1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h
index 84e41fc4a1..8e7bd82201 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h
@@ -158,6 +158,12 @@ namespace llvm {
       void InitNodeNumDefs();
     };
 
+  protected:
+    /// ForceUnitLatencies - Return true if all scheduling edges should be given
+    /// a latency value of one.  The default is to return false; schedulers may
+    /// override this as needed.
+    virtual bool forceUnitLatencies() const { return false; }
+
   private:
     /// ClusterNeighboringLoads - Cluster loads from "near" addresses into
     /// combined SUnits.