IndVarSimplify: Adpat to IVUsers::AddUsersIfInteresting change.

llvm-svn: 152908
diff --git a/polly/lib/IndVarSimplify.cpp b/polly/lib/IndVarSimplify.cpp
index b8aea71..a9d15cd 100644
--- a/polly/lib/IndVarSimplify.cpp
+++ b/polly/lib/IndVarSimplify.cpp
@@ -447,8 +447,10 @@
   }
 
   // Add a new IVUsers entry for the newly-created integer PHI.
-  if (IU)
-    IU->AddUsersIfInteresting(NewPHI);
+  if (IU) {
+    SmallPtrSet<Loop*,16> SimpleLoopNests;
+    IU->AddUsersIfInteresting(NewPHI, SimpleLoopNests);
+  }
 
   Changed = true;
 }