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More GRState* -> Store changes. 

llvm-svn: 95357
This commit is contained in:
Zhongxing Xu 2010-02-05 03:01:53 +00:00
parent bd96bf1e78
commit c7b9f950d7
5 changed files with 35 additions and 41 deletions
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4
clang/include/clang/Checker/PathSensitive/GRState.h
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@ -671,11 +671,11 @@ inline SVal GRState::getSValAsScalarOrLoc(const Stmt *S) const {
}
inline SVal GRState::getSVal(Loc LV, QualType T) const {
return getStateManager().StoreMgr->Retrieve(this, LV, T);
return getStateManager().StoreMgr->Retrieve(St, LV, T);
}
inline SVal GRState::getSVal(const MemRegion* R) const {
return getStateManager().StoreMgr->Retrieve(this, loc::MemRegionVal(R));
return getStateManager().StoreMgr->Retrieve(St, loc::MemRegionVal(R));
}
inline BasicValueFactory &GRState::getBasicVals() const {

3
clang/include/clang/Checker/PathSensitive/Store.h
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@ -54,8 +54,7 @@ public:
/// expected type of the returned value. This is used if the value is
/// lazily computed.
/// \return The value bound to the location \c loc.
virtual SVal Retrieve(const GRState *state, Loc loc, QualType T = QualType())
= 0;
virtual SVal Retrieve(Store store, Loc loc, QualType T = QualType()) = 0;
/// Return a state with the specified value bound to the given location.
/// \param[in] state The analysis state.

8
clang/lib/Checker/BasicStore.cpp
View File

@ -44,7 +44,7 @@ public:
return new BasicStoreSubRegionMap();
}
SVal Retrieve(const GRState *state, Loc loc, QualType T = QualType());
SVal Retrieve(Store store, Loc loc, QualType T = QualType());
const GRState *InvalidateRegion(const GRState *state, const MemRegion *R,
const Expr *E, unsigned Count,
@ -249,7 +249,7 @@ static bool isHigherOrderRawPtr(QualType T, ASTContext &C) {
}
}
SVal BasicStoreManager::Retrieve(const GRState *state, Loc loc, QualType T) {
SVal BasicStoreManager::Retrieve(Store store, Loc loc, QualType T) {
if (isa<UnknownVal>(loc))
return UnknownVal();
@ -263,7 +263,7 @@ SVal BasicStoreManager::Retrieve(const GRState *state, Loc loc, QualType T) {
if (!(isa<VarRegion>(R) || isa<ObjCIvarRegion>(R)))
return UnknownVal();
BindingsTy B = GetBindings(state->getStore());
BindingsTy B = GetBindings(store);
BindingsTy::data_type *Val = B.lookup(R);
if (!Val)
@ -394,7 +394,7 @@ BasicStoreManager::RemoveDeadBindings(GRState &state, Stmt* Loc,
break;
Marked.insert(MR);
SVal X = Retrieve(&state, loc::MemRegionVal(MR));
SVal X = Retrieve(state.getStore(), loc::MemRegionVal(MR));
// FIXME: We need to handle symbols nested in region definitions.
for (symbol_iterator SI=X.symbol_begin(),SE=X.symbol_end();SI!=SE;++SI)

4
clang/lib/Checker/FlatStore.cpp
View File

@ -27,7 +27,7 @@ public:
RBFactory(mgr.getAllocator()),
BVFactory(mgr.getAllocator()) {}
SVal Retrieve(const GRState *state, Loc loc, QualType T);
SVal Retrieve(Store store, Loc loc, QualType T);
const GRState *Bind(const GRState *state, Loc loc, SVal val);
Store Remove(Store St, Loc L);
const GRState *BindCompoundLiteral(const GRState *state,
@ -73,7 +73,7 @@ StoreManager *clang::CreateFlatStoreManager(GRStateManager &StMgr) {
return new FlatStoreManager(StMgr);
}
SVal FlatStoreManager::Retrieve(const GRState *state, Loc loc, QualType T) {
SVal FlatStoreManager::Retrieve(Store store, Loc loc, QualType T) {
return UnknownVal();
}

57
clang/lib/Checker/RegionStore.cpp
View File

@ -355,17 +355,17 @@ public: // Part of public interface to class.
/// return undefined
/// else
/// return symbolic
SVal Retrieve(const GRState *state, Loc L, QualType T = QualType());
SVal Retrieve(Store store, Loc L, QualType T = QualType());
SVal RetrieveElement(Store store, const ElementRegion *R);
SVal RetrieveField(Store store, const FieldRegion *R);
SVal RetrieveObjCIvar(const GRState *state, const ObjCIvarRegion *R);
SVal RetrieveObjCIvar(Store store, const ObjCIvarRegion *R);
SVal RetrieveVar(const GRState *state, const VarRegion *R);
SVal RetrieveVar(Store store, const VarRegion *R);
SVal RetrieveLazySymbol(const GRState *state, const TypedRegion *R);
SVal RetrieveLazySymbol(const TypedRegion *R);
SVal RetrieveFieldOrElementCommon(Store store, const TypedRegion *R,
QualType Ty, const MemRegion *superR);
@ -375,9 +375,9 @@ public: // Part of public interface to class.
/// struct s x, y;
/// x = y;
/// y's value is retrieved by this method.
SVal RetrieveStruct(const GRState *St, const TypedRegion* R);
SVal RetrieveStruct(Store store, const TypedRegion* R);
SVal RetrieveArray(const GRState *St, const TypedRegion* R);
SVal RetrieveArray(Store store, const TypedRegion* R);
/// Get the state and region whose binding this region R corresponds to.
std::pair<Store, const MemRegion*>
@ -1095,7 +1095,7 @@ RegionStoreManager::GetElementZeroRegion(const SymbolicRegion *SR, QualType T) {
return MRMgr.getElementRegion(T, idx, SR, Ctx);
}
SVal RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
SVal RegionStoreManager::Retrieve(Store store, Loc L, QualType T) {
assert(!isa<UnknownVal>(L) && "location unknown");
assert(!isa<UndefinedVal>(L) && "location undefined");
@ -1147,21 +1147,21 @@ SVal RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
#endif
if (RTy->isStructureType())
return RetrieveStruct(state, R);
return RetrieveStruct(store, R);
// FIXME: Handle unions.
if (RTy->isUnionType())
return UnknownVal();
if (RTy->isArrayType())
return RetrieveArray(state, R);
return RetrieveArray(store, R);
// FIXME: handle Vector types.
if (RTy->isVectorType())
return UnknownVal();
if (const FieldRegion* FR = dyn_cast<FieldRegion>(R))
return CastRetrievedVal(RetrieveField(state->getStore(), FR), FR, T, false);
return CastRetrievedVal(RetrieveField(store, FR), FR, T, false);
if (const ElementRegion* ER = dyn_cast<ElementRegion>(R)) {
// FIXME: Here we actually perform an implicit conversion from the loaded
@ -1169,7 +1169,7 @@ SVal RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
// more intelligently. For example, an 'element' can encompass multiple
// bound regions (e.g., several bound bytes), or could be a subset of
// a larger value.
return CastRetrievedVal(RetrieveElement(state->getStore(), ER), ER, T, false);
return CastRetrievedVal(RetrieveElement(store, ER), ER, T, false);
}
if (const ObjCIvarRegion *IVR = dyn_cast<ObjCIvarRegion>(R)) {
@ -1179,7 +1179,7 @@ SVal RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
// reinterpretted, it is possible we stored a different value that could
// fit within the ivar. Either we need to cast these when storing them
// or reinterpret them lazily (as we do here).
return CastRetrievedVal(RetrieveObjCIvar(state, IVR), IVR, T, false);
return CastRetrievedVal(RetrieveObjCIvar(store, IVR), IVR, T, false);
}
if (const VarRegion *VR = dyn_cast<VarRegion>(R)) {
@ -1189,10 +1189,10 @@ SVal RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
// variable is reinterpretted, it is possible we stored a different value
// that could fit within the variable. Either we need to cast these when
// storing them or reinterpret them lazily (as we do here).
return CastRetrievedVal(RetrieveVar(state, VR), VR, T, false);
return CastRetrievedVal(RetrieveVar(store, VR), VR, T, false);
}
RegionBindings B = GetRegionBindings(state->getStore());
RegionBindings B = GetRegionBindings(store);
const SVal *V = Lookup(B, R, BindingKey::Direct);
// Check if the region has a binding.
@ -1378,11 +1378,10 @@ SVal RegionStoreManager::RetrieveFieldOrElementCommon(Store store,
return ValMgr.getRegionValueSymbolVal(R, Ty);
}
SVal RegionStoreManager::RetrieveObjCIvar(const GRState* state,
const ObjCIvarRegion* R) {
SVal RegionStoreManager::RetrieveObjCIvar(Store store, const ObjCIvarRegion* R){
// Check if the region has a binding.
RegionBindings B = GetRegionBindings(state->getStore());
RegionBindings B = GetRegionBindings(store);
if (Optional<SVal> V = getDirectBinding(B, R))
return *V;
@ -1398,14 +1397,13 @@ SVal RegionStoreManager::RetrieveObjCIvar(const GRState* state,
return UnknownVal();
}
return RetrieveLazySymbol(state, R);
return RetrieveLazySymbol(R);
}
SVal RegionStoreManager::RetrieveVar(const GRState *state,
const VarRegion *R) {
SVal RegionStoreManager::RetrieveVar(Store store, const VarRegion *R) {
// Check if the region has a binding.
RegionBindings B = GetRegionBindings(state->getStore());
RegionBindings B = GetRegionBindings(store);
if (Optional<SVal> V = getDirectBinding(B, R))
return *V;
@ -1420,8 +1418,7 @@ SVal RegionStoreManager::RetrieveVar(const GRState *state,
return UndefinedVal();
}
SVal RegionStoreManager::RetrieveLazySymbol(const GRState *state,
const TypedRegion *R) {
SVal RegionStoreManager::RetrieveLazySymbol(const TypedRegion *R) {
QualType valTy = R->getValueType(getContext());
@ -1429,8 +1426,7 @@ SVal RegionStoreManager::RetrieveLazySymbol(const GRState *state,
return ValMgr.getRegionValueSymbolVal(R, valTy);
}
SVal RegionStoreManager::RetrieveStruct(const GRState *state,
const TypedRegion* R) {
SVal RegionStoreManager::RetrieveStruct(Store store, const TypedRegion* R) {
QualType T = R->getValueType(getContext());
assert(T->isStructureType());
@ -1450,18 +1446,17 @@ SVal RegionStoreManager::RetrieveStruct(const GRState *state,
Field != FieldEnd; ++Field) {
FieldRegion* FR = MRMgr.getFieldRegion(*Field, R);
QualType FTy = (*Field)->getType();
SVal FieldValue = Retrieve(state, loc::MemRegionVal(FR), FTy).getSVal();
SVal FieldValue = Retrieve(store, loc::MemRegionVal(FR), FTy).getSVal();
StructVal = getBasicVals().consVals(FieldValue, StructVal);
}
return ValMgr.makeCompoundVal(T, StructVal);
#else
return ValMgr.makeLazyCompoundVal(state->getStore(), R);
return ValMgr.makeLazyCompoundVal(store, R);
#endif
}
SVal RegionStoreManager::RetrieveArray(const GRState *state,
const TypedRegion * R) {
SVal RegionStoreManager::RetrieveArray(Store store, const TypedRegion * R) {
#if USE_EXPLICIT_COMPOUND
QualType T = R->getValueType(getContext());
ConstantArrayType* CAT = cast<ConstantArrayType>(T.getTypePtr());
@ -1473,14 +1468,14 @@ SVal RegionStoreManager::RetrieveArray(const GRState *state,
ElementRegion* ER = MRMgr.getElementRegion(CAT->getElementType(), Idx, R,
getContext());
QualType ETy = ER->getElementType();
SVal ElementVal = Retrieve(state, loc::MemRegionVal(ER), ETy).getSVal();
SVal ElementVal = Retrieve(store, loc::MemRegionVal(ER), ETy).getSVal();
ArrayVal = getBasicVals().consVals(ElementVal, ArrayVal);
}
return ValMgr.makeCompoundVal(T, ArrayVal);
#else
assert(isa<ConstantArrayType>(R->getValueType(getContext())));
return ValMgr.makeLazyCompoundVal(state->getStore(), R);
return ValMgr.makeLazyCompoundVal(store, R);
#endif
}