorComparison){
+  TypeParam set({1});
+  const TypeParam &cset = set;
+  EXPECT_EQ(set.begin(), cset.begin());
+  EXPECT_EQ(set.end(), cset.end());
+  EXPECT_NE(set.end(), cset.begin());
+  EXPECT_NE(set.begin(), cset.end());
+}
+
 TYPED_TEST(DenseSetTest, EmptyInitializerList) {
   TypeParam set({});
   EXPECT_EQ(0u, set.size());