public ExprDomain <SymbolicValue> Binary(APC pc, BinaryOperator op, SymbolicValue dest, SymbolicValue s1, SymbolicValue s2, ExprDomain <SymbolicValue> data)
{
if (this.truth && op.IsEqualityOperator())
{
if (!data.HasRefinement(s1))
{
FlatDomain <Expr <SymbolicValue> > expression2 = data [s2];
if (expression2.IsNormal && !data.IsReachableFrom(s2, s1))
{
return(data.Add(s1, expression2.Concrete));
}
}
else if (!data.HasRefinement(s2))
{
FlatDomain <Expr <SymbolicValue> > expression1 = data [s1];
if (expression1.IsNormal && !data.IsReachableFrom(s1, s2))
{
return(data.Add(s2, expression1.Concrete));
}
}
}
if (!this.truth && op == BinaryOperator.Cne_Un)
{
if (!data.HasRefinement(s1))
{
FlatDomain <Expr <SymbolicValue> > expression2 = data [s2];
if (expression2.IsNormal && !data.IsReachableFrom(s2, s1))
{
return(data.Add(s1, expression2.Concrete));
}
}
else if (!data.HasRefinement(s2))
{
FlatDomain <Expr <SymbolicValue> > expression1 = data [s1];
if (expression1.IsNormal && !data.IsReachableFrom(s1, s2))
{
return(data.Add(s2, expression1.Concrete));
}
}
}
return(data);
}
public ExprDomain <SymbolicValue> EdgeConversion(APC @from, APC to, bool isJoinPoint, EdgeData sourceTargetMap, ExprDomain <SymbolicValue> originalState)
{
if (sourceTargetMap == null)
{
return(originalState);
}
if (DebugOptions.Debug)
{
Console.WriteLine("====Expression analysis Parallel assign====");
DumpMap(sourceTargetMap);
DumpExpressions("original expressions", originalState);
}
ExprDomain <SymbolicValue> result = originalState.Empty();
ExprDomain <SymbolicValue> domain = originalState.Empty();
foreach (SymbolicValue sv in originalState.Keys)
{
Expr <SymbolicValue> expression = originalState [sv].Concrete.Substitute(sourceTargetMap);
if (expression != null)
{
domain = domain.Add(sv, expression);
}
}
foreach (SymbolicValue sv in sourceTargetMap.Keys)
{
FlatDomain <Expr <SymbolicValue> > expressionDomain = domain [sv];
if (expressionDomain.IsNormal)
{
Expr <SymbolicValue> expression = expressionDomain.Concrete;
foreach (SymbolicValue sub in sourceTargetMap[sv].AsEnumerable())
{
result = result.Add(sub, expression);
}
}
}
if (DebugOptions.Debug)
{
DumpExpressions("new expressions", result);
}
return(result);
}
public override ExprDomain <TSymValue> Unary(APC pc, UnaryOperator op, bool unsigned, TSymValue dest, TSymValue source, ExprDomain <TSymValue> data)
{
return(data.Add(dest, new UnaryExpr <TSymValue> (source, op, unsigned)));
}
public override ExprDomain <TSymValue> Sizeof(APC pc, TypeNode type, TSymValue dest, ExprDomain <TSymValue> data)
{
return(data.Add(dest, new SizeOfExpr <TSymValue> (type)));
}
public override ExprDomain <TSymValue> LoadNull(APC pc, TSymValue dest, ExprDomain <TSymValue> polarity)
{
return(polarity.Add(dest, NullExpr <TSymValue> .Instance));
}
public override ExprDomain <TSymValue> LoadConst(APC pc, TypeNode type, object constant, TSymValue dest, ExprDomain <TSymValue> data)
{
return(data.Add(dest, new ConstExpr <TSymValue> (type, constant)));
}
public override ExprDomain <TSymValue> Isinst(APC pc, TypeNode type, TSymValue dest, TSymValue obj, ExprDomain <TSymValue> data)
{
return(data.Add(dest, new IsInstExpr <TSymValue> (obj, type)));
}
public override ExprDomain <TSymValue> Binary(APC pc, BinaryOperator op, TSymValue dest, TSymValue operand1, TSymValue operand2, ExprDomain <TSymValue> data)
{
return(data.Add(dest, new BinaryExpr <TSymValue> (operand1, operand2, op)));
}