X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgraph.c;h=1d593a801f9e38c954d18c539f4573930673e2ff;hb=e570f00fb465d212dde403160e97ab45d36d1d7e;hp=f7bf56af1c2bbc9678a9f01117b7c580bb73f4c6;hpb=66f846a2a301d938700fee41d0e1bccc7c6d6935;p=libfirm

diff --git a/ir/ir/irgraph.c b/ir/ir/irgraph.c
index f7bf56af1..1d593a801 100644
--- a/ir/ir/irgraph.c
+++ b/ir/ir/irgraph.c
@@ -1,12 +1,14 @@
-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-**
-*/
-
-/* $Id$ */
+/*
+ * Project:     libFIRM
+ * File name:   ir/ir/irgraph.c
+ * Purpose:     Entry point to the representation of procedure code.
+ * Author:      Martin Trapp, Christian Schaefer
+ * Modified by: Goetz Lindenmaier
+ * Created:
+ * CVS-ID:      $Id$
+ * Copyright:   (c) 1998-2003 Universität Karlsruhe
+ * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ */
 
 #ifdef HAVE_CONFIG_H
 # include <config.h>
@@ -21,10 +23,29 @@
 # include "array.h"
 # include "irgmod.h"
 # include "mangle.h"
+# include "irouts.h"
 
 ir_graph *current_ir_graph;
+INLINE ir_graph *get_current_ir_graph(void) {
+  return current_ir_graph;
+}
+INLINE void set_current_ir_graph(ir_graph *graph) {
+  current_ir_graph = graph;
+}
+
 
 bool interprocedural_view = false;
+INLINE bool get_interprocedural_view(void) {
+  return interprocedural_view;
+}
+INLINE void set_interprocedural_view(bool state) {
+  interprocedural_view = state;
+}
+
+static ident* frame_type_suffix = NULL;
+void init_irgraph(void) {
+  frame_type_suffix = id_from_str(FRAME_TP_SUFFIX, strlen(FRAME_TP_SUFFIX));
+}
 
 #if USE_EXPLICIT_PHI_IN_STACK
 /* really defined in ircons.c */
@@ -45,17 +66,19 @@ void free_Phi_in_stack(Phi_in_stack *s);
 ir_graph *
 new_ir_graph (entity *ent, int n_loc)
 {
-  int i;
   ir_graph *res;
   ir_node *first_block;
   ir_node *projX;
 
   res = (ir_graph *) malloc (sizeof (ir_graph));
+  memset(res, 0, sizeof (ir_graph));
+  res->kind=k_ir_graph;
+
   current_ir_graph = res;
   add_irp_irg(res);          /* remember this graph global. */
 
-  /** Internal information for graph construction either held in the graph or
-  *** initialized for each graph. **/
+/**
+  * initialized for each graph. **/
 #if PRECISE_EXC_CONTEXT
   res->n_loc = n_loc + 1 + 1; /* number of local variables that are never
                                  dereferenced in this graph plus one for
@@ -76,6 +99,7 @@ new_ir_graph (entity *ent, int n_loc)
   res->Phi_in_stack = new_Phi_in_stack();  /* A stack needed for automatic Phi
                                 generation */
 #endif
+  res->kind = k_ir_graph;
   res->obst      = (struct obstack *) xmalloc (sizeof (struct obstack));
   obstack_init (res->obst);
   res->value_table = new_identities (); /* value table for global value
@@ -87,15 +111,16 @@ new_ir_graph (entity *ent, int n_loc)
   res->pinned = pinned;
   res->outs_state = no_outs;
   res->dom_state = no_dom;
+  res->typeinfo_state = irg_typeinfo_none;
+  res->loopinfo_state = loopinfo_none;
 
   /** Type information for the procedure of the graph **/
   res->ent = ent;
   set_entity_irg(ent, res);
 
-  /** A type that represents the stack frame.  A class type so that it can
+/**
       contain "inner" methods as in Pascal. **/
-  res->frame_type = new_type_class(mangle(get_entity_ident(ent),
-	  id_from_str(FRAME_TP_SUFFIX, strlen(FRAME_TP_SUFFIX))));
+  res->frame_type = new_type_class(mangle(get_entity_ident(ent), frame_type_suffix));
   /* Remove type from type list.  Must be treated differently than other types. */
   remove_irp_type_from_list(res->frame_type);
 
@@ -106,14 +131,18 @@ new_ir_graph (entity *ent, int n_loc)
   res->start_block = new_immBlock ();
   res->start   = new_Start ();
   res->bad     = new_ir_node (NULL, res, res->start_block, op_Bad, mode_T, 0, NULL);
-  res->unknown = new_ir_node (NULL, res, res->start_block, op_Unknown, mode_T, 0, NULL);
+  //res->unknown = new_ir_node (NULL, res, res->start_block, op_Unknown, mode_T, 0, NULL);
 
   /* Proj results of start node */
   projX        = new_Proj (res->start, mode_X, pns_initial_exec);
   set_store (new_Proj (res->start, mode_M, pns_global_store));
-  res->frame   = new_Proj (res->start, mode_p, pns_frame_base);
-  res->globals = new_Proj (res->start, mode_p, pns_globals);
+  res->frame   = new_Proj (res->start, mode_P_mach, pns_frame_base);
+  res->globals = new_Proj (res->start, mode_P_mach, pns_globals);
   res->args    = new_Proj (res->start, mode_T, pns_args);
+#ifdef DEBUG_libfirm
+  res->graph_nr = get_irp_new_node_nr();
+#endif
+
 
   add_in_edge(res->start_block, projX);
   /*
@@ -133,11 +162,13 @@ new_ir_graph (entity *ent, int n_loc)
 
 /* Make a rudimentary ir graph for the constant code.
    Must look like a correct irg, spare everything else. */
-ir_graph *new_const_code_irg() {
+ir_graph *new_const_code_irg(void) {
   ir_graph *res;
   ir_node *projX;
 
-  res = (ir_graph *) malloc (sizeof (ir_graph));
+  res = (ir_graph *) malloc (sizeof(*res));
+  memset(res, 0, sizeof(*res));
+
   current_ir_graph = res;
   res->n_loc = 1;      /* Only the memory. */
   res->visited = 0;     /* visited flag, for the ir walker */
@@ -145,8 +176,10 @@ ir_graph *new_const_code_irg() {
 #if USE_EXPLICIT_PHI_IN_STACK
   res->Phi_in_stack = NULL;
 #endif
+  res->kind = k_ir_graph;
   res->obst      = (struct obstack *) xmalloc (sizeof (struct obstack));
   obstack_init (res->obst);
+  res->phase_state = phase_building;
   res->pinned = pinned;
   res->value_table = new_identities (); /* value table for global value
 					   numbering for optimizing use in
@@ -158,8 +191,9 @@ ir_graph *new_const_code_irg() {
   res->end       = new_End ();
   mature_block(get_cur_block());
   res->bad = new_ir_node (NULL, res, res->start_block, op_Bad, mode_T, 0, NULL);
-  res->unknown = new_ir_node (NULL, res, res->start_block, op_Unknown, mode_T, 0, NULL);
+  //res->unknown = new_ir_node (NULL, res, res->start_block, op_Unknown, mode_T, 0, NULL);
   res->start   = new_Start ();
+
   /* Proj results of start node */
   projX        = new_Proj (res->start, mode_X, pns_initial_exec);
   set_store (new_Proj (res->start, mode_M, pns_global_store));
@@ -171,9 +205,14 @@ ir_graph *new_const_code_irg() {
   set_irn_visited(get_cur_block(), -1);
   set_Block_block_visited(get_cur_block(), -1);
   set_Block_block_visited(res->start_block, -1);
+  set_irn_visited(res->start_block, -1);
+  set_irn_visited(res->bad, -1);
   return res;
 }
 
+/* Defined in iropt.c */
+void  del_identities (pset *value_table);
+
 /* Frees the passed irgraph.
    Deallocates all nodes in this graph and the ir_graph structure.
    Sets the field irgraph in the corresponding entity to NULL.
@@ -182,11 +221,17 @@ ir_graph *new_const_code_irg() {
    Does not free types, entities or modes that are used only by this
    graph, nor the entity standing for this graph. */
 void free_ir_graph (ir_graph *irg) {
-  set_entity_irg(irg->ent, NULL);
+  if (irg->ent) set_entity_irg(irg->ent, NULL);  /* not set in const code irg */
+  free_End(irg->end);
+  if (irg->frame_type)  free_type(irg->frame_type);
+  if (irg->value_table) del_identities(irg->value_table);
+  if (irg->outs_state != no_outs) free_outs(irg);
+  obstack_free(irg->obst,NULL);
   free(irg->obst);
 #if USE_EXPLICIT_PHI_IN_STACK
   free_Phi_in_stack(irg->Phi_in_stack);
 #endif
+  irg->kind = k_BAD;
   free(irg);
 }
 
@@ -195,6 +240,27 @@ void free_ir_graph (ir_graph *irg) {
    {attr type} get_irg_{attribute name} (ir_graph *irg);
    void set_irg_{attr name} (ir_graph *irg, {attr type} {attr}); */
 
+int
+is_ir_graph(void *thing) {
+  assert(thing);
+  if (get_kind(thing) == k_ir_graph)
+    return 1;
+  else
+    return 0;
+}
+
+/* Outputs a unique number for this node */
+
+INLINE long
+get_irg_graph_nr(ir_graph *irg) {
+  assert(irg);
+#ifdef DEBUG_libfirm
+  return irg->graph_nr;
+#else
+  return 0;
+#endif
+}
+
 ir_node *
 get_irg_start_block (ir_graph *irg)
 {
@@ -303,6 +369,7 @@ set_irg_bad (ir_graph *irg, ir_node *node)
   irg->bad = node;
 }
 
+/* GL removed: we need unknown with mode for analyses.
 ir_node *
 get_irg_unknown (ir_graph *irg)
 {
@@ -314,6 +381,7 @@ set_irg_unknown (ir_graph *irg, ir_node *node)
 {
   irg->unknown = node;
 }
+*/
 
 ir_node *
 get_irg_current_block (ir_graph *irg)
@@ -350,6 +418,7 @@ get_irg_frame_type (ir_graph *irg)
 void
 set_irg_frame_type (ir_graph *irg, type *ftp)
 {
+  assert(is_class_type(ftp));
   irg->frame_type = ftp;
 }
 
@@ -357,9 +426,14 @@ set_irg_frame_type (ir_graph *irg, type *ftp)
 /* To test for a frame type */
 int
 is_frame_type(type *ftp) {
-  return ((is_class_type(ftp) || is_struct_type(ftp)) &&
-	  id_is_suffix(id_from_str(FRAME_TP_SUFFIX, strlen(FRAME_TP_SUFFIX)),
-		       get_type_ident(ftp)));
+  int i;
+  if (is_class_type(ftp)) {
+    for (i = 0; i < get_irp_n_irgs(); i++) {
+      type *frame_tp = get_irg_frame_type(get_irp_irg(i));
+      if (ftp == frame_tp) return true;
+    }
+  }
+  return false;
 }
 
 int
@@ -382,11 +456,41 @@ set_irg_n_loc (ir_graph *irg, int n_loc)
 #endif
 }
 
-irg_phase_state get_irg_phase_state (ir_graph *irg) {
+
+
+/* Returns the obstack associated with the graph. */
+struct obstack *get_irg_obstack(ir_graph *irg) {
+  return irg->obst;
+}
+
+/*
+ * Returns true if the node n is allocated on the storage of graph irg.
+ *
+ * Implementation is GLIBC specific as is uses the internal _obstack_chunk implementation.
+ */
+int node_is_in_irgs_storage(ir_graph *irg, ir_node *n)
+{
+  struct _obstack_chunk	*p;
+
+  /*
+   * checks wheater the ir_node pointer i on the obstack.
+   * A more sophisticated check would test the "whole" ir_node
+   */
+  for (p = irg->obst->chunk; p; p = p->prev) {
+    if (((char *)p->contents <= (char *)n) && ((char *)n < (char *)p->limit))
+      return 1;
+  }
+
+  return 0;
+}
+
+irg_phase_state
+get_irg_phase_state (ir_graph *irg) {
   return irg->phase_state;
 }
 
-void set_irg_phase_low(ir_graph *irg) {
+void
+set_irg_phase_low(ir_graph *irg) {
   irg->phase_state = phase_low;
 }
 
@@ -395,27 +499,65 @@ get_irg_pinned (ir_graph *irg) {
   return irg->pinned;
 }
 
-irg_outs_state get_irg_outs_state(ir_graph *irg) {
+irg_outs_state
+get_irg_outs_state(ir_graph *irg) {
   return irg->outs_state;
 }
 
-void set_irg_outs_inconsistent(ir_graph *irg) {
+void
+set_irg_outs_inconsistent(ir_graph *irg) {
   irg->outs_state = outs_inconsistent;
 }
 
-irg_dom_state get_irg_dom_state(ir_graph *irg) {
+irg_dom_state
+get_irg_dom_state(ir_graph *irg) {
   return irg->dom_state;
 }
 
-void set_irg_dom_inconsistent(ir_graph *irg) {
+void
+set_irg_dom_inconsistent(ir_graph *irg) {
   irg->dom_state = dom_inconsistent;
 }
 
+irg_loopinfo_state
+get_irg_loopinfo_state(ir_graph *irg) {
+  return irg->loopinfo_state;
+}
+
+void set_irg_loopinfo_state(ir_graph *irg, irg_loopinfo_state s) {
+  irg->loopinfo_state = s;
+}
+
+void
+set_irg_loopinfo_inconsistent(ir_graph *irg) {
+  if (irg->loopinfo_state == loopinfo_ip_consistent)
+    irg->loopinfo_state = loopinfo_ip_inconsistent;
+  else
+    irg->loopinfo_state = loopinfo_inconsistent;
+}
+
 INLINE void
 set_irg_pinned (ir_graph *irg, op_pinned p) {
   irg->pinned = p;
 }
 
+
+irg_callee_info_state get_irg_callee_info_state(ir_graph *irg) {
+  return irg->callee_info_state;
+}
+
+void set_irg_callee_info_state(ir_graph *irg, irg_callee_info_state s) {
+  irg->callee_info_state = s;
+}
+
+irg_inline_property get_irg_inline_property(ir_graph *irg) {
+  return irg->inline_property;
+}
+void set_irg_inline_property(ir_graph *irg, irg_inline_property s) {
+  irg->inline_property = s;
+}
+
+
 INLINE void
 set_irg_link (ir_graph *irg, void *thing) {
   irg->link = thing;
@@ -455,18 +597,26 @@ inc_irg_visited (ir_graph *irg)
 unsigned long
 get_max_irg_visited(void)
 {
+  /*
   int i;
   for(i = 0; i < get_irp_n_irgs(); i++)
-    assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
+  assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
+   */
   return max_irg_visited;
 }
 
+void set_max_irg_visited(int val) {
+  max_irg_visited = val;
+}
+
 unsigned long
 inc_max_irg_visited(void)
 {
+  /*
   int i;
   for(i = 0; i < get_irp_n_irgs(); i++)
-    assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
+  assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
+  */
   max_irg_visited++;
   return max_irg_visited;
 }