X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgraph.c;h=225862d90319e93d21f8110fe738cd9acc16dba7;hb=8399216d8aebc713bbda04b6e3e250a1d52b20bf;hp=aa2bf5777705b4ccf7825178fe4db029e7506b8a;hpb=bdadb741281a7605235767c99d1440ab1edb3848;p=libfirm

diff --git a/ir/ir/irgraph.c b/ir/ir/irgraph.c
index aa2bf5777..225862d90 100644
--- a/ir/ir/irgraph.c
+++ b/ir/ir/irgraph.c
@@ -11,14 +11,20 @@
  */
 
 #ifdef HAVE_CONFIG_H
-# include <config.h>
+# include "config.h"
 #endif
 
+#ifdef HAVE_STRING_H
 # include <string.h>
+#endif
+
+#include <stddef.h>
 
+# include "xmalloc.h"
 # include "ircons.h"
 # include "irgraph_t.h"
 # include "irprog_t.h"
+# include "irnode_t.h"
 # include "iropt_t.h"
 # include "irflag_t.h"
 # include "array.h"
@@ -26,6 +32,19 @@
 # include "mangle.h"
 # include "irouts.h"
 # include "firmstat.h"
+# include "irgwalk.h"
+
+/**
+ * Indicates, whether additional data can be registered to graphs.
+ * If set to 1, this is not possible anymore.
+ */
+static int forbid_new_data = 0;
+
+/**
+ * The amount of additional space for custom data to be allocated upon
+ * creating a new graph.
+ */
+static size_t additional_graph_data_size = 0;
 
 ir_graph *current_ir_graph;
 INLINE ir_graph *get_current_ir_graph(void) {
@@ -36,17 +55,46 @@ INLINE void set_current_ir_graph(ir_graph *graph) {
 }
 
 
-bool interprocedural_view = false;
-INLINE bool get_interprocedural_view(void) {
-  return interprocedural_view;
+int __interprocedural_view = false;
+
+int (get_interprocedural_view)(void) {
+  return __get_interprocedural_view();
 }
-INLINE void set_interprocedural_view(bool state) {
-  interprocedural_view = state;
+
+void (set_interprocedural_view)(int state) {
+  __interprocedural_view = state;
+
+  /* set function vectors for faster access */
+  if (state) {
+    __get_irn_arity = __get_irn_inter_arity;
+    __get_irn_n     = __get_irn_inter_n;
+  }
+  else {
+    __get_irn_arity = __get_irn_intra_arity;
+    __get_irn_n     = __get_irn_intra_n;
+  }
 }
 
 static ident* frame_type_suffix = NULL;
 void init_irgraph(void) {
-  frame_type_suffix = id_from_str(FRAME_TP_SUFFIX, strlen(FRAME_TP_SUFFIX));
+  frame_type_suffix = new_id_from_str(FRAME_TP_SUFFIX);
+	forbid_new_data = 1;
+}
+
+/**
+ * Allocate a new ir graph.
+ * This function respects the registered graph data. The only reason for
+ * this function is, that there are two locations, where graphs are
+ * allocated (new_r_ir_graph, new_const_code_irg).
+ * @return Memory for a new graph.
+ */
+ir_graph *alloc_graph(void)
+{
+	size_t size = sizeof(ir_graph) + additional_graph_data_size;
+	char *ptr = xmalloc(size);
+	memset(ptr, 0, size);
+
+	return (ir_graph *) (ptr + additional_graph_data_size);
 }
 
 #if USE_EXPLICIT_PHI_IN_STACK
@@ -66,46 +114,44 @@ void free_Phi_in_stack(Phi_in_stack *s);
    and optimization.
 */
 ir_graph *
-new_ir_graph (entity *ent, int n_loc)
+new_r_ir_graph (entity *ent, int n_loc)
 {
   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;
+  res = alloc_graph();
+  res->kind = k_ir_graph;
 
   /* inform statistics here, as blocks will be already build on this graph */
   stat_new_graph(res, ent);
 
   current_ir_graph = res;
-  add_irp_irg(res);          /* remember this graph global. */
 
   /*-- initialized for each graph. --*/
   if (get_opt_precise_exc_context()) {
     res->n_loc = n_loc + 1 + 1; /* number of local variables that are never
-				   dereferenced in this graph plus one for
-				   the store plus one for links to fragile
-				   operations.  n_loc is not the number of
-				   parameters to the procedure!  */
+                   dereferenced in this graph plus one for
+                   the store plus one for links to fragile
+                   operations.  n_loc is not the number of
+                   parameters to the procedure!  */
   }
   else {
     res->n_loc = n_loc + 1;  /* number of local variables that are never
-				dereferenced in this graph plus one for
-				the store. This is not the number of parameters
-				to the procedure!  */
+                dereferenced in this graph plus one for
+                the store. This is not the number of parameters
+                to the procedure!  */
   }
 
   res->visited = 0;     /* visited flag, for the ir walker */
-  res->block_visited=0; /* visited flag, for the 'block'-walker */
+  res->block_visited = 0; /* visited flag, for the 'block'-walker */
 
 #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));
+  res->obst      = xmalloc (sizeof(*res->obst));
   obstack_init (res->obst);
   res->value_table = new_identities (); /* value table for global value
                        numbering for optimizing use in
@@ -113,9 +159,9 @@ new_ir_graph (entity *ent, int n_loc)
   res->outs = NULL;
 
   res->phase_state    = phase_building;
-  res->pinned         = pinned;
-  res->outs_state     = no_outs;
-  res->dom_state      = no_dom;
+  res->op_pin_state_pinned = op_pin_state_pinned;
+  res->outs_state     = outs_none;
+  res->dom_state      = dom_none;
   res->typeinfo_state = irg_typeinfo_none;
   res->loopinfo_state = loopinfo_none;
 
@@ -123,7 +169,7 @@ new_ir_graph (entity *ent, int n_loc)
   res->ent = ent;
   set_entity_irg(ent, res);
 
-  /*-- contain "inner" methods as in Pascal. --*/
+  /*--  a class type so that it can contain "inner" methods as in Pascal. --*/
   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. */
@@ -138,87 +184,104 @@ 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->no_mem  = new_ir_node(NULL, res, res->start_block, op_NoMem, mode_M, 0, NULL);
 
   /* Proj results of start node */
-  projX            = new_Proj (res->start, mode_X, pns_initial_exec);
-  res->frame       = new_Proj (res->start, mode_P_mach, pns_frame_base);
-  res->globals     = new_Proj (res->start, mode_P_mach, pns_globals);
-  res->initial_mem = new_Proj (res->start, mode_M, pns_global_store);
-  res->args        = new_Proj (res->start, mode_T, pns_args);
+  projX            = new_Proj (res->start, mode_X, pn_Start_X_initial_exec);
+  res->frame       = new_Proj (res->start, mode_P_mach, pn_Start_P_frame_base);
+  res->globals     = new_Proj (res->start, mode_P_mach, pn_Start_P_globals);
+  res->initial_mem = new_Proj (res->start, mode_M, pn_Start_M);
+  res->args        = new_Proj (res->start, mode_T, pn_Start_T_args);
 #ifdef DEBUG_libfirm
   res->graph_nr    = get_irp_new_node_nr();
 #endif
+  res->proj_args   = NULL;
 
   set_store(res->initial_mem);
 
-  add_in_edge(res->start_block, projX);
+  add_immBlock_pred(res->start_block, projX);
   /*
    * The code generation needs it. leave it in now.
    * Use of this edge is matter of discussion, unresolved. Also possible:
-   * add_in_edge(res->start_block, res->start_block), but invalid typed.
+   * add_immBlock_pred(res->start_block, res->start_block), but invalid typed.
    */
-  mature_block (res->current_block);
+  mature_immBlock (res->current_block);
 
   /*-- Make a block to start with --*/
   first_block = new_immBlock();
-  add_in_edge (first_block, projX);
+  add_immBlock_pred (first_block, projX);
 
   return res;
 }
 
 
+ir_graph *
+new_ir_graph (entity *ent, int n_loc)
+{
+  ir_graph *res = new_r_ir_graph (ent, n_loc);
+  add_irp_irg(res);          /* remember this graph global. */
+  return res;
+}
+
 /* Make a rudimentary ir graph for the constant code.
    Must look like a correct irg, spare everything else. */
 ir_graph *new_const_code_irg(void) {
   ir_graph *res;
   ir_node *projX;
 
-  res = (ir_graph *) malloc (sizeof(*res));
-  memset(res, 0, sizeof(*res));
+  res = alloc_graph();
 
   /* inform statistics here, as blocks will be already build on this graph */
   stat_new_graph(res, NULL);
 
   current_ir_graph = res;
-  res->n_loc = 1;      /* Only the memory. */
+  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_EXPLICIT_PHI_IN_STACK
   res->Phi_in_stack = NULL;
 #endif
   res->kind = k_ir_graph;
-  res->obst      = (struct obstack *) xmalloc (sizeof (struct obstack));
+  res->obst      = xmalloc (sizeof(*res->obst));
   obstack_init (res->obst);
   res->phase_state = phase_building;
-  res->pinned = pinned;
+  res->op_pin_state_pinned = op_pin_state_pinned;
   res->value_table = new_identities (); /* value table for global value
                        numbering for optimizing use in
                        iropt.c */
   res->ent = NULL;
-  res->frame_type = NULL;
-  res->start_block = new_immBlock ();
+  res->frame_type  = NULL;
+
+  /* -- The end block -- */
   res->end_block  = new_immBlock ();
   res->end        = new_End ();
   res->end_reg    = res->end;
   res->end_except = res->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->start   = new_Start ();
+  mature_immBlock(get_cur_block());  /* mature the end block */
 
+  /* -- The start block -- */
+  res->start_block = new_immBlock ();
+  res->bad     = new_ir_node (NULL, res, res->start_block, op_Bad, mode_T, 0, NULL);
+  res->no_mem  = new_ir_node (NULL, res, res->start_block, op_NoMem, mode_M, 0, NULL);
+  res->start   = new_Start ();
   /* Proj results of start node */
-  projX        = new_Proj (res->start, mode_X, pns_initial_exec);
-  add_in_edge(res->start_block, projX);
-  mature_block (res->current_block);
-  add_in_edge (new_immBlock (), projX);
-  mature_block(get_cur_block());
-  /* Set the visited flag high enough that the block will never be visited. */
+  res->initial_mem = new_Proj (res->start, mode_M, pn_Start_M);
+  projX            = new_Proj (res->start, mode_X, pn_Start_X_initial_exec);
+  add_immBlock_pred (res->start_block, projX);
+  mature_immBlock   (res->start_block);  /* mature the start block */
+
+  add_immBlock_pred (new_immBlock (), projX);
+  mature_immBlock   (get_cur_block());   /* mature the 'body' block for expressions */
+
+  /* Set the visited flag high enough that the blocks will never be visited. */
   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);
+  set_irn_visited(res->no_mem, -1);
+
+  res->phase_state = phase_high;
   return res;
 }
 
@@ -233,11 +296,18 @@ void  del_identities (pset *value_table);
    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) {
+
   stat_free_graph(irg);
-  if (irg->outs_state != no_outs) free_outs(irg);
+  if (irg->outs_state != outs_none) free_outs(irg);
   if (irg->frame_type)  free_type(irg->frame_type);
   if (irg->value_table) del_identities(irg->value_table);
-  if (irg->ent) set_entity_irg(irg->ent, NULL);  /* not set in const code irg */
+  if (irg->ent) {
+    peculiarity pec = get_entity_peculiarity (irg->ent);
+    set_entity_peculiarity (irg->ent, peculiarity_description);
+    set_entity_irg(irg->ent, NULL);  /* not set in const code irg */
+    set_entity_peculiarity (irg->ent, pec);
+  }
+
   free_End(irg->end);
   obstack_free(irg->obst,NULL);
   free(irg->obst);
@@ -254,7 +324,7 @@ void free_ir_graph (ir_graph *irg) {
    void set_irg_{attr name} (ir_graph *irg, {attr type} {attr}); */
 
 int
-(is_ir_graph)(void *thing) {
+(is_ir_graph)(const void *thing) {
   return __is_ir_graph(thing);
 }
 
@@ -271,7 +341,7 @@ get_irg_graph_nr(ir_graph *irg) {
 }
 
 ir_node *
-(get_irg_start_block)(ir_graph *irg) {
+(get_irg_start_block)(const ir_graph *irg) {
   return __get_irg_start_block(irg);
 }
 
@@ -281,7 +351,7 @@ void
 }
 
 ir_node *
-(get_irg_start)(ir_graph *irg) {
+(get_irg_start)(const ir_graph *irg) {
   return __get_irg_start(irg);
 }
 
@@ -291,7 +361,7 @@ void
 }
 
 ir_node *
-(get_irg_end_block)(ir_graph *irg) {
+(get_irg_end_block)(const ir_graph *irg) {
   return __get_irg_end_block(irg);
 }
 
@@ -301,7 +371,7 @@ void
 }
 
 ir_node *
-(get_irg_end)(ir_graph *irg) {
+(get_irg_end)(const ir_graph *irg) {
   return __get_irg_end(irg);
 }
 
@@ -311,7 +381,7 @@ void
 }
 
 ir_node *
-(get_irg_end_reg)(ir_graph *irg) {
+(get_irg_end_reg)(const ir_graph *irg) {
   return __get_irg_end_reg(irg);
 }
 
@@ -321,7 +391,7 @@ void     set_irg_end_reg (ir_graph *irg, ir_node *node) {
 }
 
 ir_node *
-(get_irg_end_except)(ir_graph *irg) {
+(get_irg_end_except)(const ir_graph *irg) {
   return __get_irg_end_except(irg);
 }
 
@@ -331,7 +401,7 @@ void     set_irg_end_except (ir_graph *irg, ir_node *node) {
 }
 
 ir_node *
-(get_irg_cstore)(ir_graph *irg) {
+(get_irg_cstore)(const ir_graph *irg) {
   return __get_irg_cstore(irg);
 }
 
@@ -341,7 +411,7 @@ void
 }
 
 ir_node *
-(get_irg_frame)(ir_graph *irg) {
+(get_irg_frame)(const ir_graph *irg) {
   return __get_irg_frame(irg);
 }
 
@@ -351,7 +421,7 @@ void
 }
 
 ir_node *
-(get_irg_globals)(ir_graph *irg) {
+(get_irg_globals)(const ir_graph *irg) {
   return __get_irg_globals(irg);
 }
 
@@ -361,8 +431,7 @@ void
 }
 
 ir_node *
-(get_irg_initial_mem)(ir_graph *irg)
-{
+(get_irg_initial_mem)(const ir_graph *irg) {
   return __get_irg_initial_mem(irg);
 }
 
@@ -372,7 +441,7 @@ void
 }
 
 ir_node *
-(get_irg_args)(ir_graph *irg) {
+(get_irg_args)(const ir_graph *irg) {
   return __get_irg_args(irg);
 }
 
@@ -381,8 +450,18 @@ void
   __set_irg_args(irg, node);
 }
 
+ir_node **
+(get_irg_proj_args) (const ir_graph *irg) {
+  return __get_irg_proj_args (irg);
+}
+
+void
+(set_irg_proj_args) (ir_graph *irg, ir_node **nodes) {
+  __set_irg_proj_args (irg, nodes);
+}
+
 ir_node *
-(get_irg_bad)(ir_graph *irg) {
+(get_irg_bad)(const ir_graph *irg) {
   return __get_irg_bad(irg);
 }
 
@@ -391,22 +470,18 @@ void
   __set_irg_bad(irg, node);
 }
 
-/* GL removed: we need unknown with mode for analyses.
 ir_node *
-get_irg_unknown (ir_graph *irg)
-{
-  return irg->unknown;
+(get_irg_no_mem)(const ir_graph *irg) {
+  return __get_irg_no_mem(irg);
 }
 
 void
-set_irg_unknown (ir_graph *irg, ir_node *node)
-{
-  irg->unknown = node;
+(set_irg_no_mem)(ir_graph *irg, ir_node *node) {
+  __set_irg_no_mem(irg, node);
 }
-*/
 
 ir_node *
-(get_irg_current_block)(ir_graph *irg) {
+(get_irg_current_block)(const ir_graph *irg) {
   return __get_irg_current_block(irg);
 }
 
@@ -416,17 +491,17 @@ void
 }
 
 entity *
-(get_irg_ent)(ir_graph *irg) {
-  return __get_irg_ent(irg);
+(get_irg_entity)(const ir_graph *irg) {
+  return __get_irg_entity(irg);
 }
 
 void
-(set_irg_ent)(ir_graph *irg, entity *ent) {
-  __set_irg_ent(irg, ent);
+(set_irg_entity)(ir_graph *irg, entity *ent) {
+  __set_irg_entity(irg, ent);
 }
 
 type *
-(get_irg_frame_type)(ir_graph *irg) {
+(get_irg_frame_type)(const ir_graph *irg) {
   return __get_irg_frame_type(irg);
 }
 
@@ -438,11 +513,11 @@ void
 
 /* To test for a frame type */
 int
-is_frame_type(type *ftp) {
+is_frame_type(const type *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));
+      const type *frame_tp = get_irg_frame_type(get_irp_irg(i));
       if (ftp == frame_tp) return true;
     }
   }
@@ -471,7 +546,7 @@ set_irg_n_loc (ir_graph *irg, int n_loc)
 
 /* Returns the obstack associated with the graph. */
 struct obstack *
-(get_irg_obstack)(ir_graph *irg) {
+(get_irg_obstack)(const ir_graph *irg) {
   return __get_irg_obstack(irg);
 }
 
@@ -497,7 +572,7 @@ int node_is_in_irgs_storage(ir_graph *irg, ir_node *n)
 }
 
 irg_phase_state
-(get_irg_phase_state)(ir_graph *irg) {
+(get_irg_phase_state)(const ir_graph *irg) {
   return __get_irg_phase_state(irg);
 }
 
@@ -506,13 +581,13 @@ void
   __set_irg_phase_low(irg);
 }
 
-op_pinned
-(get_irg_pinned)(ir_graph *irg) {
+op_pin_state
+(get_irg_pinned)(const ir_graph *irg) {
   return __get_irg_pinned(irg);
 }
 
 irg_outs_state
-(get_irg_outs_state)(ir_graph *irg) {
+(get_irg_outs_state)(const ir_graph *irg) {
   return __get_irg_outs_state(irg);
 }
 
@@ -522,7 +597,7 @@ void
 }
 
 irg_dom_state
-(get_irg_dom_state)(ir_graph *irg) {
+(get_irg_dom_state)(const ir_graph *irg) {
   return __get_irg_dom_state(irg);
 }
 
@@ -532,7 +607,7 @@ void
 }
 
 irg_loopinfo_state
-(get_irg_loopinfo_state)(ir_graph *irg) {
+(get_irg_loopinfo_state)(const ir_graph *irg) {
   return __get_irg_loopinfo_state(irg);
 }
 
@@ -557,12 +632,12 @@ set_irg_loopinfo_inconsistent(ir_graph *irg) {
 }
 
 void
-(set_irg_pinned)(ir_graph *irg, op_pinned p) {
+(set_irg_pinned)(ir_graph *irg, op_pin_state p) {
   __set_irg_pinned(irg, p);
 }
 
 irg_callee_info_state
-(get_irg_callee_info_state)(ir_graph *irg) {
+(get_irg_callee_info_state)(const ir_graph *irg) {
   return __get_irg_callee_info_state(irg);
 }
 
@@ -572,7 +647,7 @@ void
 }
 
 irg_inline_property
-(get_irg_inline_property)(ir_graph *irg) {
+(get_irg_inline_property)(const ir_graph *irg) {
   return __get_irg_inline_property(irg);
 }
 
@@ -587,15 +662,15 @@ void
 }
 
 void *
-(get_irg_link)(ir_graph *irg) {
+(get_irg_link)(const ir_graph *irg) {
   return __get_irg_link(irg);
 }
 
-/* maximum visited flag content of all ir_graph visited fields. */
-static int max_irg_visited = 0;
+/** maximum visited flag content of all ir_graph visited fields. */
+static unsigned long max_irg_visited = 0;
 
 unsigned long
-(get_irg_visited)(ir_graph *irg) {
+(get_irg_visited)(const ir_graph *irg) {
   return __get_irg_visited(irg);
 }
 
@@ -644,7 +719,7 @@ inc_max_irg_visited(void)
 }
 
 unsigned long
-(get_irg_block_visited)(ir_graph *irg) {
+(get_irg_block_visited)(const ir_graph *irg) {
   return __get_irg_block_visited(irg);
 }
 
@@ -657,3 +732,38 @@ void
 (inc_irg_block_visited)(ir_graph *irg) {
   __inc_irg_block_visited(irg);
 }
+
+
+/**
+ * walker Start->End: places Proj nodes into the same block
+ * as it's predecessors
+ *
+ * @param n    the node
+ * @param env  ignored
+ */
+static void normalize_proj_walker(ir_node *n, void *env)
+{
+  if (is_Proj(n)) {
+    ir_node *pred  = get_Proj_pred(n);
+    ir_node *block = get_nodes_block(pred);
+
+    set_nodes_block(n, block);
+  }
+}
+
+/* put the proj's into the same block as its predecessors */
+void normalize_proj_nodes(ir_graph *irg)
+{
+  irg_walk_graph(irg, NULL, normalize_proj_walker, NULL);
+	set_irg_outs_inconsistent(irg);
+}
+
+size_t register_additional_graph_data(size_t size)
+{
+	assert(!forbid_new_data && "Too late to register additional node data");
+
+	if(forbid_new_data)
+		return 0;
+
+	return additional_graph_data_size += size;
+}