Change use to type-based pool allocator in cfg.c.

	* cfg.c (initialize_original_copy_tables):Use new type-based pool allocator.
	(free_original_copy_tables) Likewise.
	(copy_original_table_clear) Likewise.
	(copy_original_table_set) Likewise.

From-SVN: r223950

gcc/ChangeLog

 2015-06-01  Martin Liska  <mliska@suse.cz>
 
+	* cfg.c (initialize_original_copy_tables):Use new type-based pool allocator.
+	(free_original_copy_tables) Likewise.
+	(copy_original_table_clear) Likewise.
+	(copy_original_table_set) Likewise.
+
+2015-06-01  Martin Liska  <mliska@suse.cz>
+
 	* asan.c (asan_mem_ref_get_alloc_pool):Use new type-based pool allocator.
 	(asan_mem_ref_new) Likewise.
 	(free_mem_ref_resources) Likewise.

gcc/cfg.c

@@ -1066,18 +1066,16 @@ static hash_table<bb_copy_hasher> *bb_copy;
 
 /* And between loops and copies.  */
 static hash_table<bb_copy_hasher> *loop_copy;
-static alloc_pool original_copy_bb_pool;
-
+static pool_allocator<htab_bb_copy_original_entry> *original_copy_bb_pool;
 
 /* Initialize the data structures to maintain mapping between blocks
    and its copies.  */
 void
 initialize_original_copy_tables (void)
 {
-  gcc_assert (!original_copy_bb_pool);
-  original_copy_bb_pool
-    = create_alloc_pool ("original_copy",
-			 sizeof (struct htab_bb_copy_original_entry), 10);
+
+  original_copy_bb_pool = new pool_allocator<htab_bb_copy_original_entry>
+    ("original_copy", 10);
   bb_original = new hash_table<bb_copy_hasher> (10);
   bb_copy = new hash_table<bb_copy_hasher> (10);
   loop_copy = new hash_table<bb_copy_hasher> (10);
@@ -1095,7 +1093,7 @@ free_original_copy_tables (void)
   bb_copy = NULL;
   delete loop_copy;
   loop_copy = NULL;
-  free_alloc_pool (original_copy_bb_pool);
+  delete original_copy_bb_pool;
   original_copy_bb_pool = NULL;
 }
 
@@ -1117,7 +1115,7 @@ copy_original_table_clear (hash_table<bb_copy_hasher> *tab, unsigned obj)
 
   elt = *slot;
   tab->clear_slot (slot);
-  pool_free (original_copy_bb_pool, elt);
+  original_copy_bb_pool->remove (elt);
 }
 
 /* Sets the value associated with OBJ in table TAB to VAL.
@@ -1137,8 +1135,7 @@ copy_original_table_set (hash_table<bb_copy_hasher> *tab,
   slot = tab->find_slot (&key, INSERT);
   if (!*slot)
     {
-      *slot = (struct htab_bb_copy_original_entry *)
-		pool_alloc (original_copy_bb_pool);
+      *slot = original_copy_bb_pool->allocate ();
       (*slot)->index1 = obj;
     }
   (*slot)->index2 = val;