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📄 AliasAnalysis.h(51.98 KB)
📄 AliasAnalysisEvaluator.h(2.7 KB)
📄 AliasSetTracker.h(15.42 KB)
📄 AssumeBundleQueries.h(6.66 KB)
📄 AssumptionCache.h(8.39 KB)
📄 BasicAliasAnalysis.h(10.2 KB)
📄 BlockFrequencyInfo.h(5.59 KB)
📄 BlockFrequencyInfoImpl.h(56.46 KB)
📄 BranchProbabilityInfo.h(10.1 KB)
📄 CFG.h(7.76 KB)
📄 CFGPrinter.h(9.31 KB)
📄 CFLAliasAnalysisUtils.h(1.66 KB)
📄 CFLAndersAliasAnalysis.h(3.97 KB)
📄 CFLSteensAliasAnalysis.h(4.58 KB)
📄 CGSCCPassManager.h(41.2 KB)
📄 CallGraph.h(18.88 KB)
📄 CallGraphSCCPass.h(5.01 KB)
📄 CallPrinter.h(799 B)
📄 CaptureTracking.h(4.78 KB)
📄 CmpInstAnalysis.h(2.57 KB)
📄 CodeMetrics.h(3.15 KB)
📄 ConstantFolding.h(8.01 KB)
📄 DDG.h(19.15 KB)
📄 DOTGraphTraitsPass.h(5.5 KB)
📄 DemandedBits.h(4.07 KB)
📄 DependenceAnalysis.h(41.83 KB)
📄 DependenceGraphBuilder.h(7.74 KB)
📄 DivergenceAnalysis.h(7.38 KB)
📄 DomPrinter.h(1.04 KB)
📄 DomTreeUpdater.h(13.2 KB)
📄 DominanceFrontier.h(6.63 KB)
📄 DominanceFrontierImpl.h(7.12 KB)
📄 EHPersonalities.h(3.22 KB)
📄 GlobalsModRef.h(5.96 KB)
📄 GuardUtils.h(2.11 KB)
📄 HeatUtils.h(1.16 KB)
📄 IVDescriptors.h(14.56 KB)
📄 IVUsers.h(6.07 KB)
📄 IndirectCallPromotionAnalysis.h(2.61 KB)
📄 IndirectCallVisitor.h(1.16 KB)
📄 InlineAdvisor.h(8.71 KB)
📄 InlineCost.h(11.33 KB)
📄 InlineFeaturesAnalysis.h(1.5 KB)
📄 InlineModelFeatureMaps.h(3.41 KB)
📄 InlineSizeEstimatorAnalysis.h(1.07 KB)
📄 InstructionPrecedenceTracking.h(5.9 KB)
📄 InstructionSimplify.h(13.36 KB)
📄 Interval.h(4.84 KB)
📄 IntervalIterator.h(10.64 KB)
📄 IntervalPartition.h(4.05 KB)
📄 IteratedDominanceFrontier.h(2.62 KB)
📄 LazyBlockFrequencyInfo.h(4.34 KB)
📄 LazyBranchProbabilityInfo.h(4.21 KB)
📄 LazyCallGraph.h(50.13 KB)
📄 LazyValueInfo.h(5.4 KB)
📄 LegacyDivergenceAnalysis.h(2.53 KB)
📄 Lint.h(1.35 KB)
📄 Loads.h(7.86 KB)
📄 LoopAccessAnalysis.h(29.75 KB)
📄 LoopAnalysisManager.h(5.83 KB)
📄 LoopCacheAnalysis.h(11.91 KB)
📄 LoopInfo.h(48.27 KB)
📄 LoopInfoImpl.h(27.14 KB)
📄 LoopIterator.h(8.83 KB)
📄 LoopNestAnalysis.h(5.61 KB)
📄 LoopPass.h(4.29 KB)
📄 LoopUnrollAnalyzer.h(3.42 KB)
📄 MLInlineAdvisor.h(3.48 KB)
📄 MLModelRunner.h(1.16 KB)
📄 MemoryBuiltins.h(13.42 KB)
📄 MemoryDependenceAnalysis.h(20.82 KB)
📄 MemoryLocation.h(10.99 KB)
📄 MemorySSA.h(45.92 KB)
📄 MemorySSAUpdater.h(14.55 KB)
📄 ModuleSummaryAnalysis.h(3.44 KB)
📄 MustExecute.h(20.2 KB)
📄 ObjCARCAliasAnalysis.h(3.35 KB)
📄 ObjCARCAnalysisUtils.h(10.22 KB)
📄 ObjCARCInstKind.h(4.87 KB)
📄 OptimizationRemarkEmitter.h(5.93 KB)
📄 PHITransAddr.h(4.77 KB)
📄 Passes.h(3.88 KB)
📄 PhiValues.h(5.25 KB)
📄 PostDominators.h(3.41 KB)
📄 ProfileSummaryInfo.h(9.3 KB)
📄 PtrUseVisitor.h(9.96 KB)
📄 RegionInfo.h(35.23 KB)
📄 RegionInfoImpl.h(25.16 KB)
📄 RegionIterator.h(14.07 KB)
📄 RegionPass.h(4.05 KB)
📄 RegionPrinter.h(2.25 KB)
📄 ScalarEvolution.h(89.21 KB)
📄 ScalarEvolutionAliasAnalysis.h(2.09 KB)
📄 ScalarEvolutionDivision.h(2.48 KB)
📄 ScalarEvolutionExpressions.h(28.61 KB)
📄 ScalarEvolutionNormalization.h(2.47 KB)
📄 ScopedNoAliasAA.h(2.83 KB)
📄 SparsePropagation.h(19.43 KB)
📄 StackLifetime.h(6.16 KB)
📄 StackSafetyAnalysis.h(4.91 KB)
📄 SyncDependenceAnalysis.h(2.85 KB)
📄 SyntheticCountsUtils.h(1.85 KB)
📄 TargetFolder.h(11.04 KB)
📄 TargetLibraryInfo.def(55.35 KB)
📄 TargetLibraryInfo.h(16.86 KB)
📄 TargetTransformInfo.h(96.51 KB)
📄 TargetTransformInfoImpl.h(37.63 KB)
📄 Trace.h(4.1 KB)
📄 TypeBasedAliasAnalysis.h(3.05 KB)
📄 TypeMetadataUtils.h(1.94 KB)
📁 Utils
📄 ValueLattice.h(15.14 KB)
📄 ValueLatticeUtils.h(1.66 KB)
📄 ValueTracking.h(35.82 KB)
📄 VecFuncs.def(10.94 KB)
📄 VectorUtils.h(37.26 KB)

Editing: ObjCARCInstKind.h

//===- ObjCARCInstKind.h - ARC instruction equivalence classes --*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ANALYSIS_OBJCARCINSTKIND_H
#define LLVM_ANALYSIS_OBJCARCINSTKIND_H

#include "llvm/IR/Instructions.h"

namespace llvm {
namespace objcarc {

/// \enum ARCInstKind
///
/// Equivalence classes of instructions in the ARC Model.
///
/// Since we do not have "instructions" to represent ARC concepts in LLVM IR,
/// we instead operate on equivalence classes of instructions.
///
/// TODO: This should be split into two enums: a runtime entry point enum
/// (possibly united with the ARCRuntimeEntrypoint class) and an enum that deals
/// with effects of instructions in the ARC model (which would handle the notion
/// of a User or CallOrUser).
enum class ARCInstKind {
  Retain,                   ///< objc_retain
  RetainRV,                 ///< objc_retainAutoreleasedReturnValue
  ClaimRV,                  ///< objc_unsafeClaimAutoreleasedReturnValue
  RetainBlock,              ///< objc_retainBlock
  Release,                  ///< objc_release
  Autorelease,              ///< objc_autorelease
  AutoreleaseRV,            ///< objc_autoreleaseReturnValue
  AutoreleasepoolPush,      ///< objc_autoreleasePoolPush
  AutoreleasepoolPop,       ///< objc_autoreleasePoolPop
  NoopCast,                 ///< objc_retainedObject, etc.
  FusedRetainAutorelease,   ///< objc_retainAutorelease
  FusedRetainAutoreleaseRV, ///< objc_retainAutoreleaseReturnValue
  LoadWeakRetained,         ///< objc_loadWeakRetained (primitive)
  StoreWeak,                ///< objc_storeWeak (primitive)
  InitWeak,                 ///< objc_initWeak (derived)
  LoadWeak,                 ///< objc_loadWeak (derived)
  MoveWeak,                 ///< objc_moveWeak (derived)
  CopyWeak,                 ///< objc_copyWeak (derived)
  DestroyWeak,              ///< objc_destroyWeak (derived)
  StoreStrong,              ///< objc_storeStrong (derived)
  IntrinsicUser,            ///< llvm.objc.clang.arc.use
  CallOrUser,               ///< could call objc_release and/or "use" pointers
  Call,                     ///< could call objc_release
  User,                     ///< could "use" a pointer
  None                      ///< anything that is inert from an ARC perspective.
};

raw_ostream &operator<<(raw_ostream &OS, const ARCInstKind Class);

/// Test if the given class is a kind of user.
bool IsUser(ARCInstKind Class);

/// Test if the given class is objc_retain or equivalent.
bool IsRetain(ARCInstKind Class);

/// Test if the given class is objc_autorelease or equivalent.
bool IsAutorelease(ARCInstKind Class);

/// Test if the given class represents instructions which return their
/// argument verbatim.
bool IsForwarding(ARCInstKind Class);

/// Test if the given class represents instructions which do nothing if
/// passed a null pointer.
bool IsNoopOnNull(ARCInstKind Class);

/// Test if the given class represents instructions which do nothing if
/// passed a global variable.
bool IsNoopOnGlobal(ARCInstKind Class);

/// Test if the given class represents instructions which are always safe
/// to mark with the "tail" keyword.
bool IsAlwaysTail(ARCInstKind Class);

/// Test if the given class represents instructions which are never safe
/// to mark with the "tail" keyword.
bool IsNeverTail(ARCInstKind Class);

/// Test if the given class represents instructions which are always safe
/// to mark with the nounwind attribute.
bool IsNoThrow(ARCInstKind Class);

/// Test whether the given instruction can autorelease any pointer or cause an
/// autoreleasepool pop.
bool CanInterruptRV(ARCInstKind Class);

/// Determine if F is one of the special known Functions.  If it isn't,
/// return ARCInstKind::CallOrUser.
ARCInstKind GetFunctionClass(const Function *F);

/// Determine which objc runtime call instruction class V belongs to.
///
/// This is similar to GetARCInstKind except that it only detects objc
/// runtime calls. This allows it to be faster.
///
inline ARCInstKind GetBasicARCInstKind(const Value *V) {
  if (const CallInst *CI = dyn_cast<CallInst>(V)) {
    if (const Function *F = CI->getCalledFunction())
      return GetFunctionClass(F);
    // Otherwise, be conservative.
    return ARCInstKind::CallOrUser;
  }

// Otherwise, be conservative.
  return isa<InvokeInst>(V) ? ARCInstKind::CallOrUser : ARCInstKind::User;
}

/// Map V to its ARCInstKind equivalence class.
ARCInstKind GetARCInstKind(const Value *V);

/// Returns false if conservatively we can prove that any instruction mapped to
/// this kind can not decrement ref counts. Returns true otherwise.
bool CanDecrementRefCount(ARCInstKind Kind);

} // end namespace objcarc
} // end namespace llvm

#endif

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Editing: ObjCARCInstKind.h

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