tree-outof-ssa.c (check_replaceable): Do not allocate def_vars bitmap when not needed.

	* tree-outof-ssa.c (check_replaceable): Do not allocate def_vars
	bitmap when not needed.
	* tree-ssa-pre.c (bitmap_set_and, bitmap_set_and_compl): Free temporary
	bitmaps.

From-SVN: r115851

gcc/ChangeLog

+2006-08-01  Jan Hubicka  <jh@suse.cz>
+
+	* tree-outof-ssa.c (check_replaceable): Do not allocate def_vars
+	bitmap when not needed.
+	* tree-ssa-pre.c (bitmap_set_and, bitmap_set_and_compl): Free temporary
+	bitmaps.
+
 2006-08-01  Dirk Mueller  <dmueller@suse.de>
 
 	* tree-vrp.c (fix_equivalence_set): Avoid bitmap memory leak.

gcc/tree-outof-ssa.c

@@ -1556,7 +1556,7 @@ check_replaceable (temp_expr_table_p tab, tree stmt)
   var_map map = tab->map;
   ssa_op_iter iter;
   tree call_expr;
-  bitmap def_vars = BITMAP_ALLOC (NULL), use_vars;
+  bitmap def_vars, use_vars;
 
   if (TREE_CODE (stmt) != MODIFY_EXPR)
     return false;
@@ -1588,6 +1588,7 @@ check_replaceable (temp_expr_table_p tab, tree stmt)
 
   version = SSA_NAME_VERSION (def);
   basevar = SSA_NAME_VAR (def);
+  def_vars = BITMAP_ALLOC (NULL);
   bitmap_set_bit (def_vars, DECL_UID (basevar));
 
   /* Add this expression to the dependency list for each use partition.  */

gcc/tree-ssa-pre.c

@@ -624,7 +624,7 @@ bitmap_set_and (bitmap_set_t dest, bitmap_set_t orig)
       if (!bitmap_bit_p (dest->values, VALUE_HANDLE_ID (val)))
 	bitmap_clear_bit (dest->expressions, i);
     }
-
+  BITMAP_FREE (temp);
 }
 
 /* Perform bitmapped value set operation DEST = DEST & ~ORIG.  */
@@ -645,6 +645,7 @@ bitmap_set_and_compl (bitmap_set_t dest, bitmap_set_t orig)
       if (!bitmap_bit_p (dest->values, VALUE_HANDLE_ID (val)))
 	bitmap_clear_bit (dest->expressions, i);
     }
+  BITMAP_FREE (temp);
 }
 
 /* Return true if the bitmap set SET is empty.  */