diff --git a/include/llvm/CodeGen/ScheduleDAG.h b/include/llvm/CodeGen/ScheduleDAG.h
index 2eb3db3..2f01948 100644
--- a/include/llvm/CodeGen/ScheduleDAG.h
+++ b/include/llvm/CodeGen/ScheduleDAG.h
@@ -265,7 +265,6 @@
     bool isCloned         : 1;          // True if this node has been cloned.
     Sched::Preference SchedulingPref;   // Scheduling preference.
 
-    SmallVector<MachineInstr*, 4> DbgInstrList; // dbg_values referencing this.
   private:
     bool isDepthCurrent   : 1;          // True if Depth is current.
     bool isHeightCurrent  : 1;          // True if Height is current.
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp
index 3d4e705..2363df4 100644
--- a/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -670,16 +670,11 @@
 
   // Then re-insert them according to the given schedule.
   for (unsigned i = 0, e = Sequence.size(); i != e; i++) {
-    SUnit *SU = Sequence[i];
-    if (!SU) {
+    if (SUnit *SU = Sequence[i])
+      BB->insert(InsertPos, SU->getInstr());
+    else
       // Null SUnit* is a noop.
       EmitNoop();
-      continue;
-    }
-
-    BB->insert(InsertPos, SU->getInstr());
-    for (unsigned i = 0, e = SU->DbgInstrList.size() ; i < e ; ++i)
-      BB->insert(InsertPos, SU->DbgInstrList[i]);
   }
 
   // Update the Begin iterator, as the first instruction in the block