llvm/lib/Target/Hexagon/HexagonMachineScheduler.h

   1 //===- HexagonMachineScheduler.h - Custom Hexagon MI scheduler --*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // Custom Hexagon MI scheduler.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONMACHINESCHEDULER_H
  14 #define LLVM_LIB_TARGET_HEXAGON_HEXAGONMACHINESCHEDULER_H
  15
  16 #include "llvm/CodeGen/MachineScheduler.h"
  17 #include "llvm/CodeGen/RegisterPressure.h"
  18 #include "llvm/CodeGen/TargetSubtargetInfo.h"
  19 #include "llvm/CodeGen/VLIWMachineScheduler.h"
  20
  21 namespace llvm {
  22
  23 class SUnit;
  24
  25 class HexagonVLIWResourceModel : public VLIWResourceModel {
  26 public:
  27   using VLIWResourceModel::VLIWResourceModel;
  28   bool hasDependence(const SUnit *SUd, const SUnit *SUu) override;
  29 };
  30
  31 class HexagonConvergingVLIWScheduler : public ConvergingVLIWScheduler {
  32 protected:
  33   VLIWResourceModel *
  34   createVLIWResourceModel(const TargetSubtargetInfo &STI,
  35                           const TargetSchedModel *SchedModel) const override;
  36   int SchedulingCost(ReadyQueue &Q, SUnit *SU, SchedCandidate &Candidate,
  37                      RegPressureDelta &Delta, bool verbose) override;
  38 };
  39
  40 } // end namespace llvm
  41
  42 #endif // LLVM_LIB_TARGET_HEXAGON_HEXAGONMACHINESCHEDULER_H