diff --git a/compiler/optimizing/select_generator.cc b/compiler/optimizing/select_generator.cc
index f9acf5a..0d0f7cc 100644
--- a/compiler/optimizing/select_generator.cc
+++ b/compiler/optimizing/select_generator.cc
@@ -90,7 +90,8 @@
   return select_phi;
 }
 
-void HSelectGenerator::Run() {
+bool HSelectGenerator::Run() {
+  bool didSelect = false;
   // Select cache with local allocator.
   ScopedArenaAllocator allocator(graph_->GetArenaStack());
   ScopedArenaSafeMap<HInstruction*, HSelect*> cache(
@@ -211,7 +212,9 @@
     // entry block. Any following blocks would have had the join block
     // as a dominator, and `MergeWith` handles changing that to the
     // entry block.
+    didSelect = true;
   }
+  return didSelect;
 }
 
 }  // namespace art