diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index 2321329..3721c99 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -1906,7 +1906,7 @@
   // the Values cannot come from different iterations of a potential cycle the
   // phi nodes could be involved in.
   for (auto *P : VisitedPhiBBs)
-    if (isPotentiallyReachable(&P->front(), Inst, DT, LI))
+    if (isPotentiallyReachable(&P->front(), Inst, nullptr, DT, LI))
       return false;
 
   return true;