Index: llvm/lib/Transforms/Scalar/LoopInterchange.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/LoopInterchange.cpp
+++ llvm/lib/Transforms/Scalar/LoopInterchange.cpp
@@ -120,7 +120,7 @@
       std::vector<char> Dep;
       Instruction *Src = cast<Instruction>(*I);
       Instruction *Dst = cast<Instruction>(*J);
-      if (Src == Dst)
+      if (I != J && Src == Dst)
         continue;
       // Ignore Input dependencies.
       if (isa<LoadInst>(Src) && isa<LoadInst>(Dst))