vendor/llvm/llvm-release_39-r276489

1 files changed, 11 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/ScheduleHazardRecognizer.h b/include/llvm/CodeGen/ScheduleHazardRecognizer.h
index 8a40e7212ff6d..214be2794ba37 100644
--- a/include/llvm/CodeGen/ScheduleHazardRecognizer.h
+++ b/include/llvm/CodeGen/ScheduleHazardRecognizer.h
@@ -17,6 +17,7 @@
 
 namespace llvm {
 
+class MachineInstr;
 class SUnit;
 
 /// HazardRecognizer - This determines whether or not an instruction can be
@@ -70,6 +71,10 @@ public:
   /// emitted, to advance the hazard state.
   virtual void EmitInstruction(SUnit *) {}
 
+  /// This overload will be used when the hazard recognizer is being used
+  /// by a non-scheduling pass, which does not use SUnits.
+  virtual void EmitInstruction(MachineInstr *) {}
+
   /// PreEmitNoops - This callback is invoked prior to emitting an instruction.
   /// It should return the number of noops to emit prior to the provided
   /// instruction.
@@ -79,6 +84,12 @@ public:
     return 0;
   }
 
+  /// This overload will be used when the hazard recognizer is being used
+  /// by a non-scheduling pass, which does not use SUnits.
+  virtual unsigned PreEmitNoops(MachineInstr *) {
+    return 0;
+  }
+
   /// ShouldPreferAnother - This callback may be invoked if getHazardType
   /// returns NoHazard. If, even though there is no hazard, it would be better to
   /// schedule another available instruction, this callback should return true.