Index: llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
===================================================================
--- llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
+++ llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
@@ -1044,7 +1044,7 @@
     }
   }
 
-  return false;
+  return !FnsToInstrument.empty();
 }
 
 Value *DFSanFunction::getArgTLSPtr() {