Fix a typo in memdep, which was causing PR1648.

llvm-svn: 41833
diff --git a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
index 3072a5c..0400ce3 100644
--- a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
+++ b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
@@ -425,7 +425,7 @@
     reverseDep.erase(rem);
   }
   
-  if (depGraphNonLocal.count(rem)) {
+  if (reverseDepNonLocal.count(rem)) {
     SmallPtrSet<Instruction*, 4>& set = reverseDepNonLocal[rem];
     for (SmallPtrSet<Instruction*, 4>::iterator I = set.begin(), E = set.end();
          I != E; ++I)