2 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index b06a7b9..5efebe6 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -149,6 +149,13 @@ public:
     return SchedPreferenceInfo;
   }
 
+  /// getSchedulingPreference - Some scheduler, e.g. hybrid, can switch to
+  /// different scheduling heuristics for different nodes. This function returns
+  /// the preference (or none) for the given node.
+  virtual Sched::Preference getSchedulingPreference(SDNode *N) const {
+    return Sched::None;
+  }
+
   /// getRegClassFor - Return the register class that should be used for the
   /// specified value type.
   virtual TargetRegisterClass *getRegClassFor(EVT VT) const {
diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h
index a89288d..bffba18 100644
--- a/include/llvm/Target/TargetMachine.h
+++ b/include/llvm/Target/TargetMachine.h
@@ -72,6 +72,7 @@ namespace CodeGenOpt {
 
 namespace Sched {
   enum Preference {
+    None,             // No preference
     Latency,          // Scheduling for shortest total latency.
     RegPressure,      // Scheduling for lowest register pressure.
     Hybrid            // Scheduling for both latency and register pressure.