clang  8.0.0svn
Classes | Namespaces | Typedefs | Enumerations | Functions
RegionStore.cpp File Reference
#include "clang/AST/Attr.h"
#include "clang/AST/CharUnits.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Analysis/Analyses/LiveVariables.h"
#include "clang/Analysis/AnalysisDeclContext.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/MemRegion.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramStateTrait.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/SubEngine.h"
#include "llvm/ADT/ImmutableMap.h"
#include "llvm/ADT/Optional.h"
#include "llvm/Support/raw_ostream.h"
#include <utility>
Include dependency graph for RegionStore.cpp:

Go to the source code of this file.

Classes

struct  llvm::isPodLike< typename >
 
struct  llvm::isPodLike< BindingKey >
 

Namespaces

 llvm
 DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterators.
 

Typedefs

typedef llvm::ImmutableMap< BindingKey, SVal > ClusterBindings
 
typedef llvm::ImmutableMapRef< BindingKey, SVal > ClusterBindingsRef
 
typedef std::pair< BindingKey, SVal > BindingPair
 
typedef llvm::ImmutableMap< const MemRegion *, ClusterBindingsRegionBindings
 
typedef const RegionBindingsRef & RegionBindingsConstRef
 
typedef SmallVector< const FieldDecl *, 8 > FieldVector
 

Enumerations

enum  GlobalsFilterKind
 Used to determine which global regions are automatically included in the initial worklist of a ClusterAnalysis. More...
 

Functions

static raw_ostream & llvm::operator<< (raw_ostream &os, BindingKey K)
 
static bool isUnionField (const FieldRegion *FR)
 
static void getSymbolicOffsetFields (BindingKey K, FieldVector &Fields)
 
static bool isCompatibleWithFields (BindingKey K, const FieldVector &Fields)
 
static void collectSubRegionBindings (SmallVectorImpl< BindingPair > &Bindings, SValBuilder &SVB, const ClusterBindings &Cluster, const SubRegion *Top, BindingKey TopKey, bool IncludeAllDefaultBindings)
 Collects all bindings in Cluster that may refer to bindings within Top. More...
 
static void collectSubRegionBindings (SmallVectorImpl< BindingPair > &Bindings, SValBuilder &SVB, const ClusterBindings &Cluster, const SubRegion *Top, bool IncludeAllDefaultBindings)
 
static QualType getUnderlyingType (const SubRegion *R)
 
static Optional< nonloc::LazyCompoundVal > getExistingLazyBinding (SValBuilder &SVB, RegionBindingsConstRef B, const SubRegion *R, bool AllowSubregionBindings)
 Checks to see if store B has a lazy binding for region R. More...
 
static bool isRecordEmpty (const RecordDecl *RD)
 

Typedef Documentation

◆ BindingPair

typedef std::pair<BindingKey, SVal> BindingPair

Definition at line 150 of file RegionStore.cpp.

◆ ClusterBindings

typedef llvm::ImmutableMap<BindingKey, SVal> ClusterBindings

Definition at line 148 of file RegionStore.cpp.

◆ ClusterBindingsRef

typedef llvm::ImmutableMapRef<BindingKey, SVal> ClusterBindingsRef

Definition at line 149 of file RegionStore.cpp.

◆ FieldVector

typedef SmallVector<const FieldDecl *, 8> FieldVector

Definition at line 776 of file RegionStore.cpp.

◆ RegionBindings

typedef llvm::ImmutableMap<const MemRegion *, ClusterBindings> RegionBindings

Definition at line 153 of file RegionStore.cpp.

◆ RegionBindingsConstRef

typedef const RegionBindingsRef& RegionBindingsConstRef

Definition at line 229 of file RegionStore.cpp.

Enumeration Type Documentation

◆ GlobalsFilterKind

Used to determine which global regions are automatically included in the initial worklist of a ClusterAnalysis.

Definition at line 652 of file RegionStore.cpp.

Function Documentation

◆ collectSubRegionBindings() [1/2]

static void collectSubRegionBindings ( SmallVectorImpl< BindingPair > &  Bindings,
SValBuilder &  SVB,
const ClusterBindings Cluster,
const SubRegion *  Top,
BindingKey  TopKey,
bool  IncludeAllDefaultBindings 
)
static

Collects all bindings in Cluster that may refer to bindings within Top.

Each binding is a pair whose first is the key (a BindingKey) and whose second is the value (an SVal).

The IncludeAllDefaultBindings parameter specifies whether to include default bindings that may extend beyond Top itself, e.g. if Top is an aggregate within a larger aggregate with a default binding.

Definition at line 822 of file RegionStore.cpp.

References clang::Default, getSymbolicOffsetFields(), isCompatibleWithFields(), and clang::Make.

Referenced by collectSubRegionBindings(), and getExistingLazyBinding().

◆ collectSubRegionBindings() [2/2]

static void collectSubRegionBindings ( SmallVectorImpl< BindingPair > &  Bindings,
SValBuilder &  SVB,
const ClusterBindings Cluster,
const SubRegion *  Top,
bool  IncludeAllDefaultBindings 
)
static

◆ getExistingLazyBinding()

static Optional<nonloc::LazyCompoundVal> getExistingLazyBinding ( SValBuilder &  SVB,
RegionBindingsConstRef  B,
const SubRegion *  R,
bool  AllowSubregionBindings 
)
static

Checks to see if store B has a lazy binding for region R.

If AllowSubregionBindings is false, a lazy binding will be rejected if there are additional bindings within R.

Note that unlike RegionStoreManager::findLazyBinding, this will not search for lazy bindings for super-regions of R.

Definition at line 1548 of file RegionStore.cpp.

References collectSubRegionBindings(), clang::StringLiteral::getCodeUnit(), clang::FieldDecl::getInClassInitializer(), clang::VarDecl::getInit(), clang::StringLiteral::getLength(), clang::ValueDecl::getType(), getUnderlyingType(), clang::QualType::isConstQualified(), clang::QualType::isNull(), clang::Type::isScalarType(), clang::Type::isVoidPointerType(), and length().

◆ getSymbolicOffsetFields()

static void getSymbolicOffsetFields ( BindingKey  K,
FieldVector Fields 
)
static

Definition at line 778 of file RegionStore.cpp.

References isUnionField().

Referenced by collectSubRegionBindings(), and isCompatibleWithFields().

◆ getUnderlyingType()

static QualType getUnderlyingType ( const SubRegion *  R)
static

◆ isCompatibleWithFields()

static bool isCompatibleWithFields ( BindingKey  K,
const FieldVector Fields 
)
static

Definition at line 793 of file RegionStore.cpp.

References getSymbolicOffsetFields().

Referenced by collectSubRegionBindings().

◆ isRecordEmpty()

static bool isRecordEmpty ( const RecordDecl RD)
static

◆ isUnionField()

static bool isUnionField ( const FieldRegion *  FR)
inlinestatic

Definition at line 772 of file RegionStore.cpp.

Referenced by getSymbolicOffsetFields().