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📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 P9InstrResources.td(37.36 KB)
📄 PPC.h(4.69 KB)
📄 PPC.td(32.37 KB)
📄 PPCAsmPrinter.cpp(70.77 KB)
📄 PPCBoolRetToInt.cpp(9.97 KB)
📄 PPCBranchCoalescing.cpp(30.16 KB)
📄 PPCBranchSelector.cpp(15.97 KB)
📄 PPCCCState.cpp(1.08 KB)
📄 PPCCCState.h(1.19 KB)
📄 PPCCTRLoops.cpp(6.68 KB)
📄 PPCCallingConv.cpp(6.19 KB)
📄 PPCCallingConv.h(1.97 KB)
📄 PPCCallingConv.td(16.32 KB)
📄 PPCEarlyReturn.cpp(7.14 KB)
📄 PPCExpandISEL.cpp(17.93 KB)
📄 PPCFastISel.cpp(85.51 KB)
📄 PPCFrameLowering.cpp(98.6 KB)
📄 PPCFrameLowering.h(7.46 KB)
📄 PPCHazardRecognizers.cpp(14.02 KB)
📄 PPCHazardRecognizers.h(3.83 KB)
📄 PPCISelDAGToDAG.cpp(256.88 KB)
📄 PPCISelLowering.cpp(669.73 KB)
📄 PPCISelLowering.h(55.9 KB)
📄 PPCInstr64Bit.td(75.68 KB)
📄 PPCInstrAltivec.td(77.68 KB)
📄 PPCInstrBuilder.h(1.5 KB)
📄 PPCInstrFormats.td(57.38 KB)
📄 PPCInstrHTM.td(5.48 KB)
📄 PPCInstrInfo.cpp(171.06 KB)
📄 PPCInstrInfo.h(29.06 KB)
📄 PPCInstrInfo.td(233.39 KB)
📄 PPCInstrPrefix.td(41.72 KB)
📄 PPCInstrQPX.td(57.56 KB)
📄 PPCInstrSPE.td(49.71 KB)
📄 PPCInstrVSX.td(223.48 KB)
📄 PPCLoopInstrFormPrep.cpp(33.45 KB)
📄 PPCLowerMASSVEntries.cpp(6.42 KB)
📄 PPCMCInstLower.cpp(6.62 KB)
📄 PPCMIPeephole.cpp(63.48 KB)
📄 PPCMachineFunctionInfo.cpp(2.59 KB)
📄 PPCMachineFunctionInfo.h(9.15 KB)
📄 PPCMachineScheduler.cpp(4.03 KB)
📄 PPCMachineScheduler.h(1.81 KB)
📄 PPCMacroFusion.cpp(6.68 KB)
📄 PPCMacroFusion.def(1.8 KB)
📄 PPCMacroFusion.h(886 B)
📄 PPCPerfectShuffle.h(397.57 KB)
📄 PPCPfmCounters.td(705 B)
📄 PPCPreEmitPeephole.cpp(13.36 KB)
📄 PPCQPXLoadSplat.cpp(5.31 KB)
📄 PPCReduceCRLogicals.cpp(28.66 KB)
📄 PPCRegisterInfo.cpp(51.93 KB)
📄 PPCRegisterInfo.h(6.61 KB)
📄 PPCRegisterInfo.td(14.24 KB)
📄 PPCSchedule.td(5.21 KB)
📄 PPCSchedule440.td(34.57 KB)
📄 PPCScheduleA2.td(7.85 KB)
📄 PPCScheduleE500.td(16.59 KB)
📄 PPCScheduleE500mc.td(20.89 KB)
📄 PPCScheduleE5500.td(23.62 KB)
📄 PPCScheduleG3.td(4.49 KB)
📄 PPCScheduleG4.td(5.42 KB)
📄 PPCScheduleG4Plus.td(6.45 KB)
📄 PPCScheduleG5.td(7.1 KB)
📄 PPCScheduleP7.td(22.26 KB)
📄 PPCScheduleP8.td(23.96 KB)
📄 PPCScheduleP9.td(12.27 KB)
📄 PPCSubtarget.cpp(7.58 KB)
📄 PPCSubtarget.h(13.21 KB)
📄 PPCTLSDynamicCall.cpp(6.53 KB)
📄 PPCTOCRegDeps.cpp(5.3 KB)
📄 PPCTargetMachine.cpp(18.94 KB)
📄 PPCTargetMachine.h(2.2 KB)
📄 PPCTargetObjectFile.cpp(2.45 KB)
📄 PPCTargetObjectFile.h(1.19 KB)
📄 PPCTargetStreamer.h(1.02 KB)
📄 PPCTargetTransformInfo.cpp(38.72 KB)
📄 PPCTargetTransformInfo.h(5.6 KB)
📄 PPCVSXCopy.cpp(5.68 KB)
📄 PPCVSXFMAMutate.cpp(15.12 KB)
📄 PPCVSXSwapRemoval.cpp(36.78 KB)
📄 README_P9.txt(22.25 KB)
📁 TargetInfo

Editing: PPCHazardRecognizers.h

//===-- PPCHazardRecognizers.h - PowerPC Hazard Recognizers -----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines hazard recognizers for scheduling on PowerPC processors.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_POWERPC_PPCHAZARDRECOGNIZERS_H
#define LLVM_LIB_TARGET_POWERPC_PPCHAZARDRECOGNIZERS_H

#include "PPCInstrInfo.h"
#include "llvm/CodeGen/ScheduleHazardRecognizer.h"
#include "llvm/CodeGen/ScoreboardHazardRecognizer.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"

namespace llvm {

/// PPCDispatchGroupSBHazardRecognizer - This class implements a scoreboard-based
/// hazard recognizer for PPC ooo processors with dispatch-group hazards.
class PPCDispatchGroupSBHazardRecognizer : public ScoreboardHazardRecognizer {
  const ScheduleDAG *DAG;
  SmallVector<SUnit *, 7> CurGroup;
  unsigned CurSlots, CurBranches;

bool isLoadAfterStore(SUnit *SU);
  bool isBCTRAfterSet(SUnit *SU);
  bool mustComeFirst(const MCInstrDesc *MCID, unsigned &NSlots);
public:
  PPCDispatchGroupSBHazardRecognizer(const InstrItineraryData *ItinData,
                         const ScheduleDAG *DAG_) :
    ScoreboardHazardRecognizer(ItinData, DAG_), DAG(DAG_),
    CurSlots(0), CurBranches(0) {}

HazardType getHazardType(SUnit *SU, int Stalls) override;
  bool ShouldPreferAnother(SUnit* SU) override;
  unsigned PreEmitNoops(SUnit *SU) override;
  void EmitInstruction(SUnit *SU) override;
  void AdvanceCycle() override;
  void RecedeCycle() override;
  void Reset() override;
  void EmitNoop() override;
};

/// PPCHazardRecognizer970 - This class defines a finite state automata that
/// models the dispatch logic on the PowerPC 970 (aka G5) processor.  This
/// promotes good dispatch group formation and implements noop insertion to
/// avoid structural hazards that cause significant performance penalties (e.g.
/// setting the CTR register then branching through it within a dispatch group),
/// or storing then loading from the same address within a dispatch group.
class PPCHazardRecognizer970 : public ScheduleHazardRecognizer {
  const ScheduleDAG &DAG;

unsigned NumIssued;  // Number of insts issued, including advanced cycles.

// Various things that can cause a structural hazard.

// HasCTRSet - If the CTR register is set in this group, disallow BCTRL.
  bool HasCTRSet;

// StoredPtr - Keep track of the address of any store.  If we see a load from
  // the same address (or one that aliases it), disallow the store.  We can have
  // up to four stores in one dispatch group, hence we track up to 4.
  //
  // This is null if we haven't seen a store yet.  We keep track of both
  // operands of the store here, since we support [r+r] and [r+i] addressing.
  const Value *StoreValue[4];
  int64_t StoreOffset[4];
  uint64_t StoreSize[4];
  unsigned NumStores;

public:
  PPCHazardRecognizer970(const ScheduleDAG &DAG);
  HazardType getHazardType(SUnit *SU, int Stalls) override;
  void EmitInstruction(SUnit *SU) override;
  void AdvanceCycle() override;
  void Reset() override;

private:
  /// EndDispatchGroup - Called when we are finishing a new dispatch group.
  ///
  void EndDispatchGroup();

/// GetInstrType - Classify the specified powerpc opcode according to its
  /// pipeline.
  PPCII::PPC970_Unit GetInstrType(unsigned Opcode,
                                  bool &isFirst, bool &isSingle,bool &isCracked,
                                  bool &isLoad, bool &isStore);

bool isLoadOfStoredAddress(uint64_t LoadSize, int64_t LoadOffset,
                             const Value *LoadValue) const;
};

} // end namespace llvm

#endif

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Editing: PPCHazardRecognizers.h

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