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📄 AccelTable.h(13.54 KB)
📄 Analysis.h(6.04 KB)
📄 AntiDepBreaker.h(3.78 KB)
📄 AsmPrinter.h(27.35 KB)
📄 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: MachineModuleInfo.h

//===-- llvm/CodeGen/MachineModuleInfo.h ------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// Collect meta information for a module.  This information should be in a
// neutral form that can be used by different debugging and exception handling
// schemes.
//
// The organization of information is primarily clustered around the source
// compile units.  The main exception is source line correspondence where
// inlining may interleave code from various compile units.
//
// The following information can be retrieved from the MachineModuleInfo.
//
//  -- Source directories - Directories are uniqued based on their canonical
//     string and assigned a sequential numeric ID (base 1.)
//  -- Source files - Files are also uniqued based on their name and directory
//     ID.  A file ID is sequential number (base 1.)
//  -- Source line correspondence - A vector of file ID, line#, column# triples.
//     A DEBUG_LOCATION instruction is generated  by the DAG Legalizer
//     corresponding to each entry in the source line list.  This allows a debug
//     emitter to generate labels referenced by debug information tables.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_MACHINEMODULEINFO_H
#define LLVM_CODEGEN_MACHINEMODULEINFO_H

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/IR/PassManager.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Pass.h"
#include <memory>
#include <utility>
#include <vector>

namespace llvm {

class BasicBlock;
class CallInst;
class Function;
class LLVMTargetMachine;
class MMIAddrLabelMap;
class MachineFunction;
class Module;

//===----------------------------------------------------------------------===//
/// This class can be derived from and used by targets to hold private
/// target-specific information for each Module.  Objects of type are
/// accessed/created with MMI::getInfo and destroyed when the MachineModuleInfo
/// is destroyed.
///
class MachineModuleInfoImpl {
public:
  using StubValueTy = PointerIntPair<MCSymbol *, 1, bool>;
  using SymbolListTy = std::vector<std::pair<MCSymbol *, StubValueTy>>;

virtual ~MachineModuleInfoImpl();

protected:
  /// Return the entries from a DenseMap in a deterministic sorted orer.
  /// Clears the map.
  static SymbolListTy getSortedStubs(DenseMap<MCSymbol*, StubValueTy>&);
};

//===----------------------------------------------------------------------===//
/// This class contains meta information specific to a module.  Queries can be
/// made by different debugging and exception handling schemes and reformated
/// for specific use.
///
class MachineModuleInfo {
  friend class MachineModuleInfoWrapperPass;
  friend class MachineModuleAnalysis;

const LLVMTargetMachine &TM;

/// This is the MCContext used for the entire code generator.
  MCContext Context;

/// This is the LLVM Module being worked on.
  const Module *TheModule;

/// This is the object-file-format-specific implementation of
  /// MachineModuleInfoImpl, which lets targets accumulate whatever info they
  /// want.
  MachineModuleInfoImpl *ObjFileMMI;

/// \name Exception Handling
  /// \{

/// Vector of all personality functions ever seen. Used to emit common EH
  /// frames.
  std::vector<const Function *> Personalities;

/// The current call site index being processed, if any. 0 if none.
  unsigned CurCallSite;

/// \}

/// This map keeps track of which symbol is being used for the specified
  /// basic block's address of label.
  MMIAddrLabelMap *AddrLabelSymbols;

// TODO: Ideally, what we'd like is to have a switch that allows emitting
  // synchronous (precise at call-sites only) CFA into .eh_frame. However,
  // even under this switch, we'd like .debug_frame to be precise when using
  // -g. At this moment, there's no way to specify that some CFI directives
  // go into .eh_frame only, while others go into .debug_frame only.

/// True if debugging information is available in this module.
  bool DbgInfoAvailable;

/// True if this module is being built for windows/msvc, and uses floating
  /// point.  This is used to emit an undefined reference to _fltused.
  bool UsesMSVCFloatingPoint;

/// True if the module calls the __morestack function indirectly, as is
  /// required under the large code model on x86. This is used to emit
  /// a definition of a symbol, __morestack_addr, containing the address. See
  /// comments in lib/Target/X86/X86FrameLowering.cpp for more details.
  bool UsesMorestackAddr;

/// True if the module contains split-stack functions. This is used to
  /// emit .note.GNU-split-stack section as required by the linker for
  /// special handling split-stack function calling no-split-stack function.
  bool HasSplitStack;

/// True if the module contains no-split-stack functions. This is used to
  /// emit .note.GNU-no-split-stack section when it also contains split-stack
  /// functions.
  bool HasNosplitStack;

/// Maps IR Functions to their corresponding MachineFunctions.
  DenseMap<const Function*, std::unique_ptr<MachineFunction>> MachineFunctions;
  /// Next unique number available for a MachineFunction.
  unsigned NextFnNum = 0;
  const Function *LastRequest = nullptr; ///< Used for shortcut/cache.
  MachineFunction *LastResult = nullptr; ///< Used for shortcut/cache.

MachineModuleInfo &operator=(MachineModuleInfo &&MMII) = delete;

public:
  explicit MachineModuleInfo(const LLVMTargetMachine *TM = nullptr);

MachineModuleInfo(MachineModuleInfo &&MMII);

~MachineModuleInfo();

void initialize();
  void finalize();

const LLVMTargetMachine &getTarget() const { return TM; }

const MCContext &getContext() const { return Context; }
  MCContext &getContext() { return Context; }

const Module *getModule() const { return TheModule; }

/// Returns the MachineFunction constructed for the IR function \p F.
  /// Creates a new MachineFunction if none exists yet.
  MachineFunction &getOrCreateMachineFunction(Function &F);

/// \brief Returns the MachineFunction associated to IR function \p F if there
  /// is one, otherwise nullptr.
  MachineFunction *getMachineFunction(const Function &F) const;

/// Delete the MachineFunction \p MF and reset the link in the IR Function to
  /// Machine Function map.
  void deleteMachineFunctionFor(Function &F);

/// Keep track of various per-function pieces of information for backends
  /// that would like to do so.
  template<typename Ty>
  Ty &getObjFileInfo() {
    if (ObjFileMMI == nullptr)
      ObjFileMMI = new Ty(*this);
    return *static_cast<Ty*>(ObjFileMMI);
  }

template<typename Ty>
  const Ty &getObjFileInfo() const {
    return const_cast<MachineModuleInfo*>(this)->getObjFileInfo<Ty>();
  }

/// Returns true if valid debug info is present.
  bool hasDebugInfo() const { return DbgInfoAvailable; }
  void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; }

bool usesMSVCFloatingPoint() const { return UsesMSVCFloatingPoint; }

void setUsesMSVCFloatingPoint(bool b) { UsesMSVCFloatingPoint = b; }

bool usesMorestackAddr() const {
    return UsesMorestackAddr;
  }

void setUsesMorestackAddr(bool b) {
    UsesMorestackAddr = b;
  }

bool hasSplitStack() const {
    return HasSplitStack;
  }

void setHasSplitStack(bool b) {
    HasSplitStack = b;
  }

bool hasNosplitStack() const {
    return HasNosplitStack;
  }

void setHasNosplitStack(bool b) {
    HasNosplitStack = b;
  }

/// Return the symbol to be used for the specified basic block when its
  /// address is taken.  This cannot be its normal LBB label because the block
  /// may be accessed outside its containing function.
  MCSymbol *getAddrLabelSymbol(const BasicBlock *BB) {
    return getAddrLabelSymbolToEmit(BB).front();
  }

/// Return the symbol to be used for the specified basic block when its
  /// address is taken.  If other blocks were RAUW'd to this one, we may have
  /// to emit them as well, return the whole set.
  ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(const BasicBlock *BB);

/// \name Exception Handling
  /// \{

/// Set the call site currently being processed.
  void setCurrentCallSite(unsigned Site) { CurCallSite = Site; }

/// Get the call site currently being processed, if any.  return zero if
  /// none.
  unsigned getCurrentCallSite() { return CurCallSite; }

/// Provide the personality function for the exception information.
  void addPersonality(const Function *Personality);

/// Return array of personality functions ever seen.
  const std::vector<const Function *>& getPersonalities() const {
    return Personalities;
  }
  /// \}
}; // End class MachineModuleInfo

class MachineModuleInfoWrapperPass : public ImmutablePass {
  MachineModuleInfo MMI;

public:
  static char ID; // Pass identification, replacement for typeid
  explicit MachineModuleInfoWrapperPass(const LLVMTargetMachine *TM = nullptr);

// Initialization and Finalization
  bool doInitialization(Module &) override;
  bool doFinalization(Module &) override;

MachineModuleInfo &getMMI() { return MMI; }
  const MachineModuleInfo &getMMI() const { return MMI; }
};

/// An analysis that produces \c MachineInfo for a module.
class MachineModuleAnalysis : public AnalysisInfoMixin<MachineModuleAnalysis> {
  friend AnalysisInfoMixin<MachineModuleAnalysis>;
  static AnalysisKey Key;

const LLVMTargetMachine *TM;

public:
  /// Provide the result type for this analysis pass.
  using Result = MachineModuleInfo;

MachineModuleAnalysis(const LLVMTargetMachine *TM) : TM(TM) {}

/// Run the analysis pass and produce machine module information.
  MachineModuleInfo run(Module &M, ModuleAnalysisManager &);
};

} // end namespace llvm

#endif // LLVM_CODEGEN_MACHINEMODULEINFO_H

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