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Rename IsPointerType to LVal::IsLValType, and update CFRefCount::EvalSummary to use IsLValType when conjuring symbols for return values (this fixes a bug with an assertion firing in the analyzer when two qualified objective-c types were compared). 

llvm-svn: 50924
This commit is contained in:
Ted Kremenek 2008-05-09 23:45:33 +00:00
parent fa8e15bfa5
commit acdde6f099
5 changed files with 21 additions and 29 deletions
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12
clang/include/clang/Analysis/PathSensitive/GRExprEngine.h
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@ -648,18 +648,6 @@ protected:
ValueState* MarkBranch(ValueState* St, Stmt* Terminator, bool branchTaken);
};
} // end clang namespace
//===----------------------------------------------------------------------===//
// Utility
//===----------------------------------------------------------------------===//
namespace clang {
static inline bool IsPointerType(QualType T) {
return T->isPointerType() || T->isObjCQualifiedIdType();
}
} // end clang namespace

4
clang/include/clang/Analysis/PathSensitive/RValues.h
View File

@ -157,6 +157,10 @@ public:
static inline bool classof(const RVal* V) {
return V->getBaseKind() == LValKind;
}
static inline bool IsLValType(QualType T) {
return T->isPointerType() || T->isObjCQualifiedIdType();
}
};
//==------------------------------------------------------------------------==//

2
clang/lib/Analysis/CFRefCount.cpp
View File

@ -1230,7 +1230,7 @@ void CFRefCount::EvalSummary(ExplodedNodeSet<ValueState>& Dst,
unsigned Count = Builder.getCurrentBlockCount();
SymbolID Sym = Eng.getSymbolManager().getConjuredSymbol(Ex, Count);
RVal X = Ex->getType()->isPointerType()
RVal X = LVal::IsLValType(Ex->getType())
? cast<RVal>(lval::SymbolVal(Sym))
: cast<RVal>(nonlval::SymbolVal(Sym));

18
clang/lib/Analysis/GRExprEngine.cpp
View File

@ -795,7 +795,7 @@ void GRExprEngine::VisitArraySubscriptExpr(ArraySubscriptExpr* A, NodeTy* Pred,
// abstract address of the base object.
NodeSet Tmp;
if (IsPointerType(Base->getType())) // Base always is an LVal.
if (LVal::IsLValType(Base->getType())) // Base always is an LVal.
Visit(Base, Pred, Tmp);
else
VisitLVal(Base, Pred, Tmp);
@ -842,7 +842,7 @@ void GRExprEngine::VisitMemberExpr(MemberExpr* M, NodeTy* Pred,
if (asLVal) {
if (IsPointerType(Base->getType())) // Base always is an LVal.
if (LVal::IsLValType(Base->getType())) // Base always is an LVal.
Visit(Base, Pred, Tmp);
else
VisitLVal(Base, Pred, Tmp);
@ -869,7 +869,7 @@ void GRExprEngine::VisitMemberExpr(MemberExpr* M, NodeTy* Pred,
ValueState* St = GetState(*I);
RVal BaseV = GetRVal(St, Base);
if (IsPointerType(Base->getType())) {
if (LVal::IsLValType(Base->getType())) {
assert (M->isArrow());
@ -1389,7 +1389,7 @@ void GRExprEngine::VisitCast(Expr* CastE, Expr* Ex, NodeTy* Pred, NodeSet& Dst){
}
// Check for casts from pointers to integers.
if (T->isIntegerType() && IsPointerType(ExTy)) {
if (T->isIntegerType() && LVal::IsLValType(ExTy)) {
unsigned bits = getContext().getTypeSize(ExTy);
// FIXME: Determine if the number of bits of the target type is
@ -1402,7 +1402,7 @@ void GRExprEngine::VisitCast(Expr* CastE, Expr* Ex, NodeTy* Pred, NodeSet& Dst){
}
// Check for casts from integers to pointers.
if (IsPointerType(T) && ExTy->isIntegerType())
if (LVal::IsLValType(T) && ExTy->isIntegerType())
if (nonlval::LValAsInteger *LV = dyn_cast<nonlval::LValAsInteger>(&V)) {
// Just unpackage the lval and return it.
V = LV->getLVal();
@ -1481,7 +1481,7 @@ void GRExprEngine::VisitDeclStmtAux(DeclStmt* DS, ScopedDecl* D,
QualType T = VD->getType();
if (IsPointerType(T))
if (LVal::IsLValType(T))
St = SetRVal(St, lval::DeclVal(VD),
lval::ConcreteInt(BasicVals.getValue(0, T)));
else if (T->isIntegerType())
@ -1499,7 +1499,7 @@ void GRExprEngine::VisitDeclStmtAux(DeclStmt* DS, ScopedDecl* D,
QualType T = VD->getType();
if (IsPointerType(T) || T->isIntegerType()) {
if (LVal::IsLValType(T) || T->isIntegerType()) {
RVal V = Ex ? GetRVal(St, Ex) : UndefinedVal();
@ -1510,7 +1510,7 @@ void GRExprEngine::VisitDeclStmtAux(DeclStmt* DS, ScopedDecl* D,
unsigned Count = Builder->getCurrentBlockCount();
SymbolID Sym = SymMgr.getConjuredSymbol(Ex, Count);
V = IsPointerType(Ex->getType())
V = LVal::IsLValType(Ex->getType())
? cast<RVal>(lval::SymbolVal(Sym))
: cast<RVal>(nonlval::SymbolVal(Sym));
}
@ -1965,7 +1965,7 @@ void GRExprEngine::VisitBinaryOperator(BinaryOperator* B,
unsigned Count = Builder->getCurrentBlockCount();
SymbolID Sym = SymMgr.getConjuredSymbol(B->getRHS(), Count);
RightV = IsPointerType(B->getRHS()->getType())
RightV = LVal::IsLValType(B->getRHS()->getType())
? cast<RVal>(lval::SymbolVal(Sym))
: cast<RVal>(nonlval::SymbolVal(Sym));
}

10
clang/lib/Analysis/GRSimpleVals.cpp
View File

@ -379,10 +379,10 @@ RVal GRSimpleVals::EvalCast(GRExprEngine& Eng, NonLVal X, QualType T) {
BasicValueFactory& BasicVals = Eng.getBasicVals();
llvm::APSInt V = cast<nonlval::ConcreteInt>(X).getValue();
V.setIsUnsigned(T->isUnsignedIntegerType() || IsPointerType(T));
V.setIsUnsigned(T->isUnsignedIntegerType() || LVal::IsLValType(T));
V.extOrTrunc(Eng.getContext().getTypeSize(T));
if (IsPointerType(T))
if (LVal::IsLValType(T))
return lval::ConcreteInt(BasicVals.getValue(V));
else
return nonlval::ConcreteInt(BasicVals.getValue(V));
@ -398,7 +398,7 @@ RVal GRSimpleVals::EvalCast(GRExprEngine& Eng, LVal X, QualType T) {
// can be introduced by the frontend for corner cases, e.g
// casting from va_list* to __builtin_va_list&.
//
if (IsPointerType(T) || T->isReferenceType())
if (LVal::IsLValType(T) || T->isReferenceType())
return X;
assert (T->isIntegerType());
@ -409,7 +409,7 @@ RVal GRSimpleVals::EvalCast(GRExprEngine& Eng, LVal X, QualType T) {
BasicValueFactory& BasicVals = Eng.getBasicVals();
llvm::APSInt V = cast<lval::ConcreteInt>(X).getValue();
V.setIsUnsigned(T->isUnsignedIntegerType() || IsPointerType(T));
V.setIsUnsigned(T->isUnsignedIntegerType() || LVal::IsLValType(T));
V.extOrTrunc(Eng.getContext().getTypeSize(T));
return nonlval::ConcreteInt(BasicVals.getValue(V));
@ -672,7 +672,7 @@ void GRSimpleVals::EvalCall(ExplodedNodeSet<ValueState>& Dst,
unsigned Count = Builder.getCurrentBlockCount();
SymbolID Sym = Eng.getSymbolManager().getConjuredSymbol(CE, Count);
RVal X = IsPointerType(CE->getType())
RVal X = LVal::IsLValType(CE->getType())
? cast<RVal>(lval::SymbolVal(Sym))
: cast<RVal>(nonlval::SymbolVal(Sym));