Fixed a careless mistake.

rdar://13273675.

llvm-svn: 175939
diff --git a/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp b/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
index 7f66b1c..9c14949 100644
--- a/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
+++ b/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
@@ -218,7 +218,7 @@
         if (isa<BitCastInst>(UUser) || isa<GetElementPtrInst>(UUser) ||
             isa<PHINode>(UUser) || isa<SelectInst>(UUser)) {
 
-          if (!VisitedSet.insert(UUser)) {
+          if (VisitedSet.insert(UUser)) {
             DEBUG(dbgs() << "DoesRetainableObjPtrEscape: User copies value. "
                   "Ptr escapes if result escapes. Adding to list.\n");
             Worklist.push_back(UUser);