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📄 AggressiveAntiDepBreaker.cpp(37.23 KB)
📄 AggressiveAntiDepBreaker.h(6.8 KB)
📄 AllocationOrder.cpp(1.96 KB)
📄 AllocationOrder.h(2.96 KB)
📄 Analysis.cpp(32.62 KB)
📁 AsmPrinter
📄 AtomicExpandPass.cpp(71.86 KB)
📄 BBSectionsPrepare.cpp(18.8 KB)
📄 BasicTargetTransformInfo.cpp(1.53 KB)
📄 BranchFolding.cpp(77.92 KB)
📄 BranchFolding.h(7.36 KB)
📄 BranchRelaxation.cpp(19.45 KB)
📄 BreakFalseDeps.cpp(9.79 KB)
📄 BuiltinGCs.cpp(4.88 KB)
📄 CFGuardLongjmp.cpp(3.73 KB)
📄 CFIInstrInserter.cpp(17.53 KB)
📄 CalcSpillWeights.cpp(10.22 KB)
📄 CallingConvLower.cpp(10.4 KB)
📄 CodeGen.cpp(5.28 KB)
📄 CodeGenPrepare.cpp(295.01 KB)
📄 CommandFlags.cpp(24.89 KB)
📄 CriticalAntiDepBreaker.cpp(27.91 KB)
📄 CriticalAntiDepBreaker.h(4.22 KB)
📄 DFAPacketizer.cpp(10.91 KB)
📄 DeadMachineInstructionElim.cpp(6.52 KB)
📄 DetectDeadLanes.cpp(20.74 KB)
📄 DwarfEHPrepare.cpp(9.01 KB)
📄 EarlyIfConversion.cpp(37.51 KB)
📄 EdgeBundles.cpp(3.21 KB)
📄 ExecutionDomainFix.cpp(14.67 KB)
📄 ExpandMemCmp.cpp(33.66 KB)
📄 ExpandPostRAPseudos.cpp(7.28 KB)
📄 ExpandReductions.cpp(7.23 KB)
📄 FEntryInserter.cpp(1.81 KB)
📄 FaultMaps.cpp(4.99 KB)
📄 FinalizeISel.cpp(2.65 KB)
📄 FixupStatepointCallerSaved.cpp(11.06 KB)
📄 FuncletLayout.cpp(2.21 KB)
📄 GCMetadata.cpp(5.1 KB)
📄 GCMetadataPrinter.cpp(748 B)
📄 GCRootLowering.cpp(11.46 KB)
📄 GCStrategy.cpp(708 B)
📁 GlobalISel
📄 GlobalMerge.cpp(24.52 KB)
📄 HardwareLoops.cpp(18.44 KB)
📄 IfConversion.cpp(89.43 KB)
📄 ImplicitNullChecks.cpp(25.14 KB)
📄 IndirectBrExpandPass.cpp(7.79 KB)
📄 InlineSpiller.cpp(58.24 KB)
📄 InterferenceCache.cpp(8.83 KB)
📄 InterferenceCache.h(7.22 KB)
📄 InterleavedAccessPass.cpp(16.59 KB)
📄 InterleavedLoadCombinePass.cpp(42.35 KB)
📄 IntrinsicLowering.cpp(17.08 KB)
📄 LLVMTargetMachine.cpp(10.25 KB)
📄 LatencyPriorityQueue.cpp(5.64 KB)
📄 LazyMachineBlockFrequencyInfo.cpp(3.36 KB)
📄 LexicalScopes.cpp(12.16 KB)
📄 LiveDebugValues.cpp(78.98 KB)
📄 LiveDebugVariables.cpp(51.79 KB)
📄 LiveDebugVariables.h(2.15 KB)
📄 LiveInterval.cpp(46.67 KB)
📄 LiveIntervalCalc.cpp(7.62 KB)
📄 LiveIntervalUnion.cpp(6.36 KB)
📄 LiveIntervals.cpp(64.59 KB)
📄 LivePhysRegs.cpp(11.08 KB)
📄 LiveRangeCalc.cpp(15.72 KB)
📄 LiveRangeEdit.cpp(17.03 KB)
📄 LiveRangeShrink.cpp(8.69 KB)
📄 LiveRangeUtils.h(2.12 KB)
📄 LiveRegMatrix.cpp(7.47 KB)
📄 LiveRegUnits.cpp(4.72 KB)
📄 LiveStacks.cpp(2.95 KB)
📄 LiveVariables.cpp(30.26 KB)
📄 LocalStackSlotAllocation.cpp(17.26 KB)
📄 LoopTraversal.cpp(2.89 KB)
📄 LowLevelType.cpp(1.93 KB)
📄 LowerEmuTLS.cpp(5.66 KB)
📄 MBFIWrapper.cpp(1.57 KB)
📄 MIRCanonicalizerPass.cpp(12.46 KB)
📄 MIRNamerPass.cpp(2.16 KB)
📁 MIRParser
📄 MIRPrinter.cpp(32.67 KB)
📄 MIRPrintingPass.cpp(1.99 KB)
📄 MIRVRegNamerUtils.cpp(6.04 KB)
📄 MIRVRegNamerUtils.h(3.25 KB)
📄 MachineBasicBlock.cpp(50.47 KB)
📄 MachineBlockFrequencyInfo.cpp(10.13 KB)
📄 MachineBlockPlacement.cpp(137.61 KB)
📄 MachineBranchProbabilityInfo.cpp(3.5 KB)
📄 MachineCSE.cpp(31.82 KB)
📄 MachineCombiner.cpp(28.13 KB)
📄 MachineCopyPropagation.cpp(29.21 KB)
📄 MachineDebugify.cpp(6.47 KB)
📄 MachineDominanceFrontier.cpp(1.83 KB)
📄 MachineDominators.cpp(4.86 KB)
📄 MachineFrameInfo.cpp(9.77 KB)
📄 MachineFunction.cpp(42.97 KB)
📄 MachineFunctionPass.cpp(4.78 KB)
📄 MachineFunctionPrinterPass.cpp(2.3 KB)
📄 MachineInstr.cpp(76.39 KB)
📄 MachineInstrBundle.cpp(11.49 KB)
📄 MachineLICM.cpp(57.05 KB)
📄 MachineLoopInfo.cpp(4.98 KB)
📄 MachineLoopUtils.cpp(5.16 KB)
📄 MachineModuleInfo.cpp(9.9 KB)
📄 MachineModuleInfoImpls.cpp(1.5 KB)
📄 MachineOperand.cpp(39.6 KB)
📄 MachineOptimizationRemarkEmitter.cpp(3.29 KB)
📄 MachineOutliner.cpp(42.13 KB)
📄 MachinePipeliner.cpp(111.33 KB)
📄 MachinePostDominators.cpp(2.42 KB)
📄 MachineRegionInfo.cpp(4.75 KB)
📄 MachineRegisterInfo.cpp(22.97 KB)
📄 MachineSSAUpdater.cpp(12.99 KB)
📄 MachineScheduler.cpp(136.89 KB)
📄 MachineSink.cpp(51.94 KB)
📄 MachineSizeOpts.cpp(8.76 KB)
📄 MachineStripDebug.cpp(3.76 KB)
📄 MachineTraceMetrics.cpp(49.58 KB)
📄 MachineVerifier.cpp(107.98 KB)
📄 MacroFusion.cpp(7.55 KB)
📄 ModuloSchedule.cpp(85.09 KB)
📄 NonRelocatableStringpool.cpp(1.65 KB)
📄 OptimizePHIs.cpp(6.7 KB)
📄 PHIElimination.cpp(27.73 KB)
📄 PHIEliminationUtils.cpp(2.56 KB)
📄 PHIEliminationUtils.h(972 B)
📄 ParallelCG.cpp(3.71 KB)
📄 PatchableFunction.cpp(3.44 KB)
📄 PeepholeOptimizer.cpp(78.41 KB)
📄 PostRAHazardRecognizer.cpp(3.5 KB)
📄 PostRASchedulerList.cpp(24.31 KB)
📄 PreISelIntrinsicLowering.cpp(7.91 KB)
📄 ProcessImplicitDefs.cpp(5.4 KB)
📄 PrologEpilogInserter.cpp(50.45 KB)
📄 PseudoSourceValue.cpp(4.71 KB)
📄 RDFGraph.cpp(58.39 KB)
📄 RDFLiveness.cpp(40.7 KB)
📄 RDFRegisters.cpp(11.29 KB)
📄 ReachingDefAnalysis.cpp(21.74 KB)
📄 RegAllocBase.cpp(6.31 KB)
📄 RegAllocBase.h(4.63 KB)
📄 RegAllocBasic.cpp(11.33 KB)
📄 RegAllocFast.cpp(45.78 KB)
📄 RegAllocGreedy.cpp(123.32 KB)
📄 RegAllocPBQP.cpp(33.14 KB)
📄 RegUsageInfoCollector.cpp(7.39 KB)
📄 RegUsageInfoPropagate.cpp(5.07 KB)
📄 RegisterClassInfo.cpp(6.62 KB)
📄 RegisterCoalescer.cpp(151.71 KB)
📄 RegisterCoalescer.h(4.04 KB)
📄 RegisterPressure.cpp(48.86 KB)
📄 RegisterScavenging.cpp(27.48 KB)
📄 RegisterUsageInfo.cpp(3.18 KB)
📄 RenameIndependentSubregs.cpp(14.79 KB)
📄 ResetMachineFunctionPass.cpp(3.48 KB)
📄 SafeStack.cpp(34.12 KB)
📄 SafeStackLayout.cpp(5.3 KB)
📄 SafeStackLayout.h(2.41 KB)
📄 ScalarizeMaskedMemIntrin.cpp(31.46 KB)
📄 ScheduleDAG.cpp(21.34 KB)
📄 ScheduleDAGInstrs.cpp(54.59 KB)
📄 ScheduleDAGPrinter.cpp(3.21 KB)
📄 ScoreboardHazardRecognizer.cpp(7.96 KB)
📁 SelectionDAG
📄 ShadowStackGCLowering.cpp(14.16 KB)
📄 ShrinkWrap.cpp(23.03 KB)
📄 SjLjEHPrepare.cpp(18.93 KB)
📄 SlotIndexes.cpp(9.35 KB)
📄 SpillPlacement.cpp(12.58 KB)
📄 SpillPlacement.h(6.67 KB)
📄 SplitKit.cpp(66.39 KB)
📄 SplitKit.h(23.7 KB)
📄 StackColoring.cpp(49.03 KB)
📄 StackMapLivenessAnalysis.cpp(6.16 KB)
📄 StackMaps.cpp(19.74 KB)
📄 StackProtector.cpp(22.94 KB)
📄 StackSlotColoring.cpp(17.12 KB)
📄 SwiftErrorValueTracking.cpp(11.37 KB)
📄 SwitchLoweringUtils.cpp(18.33 KB)
📄 TailDuplication.cpp(3.32 KB)
📄 TailDuplicator.cpp(38.29 KB)
📄 TargetFrameLoweringImpl.cpp(6.24 KB)
📄 TargetInstrInfo.cpp(51.1 KB)
📄 TargetLoweringBase.cpp(82.53 KB)
📄 TargetLoweringObjectFileImpl.cpp(80.52 KB)
📄 TargetOptionsImpl.cpp(2 KB)
📄 TargetPassConfig.cpp(48.89 KB)
📄 TargetRegisterInfo.cpp(19.15 KB)
📄 TargetSchedule.cpp(13.16 KB)
📄 TargetSubtargetInfo.cpp(1.89 KB)
📄 TwoAddressInstructionPass.cpp(62.08 KB)
📄 TypePromotion.cpp(32.46 KB)
📄 UnreachableBlockElim.cpp(7.48 KB)
📄 ValueTypes.cpp(19.87 KB)
📄 VirtRegMap.cpp(21.4 KB)
📄 WasmEHPrepare.cpp(17.48 KB)
📄 WinEHPrepare.cpp(51.16 KB)
📄 XRayInstrumentation.cpp(9.66 KB)

Editing: MachineModuleInfo.cpp

//===-- llvm/CodeGen/MachineModuleInfo.cpp ----------------------*- 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
//
//===----------------------------------------------------------------------===//

#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/TinyPtrVector.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Value.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCSymbolXCOFF.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include <algorithm>
#include <cassert>
#include <memory>
#include <utility>
#include <vector>

using namespace llvm;
using namespace llvm::dwarf;

// Out of line virtual method.
MachineModuleInfoImpl::~MachineModuleInfoImpl() = default;

namespace llvm {

class MMIAddrLabelMapCallbackPtr final : CallbackVH {
  MMIAddrLabelMap *Map = nullptr;

public:
  MMIAddrLabelMapCallbackPtr() = default;
  MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V) {}

void setPtr(BasicBlock *BB) {
    ValueHandleBase::operator=(BB);
  }

void setMap(MMIAddrLabelMap *map) { Map = map; }

void deleted() override;
  void allUsesReplacedWith(Value *V2) override;
};

class MMIAddrLabelMap {
  MCContext &Context;
  struct AddrLabelSymEntry {
    /// The symbols for the label.
    TinyPtrVector<MCSymbol *> Symbols;

Function *Fn;   // The containing function of the BasicBlock.
    unsigned Index; // The index in BBCallbacks for the BasicBlock.
  };

DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry> AddrLabelSymbols;

/// Callbacks for the BasicBlock's that we have entries for.  We use this so
  /// we get notified if a block is deleted or RAUWd.
  std::vector<MMIAddrLabelMapCallbackPtr> BBCallbacks;

public:
  MMIAddrLabelMap(MCContext &context) : Context(context) {}

ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(BasicBlock *BB);

void UpdateForDeletedBlock(BasicBlock *BB);
  void UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New);
};

} // end namespace llvm

ArrayRef<MCSymbol *> MMIAddrLabelMap::getAddrLabelSymbolToEmit(BasicBlock *BB) {
  assert(BB->hasAddressTaken() &&
         "Shouldn't get label for block without address taken");
  AddrLabelSymEntry &Entry = AddrLabelSymbols[BB];

// If we already had an entry for this block, just return it.
  if (!Entry.Symbols.empty()) {
    assert(BB->getParent() == Entry.Fn && "Parent changed");
    return Entry.Symbols;
  }

// Otherwise, this is a new entry, create a new symbol for it and add an
  // entry to BBCallbacks so we can be notified if the BB is deleted or RAUWd.
  BBCallbacks.emplace_back(BB);
  BBCallbacks.back().setMap(this);
  Entry.Index = BBCallbacks.size() - 1;
  Entry.Fn = BB->getParent();
  MCSymbol *Sym = Context.createTempSymbol(!BB->hasAddressTaken());
  Entry.Symbols.push_back(Sym);
  return Entry.Symbols;
}

void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) {
  // If the block got deleted, there is no need for the symbol.  If the symbol
  // was already emitted, we can just forget about it, otherwise we need to
  // queue it up for later emission when the function is output.
  AddrLabelSymEntry Entry = std::move(AddrLabelSymbols[BB]);
  AddrLabelSymbols.erase(BB);
  assert(!Entry.Symbols.empty() && "Didn't have a symbol, why a callback?");
  BBCallbacks[Entry.Index] = nullptr;  // Clear the callback.

assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) &&
         "Block/parent mismatch");

assert(llvm::all_of(Entry.Symbols, [](MCSymbol *Sym) {
    return Sym->isDefined(); }));
}

void MMIAddrLabelMap::UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New) {
  // Get the entry for the RAUW'd block and remove it from our map.
  AddrLabelSymEntry OldEntry = std::move(AddrLabelSymbols[Old]);
  AddrLabelSymbols.erase(Old);
  assert(!OldEntry.Symbols.empty() && "Didn't have a symbol, why a callback?");

AddrLabelSymEntry &NewEntry = AddrLabelSymbols[New];

// If New is not address taken, just move our symbol over to it.
  if (NewEntry.Symbols.empty()) {
    BBCallbacks[OldEntry.Index].setPtr(New);    // Update the callback.
    NewEntry = std::move(OldEntry);             // Set New's entry.
    return;
  }

BBCallbacks[OldEntry.Index] = nullptr;    // Update the callback.

// Otherwise, we need to add the old symbols to the new block's set.
  NewEntry.Symbols.insert(NewEntry.Symbols.end(), OldEntry.Symbols.begin(),
                          OldEntry.Symbols.end());
}

void MMIAddrLabelMapCallbackPtr::deleted() {
  Map->UpdateForDeletedBlock(cast<BasicBlock>(getValPtr()));
}

void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) {
  Map->UpdateForRAUWBlock(cast<BasicBlock>(getValPtr()), cast<BasicBlock>(V2));
}

void MachineModuleInfo::initialize() {
  ObjFileMMI = nullptr;
  CurCallSite = 0;
  UsesMSVCFloatingPoint = UsesMorestackAddr = false;
  HasSplitStack = HasNosplitStack = false;
  AddrLabelSymbols = nullptr;
}

void MachineModuleInfo::finalize() {
  Personalities.clear();

delete AddrLabelSymbols;
  AddrLabelSymbols = nullptr;

Context.reset();

delete ObjFileMMI;
  ObjFileMMI = nullptr;
}

MachineModuleInfo::MachineModuleInfo(MachineModuleInfo &&MMI)
    : TM(std::move(MMI.TM)),
      Context(MMI.TM.getMCAsmInfo(), MMI.TM.getMCRegisterInfo(),
              MMI.TM.getObjFileLowering(), nullptr, nullptr, false) {
  ObjFileMMI = MMI.ObjFileMMI;
  CurCallSite = MMI.CurCallSite;
  UsesMSVCFloatingPoint = MMI.UsesMSVCFloatingPoint;
  UsesMorestackAddr = MMI.UsesMorestackAddr;
  HasSplitStack = MMI.HasSplitStack;
  HasNosplitStack = MMI.HasNosplitStack;
  AddrLabelSymbols = MMI.AddrLabelSymbols;
  TheModule = MMI.TheModule;
}

MachineModuleInfo::MachineModuleInfo(const LLVMTargetMachine *TM)
    : TM(*TM), Context(TM->getMCAsmInfo(), TM->getMCRegisterInfo(),
                       TM->getObjFileLowering(), nullptr, nullptr, false) {
  initialize();
}

MachineModuleInfo::~MachineModuleInfo() { finalize(); }

//===- Address of Block Management ----------------------------------------===//

ArrayRef<MCSymbol *>
MachineModuleInfo::getAddrLabelSymbolToEmit(const BasicBlock *BB) {
  // Lazily create AddrLabelSymbols.
  if (!AddrLabelSymbols)
    AddrLabelSymbols = new MMIAddrLabelMap(Context);
 return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast<BasicBlock*>(BB));
}

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

void MachineModuleInfo::addPersonality(const Function *Personality) {
  for (unsigned i = 0; i < Personalities.size(); ++i)
    if (Personalities[i] == Personality)
      return;
  Personalities.push_back(Personality);
}

/// \}

MachineFunction *
MachineModuleInfo::getMachineFunction(const Function &F) const {
  auto I = MachineFunctions.find(&F);
  return I != MachineFunctions.end() ? I->second.get() : nullptr;
}

MachineFunction &MachineModuleInfo::getOrCreateMachineFunction(Function &F) {
  // Shortcut for the common case where a sequence of MachineFunctionPasses
  // all query for the same Function.
  if (LastRequest == &F)
    return *LastResult;

auto I = MachineFunctions.insert(
      std::make_pair(&F, std::unique_ptr<MachineFunction>()));
  MachineFunction *MF;
  if (I.second) {
    // No pre-existing machine function, create a new one.
    const TargetSubtargetInfo &STI = *TM.getSubtargetImpl(F);
    MF = new MachineFunction(F, TM, STI, NextFnNum++, *this);
    // Update the set entry.
    I.first->second.reset(MF);
  } else {
    MF = I.first->second.get();
  }

LastRequest = &F;
  LastResult = MF;
  return *MF;
}

void MachineModuleInfo::deleteMachineFunctionFor(Function &F) {
  MachineFunctions.erase(&F);
  LastRequest = nullptr;
  LastResult = nullptr;
}

namespace {

/// This pass frees the MachineFunction object associated with a Function.
class FreeMachineFunction : public FunctionPass {
public:
  static char ID;

FreeMachineFunction() : FunctionPass(ID) {}

void getAnalysisUsage(AnalysisUsage &AU) const override {
    AU.addRequired<MachineModuleInfoWrapperPass>();
    AU.addPreserved<MachineModuleInfoWrapperPass>();
  }

bool runOnFunction(Function &F) override {
    MachineModuleInfo &MMI =
        getAnalysis<MachineModuleInfoWrapperPass>().getMMI();
    MMI.deleteMachineFunctionFor(F);
    return true;
  }

StringRef getPassName() const override {
    return "Free MachineFunction";
  }
};

} // end anonymous namespace

char FreeMachineFunction::ID;

FunctionPass *llvm::createFreeMachineFunctionPass() {
  return new FreeMachineFunction();
}

MachineModuleInfoWrapperPass::MachineModuleInfoWrapperPass(
    const LLVMTargetMachine *TM)
    : ImmutablePass(ID), MMI(TM) {
  initializeMachineModuleInfoWrapperPassPass(*PassRegistry::getPassRegistry());
}

// Handle the Pass registration stuff necessary to use DataLayout's.
INITIALIZE_PASS(MachineModuleInfoWrapperPass, "machinemoduleinfo",
                "Machine Module Information", false, false)
char MachineModuleInfoWrapperPass::ID = 0;

bool MachineModuleInfoWrapperPass::doInitialization(Module &M) {
  MMI.initialize();
  MMI.TheModule = &M;
  MMI.DbgInfoAvailable = !M.debug_compile_units().empty();
  return false;
}

bool MachineModuleInfoWrapperPass::doFinalization(Module &M) {
  MMI.finalize();
  return false;
}

AnalysisKey MachineModuleAnalysis::Key;

MachineModuleInfo MachineModuleAnalysis::run(Module &M,
                                             ModuleAnalysisManager &) {
  MachineModuleInfo MMI(TM);
  MMI.TheModule = &M;
  MMI.DbgInfoAvailable = !M.debug_compile_units().empty();
  return MMI;
}

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Editing: MachineModuleInfo.cpp

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