1 files changed, 1 insertions, 62 deletions

diff --git a/llvm/tools/llvm-mca/Dispatch.h b/llvm/tools/llvm-mca/Dispatch.h
index 146cfc0edea..205c12c3079 100644
--- a/llvm/tools/llvm-mca/Dispatch.h
+++ b/llvm/tools/llvm-mca/Dispatch.h
@@ -17,6 +17,7 @@
 #define LLVM_TOOLS_LLVM_MCA_DISPATCH_H
 
 #include "Instruction.h"
+#include "RetireControlUnit.h"
 #include "llvm/MC/MCRegisterInfo.h"
 #include "llvm/MC/MCSubtargetInfo.h"
 #include <map>
@@ -155,68 +156,6 @@ public:
 #endif
 };
 
-/// tracks which instructions are in-flight (i.e. dispatched but not
-/// retired) in the OoO backend.
-///
-/// This class checks on every cycle if/which instructions can be retired.
-/// Instructions are retired in program order.
-/// In the event of instruction retired, the DispatchUnit object that owns
-/// this RetireControlUnit gets notified.
-/// On instruction retired, register updates are all architecturally
-/// committed, and any temporary registers originally allocated for the
-/// retired instruction are freed.
-struct RetireControlUnit {
-  // A "token" (object of class RUToken) is created by the retire unit for every
-  // instruction dispatched to the schedulers.  Flag 'Executed' is used to
-  // quickly check if an instruction has reached the write-back stage.  A token
-  // also carries information related to the number of entries consumed by the
-  // instruction in the reorder buffer. The idea is that those entries will
-  // become available again once the instruction is retired.  On every cycle,
-  // the RCU (Retire Control Unit) scans every token starting to search for
-  // instructions that are ready to retire.  retired. Instructions are retired
-  // in program order. Only 'Executed' instructions are eligible for retire.
-  // Note that the size of the reorder buffer is defined by the scheduling model
-  // via field 'NumMicroOpBufferSize'.
-  struct RUToken {
-    unsigned Index;    // Instruction index.
-    unsigned NumSlots; // Slots reserved to this instruction.
-    bool Executed;     // True if the instruction is past the WB stage.
-  };
-
-private:
-  unsigned NextAvailableSlotIdx;
-  unsigned CurrentInstructionSlotIdx;
-  unsigned AvailableSlots;
-  unsigned MaxRetirePerCycle; // 0 means no limit.
-  std::vector<RUToken> Queue;
-  DispatchUnit *Owner;
-
-public:
-  RetireControlUnit(const llvm::MCSchedModel &SM, DispatchUnit *DU);
-
-  bool isFull() const { return !AvailableSlots; }
-  bool isEmpty() const { return AvailableSlots == Queue.size(); }
-  bool isAvailable(unsigned Quantity = 1) const {
-    // Some instructions may declare a number of uOps which exceedes the size
-    // of the reorder buffer. To avoid problems, cap the amount of slots to
-    // the size of the reorder buffer.
-    Quantity = std::min(Quantity, static_cast<unsigned>(Queue.size()));
-    return AvailableSlots >= Quantity;
-  }
-
-  // Reserves a number of slots, and returns a new token.
-  unsigned reserveSlot(unsigned Index, unsigned NumMicroOps);
-
-  /// Retires instructions in program order.
-  void cycleEvent();
-
-  void onInstructionExecuted(unsigned TokenID);
-
-#ifndef NDEBUG
-  void dump() const;
-#endif
-};
-
 // Implements the hardware dispatch logic.
 //
 // This class is responsible for the dispatch stage, in which instructions are