public CGCachedExpr(CGExpr expr, CachedAtom cachedAtom, List <CGCachedExpr> caches)
{
this.expr = expr;
this.cachedAtom = cachedAtom;
this.cacheNumber = caches.Count;
caches.Add(this);
}
public override PathCond AndNot(CachedAtom cond) {
if (conds.Contains(cond)) {
return FALSE;
}
else {
return Make(AddItem(this.conds, cond.Negate()));
}
}
public override PathCond AndNot(CachedAtom cond) {
if (this.Equals(cond)) {
return FALSE;
}
else {
return Conj.Make(this, cond.Negate());
}
}
public override PathCond And(CachedAtom cond) {
if (this.EqualsNega(cond)) {
return FALSE;
}
else {
return Conj.Make(this, cond);
}
}
public override PathCond And(CachedAtom cond) {
return Conj.Make(this, cond);
// Alternatively, weed out disjuncts inconsistent with the condition,
// using an order-preserving version of this code:
// HashSet<PathCond> result = new HashSet<PathCond>();
// result.AddAll(conds);
// result.Filter(disj => !(disj is NegAtom && (disj as NegAtom).cond.Equals(cond)
// || disj is Conj && (disj as Conj).conds.Contains(new NegAtom(cond))));
// return Conj.Make(Make(result.ToArray(), new Atom(cond));
}
public override PathCond AndNot(CachedAtom cond)
{
if (conds.Contains(cond))
{
return(FALSE);
}
else
{
return(Make(AddItem(this.conds, cond.Negate())));
}
}
public override PathCond AndNot(CachedAtom cond)
{
if (this.Equals(cond))
{
return(FALSE);
}
else
{
return(Conj.Make(this, cond.Negate()));
}
}
public override PathCond And(CachedAtom cond)
{
return(Conj.Make(this, cond));
// Alternatively, weed out disjuncts inconsistent with the condition,
// using an order-preserving version of this code:
// HashSet<PathCond> result = new HashSet<PathCond>();
// result.AddAll(conds);
// result.Filter(disj => !(disj is NegAtom && (disj as NegAtom).cond.Equals(cond)
// || disj is Conj && (disj as Conj).conds.Contains(new NegAtom(cond))));
// return Conj.Make(Make(result.ToArray(), new Atom(cond));
}
public override void EvalCond(PathCond evalCond,
IDictionary <FullCellAddr, PathCond> evalConds,
List <CGCachedExpr> caches)
{
if (es.Length == 3)
{
CachedAtom atom = new CachedAtom(es[0], caches);
es[0].EvalCond(evalCond, evalConds, caches);
es[0] = atom.cachedExpr;
es[1].EvalCond(evalCond.And(atom), evalConds, caches);
es[2].EvalCond(evalCond.AndNot(atom), evalConds, caches);
}
}
public override void EvalCond(PathCond evalCond,
IDictionary<FullCellAddr, PathCond> evalConds,
List<CGCachedExpr> caches) {
for (int i = 0; i < es.Length; i++) {
es[i].EvalCond(evalCond, evalConds, caches);
if (SHORTCIRCUIT_EVALCONDS && i != es.Length - 1) {
// Take short-circuit evaluation into account for precision
CachedAtom atom = new CachedAtom(es[i], caches);
evalCond = evalCond.AndNot(atom);
es[i] = atom.cachedExpr;
}
}
}
public override void EvalCond(PathCond evalCond,
IDictionary<FullCellAddr, PathCond> evalConds,
List<CGCachedExpr> caches) {
if (es.Length >= 1) {
CachedAtom atom = new CachedAtom(es[0], caches);
CGCachedExpr cached = atom.cachedExpr;
es[0].EvalCond(evalCond, evalConds, caches);
es[0] = cached;
for (int i = 1; i < es.Length; i++) {
CGExpr iConst = CGConst.Make(i);
CGExpr cond = new CGEqual(new CGExpr[] {cached, iConst});
es[i].EvalCond(evalCond.And(new CachedAtom(cond, caches)), evalConds, caches);
}
}
}
public override void EvalCond(PathCond evalCond,
IDictionary <FullCellAddr, PathCond> evalConds,
List <CGCachedExpr> caches)
{
for (int i = 0; i < es.Length; i++)
{
es[i].EvalCond(evalCond, evalConds, caches);
if (SHORTCIRCUIT_EVALCONDS && i != es.Length - 1)
{
// Take short-circuit evaluation into account for precision
CachedAtom atom = new CachedAtom(es[i], caches);
evalCond = evalCond.AndNot(atom);
es[i] = atom.cachedExpr;
}
}
}
public override void EvalCond(PathCond evalCond,
IDictionary <FullCellAddr, PathCond> evalConds,
List <CGCachedExpr> caches)
{
if (es.Length >= 1)
{
CachedAtom atom = new CachedAtom(es[0], caches);
CGCachedExpr cached = atom.cachedExpr;
es[0].EvalCond(evalCond, evalConds, caches);
es[0] = cached;
for (int i = 1; i < es.Length; i++)
{
CGExpr iConst = CGConst.Make(i);
CGExpr cond = new CGEqual(new CGExpr[] { cached, iConst });
es[i].EvalCond(evalCond.And(new CachedAtom(cond, caches)), evalConds, caches);
}
}
}
private CachedAtom(CachedAtom atom, bool negated)
{
this.cachedExpr = atom.cachedExpr;
this.negated = negated;
}
public override void EvalCond(PathCond evalCond,
IDictionary<FullCellAddr, PathCond> evalConds,
List<CGCachedExpr> caches) {
if (es.Length == 3) {
CachedAtom atom = new CachedAtom(es[0], caches);
es[0].EvalCond(evalCond, evalConds, caches);
es[0] = atom.cachedExpr;
es[1].EvalCond(evalCond.And(atom), evalConds, caches);
es[2].EvalCond(evalCond.AndNot(atom), evalConds, caches);
}
}
public CGCachedExpr(CGExpr expr, CachedAtom cachedAtom, List<CGCachedExpr> caches) {
this.expr = expr;
this.cachedAtom = cachedAtom;
this.cacheNumber = caches.Count;
caches.Add(this);
}
private CachedAtom(CachedAtom atom, bool negated) {
this.cachedExpr = atom.cachedExpr;
this.negated = negated;
}
public override PathCond AndNot(CachedAtom cond) { return Conj.Make(this, cond.Negate()); }
public abstract PathCond AndNot(CachedAtom expr);
public override bool Equals(PathCond other)
{
CachedAtom atom = other as CachedAtom;
return(atom != null && cachedExpr.Equals(atom.cachedExpr) && negated == atom.negated);
}
public override PathCond AndNot(CachedAtom cond)
{
return(Conj.Make(this, cond.Negate()));
}
public bool EqualsNega(PathCond other)
{
CachedAtom atom = other as CachedAtom;
return(atom != null && cachedExpr.Equals(atom.cachedExpr) && negated != atom.negated);
}
