[PM] Replace another Pass argument with specific analyses that are
optionally updated by MergeBlockIntoPredecessors.

No functionality changed, just refactoring to clear the way for the new
pass manager.

llvm-svn: 226392
diff --git a/llvm/lib/Transforms/Scalar/LoopRotation.cpp b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
index d8d7eab..c11510f 100644
--- a/llvm/lib/Transforms/Scalar/LoopRotation.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
@@ -593,7 +593,7 @@
   // the OrigHeader block into OrigLatch.  This will succeed if they are
   // connected by an unconditional branch.  This is just a cleanup so the
   // emitted code isn't too gross in this common case.
-  MergeBlockIntoPredecessor(OrigHeader, this);
+  MergeBlockIntoPredecessor(OrigHeader, DT, LI);
 
   DEBUG(dbgs() << "LoopRotation: into "; L->dump());