X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgraph.c;h=8e9125a356d1d8ad8f185bf2ad91833f2aef5e69;hb=10095ba5b312beeb57f0f0b587afc2b187dfcae7;hp=a8540052841b95a2a593654074724100f8c5aeaf;hpb=c13d7d771c9b2a78ceaefa7b5ad6c6814fcec758;p=libfirm

diff --git a/ir/ir/irgraph.c b/ir/ir/irgraph.c
index a85400528..8e9125a35 100644
--- a/ir/ir/irgraph.c
+++ b/ir/ir/irgraph.c
@@ -1,9 +1,9 @@
 /* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-**
+* All rights reserved.
+*
+* Authors: Martin Trapp, Christian Schaefer
+*
+*
 */
 
 /* $Id$ */
@@ -12,17 +12,39 @@
 # include <config.h>
 #endif
 
+# include <string.h>
+
 # include "ircons.h"
 # include "irgraph_t.h"
-# include "irprog.h"
+# include "irprog_t.h"
 # include "iropt_t.h"
 # include "array.h"
 # include "irgmod.h"
 # include "mangle.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_EXPICIT_PHI_IN_STACK
+#if USE_EXPLICIT_PHI_IN_STACK
 /* really defined in ircons.c */
 typedef struct Phi_in_stack Phi_in_stack;
 Phi_in_stack *new_Phi_in_stack();
@@ -46,11 +68,13 @@ new_ir_graph (entity *ent, int n_loc)
   ir_node *projX;
 
   res = (ir_graph *) malloc (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
@@ -67,10 +91,11 @@ new_ir_graph (entity *ent, int n_loc)
   res->visited = 0;     /* visited flag, for the ir walker */
   res->block_visited=0; /* visited flag, for the 'block'-walker */
 
-#if USE_EXPICIT_PHI_IN_STACK
+#if USE_EXPLICIT_PHI_IN_STACK
   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
@@ -83,14 +108,15 @@ new_ir_graph (entity *ent, int n_loc)
   res->outs_state = no_outs;
   res->dom_state = no_dom;
 
-  /** Type inforamtion for the procedure of the graph **/
+  /** 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);
 
   /** Nodes needed in every graph **/
   res->end_block = new_immBlock ();
@@ -98,14 +124,19 @@ new_ir_graph (entity *ent, int n_loc)
 
   res->start_block = new_immBlock ();
   res->start   = new_Start ();
-  res->bad     = new_ir_node (res, res->start_block, op_Bad, mode_T, 0, NULL);
+  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);
 
   /* 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);
   /*
@@ -134,11 +165,13 @@ ir_graph *new_const_code_irg() {
   res->n_loc = 1;      /* Only the memory. */
   res->visited = 0;     /* visited flag, for the ir walker */
   res->block_visited=0; /* visited flag, for the 'block'-walker */
-#if USE_EXPICIT_PHI_IN_STACK
+#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
@@ -149,7 +182,8 @@ ir_graph *new_const_code_irg() {
   res->end_block = new_immBlock ();
   res->end       = new_End ();
   mature_block(get_cur_block());
-  res->bad = new_ir_node (res, res->start_block, op_Bad, mode_T, 0, NULL);
+  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->start   = new_Start ();
   /* Proj results of start node */
   projX        = new_Proj (res->start, mode_X, pns_initial_exec);
@@ -175,7 +209,7 @@ ir_graph *new_const_code_irg() {
 void free_ir_graph (ir_graph *irg) {
   set_entity_irg(irg->ent, NULL);
   free(irg->obst);
-#if USE_EXPICIT_PHI_IN_STACK
+#if USE_EXPLICIT_PHI_IN_STACK
   free_Phi_in_stack(irg->Phi_in_stack);
 #endif
   free(irg);
@@ -186,6 +220,27 @@ 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)
 {
@@ -294,6 +349,18 @@ set_irg_bad (ir_graph *irg, ir_node *node)
   irg->bad = node;
 }
 
+ir_node *
+get_irg_unknown (ir_graph *irg)
+{
+  return irg->unknown;
+}
+
+void
+set_irg_unknown (ir_graph *irg, ir_node *node)
+{
+  irg->unknown = node;
+}
+
 ir_node *
 get_irg_current_block (ir_graph *irg)
 {
@@ -342,7 +409,7 @@ is_frame_type(type *ftp) {
 }
 
 int
-get_irg_n_loc (ir_graph *irg)
+get_irg_n_locs (ir_graph *irg)
 {
 #if PRECISE_EXC_CONTEXT
   return irg->n_loc - 1 - 1;
@@ -361,11 +428,41 @@ 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 chaeck 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;
 }
 
@@ -374,28 +471,44 @@ 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;
 }
 
-inline void
-set_irg_pinned (ir_graph *irg, op_pinned p)
-{
+INLINE void
+set_irg_pinned (ir_graph *irg, op_pinned p) {
   irg->pinned = p;
 }
 
+INLINE void
+set_irg_link (ir_graph *irg, void *thing) {
+  irg->link = thing;
+}
+
+INLINE void *
+get_irg_link (ir_graph *irg) {
+  return irg->link;
+}
+
+/* maximum visited flag content of all ir_graph visited fields. */
+static int max_irg_visited = 0;
+
 unsigned long
 get_irg_visited (ir_graph *irg)
 {
@@ -406,12 +519,44 @@ void
 set_irg_visited (ir_graph *irg, unsigned long visited)
 {
   irg->visited = visited;
+  if (irg->visited > max_irg_visited) {
+    max_irg_visited = irg->visited;
+  }
 }
 
 void
 inc_irg_visited (ir_graph *irg)
 {
-  irg->visited = irg->visited++;
+  if (++irg->visited > max_irg_visited) {
+    max_irg_visited = irg->visited;
+  }
+}
+
+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)));
+   */
+  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)));
+  */
+  max_irg_visited++;
+  return max_irg_visited;
 }
 
 unsigned long
@@ -429,5 +574,5 @@ set_irg_block_visited (ir_graph *irg, unsigned long visited)
 void
 inc_irg_block_visited (ir_graph *irg)
 {
-  irg->block_visited = irg->block_visited++;
+  ++irg->block_visited;
 }