Fixed a strange construct. Please review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43960 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BreakCriticalMachineEdges.cpp b/lib/CodeGen/BreakCriticalMachineEdges.cpp
index 900cb6a..21d9dbb 100644
--- a/lib/CodeGen/BreakCriticalMachineEdges.cpp
+++ b/lib/CodeGen/BreakCriticalMachineEdges.cpp
@@ -124,7 +124,7 @@
     }
   }
 
-  for(unsigned u = 0; u < SourceBlocks.size() > 0; u++)
+  for(unsigned u = 0; u < SourceBlocks.size(); u++)
     splitCriticalEdge(SourceBlocks[u], DestBlocks[u]);
 
   return false;