Index: lib/Transforms/Instrumentation/AddressSanitizer.cpp
===================================================================
--- lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -1800,6 +1800,7 @@
     RegisteredFlag = new GlobalVariable(
         M, IntptrTy, false, GlobalVariable::CommonLinkage,
         ConstantInt::get(IntptrTy, 0), kAsanGlobalsRegisteredFlagName);
+    RegisteredFlag->setVisibility(GlobalVariable::HiddenVisibility);
 
     // Update llvm.compiler.used, adding the new liveness globals. This is
     // needed so that during LTO these variables stay alive. The alternative