1 files changed, 12 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
index dd968ed454..307b2b9b70 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
@@ -441,6 +441,18 @@ void ScheduleDAG::EmitNode(SDNode *Node,
       }
     }
 
+    // Emit implicit def / use operands.
+    if (II.ImplicitDefs) {
+      for (const unsigned *ImplicitDefs = II.ImplicitDefs;
+           *ImplicitDefs; ++ImplicitDefs)
+        MI->addRegOperand(*ImplicitDefs, true, true);
+    }
+    if (II.ImplicitUses) {
+      for (const unsigned *ImplicitUses = II.ImplicitUses;
+           *ImplicitUses; ++ImplicitUses)
+        MI->addRegOperand(*ImplicitUses, false, true);
+    }
+
     // Now that we have emitted all operands, emit this instruction itself.
     if ((II.Flags & M_USES_CUSTOM_DAG_SCHED_INSERTION) == 0) {
       BB->insert(BB->end(), MI);