fix assertion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60468 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp
index 9452e6e..1a255a4 100644
--- a/lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/lib/Transforms/Utils/BasicBlockUtils.cpp
@@ -27,7 +27,7 @@
 /// DeleteDeadBlock - Delete the specified block, which must have no
 /// predecessors.
 void llvm::DeleteDeadBlock(BasicBlock *BB) {
-  assert(pred_begin(BB) != pred_end(BB) && "Block is not dead!");
+  assert(pred_begin(BB) == pred_end(BB) && "Block is not dead!");
   TerminatorInst *BBTerm = BB->getTerminator();
   
   // Loop through all of our successors and make sure they know that one