* cselib.c: Include alloc-pool.h

	(empty_vals, empty_elt_lists, empty_elt_loc_lists): Kill.
	(elt_loc_list_pool, elt_list_pool, cselib_val_pool): Declare.
	(new_elt_list, new_elt_loc_list, unchain_one_elt_list,
	unchain_one_elt_loc_list_pool, unchain_one_value,
	new_cselib_val): Simplify using allocpool.
	(cselib_init): Initialize allocpools.
	(cselib_finish): Finish allocpools.
	* Makefile.in (cselib.o): Depend on alloc-pool.h


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@76226 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 33 deletions

diff --git a/gcc/cselib.c b/gcc/cselib.c
index c3a68726a2b..50cc0ff34c9 100644
--- a/gcc/cselib.c
+++ b/gcc/cselib.c
@@ -40,6 +40,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include "hashtab.h"
 #include "cselib.h"
 #include "params.h"
+#include "alloc-pool.h"
 
 static int entry_and_rtx_equal_p (const void *, const void *);
 static hashval_t get_value_hash (const void *);
@@ -117,11 +118,6 @@ static GTY((deletable (""))) varray_type used_regs_old;
    memory for a non-const call instruction.  */
 static GTY(()) rtx callmem;
 
-/* Caches for unused structures.  */
-static GTY((deletable (""))) cselib_val *empty_vals;
-static GTY((deletable (""))) struct elt_list *empty_elt_lists;
-static GTY((deletable (""))) struct elt_loc_list *empty_elt_loc_lists;
-
 /* Set by discard_useless_locs if it deleted the last location of any
    value.  */
 static int values_became_useless;
@@ -134,20 +130,17 @@ static cselib_val dummy_val;
    May or may not contain the useless values - the list is compacted
    each time memory is invalidated.  */
 static cselib_val *first_containing_mem = &dummy_val;
+static alloc_pool elt_loc_list_pool, elt_list_pool, cselib_val_pool;
 
 
 /* Allocate a struct elt_list and fill in its two elements with the
    arguments.  */
 
-static struct elt_list *
+static inline struct elt_list *
 new_elt_list (struct elt_list *next, cselib_val *elt)
 {
-  struct elt_list *el = empty_elt_lists;
-
-  if (el)
-    empty_elt_lists = el->next;
-  else
-    el = ggc_alloc (sizeof (struct elt_list));
+  struct elt_list *el;
+  el = pool_alloc (elt_list_pool);
   el->next = next;
   el->elt = elt;
   return el;
@@ -156,15 +149,11 @@ new_elt_list (struct elt_list *next, cselib_val *elt)
 /* Allocate a struct elt_loc_list and fill in its two elements with the
    arguments.  */
 
-static struct elt_loc_list *
+static inline struct elt_loc_list *
 new_elt_loc_list (struct elt_loc_list *next, rtx loc)
 {
-  struct elt_loc_list *el = empty_elt_loc_lists;
-
-  if (el)
-    empty_elt_loc_lists = el->next;
-  else
-    el = ggc_alloc (sizeof (struct elt_loc_list));
+  struct elt_loc_list *el;
+  el = pool_alloc (elt_loc_list_pool);
   el->next = next;
   el->loc = loc;
   el->canon_loc = NULL;
@@ -176,14 +165,13 @@ new_elt_loc_list (struct elt_loc_list *next, rtx loc)
 /* The elt_list at *PL is no longer needed.  Unchain it and free its
    storage.  */
 
-static void
+static inline void
 unchain_one_elt_list (struct elt_list **pl)
 {
   struct elt_list *l = *pl;
 
   *pl = l->next;
-  l->next = empty_elt_lists;
-  empty_elt_lists = l;
+  pool_free (elt_list_pool, l);
 }
 
 /* Likewise for elt_loc_lists.  */
@@ -194,8 +182,7 @@ unchain_one_elt_loc_list (struct elt_loc_list **pl)
   struct elt_loc_list *l = *pl;
 
   *pl = l->next;
-  l->next = empty_elt_loc_lists;
-  empty_elt_loc_lists = l;
+  pool_free (elt_loc_list_pool, l);
 }
 
 /* Likewise for cselib_vals.  This also frees the addr_list associated with
@@ -207,8 +194,7 @@ unchain_one_value (cselib_val *v)
   while (v->addr_list)
     unchain_one_elt_list (&v->addr_list);
 
-  v->u.next_free = empty_vals;
-  empty_vals = v;
+  pool_free (cselib_val_pool, v);
 }
 
 /* Remove all entries from the hash table.  Also used during
@@ -697,18 +683,15 @@ hash_rtx (rtx x, enum machine_mode mode, int create)
 /* Create a new value structure for VALUE and initialize it.  The mode of the
    value is MODE.  */
 
-static cselib_val *
+static inline cselib_val *
 new_cselib_val (unsigned int value, enum machine_mode mode)
 {
-  cselib_val *e = empty_vals;
-
-  if (e)
-    empty_vals = e->u.next_free;
-  else
-    e = ggc_alloc (sizeof (cselib_val));
+  cselib_val *e = pool_alloc (cselib_val_pool);
 
+#ifdef ENABLE_CHECKING
   if (value == 0)
     abort ();
+#endif
 
   e->value = value;
   e->u.val_rtx = gen_rtx_VALUE (mode);
@@ -1403,6 +1386,12 @@ cselib_update_varray_sizes (void)
 void
 cselib_init (void)
 {
+  elt_list_pool = create_alloc_pool ("elt_list", 
+				     sizeof (struct elt_list), 10);
+  elt_loc_list_pool = create_alloc_pool ("elt_loc_list", 
+				         sizeof (struct elt_loc_list), 10);
+  cselib_val_pool = create_alloc_pool ("cselib_val_list", 
+				       sizeof (cselib_val), 10);
   /* This is only created once.  */
   if (! callmem)
     callmem = gen_rtx_MEM (BLKmode, const0_rtx);
@@ -1428,6 +1417,9 @@ cselib_init (void)
 void
 cselib_finish (void)
 {
+  free_alloc_pool (elt_list_pool);
+  free_alloc_pool (elt_loc_list_pool);
+  free_alloc_pool (cselib_val_pool);
   clear_table ();
   reg_values_old = reg_values;
   reg_values = 0;