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📄 AntiDepBreaker.h(3.78 KB)
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📄 AsmPrinterHandler.h(2.6 KB)
📄 AtomicExpandUtils.h(2.49 KB)
📄 BasicTTIImpl.h(73.64 KB)
📄 BuiltinGCs.h(1008 B)
📄 CSEConfigBase.h(1.09 KB)
📄 CalcSpillWeights.h(4.69 KB)
📄 CallingConvLower.h(21 KB)
📄 CommandFlags.h(3.65 KB)
📄 CostTable.h(1.87 KB)
📄 DAGCombine.h(606 B)
📄 DFAPacketizer.h(7.47 KB)
📄 DIE.h(32.19 KB)
📄 DIEValue.def(1.4 KB)
📄 DbgEntityHistoryCalculator.h(4.37 KB)
📄 DebugHandlerBase.h(4.68 KB)
📄 DwarfStringPoolEntry.h(2.18 KB)
📄 EdgeBundles.h(2.13 KB)
📄 ExecutionDomainFix.h(7.72 KB)
📄 ExpandReductions.h(726 B)
📄 FastISel.h(22.87 KB)
📄 FaultMaps.h(6.66 KB)
📄 FunctionLoweringInfo.h(9.68 KB)
📄 GCMetadata.h(7.24 KB)
📄 GCMetadataPrinter.h(2.46 KB)
📄 GCStrategy.h(5.25 KB)
📁 GlobalISel
📄 ISDOpcodes.h(52.75 KB)
📄 IndirectThunks.h(3.85 KB)
📄 IntrinsicLowering.h(1.67 KB)
📄 LatencyPriorityQueue.h(3.09 KB)
📄 LazyMachineBlockFrequencyInfo.h(2.82 KB)
📄 LexicalScopes.h(10.06 KB)
📄 LinkAllAsmWriterComponents.h(1.34 KB)
📄 LinkAllCodegenComponents.h(2.18 KB)
📄 LiveInterval.h(37.24 KB)
📄 LiveIntervalCalc.h(2.91 KB)
📄 LiveIntervalUnion.h(6.93 KB)
📄 LiveIntervals.h(19.86 KB)
📄 LivePhysRegs.h(7.51 KB)
📄 LiveRangeCalc.h(11.49 KB)
📄 LiveRangeEdit.h(10.45 KB)
📄 LiveRegMatrix.h(6.18 KB)
📄 LiveRegUnits.h(6.24 KB)
📄 LiveStacks.h(3.35 KB)
📄 LiveVariables.h(12.98 KB)
📄 LoopTraversal.h(4.38 KB)
📄 LowLevelType.h(1.28 KB)
📄 MBFIWrapper.h(1.58 KB)
📄 MIRFormatter.h(3.13 KB)
📁 MIRParser
📄 MIRPrinter.h(1.73 KB)
📄 MIRYamlMapping.h(23.95 KB)
📄 MachORelocation.h(2.19 KB)
📄 MachineBasicBlock.h(42.95 KB)
📄 MachineBlockFrequencyInfo.h(3.21 KB)
📄 MachineBranchProbabilityInfo.h(2.69 KB)
📄 MachineCombinerPattern.h(3.5 KB)
📄 MachineConstantPool.h(5.25 KB)
📄 MachineDominanceFrontier.h(2.93 KB)
📄 MachineDominators.h(9.59 KB)
📄 MachineFrameInfo.h(34.84 KB)
📄 MachineFunction.h(42.94 KB)
📄 MachineFunctionPass.h(2.93 KB)
📄 MachineInstr.h(73.72 KB)
📄 MachineInstrBuilder.h(22.84 KB)
📄 MachineInstrBundle.h(10.16 KB)
📄 MachineInstrBundleIterator.h(10.92 KB)
📄 MachineJumpTableInfo.h(4.66 KB)
📄 MachineLoopInfo.h(7.3 KB)
📄 MachineLoopUtils.h(1.74 KB)
📄 MachineMemOperand.h(12.69 KB)
📄 MachineModuleInfo.h(9.88 KB)
📄 MachineModuleInfoImpls.h(3.36 KB)
📄 MachineOperand.h(37.64 KB)
📄 MachineOptimizationRemarkEmitter.h(8.99 KB)
📄 MachineOutliner.h(8.04 KB)
📄 MachinePassRegistry.h(6.1 KB)
📄 MachinePipeliner.h(21.17 KB)
📄 MachinePostDominators.h(2.93 KB)
📄 MachineRegionInfo.h(5.93 KB)
📄 MachineRegisterInfo.h(46.75 KB)
📄 MachineSSAUpdater.h(4.37 KB)
📄 MachineScheduler.h(36.6 KB)
📄 MachineSizeOpts.h(1.86 KB)
📄 MachineTraceMetrics.h(17.17 KB)
📄 MacroFusion.h(1.96 KB)
📄 ModuloSchedule.h(15.8 KB)
📄 NonRelocatableStringpool.h(2.9 KB)
📁 PBQP
📄 PBQPRAConstraint.h(1.83 KB)
📄 ParallelCG.h(1.66 KB)
📄 Passes.h(18.96 KB)
📄 PreISelIntrinsicLowering.h(944 B)
📄 PseudoSourceValue.h(6.21 KB)
📄 RDFGraph.h(33.73 KB)
📄 RDFLiveness.h(5.01 KB)
📄 RDFRegisters.h(6.51 KB)
📄 ReachingDefAnalysis.h(10.68 KB)
📄 RegAllocPBQP.h(16.47 KB)
📄 RegAllocRegistry.h(2.27 KB)
📄 Register.h(5.61 KB)
📄 RegisterClassInfo.h(4.86 KB)
📄 RegisterPressure.h(21.04 KB)
📄 RegisterScavenging.h(8.73 KB)
📄 RegisterUsageInfo.h(2.3 KB)
📄 ResourcePriorityQueue.h(4.19 KB)
📄 RuntimeLibcalls.h(3.05 KB)
📄 SDNodeProperties.td(1.57 KB)
📄 ScheduleDAG.h(28.92 KB)
📄 ScheduleDAGInstrs.h(15.49 KB)
📄 ScheduleDAGMutation.h(1021 B)
📄 ScheduleDFS.h(5.79 KB)
📄 ScheduleHazardRecognizer.h(4.65 KB)
📄 SchedulerRegistry.h(4.27 KB)
📄 ScoreboardHazardRecognizer.h(3.7 KB)
📄 SelectionDAG.h(89.12 KB)
📄 SelectionDAGAddressAnalysis.h(3.58 KB)
📄 SelectionDAGISel.h(13.48 KB)
📄 SelectionDAGNodes.h(91.77 KB)
📄 SelectionDAGTargetInfo.h(7.99 KB)
📄 SlotIndexes.h(24.12 KB)
📄 Spiller.h(1.16 KB)
📄 StackMaps.h(11.45 KB)
📄 StackProtector.h(4.1 KB)
📄 SwiftErrorValueTracking.h(3.87 KB)
📄 SwitchLoweringUtils.h(9.51 KB)
📄 TailDuplicator.h(5.54 KB)
📄 TargetCallingConv.h(8.26 KB)
📄 TargetFrameLowering.h(19.21 KB)
📄 TargetInstrInfo.h(84.48 KB)
📄 TargetLowering.h(194.17 KB)
📄 TargetLoweringObjectFileImpl.h(11.63 KB)
📄 TargetOpcodes.h(1.37 KB)
📄 TargetPassConfig.h(17.9 KB)
📄 TargetRegisterInfo.h(48.65 KB)
📄 TargetSchedule.h(7.75 KB)
📄 TargetSubtargetInfo.h(12.53 KB)
📄 UnreachableBlockElim.h(1.39 KB)
📄 ValueTypes.h(17.2 KB)
📄 ValueTypes.td(11.42 KB)
📄 VirtRegMap.h(6.37 KB)
📄 WasmEHFuncInfo.h(1.92 KB)
📄 WinEHFuncInfo.h(4.01 KB)

Editing: MachineConstantPool.h

//===- CodeGen/MachineConstantPool.h - Abstract Constant Pool ---*- 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
//
//===----------------------------------------------------------------------===//
//
/// @file
/// This file declares the MachineConstantPool class which is an abstract
/// constant pool to keep track of constants referenced by a function.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_MACHINECONSTANTPOOL_H
#define LLVM_CODEGEN_MACHINECONSTANTPOOL_H

#include "llvm/ADT/DenseSet.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/Alignment.h"
#include <climits>
#include <vector>

namespace llvm {

class Constant;
class DataLayout;
class FoldingSetNodeID;
class MachineConstantPool;
class raw_ostream;
class Type;

/// Abstract base class for all machine specific constantpool value subclasses.
///
class MachineConstantPoolValue {
  virtual void anchor();

Type *Ty;

public:
  explicit MachineConstantPoolValue(Type *ty) : Ty(ty) {}
  virtual ~MachineConstantPoolValue() = default;

/// getType - get type of this MachineConstantPoolValue.
  ///
  Type *getType() const { return Ty; }

virtual int getExistingMachineCPValue(MachineConstantPool *CP,
                                        Align Alignment) = 0;

virtual void addSelectionDAGCSEId(FoldingSetNodeID &ID) = 0;

/// print - Implement operator<<
  virtual void print(raw_ostream &O) const = 0;
};

inline raw_ostream &operator<<(raw_ostream &OS,
                               const MachineConstantPoolValue &V) {
  V.print(OS);
  return OS;
}

/// This class is a data container for one entry in a MachineConstantPool.
/// It contains a pointer to the value and an offset from the start of
/// the constant pool.
/// An entry in a MachineConstantPool
class MachineConstantPoolEntry {
public:
  /// The constant itself.
  union {
    const Constant *ConstVal;
    MachineConstantPoolValue *MachineCPVal;
  } Val;

/// The required alignment for this entry.
  Align Alignment;

bool IsMachineConstantPoolEntry;

MachineConstantPoolEntry(const Constant *V, Align A)
      : Alignment(A), IsMachineConstantPoolEntry(false) {
    Val.ConstVal = V;
  }

MachineConstantPoolEntry(MachineConstantPoolValue *V, Align A)
      : Alignment(A), IsMachineConstantPoolEntry(true) {
    Val.MachineCPVal = V;
  }

/// isMachineConstantPoolEntry - Return true if the MachineConstantPoolEntry
  /// is indeed a target specific constantpool entry, not a wrapper over a
  /// Constant.
  bool isMachineConstantPoolEntry() const { return IsMachineConstantPoolEntry; }

Align getAlign() const { return Alignment; }

Type *getType() const;

/// This method classifies the entry according to whether or not it may
  /// generate a relocation entry.  This must be conservative, so if it might
  /// codegen to a relocatable entry, it should say so.
  bool needsRelocation() const;

SectionKind getSectionKind(const DataLayout *DL) const;
};

/// The MachineConstantPool class keeps track of constants referenced by a
/// function which must be spilled to memory.  This is used for constants which
/// are unable to be used directly as operands to instructions, which typically
/// include floating point and large integer constants.
///
/// Instructions reference the address of these constant pool constants through
/// the use of MO_ConstantPoolIndex values.  When emitting assembly or machine
/// code, these virtual address references are converted to refer to the
/// address of the function constant pool values.
/// The machine constant pool.
class MachineConstantPool {
  Align PoolAlignment; ///< The alignment for the pool.
  std::vector<MachineConstantPoolEntry> Constants; ///< The pool of constants.
  /// MachineConstantPoolValues that use an existing MachineConstantPoolEntry.
  DenseSet<MachineConstantPoolValue*> MachineCPVsSharingEntries;
  const DataLayout &DL;

const DataLayout &getDataLayout() const { return DL; }

public:
  /// The only constructor.
  explicit MachineConstantPool(const DataLayout &DL)
      : PoolAlignment(1), DL(DL) {}
  ~MachineConstantPool();

/// Return the alignment required by the whole constant pool, of which the
  /// first element must be aligned.
  Align getConstantPoolAlign() const { return PoolAlignment; }

/// getConstantPoolIndex - Create a new entry in the constant pool or return
  /// an existing one.  User must specify the minimum required alignment for
  /// the object.
  unsigned getConstantPoolIndex(const Constant *C, Align Alignment);
  unsigned getConstantPoolIndex(MachineConstantPoolValue *V, Align Alignment);

/// isEmpty - Return true if this constant pool contains no constants.
  bool isEmpty() const { return Constants.empty(); }

const std::vector<MachineConstantPoolEntry> &getConstants() const {
    return Constants;
  }

/// print - Used by the MachineFunction printer to print information about
  /// constant pool objects.  Implemented in MachineFunction.cpp
  void print(raw_ostream &OS) const;

/// dump - Call print(cerr) to be called from the debugger.
  void dump() const;
};

} // end namespace llvm

#endif // LLVM_CODEGEN_MACHINECONSTANTPOOL_H

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