Index: lib/Transforms/Scalar/LoopUnswitch.cpp
===================================================================
--- lib/Transforms/Scalar/LoopUnswitch.cpp
+++ lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -518,9 +518,6 @@
     Changed |= processCurrentLoop();
   } while(redoLoop);
 
-  // FIXME: Reconstruct dom info, because it is not preserved properly.
-  if (Changed)
-    DT->recalculate(*F);
   return Changed;
 }