1 #ifndef __PREDICTAE_H__
2 #define __PREDICATE_H__
7 unsigned int pred_expr_hash (struct pred_expr *);
8 bool pred_expr_equal(struct pred_expr *, struct pred_expr *);
9 typedef HashSet<struct pred_expr *, uintptr_t, 0, model_malloc, model_calloc, model_free, pred_expr_hash, pred_expr_equal> PredExprSet;
10 typedef HSIterator<struct pred_expr *, uintptr_t, 0, model_malloc, model_calloc, model_free, pred_expr_hash, pred_expr_equal> PredExprSetIter;
12 typedef enum predicate_token {
13 NOPREDICATE, EQUALITY, NULLITY
16 /* If token is EQUALITY, then the predicate asserts whether
17 * this load should read the same value as the last value
18 * read at memory location specified in predicate_expr.
21 pred_expr(token_t token, FuncInst * inst, bool value) :
37 Predicate(FuncInst * func_inst, bool is_entry = false);
40 FuncInst * get_func_inst() { return func_inst; }
41 PredExprSet * get_pred_expressions() { return &pred_expressions; }
43 void add_predicate_expr(token_t token, FuncInst * func_inst, bool value);
44 void add_child(Predicate * child);
45 void set_parent(Predicate * parent_pred) { parent = parent_pred; }
46 void add_backedge(Predicate * back_pred) { backedges.add(back_pred); }
47 void copy_predicate_expr(Predicate * other);
49 ModelVector<Predicate *> * get_children() { return &children; }
50 Predicate * get_parent() { return parent; }
51 PredSet * get_backedges() { return &backedges; }
53 bool is_entry_predicate() { return entry_predicate; }
54 void set_entry_predicate() { entry_predicate = true; }
56 void print_predicate();
57 void print_pred_subtree();
64 /* may have multiple predicate expressions */
65 PredExprSet pred_expressions;
66 ModelVector<Predicate *> children;
68 /* only a single parent may exist */
71 /* may have multiple back edges, e.g. nested loops */
75 #endif /* __PREDICATE_H__ */