1 files changed, 8 insertions, 5 deletions
diff --git a/lib/Target/SystemZ/SystemZHazardRecognizer.h b/lib/Target/SystemZ/SystemZHazardRecognizer.h
index 7e1b5fb2e4fe..40cb3acc7009 100644
--- a/lib/Target/SystemZ/SystemZHazardRecognizer.h
+++ b/lib/Target/SystemZ/SystemZHazardRecognizer.h
@@ -75,9 +75,11 @@ class SystemZHazardRecognizer : public ScheduleHazardRecognizer {
 
   /// Two decoder groups per cycle are formed (for z13), meaning 2x3
   /// instructions. This function returns a number between 0 and 5,
-  /// representing the current decoder slot of the current cycle.
-  unsigned getCurrCycleIdx();
-  
+  /// representing the current decoder slot of the current cycle.  If an SU
+  /// is passed which will begin a new decoder group, the returned value is
+  /// the cycle index of the next group.
+  unsigned getCurrCycleIdx(SUnit *SU = nullptr) const;
+
   /// LastFPdOpCycleIdx stores the numbeer returned by getCurrCycleIdx()
   /// when a stalling operation is scheduled (which uses the FPd resource).
   unsigned LastFPdOpCycleIdx;
@@ -88,14 +90,14 @@ class SystemZHazardRecognizer : public ScheduleHazardRecognizer {
   unsigned getCurrGroupSize() {return CurrGroupSize;};
 
   /// Start next decoder group.
-  void nextGroup(bool DbgOutput = true);
+  void nextGroup();
 
   /// Clear all counters for processor resources.
   void clearProcResCounters();
 
   /// With the goal of alternating processor sides for stalling (FPd)
   /// ops, return true if it seems good to schedule an FPd op next.
-  bool isFPdOpPreferred_distance(const SUnit *SU);
+  bool isFPdOpPreferred_distance(SUnit *SU) const;
 
   /// Last emitted instruction or nullptr.
   MachineInstr *LastEmittedMI;
@@ -145,6 +147,7 @@ public:
   void dumpSU(SUnit *SU, raw_ostream &OS) const;
   void dumpCurrGroup(std::string Msg = "") const;
   void dumpProcResourceCounters() const;
+  void dumpState() const;
 #endif
 
   MachineBasicBlock::iterator getLastEmittedMI() { return LastEmittedMI; }