Index: include/llvm/IR/DomTreeUpdater.h
===================================================================
--- include/llvm/IR/DomTreeUpdater.h
+++ include/llvm/IR/DomTreeUpdater.h
@@ -46,8 +46,8 @@
 
   ~DomTreeUpdater() { flush(); }
 
-  /// Returns the UpdateStrategy of the class instance.
-  UpdateStrategy getUpdateStrategy() const { return Strategy; };
+  /// Returns true if the class instance works under the Lazy UpdateStrategy.
+  bool isUpdateLazy() const { return Strategy == UpdateStrategy::Lazy; };
 
   /// Returns true if it holds a DominatorTree.
   bool hasDomTree() const { return DT != nullptr; }
Index: unittests/IR/DomTreeUpdaterTest.cpp
===================================================================
--- unittests/IR/DomTreeUpdaterTest.cpp
+++ unittests/IR/DomTreeUpdaterTest.cpp
@@ -58,7 +58,7 @@
 
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_TRUE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Eager);
+  ASSERT_FALSE(DTU.isUpdateLazy());
   ASSERT_TRUE(DTU.getDomTree().verify());
   ASSERT_TRUE(DTU.getPostDomTree().verify());
   ASSERT_FALSE(DTU.hasPendingUpdates());
@@ -166,7 +166,7 @@
   DomTreeUpdater DTU(DT, PDT, DomTreeUpdater::UpdateStrategy::Eager);
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_TRUE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Eager);
+  ASSERT_FALSE(DTU.isUpdateLazy());
   ASSERT_TRUE(DT.verify());
   ASSERT_TRUE(PDT.verify());
 
@@ -239,7 +239,7 @@
   DomTreeUpdater DTU(&DT, PDT, DomTreeUpdater::UpdateStrategy::Lazy);
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_FALSE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Lazy);
+  ASSERT_TRUE(DTU.isUpdateLazy());
   ASSERT_TRUE(DTU.getDomTree().verify());
 
   Function::iterator FI = F->begin();
@@ -327,7 +327,7 @@
   DomTreeUpdater DTU(&DT, PDT, DomTreeUpdater::UpdateStrategy::Lazy);
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_FALSE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Lazy);
+  ASSERT_TRUE(DTU.isUpdateLazy());
   ASSERT_TRUE(DTU.getDomTree().verify());
 
   Function::iterator FI = F->begin();
@@ -453,7 +453,7 @@
   DomTreeUpdater DTU(&DT, &PDT, DomTreeUpdater::UpdateStrategy::Lazy);
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_TRUE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Lazy);
+  ASSERT_TRUE(DTU.isUpdateLazy());
   ASSERT_TRUE(DTU.getDomTree().verify());
   ASSERT_TRUE(DTU.getPostDomTree().verify());
 
@@ -535,7 +535,7 @@
   DomTreeUpdater DTU(DT, PDT, DomTreeUpdater::UpdateStrategy::Lazy);
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_TRUE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Lazy);
+  ASSERT_TRUE(DTU.isUpdateLazy());
   ASSERT_TRUE(DTU.getDomTree().verify());
   ASSERT_TRUE(DTU.getPostDomTree().verify());
 
@@ -624,7 +624,7 @@
 
   ASSERT_TRUE(DTU.hasDomTree());
   ASSERT_TRUE(DTU.hasPostDomTree());
-  ASSERT_EQ(DTU.getUpdateStrategy(), DomTreeUpdater::UpdateStrategy::Lazy);
+  ASSERT_TRUE(DTU.isUpdateLazy());
   ASSERT_TRUE(DTU.getDomTree().verify());
   ASSERT_TRUE(DTU.getPostDomTree().verify());
   ASSERT_FALSE(DTU.hasPendingUpdates());