/* -*- c -*- */
/*
- * Project: libFIRM
- * File name: ir/ana2/pto_util.c
- * Purpose: Pto Utilities
- * Author: Florian
- * Modified by:
- * Created: Mon 18 Oct 2004
- * CVS-ID: $Id$
- * Copyright: (c) 1999-2004 Universität Karlsruhe
- * Licence: This file is protected by GPL - GNU GENERAL PUBLIC LICENSE.
- */
-
-
-# ifdef HAVE_CONFIG_H
-# include <config.h>
-# endif
+ Project: libFIRM
+ File name: ir/ana/pto_util.c
+ Purpose: Utilitites for PTO
+ Author: Florian
+ Modified by:
+ Created: Sat Nov 13 19:35:27 CET 2004
+ CVS-ID: $Id$
+ Copyright: (c) 1999-2004 Universität Karlsruhe
+ Licence: This file is protected by the GPL - GNU GENERAL PUBLIC LICENSE.
+*/
-# include "pto_util.h"
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+/*
+ pto_util: Utilitites for PTO
+*/
-# include <malloc.h>
+# include "pto_util.h"
-# include "irnode.h"
+# include "irnode_t.h"
# include "irgwalk.h"
# include "xmalloc.h"
-/*
- Environment for find_irg_args
-*/
+# include "pto_debug.h"
+# include "gnu_ext.h"
+
+/* Local Defines: */
+# ifndef TRUE
+# define TRUE 1
+# define FALSE 0
+# endif /* not defined TRUE */
+
+/* Local Data Types: */
+/* Environment for find_irg_args */
typedef struct find_irg_args_env {
ir_node **args;
ir_node *arg;
} find_irg_args_env_t;
-/*
- Helper for find_irg_args
-*/
+
+/* Local Variables: */
+
+/* Local Prototypes: */
+
+/* ===================================================
+ Local Implementation:
+ =================================================== */
+/* Helper for find_irg_args */
static void find_irg_arg (ir_node *node, void *env)
{
find_irg_args_env_t *arg_env = (find_irg_args_env_t*) env;
}
}
-/*
- Find the arguments of a graph. For a method that has n args, the
+/* ===================================================
+ Exported Implementation:
+ =================================================== */
+/* Find the arguments of a graph. For a method that has n args, the
result array has 'n+1' entries, the last of which is written NULL.
+ Note that not all entries in [0..n-1] will be populated all the time.
*/
ir_node **find_irg_args (ir_graph *graph)
{
type *tp = get_entity_type (get_irg_entity (graph));
const int n_args = get_method_n_params (tp);
- ir_node **args = (ir_node**) xmalloc (sizeof (ir_node*) * (n_args+1));
+ ir_node **args = xcalloc (n_args + 1, sizeof (ir_node*));
ir_node *arg = get_irg_args (graph);
- find_irg_args_env_t *arg_env =
- (find_irg_args_env_t*) xmalloc (sizeof (find_irg_args_env_t));
+ find_irg_args_env_t *arg_env;
+
+ arg_env = (find_irg_args_env_t*) xmalloc (sizeof (find_irg_args_env_t));
arg_env->args = args;
arg_env->arg = arg;
- /* or use get_irg_end ?!? */
{
ir_graph *save = get_current_ir_graph ();
+
set_current_ir_graph (graph);
irg_walk (get_irg_end (graph), find_irg_arg, NULL, arg_env);
set_current_ir_graph (save);
}
- free (arg_env);
+ memset (arg_env, 0x00, sizeof (find_irg_args_env_t));
+ free (arg_env);
args [n_args] = NULL;
return (args);
}
+/* Get the entity of a ptr */
+entity *get_ptr_ent (ir_node *ptr)
+{
+ entity *ent = NULL;
+ const opcode ptr_op = get_irn_opcode (ptr);
+ switch (ptr_op) {
+ case (iro_Cast): {
+ ent = get_ptr_ent (get_Cast_op (ptr));
+ } break;
+ case (iro_Sel): {
+ ent = get_Sel_entity (ptr);
+ } break;
+
+ case (iro_SymConst): {
+ ent = get_SymConst_entity (ptr);
+ } break;
+
+ default: {
+ fprintf (stderr, "%s: no ent for ptr=%s[%ld]\n",
+ __FUNCTION__,
+ get_op_name (get_irn_op (ptr)),
+ get_irn_node_nr (ptr));
+ assert (0);
+ }
+ }
+
+ return (ent);
+}
+
+/* Check whether the load of the given ptr is a dummy */
+int is_dummy_load_ptr (ir_node *ptr)
+{
+ const opcode ptr_op = get_irn_opcode (ptr);
+
+ switch (ptr_op) {
+ case (iro_Cast): {
+ return (is_dummy_load_ptr (get_Cast_op (ptr)));
+ } break;
+ case (iro_Sel):
+ case (iro_SymConst): {
+ return (FALSE);
+ } break;
+
+ default: {
+ return (TRUE);
+ }
+ }
+}
\f
/*
$Log$
- Revision 1.2 2004/10/25 11:59:45 liekweg
- Copy Only works
+ Revision 1.16 2005/01/14 14:13:32 liekweg
+ fix gnu extension
+
+ Revision 1.15 2005/01/10 17:26:34 liekweg
+ fixup printfs, don't put environments on the stack
- Revision 1.1 2004/10/22 15:10:51 liekweg
- moved utils to pto_util
+ Revision 1.14 2004/12/23 15:47:09 beck
+ removed uneeded allocations
+ used new xcalloc
+ Revision 1.13 2004/12/22 14:43:14 beck
+ made allocations C-like
- */
+ Revision 1.12 2004/12/21 15:53:12 beck
+ removed GNUC constructs
+
+ Revision 1.11 2004/12/20 17:34:35 liekweg
+ fix recursion handling
+
+ Revision 1.10 2004/12/06 12:55:06 liekweg
+ actually iterate
+
+ Revision 1.9 2004/12/02 16:17:51 beck
+ fixed config.h include
+
+ Revision 1.8 2004/11/26 15:59:14 liekweg
+ recognize dummy loads
+
+ Revision 1.7 2004/11/24 14:53:56 liekweg
+ Bugfixes
+
+ Revision 1.6 2004/11/18 16:37:07 liekweg
+ rewrite
+
+
+*/
projects / libfirm / blobdiff