diff --git a/lib/Transforms/Utils/LCSSA.cpp b/lib/Transforms/Utils/LCSSA.cpp
index 220241df335..3f4bad5c513 100644
--- a/lib/Transforms/Utils/LCSSA.cpp
+++ b/lib/Transforms/Utils/LCSSA.cpp
@@ -231,10 +231,6 @@ Value *LCSSA::GetValueForBlock(DomTreeNode *BB, Instruction *OrigInst,
 
   DomTreeNode *IDom = BB->getIDom();
 
-  // If the block has no dominator, bail
-  if (!IDom)
-    return V = UndefValue::get(OrigInst->getType());
-
   // Otherwise, there are two cases: we either have to insert a PHI node or we
   // don't.  We need to insert a PHI node if this block is not dominated by one
   // of the exit nodes from the loop (the loop could have multiple exits, and