SlotIndexes: Introduce an iterator into the idx2MBBMap.

[oota-llvm.git] / include / llvm / CodeGen / TargetSchedule.h

diff --git a/include/llvm/CodeGen/TargetSchedule.h b/include/llvm/CodeGen/TargetSchedule.h
index 51f79ae4e7486f05d1fa4ef32378ce1b234b901d..81054aba066f6d14e4fbbbf89ef85d5f78a33e45 100644 (file)
--- a/include/llvm/CodeGen/TargetSchedule.h
+++ b/include/llvm/CodeGen/TargetSchedule.h
@@ -40,8 +40,11 @@ class TargetSchedModel {
   SmallVector<unsigned, 16> ResourceFactors;
   unsigned MicroOpFactor; // Multiply to normalize microops to resource units.
   unsigned ResourceLCM;   // Resource units per cycle. Latency normalization factor.
+
+  unsigned computeInstrLatency(const MCSchedClassDesc &SCDesc) const;
+
 public:
-  TargetSchedModel(): STI(nullptr), TII(nullptr) {}
+  TargetSchedModel(): SchedModel(MCSchedModel::GetDefaultSchedModel()), STI(nullptr), TII(nullptr) {}
 
   /// \brief Initialize the machine model for instruction scheduling.
   ///
@@ -78,6 +81,12 @@ public:
     return nullptr;
   }
 
+  /// \brief Return true if this machine model includes an instruction-level
+  /// scheduling model or cycle-to-cycle itinerary data.
+  bool hasInstrSchedModelOrItineraries() const {
+    return hasInstrSchedModel() || hasInstrItineraries();
+  }
+
   /// \brief Identify the processor corresponding to the current subtarget.
   unsigned getProcessorID() const { return SchedModel.getProcessorID(); }