Added comment

[libfirm] / ir / ir / irprog.c

diff --git a/ir/ir/irprog.c b/ir/ir/irprog.c
index 4ab9f55..0200998 100644 (file)
--- a/ir/ir/irprog.c
+++ b/ir/ir/irprog.c
@@ -1,12 +1,14 @@
-/* Copyright (C) 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Goetz Lindenmaier
-**
-** irprog.c: ir representation of a program
-*/
-
-/* $Id$ */
+/*
+ * Project:     libFIRM
+ * File name:   ir/ir/irprog.c
+ * Purpose:     Entry point to the representation of a whole program.
+ * Author:      Goetz Lindenmaier
+ * Modified by:
+ * Created:     2000
+ * CVS-ID:      $Id$
+ * Copyright:   (c) 2000-2003 Universität Karlsruhe
+ * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ */
 
 #ifdef HAVE_CONFIG_H
 # include <config.h>
@@ -24,37 +26,71 @@
 
 /* A variable from where everything in the ir can be accessed. */
 ir_prog *irp;
+ir_prog *get_irp() { return irp; }
 
 /* initializes ir_prog. Calles the constructor for an ir_prog. */
 void init_irprog(void) {
   new_ir_prog ();
 }
 
+INLINE void remove_irp_type_from_list (type *typ) {
+  int i;
+  assert(typ);
+  for (i = 1; i < (ARR_LEN (irp->types)); i++) {
+    if (irp->types[i] == typ) {
+      for(; i < (ARR_LEN (irp->types)) - 1; i++) {
+       irp->types[i] = irp->types[i+1];
+      }
+      ARR_SETLEN(type*, irp->types, (ARR_LEN(irp->types)) - 1);
+      break;
+    }
+  }
+}
+
 /* Create a new ir prog. Automatically called by init_firm through
    init_irprog. */
 ir_prog *new_ir_prog (void) {
   ir_prog *res;
 
   res = (ir_prog *) malloc (sizeof(ir_prog));
+  memset(res, 0, sizeof(res));
   irp = res;
   /* res->obst      = (struct obstack *) xmalloc (sizeof (struct obstack)); */
   res->graphs = NEW_ARR_F (ir_graph *, 1);
   res->types  = NEW_ARR_F (type *, 1);
+  res->name   = new_id_from_str("no_name_set");
+
+#ifdef DEBUG_libfirm
+  res->max_node_nr = 0;
+#endif
+
   res->glob_type = new_type_class(id_from_str (GLOBAL_TYPE_NAME,
                                               strlen(GLOBAL_TYPE_NAME)));
-  // @@@ Das ist hier das 2. mal!!
-  add_irp_type(res->glob_type);
+  /* Remove type from type list.  Must be treated differently than
+     other types. */
+  remove_irp_type_from_list(res->glob_type);
 
   res->const_code_irg = new_const_code_irg();
 
-#ifdef DEBUG_libfirm
-  res->max_node_nr = 1;
-#endif
+  res->outs_state = no_outs;
+  res->ip_outedges = NULL;
 
   return res;
 }
 
-/** Functions to access the fields of ir_prog **/
+/* frees all memory used by irp.  Types in type list, irgs in irg
+    list and entities in global type must be freed by hand before. */
+void     free_ir_prog() {
+  free_type(irp->glob_type);
+  /* @@@ * free_ir_graph(irp->const_code_irg); * ?? End has no in?? */
+  DEL_ARR_F(irp->graphs);
+  DEL_ARR_F(irp->types);
+
+  irp->kind = k_BAD;
+  irp->const_code_irg = NULL;
+}
+
+/*- Functions to access the fields of ir_prog -*/
 
 
 /* Access the main routine of the compiled program. */
@@ -80,8 +116,7 @@ void add_irp_irg(ir_graph *irg) {
   ARR_APP1 (ir_graph *, irp->graphs, irg);
 }
 
-/* Removes irg from the list or irgs, shrinks the list by one.
-   @@@ does not work properly. */
+/* Removes irg from the list or irgs, shrinks the list by one. */
 void remove_irp_irg(ir_graph *irg){
   int i;
   assert(irg);
@@ -123,6 +158,10 @@ void add_irp_type(type *typ) {
   ARR_APP1 (type *, irp->types, typ);
 }
 
+void remove_irp_type(type *typ) {
+  remove_irp_type_from_list (typ);
+}
+
 int get_irp_n_types (void) {
   assert (irp && irp->types);
   /* Strangely the first element of the array is NULL.  Why??  */
@@ -151,7 +190,35 @@ int get_irp_new_node_nr() {
 }
 #endif
 
-ir_graph *get_const_code_irg()
+/*- File name / executable name or the like -*/
+void   set_irp_prog_name(ident *name) {
+  irp->name = name;
+}
+ident *get_irp_prog_ident(void) {
+  return irp->name;
+}
+const char  *get_irp_prog_name(void) {
+  return get_id_str(irp->name);
+}
+
+
+ir_graph *get_const_code_irg(void)
 {
   return irp->const_code_irg;
 }
+
+irg_outs_state get_irp_ip_outs_state() {
+  return irp->outs_state;
+}
+void set_irp_ip_outs_inconsistent() {
+  irp->outs_state = outs_inconsistent;
+}
+void      set_irp_ip_outedges(ir_node ** ip_outedges)
+{
+  irp -> ip_outedges = ip_outedges;
+}
+
+ir_node** get_irp_ip_outedges(void)
+{
+  return(irp -> ip_outedges);
+}