The tarjan iterator now returns a reference to the current SCC, not a possibly null pointer!

llvm-svn: 8262
diff --git a/llvm/lib/Analysis/IPA/MemoryDepAnalysis.cpp b/llvm/lib/Analysis/IPA/MemoryDepAnalysis.cpp
index a185c89..417b4be 100644
--- a/llvm/lib/Analysis/IPA/MemoryDepAnalysis.cpp
+++ b/llvm/lib/Analysis/IPA/MemoryDepAnalysis.cpp
@@ -432,7 +432,7 @@
   SCC<Function*>* nextSCC;
   for (TarjanSCC_iterator<Function*> I = tarj_begin(&F), E = tarj_end(&F);
        I != E; ++I)
-    ProcessSCC(**I, ModRefAfter);
+    ProcessSCC(*I, ModRefAfter);
 
   return true;
 }