Set MadeChange instead of MadeChangeThisIteration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89114 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index 9ed8051..8a6b0de 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -205,7 +205,7 @@
   // Do tail duplication once after tail merging is done.  Otherwise it is
   // tough to avoid situations where tail duplication and tail merging undo
   // each other's transformations ad infinitum.
-  MadeChangeThisIteration |= TailDuplicateBlocks(MF);
+  MadeChange |= TailDuplicateBlocks(MF);
 
   // See if any jump tables have become mergable or dead as the code generator
   // did its thing.