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📄 AbstractCallSite.h(9.5 KB)
📄 Argument.h(5.03 KB)
📄 AssemblyAnnotationWriter.h(2.2 KB)
📄 Attributes.h(35.5 KB)
📄 Attributes.td(8.96 KB)
📄 AutoUpgrade.h(3.96 KB)
📄 BasicBlock.h(21.91 KB)
📄 CFG.h(13.84 KB)
📄 CallingConv.h(9.27 KB)
📄 Comdat.h(2.16 KB)
📄 Constant.h(8.33 KB)
📄 ConstantFolder.h(10.01 KB)
📄 ConstantRange.h(21.6 KB)
📄 Constants.h(53.03 KB)
📄 ConstrainedOps.def(5.4 KB)
📄 DIBuilder.h(44.36 KB)
📄 DataLayout.h(24.11 KB)
📄 DebugInfo.h(5.42 KB)
📄 DebugInfoFlags.def(3.62 KB)
📄 DebugInfoMetadata.h(132.91 KB)
📄 DebugLoc.h(4.57 KB)
📄 DerivedTypes.h(26.81 KB)
📄 DerivedUser.h(1.32 KB)
📄 DiagnosticHandler.h(2.89 KB)
📄 DiagnosticInfo.h(41.02 KB)
📄 DiagnosticPrinter.h(3.46 KB)
📄 Dominators.h(9.94 KB)
📄 FPEnv.h(1.97 KB)
📄 FixedMetadataKinds.def(2.05 KB)
📄 Function.h(31.39 KB)
📄 GVMaterializer.h(1.45 KB)
📄 GetElementPtrTypeIterator.h(5.54 KB)
📄 GlobalAlias.h(3.16 KB)
📄 GlobalIFunc.h(2.51 KB)
📄 GlobalIndirectSymbol.h(3.11 KB)
📄 GlobalObject.h(7.39 KB)
📄 GlobalValue.h(21.2 KB)
📄 GlobalVariable.h(9.6 KB)
📄 IRBuilder.h(105.58 KB)
📄 IRBuilderFolder.h(7.1 KB)
📄 IRPrintingPasses.h(3.57 KB)
📄 InlineAsm.h(15.84 KB)
📄 InstIterator.h(5.06 KB)
📄 InstVisitor.h(13.95 KB)
📄 InstrTypes.h(86.25 KB)
📄 Instruction.def(8.53 KB)
📄 Instruction.h(30.74 KB)
📄 Instructions.h(195.68 KB)
📄 IntrinsicInst.h(29.03 KB)
📄 Intrinsics.h(8.21 KB)
📄 Intrinsics.td(78.88 KB)
📄 IntrinsicsAArch64.td(100.59 KB)
📄 IntrinsicsAMDGPU.td(80.43 KB)
📄 IntrinsicsARM.td(65.15 KB)
📄 IntrinsicsBPF.td(1.54 KB)
📄 IntrinsicsHexagon.td(11.53 KB)
📄 IntrinsicsHexagonDep.td(197.38 KB)
📄 IntrinsicsMips.td(94.94 KB)
📄 IntrinsicsNVVM.td(193.97 KB)
📄 IntrinsicsPowerPC.td(68.23 KB)
📄 IntrinsicsRISCV.td(3.24 KB)
📄 IntrinsicsSystemZ.td(18.56 KB)
📄 IntrinsicsWebAssembly.td(9.38 KB)
📄 IntrinsicsX86.td(242.99 KB)
📄 IntrinsicsXCore.td(6.83 KB)
📄 LLVMContext.h(14.18 KB)
📄 LLVMRemarkStreamer.h(3.36 KB)
📄 LegacyPassManager.h(3.11 KB)
📄 LegacyPassManagers.h(18.17 KB)
📄 LegacyPassNameParser.h(3.73 KB)
📄 MDBuilder.h(8.65 KB)
📄 Mangler.h(2.06 KB)
📄 MatrixBuilder.h(8.81 KB)
📄 Metadata.def(5.07 KB)
📄 Metadata.h(45.24 KB)
📄 Module.h(34.6 KB)
📄 ModuleSlotTracker.h(2.56 KB)
📄 ModuleSummaryIndex.h(58.12 KB)
📄 ModuleSummaryIndexYAML.h(10.93 KB)
📄 NoFolder.h(11.32 KB)
📄 OperandTraits.h(5.78 KB)
📄 Operator.h(19.58 KB)
📄 OptBisect.h(2.79 KB)
📄 PassInstrumentation.h(8.05 KB)
📄 PassManager.h(54.18 KB)
📄 PassManagerImpl.h(5.76 KB)
📄 PassManagerInternal.h(11.9 KB)
📄 PassTimingInfo.h(3.65 KB)
📄 PatternMatch.h(73.41 KB)
📄 PredIteratorCache.h(2.59 KB)
📄 ProfileSummary.h(4.34 KB)
📄 RuntimeLibcalls.def(24.52 KB)
📄 SafepointIRVerifier.h(1.63 KB)
📄 Statepoint.h(13.61 KB)
📄 SymbolTableListTraits.h(4.45 KB)
📄 TrackingMDRef.h(4.5 KB)
📄 Type.h(18.98 KB)
📄 TypeFinder.h(2.57 KB)
📄 Use.h(3.75 KB)
📄 UseListOrder.h(1.18 KB)
📄 User.h(11.75 KB)
📄 VPIntrinsics.def(2.34 KB)
📄 Value.def(3.62 KB)
📄 Value.h(32.16 KB)
📄 ValueHandle.h(18.11 KB)
📄 ValueMap.h(14.09 KB)
📄 ValueSymbolTable.h(4.22 KB)
📄 Verifier.h(5.47 KB)

Editing: TrackingMDRef.h

//===- llvm/IR/TrackingMDRef.h - Tracking Metadata references ---*- 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
//
//===----------------------------------------------------------------------===//
//
// References to metadata that track RAUW.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_TRACKINGMDREF_H
#define LLVM_IR_TRACKINGMDREF_H

#include "llvm/IR/Metadata.h"
#include <algorithm>
#include <cassert>

namespace llvm {

/// Tracking metadata reference.
///
/// This class behaves like \a TrackingVH, but for metadata.
class TrackingMDRef {
  Metadata *MD = nullptr;

public:
  TrackingMDRef() = default;
  explicit TrackingMDRef(Metadata *MD) : MD(MD) { track(); }

TrackingMDRef(TrackingMDRef &&X) : MD(X.MD) { retrack(X); }
  TrackingMDRef(const TrackingMDRef &X) : MD(X.MD) { track(); }

TrackingMDRef &operator=(TrackingMDRef &&X) {
    if (&X == this)
      return *this;

untrack();
    MD = X.MD;
    retrack(X);
    return *this;
  }

TrackingMDRef &operator=(const TrackingMDRef &X) {
    if (&X == this)
      return *this;

untrack();
    MD = X.MD;
    track();
    return *this;
  }

~TrackingMDRef() { untrack(); }

Metadata *get() const { return MD; }
  operator Metadata *() const { return get(); }
  Metadata *operator->() const { return get(); }
  Metadata &operator*() const { return *get(); }

void reset() {
    untrack();
    MD = nullptr;
  }
  void reset(Metadata *MD) {
    untrack();
    this->MD = MD;
    track();
  }

/// Check whether this has a trivial destructor.
  ///
  /// If \c MD isn't replaceable, the destructor will be a no-op.
  bool hasTrivialDestructor() const {
    return !MD || !MetadataTracking::isReplaceable(*MD);
  }

bool operator==(const TrackingMDRef &X) const { return MD == X.MD; }
  bool operator!=(const TrackingMDRef &X) const { return MD != X.MD; }

private:
  void track() {
    if (MD)
      MetadataTracking::track(MD);
  }

void untrack() {
    if (MD)
      MetadataTracking::untrack(MD);
  }

void retrack(TrackingMDRef &X) {
    assert(MD == X.MD && "Expected values to match");
    if (X.MD) {
      MetadataTracking::retrack(X.MD, MD);
      X.MD = nullptr;
    }
  }
};

/// Typed tracking ref.
///
/// Track refererences of a particular type.  It's useful to use this for \a
/// MDNode and \a ValueAsMetadata.
template <class T> class TypedTrackingMDRef {
  TrackingMDRef Ref;

public:
  TypedTrackingMDRef() = default;
  explicit TypedTrackingMDRef(T *MD) : Ref(static_cast<Metadata *>(MD)) {}

TypedTrackingMDRef(TypedTrackingMDRef &&X) : Ref(std::move(X.Ref)) {}
  TypedTrackingMDRef(const TypedTrackingMDRef &X) : Ref(X.Ref) {}

TypedTrackingMDRef &operator=(TypedTrackingMDRef &&X) {
    Ref = std::move(X.Ref);
    return *this;
  }

TypedTrackingMDRef &operator=(const TypedTrackingMDRef &X) {
    Ref = X.Ref;
    return *this;
  }

T *get() const { return (T *)Ref.get(); }
  operator T *() const { return get(); }
  T *operator->() const { return get(); }
  T &operator*() const { return *get(); }

bool operator==(const TypedTrackingMDRef &X) const { return Ref == X.Ref; }
  bool operator!=(const TypedTrackingMDRef &X) const { return Ref != X.Ref; }

void reset() { Ref.reset(); }
  void reset(T *MD) { Ref.reset(static_cast<Metadata *>(MD)); }

/// Check whether this has a trivial destructor.
  bool hasTrivialDestructor() const { return Ref.hasTrivialDestructor(); }
};

using TrackingMDNodeRef = TypedTrackingMDRef<MDNode>;
using TrackingValueAsMetadataRef = TypedTrackingMDRef<ValueAsMetadata>;

// Expose the underlying metadata to casting.
template <> struct simplify_type<TrackingMDRef> {
  using SimpleType = Metadata *;

static SimpleType getSimplifiedValue(TrackingMDRef &MD) { return MD.get(); }
};

template <> struct simplify_type<const TrackingMDRef> {
  using SimpleType = Metadata *;

static SimpleType getSimplifiedValue(const TrackingMDRef &MD) {
    return MD.get();
  }
};

template <class T> struct simplify_type<TypedTrackingMDRef<T>> {
  using SimpleType = T *;

static SimpleType getSimplifiedValue(TypedTrackingMDRef<T> &MD) {
    return MD.get();
  }
};

template <class T> struct simplify_type<const TypedTrackingMDRef<T>> {
  using SimpleType = T *;

static SimpleType getSimplifiedValue(const TypedTrackingMDRef<T> &MD) {
    return MD.get();
  }
};

} // end namespace llvm

#endif // LLVM_IR_TRACKINGMDREF_H

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