Fix comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146226 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp
index c4a533b..3837f6d 100644
--- a/lib/CodeGen/MachineSink.cpp
+++ b/lib/CodeGen/MachineSink.cpp
@@ -149,11 +149,10 @@
   assert(TargetRegisterInfo::isVirtualRegister(Reg) &&
          "Only makes sense for vregs");
 
+  // Ignore debug uses because debug info doesn't affect the code.
   if (MRI->use_nodbg_empty(Reg))
     return true;
 
-  // Ignoring debug uses because debug info doesn't affect the code.
-
   // BreakPHIEdge is true if all the uses are in the successor MBB being sunken
   // into and they are all PHI nodes. In this case, machine-sink must break
   // the critical edge first. e.g.