[MBP] Sink a comment into the if block to which it pertains. This makes
the content of the comment make much more sense.

llvm-svn: 235007
diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp
index 5e7daa8..df7c7b9 100644
--- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp
+++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp
@@ -724,8 +724,8 @@
       }
     }
 
-    // Restore the old exiting state, no viable looping successor was found.
     if (!HasLoopingSucc) {
+      // Restore the old exiting state, no viable looping successor was found.
       ExitingBB = OldExitingBB;
       BestExitEdgeFreq = OldBestExitEdgeFreq;
       continue;