Change errs() to dbgs().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92620 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/TailDuplication.cpp b/lib/Transforms/Scalar/TailDuplication.cpp
index b06ae3d..2306a77 100644
--- a/lib/Transforms/Scalar/TailDuplication.cpp
+++ b/lib/Transforms/Scalar/TailDuplication.cpp
@@ -243,13 +243,13 @@
   BasicBlock *DestBlock = Branch->getSuccessor(0);
   assert(SourceBlock != DestBlock && "Our predicate is broken!");
 
-  DEBUG(errs() << "TailDuplication[" << SourceBlock->getParent()->getName()
+  DEBUG(dbgs() << "TailDuplication[" << SourceBlock->getParent()->getName()
         << "]: Eliminating branch: " << *Branch);
 
   // See if we can avoid duplicating code by moving it up to a dominator of both
   // blocks.
   if (BasicBlock *DomBlock = FindObviousSharedDomOf(SourceBlock, DestBlock)) {
-    DEBUG(errs() << "Found shared dominator: " << DomBlock->getName() << "\n");
+    DEBUG(dbgs() << "Found shared dominator: " << DomBlock->getName() << "\n");
 
     // If there are non-phi instructions in DestBlock that have no operands
     // defined in DestBlock, and if the instruction has no side effects, we can
@@ -272,7 +272,7 @@
           // Remove from DestBlock, move right before the term in DomBlock.
           DestBlock->getInstList().remove(I);
           DomBlock->getInstList().insert(DomBlock->getTerminator(), I);
-          DEBUG(errs() << "Hoisted: " << *I);
+          DEBUG(dbgs() << "Hoisted: " << *I);
         }
       }
     }