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Added preliminary transfer function support for references. 

llvm-svn: 47912
This commit is contained in:
Ted Kremenek 2008-03-04 22:16:08 +00:00
parent ce556d908b
commit 9f3f827e65
2 changed files with 9 additions and 4 deletions
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11
clang/Analysis/GRExprEngine.cpp
View File

@ -598,10 +598,13 @@ void GRExprEngine::VisitCall(CallExpr* CE, NodeTy* Pred,
void GRExprEngine::VisitCast(Expr* CastE, Expr* Ex, NodeTy* Pred, NodeSet& Dst){
NodeSet S1;
Visit(Ex, Pred, S1);
QualType T = CastE->getType();
if (T->isReferenceType())
VisitLVal(Ex, Pred, S1);
else
Visit(Ex, Pred, S1);
// Check for redundant casts or casting to "void"
if (T->isVoidType() ||
Ex->getType() == T ||
@ -616,7 +619,9 @@ void GRExprEngine::VisitCast(Expr* CastE, Expr* Ex, NodeTy* Pred, NodeSet& Dst){
for (NodeSet::iterator I1 = S1.begin(), E1 = S1.end(); I1 != E1; ++I1) {
NodeTy* N = *I1;
ValueState* St = N->getState();
RVal V = GetRVal(St, Ex);
RVal V = T->isReferenceType() ? GetLVal(St, Ex) : GetRVal(St, Ex);
Nodify(Dst, CastE, N, SetRVal(St, CastE, EvalCast(V, CastE->getType())));
}
}

2
clang/Analysis/GRSimpleVals.cpp
View File

@ -172,7 +172,7 @@ RVal GRSimpleVals::EvalCast(ValueManager& ValMgr, NonLVal X, QualType T) {
RVal GRSimpleVals::EvalCast(ValueManager& ValMgr, LVal X, QualType T) {
if (T->isPointerType())
if (T->isPointerType() || T->isReferenceType())
return X;
assert (T->isIntegerType());