LLVM API Documentation

Namespaces | Enumerations | Functions
DependencyAnalysis.h File Reference
#include "llvm/ADT/SmallPtrSet.h"
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Namespaces

namespace  llvm
 

List of target independent CodeGen pass IDs.


namespace  llvm::objcarc

Enumerations

enum  llvm::objcarc::DependenceKind {
  llvm::objcarc::NeedsPositiveRetainCount, llvm::objcarc::AutoreleasePoolBoundary, llvm::objcarc::CanChangeRetainCount, llvm::objcarc::RetainAutoreleaseDep,
  llvm::objcarc::RetainAutoreleaseRVDep, llvm::objcarc::RetainRVDep
}
 Defines different dependence kinds among various ARC constructs. More...

Functions

void llvm::objcarc::FindDependencies (DependenceKind Flavor, const Value *Arg, BasicBlock *StartBB, Instruction *StartInst, SmallPtrSet< Instruction *, 4 > &DependingInstructions, SmallPtrSet< const BasicBlock *, 4 > &Visited, ProvenanceAnalysis &PA)
bool llvm::objcarc::Depends (DependenceKind Flavor, Instruction *Inst, const Value *Arg, ProvenanceAnalysis &PA)
bool llvm::objcarc::CanUse (const Instruction *Inst, const Value *Ptr, ProvenanceAnalysis &PA, InstructionClass Class)
bool llvm::objcarc::CanAlterRefCount (const Instruction *Inst, const Value *Ptr, ProvenanceAnalysis &PA, InstructionClass Class)

Detailed Description

This file declares special dependency analysis routines used in Objective C ARC Optimizations.

WARNING: This file knows about certain library functions. It recognizes them by name, and hardwires knowledge of their semantics.

WARNING: This file knows about how certain Objective-C library functions are used. Naive LLVM IR transformations which would otherwise be behavior-preserving may break these assumptions.

Definition in file DependencyAnalysis.h.