public void addEdge(CGNode src, CGNode dst) {
// we assume that this is called from ExplicitNode.addTarget().
// so we only have to track the inverse edge.
int x = getNumber(src);
int y = getNumber(dst);
predecessors.add(y, x);
}
public boolean hasEdge(CGNode src, CGNode dst) {
int x = getNumber(src);
int y = getNumber(dst);
return predecessors.contains(y, x);
}
protected void addEdge(int x, int y) {
// we only have to track the inverse edge.
predecessors.add(y, x);
}
public void removeEdge(CGNode src, CGNode dst) {
int x = getNumber(src);
int y = getNumber(dst);
predecessors.remove(y, x);
}
public int getPredNodeCount(CGNode N) {
ExplicitNode n = (ExplicitNode) N;
int y = getNumber(n);
return predecessors.getRelatedCount(y);
}
public IntSet getPredNodeNumbers(CGNode node) {
ExplicitNode n = (ExplicitNode) node;
int y = getNumber(n);
return predecessors.getRelated(y);
}