#ifndef TREE_SSA_STRUCTALIAS_H
#define TREE_SSA_STRUCTALIAS_H
+/* True if the data pointed to by PTR can alias anything. */
+#define PTR_IS_REF_ALL(PTR) TYPE_REF_CAN_ALIAS_ALL (TREE_TYPE (PTR))
+
struct constraint;
typedef struct constraint *constraint_t;
+/* Alias information used by compute_may_aliases and its helpers. */
+struct alias_info
+{
+ /* SSA names visited while collecting points-to information. If bit I
+ is set, it means that SSA variable with version I has already been
+ visited. */
+ sbitmap ssa_names_visited;
+
+ /* Array of SSA_NAME pointers processed by the points-to collector. */
+ VEC(tree,heap) *processed_ptrs;
+
+ /* ADDRESSABLE_VARS contains all the global variables and locals that
+ have had their address taken. */
+ struct alias_map_d **addressable_vars;
+ size_t num_addressable_vars;
+
+ /* POINTERS contains all the _DECL pointers with unique memory tags
+ that have been referenced in the program. */
+ struct alias_map_d **pointers;
+ size_t num_pointers;
+
+ /* Number of function calls found in the program. */
+ size_t num_calls_found;
+
+ /* Number of const/pure function calls found in the program. */
+ size_t num_pure_const_calls_found;
+
+ /* Variables that have been written to directly (i.e., not through a
+ pointer dereference). */
+ struct pointer_set_t *written_vars;
+
+ /* Pointers that have been used in an indirect store operation. */
+ struct pointer_set_t *dereferenced_ptrs_store;
+
+ /* Pointers that have been used in an indirect load operation. */
+ struct pointer_set_t *dereferenced_ptrs_load;
+
+ /* Memory tag for all the PTR_IS_REF_ALL pointers. */
+ tree ref_all_symbol_mem_tag;
+};
+
+/* In tree-ssa-alias.c. */
+enum escape_type is_escape_site (tree);
+
+/* In tree-ssa-structalias.c. */
+extern void compute_points_to_sets (struct alias_info *);
+extern void delete_points_to_sets (void);
extern void dump_constraint (FILE *, constraint_t);
extern void dump_constraints (FILE *);
extern void debug_constraint (constraint_t);
extern void debug_solution_for_var (unsigned int);
extern void dump_sa_points_to_info (FILE *);
extern void debug_sa_points_to_info (void);
+extern void set_used_smts (void);
#endif /* TREE_SSA_STRUCTALIAS_H */