Change use to type-based pool allocator in

	* tree-ssa-structalias.c (new_var_info): Use new type-based pool allocator.
	(new_constraint): Likewise.
	(init_alias_vars): Likewise.
	(delete_points_to_sets): Likewise.

From-SVN: r223967

gcc/ChangeLog

 2015-06-01  Martin Liska  <mliska@suse.cz>
 
+	* tree-ssa-structalias.c (new_var_info): Use new type-based pool allocator.
+	(new_constraint): Likewise.
+	(init_alias_vars): Likewise.
+	(delete_points_to_sets): Likewise.
+
+2015-06-01  Martin Liska  <mliska@suse.cz>
+
 	* tree-ssa-strlen.c (new_strinfo): Use new type-based pool allocator.
 	(free_strinfo): Likewise.
 	(pass_strlen::execute): Likewise.

gcc/tree-ssa-structalias.c

@@ -354,7 +354,8 @@ static varinfo_t lookup_vi_for_tree (tree);
 static inline bool type_can_have_subvars (const_tree);
 
 /* Pool of variable info structures.  */
-static alloc_pool variable_info_pool;
+static pool_allocator<variable_info> variable_info_pool
+  ("Variable info pool", 30);
 
 /* Map varinfo to final pt_solution.  */
 static hash_map<varinfo_t, pt_solution *> *final_solutions;
@@ -395,7 +396,7 @@ static varinfo_t
 new_var_info (tree t, const char *name)
 {
   unsigned index = varmap.length ();
-  varinfo_t ret = (varinfo_t) pool_alloc (variable_info_pool);
+  varinfo_t ret = variable_info_pool.allocate ();
 
   ret->id = index;
   ret->name = name;
@@ -554,7 +555,7 @@ struct constraint
 /* List of constraints that we use to build the constraint graph from.  */
 
 static vec<constraint_t> constraints;
-static alloc_pool constraint_pool;
+static pool_allocator<constraint> constraint_pool ("Constraint pool", 30);
 
 /* The constraint graph is represented as an array of bitmaps
    containing successor nodes.  */
@@ -676,7 +677,7 @@ static constraint_t
 new_constraint (const struct constraint_expr lhs,
 		const struct constraint_expr rhs)
 {
-  constraint_t ret = (constraint_t) pool_alloc (constraint_pool);
+  constraint_t ret = constraint_pool.allocate ();
   ret->lhs = lhs;
   ret->rhs = rhs;
   return ret;
@@ -6681,10 +6682,6 @@ init_alias_vars (void)
   bitmap_obstack_initialize (&oldpta_obstack);
   bitmap_obstack_initialize (&predbitmap_obstack);
 
-  constraint_pool = create_alloc_pool ("Constraint pool",
-				       sizeof (struct constraint), 30);
-  variable_info_pool = create_alloc_pool ("Variable info pool",
-					  sizeof (struct variable_info), 30);
   constraints.create (8);
   varmap.create (8);
   vi_for_tree = new hash_map<tree, varinfo_t>;
@@ -6964,8 +6961,8 @@ delete_points_to_sets (void)
   free (graph);
 
   varmap.release ();
-  free_alloc_pool (variable_info_pool);
-  free_alloc_pool (constraint_pool);
+  variable_info_pool.release ();
+  constraint_pool.release ();
 
   obstack_free (&fake_var_decl_obstack, NULL);