fixed bugs in remove_bad_predecessors.

[libfirm] / ir / ir / irgraph.c

diff --git a/ir/ir/irgraph.c b/ir/ir/irgraph.c
index e079d12..3f00b28 100644 (file)
--- a/ir/ir/irgraph.c
+++ b/ir/ir/irgraph.c
@@ -79,7 +79,7 @@ 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;
@@ -93,7 +93,6 @@ new_ir_graph (entity *ent, int n_loc)
   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()) {
@@ -151,10 +150,12 @@ 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->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, 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->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
@@ -179,6 +180,14 @@ new_ir_graph (entity *ent, int n_loc)
 }
 
 
+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) {
@@ -214,7 +223,8 @@ ir_graph *new_const_code_irg(void) {
   res->end_reg    = res->end;
   res->end_except = res->end;
   mature_immBlock(get_cur_block());  /* mature the end block */
-  res->bad = new_ir_node (NULL, 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->no_mem  = new_ir_node (NULL, res, res->start_block, op_NoMem, mode_M, 0, NULL);
   res->start   = new_Start ();
   res->initial_mem = new_Proj (res->start, mode_M, pn_Start_M);
 
@@ -231,6 +241,7 @@ ir_graph *new_const_code_irg(void) {
   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;
@@ -275,7 +286,7 @@ 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);
 }
 
@@ -292,7 +303,7 @@ 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);
 }
 
@@ -302,7 +313,7 @@ void
 }
 
 ir_node *
-(get_irg_start)(ir_graph *irg) {
+(get_irg_start)(const ir_graph *irg) {
   return __get_irg_start(irg);
 }
 
@@ -312,7 +323,7 @@ void
 }
 
 ir_node *
-(get_irg_end_block)(ir_graph *irg) {
+(get_irg_end_block)(const ir_graph *irg) {
   return __get_irg_end_block(irg);
 }
 
@@ -322,7 +333,7 @@ void
 }
 
 ir_node *
-(get_irg_end)(ir_graph *irg) {
+(get_irg_end)(const ir_graph *irg) {
   return __get_irg_end(irg);
 }
 
@@ -332,7 +343,7 @@ void
 }
 
 ir_node *
-(get_irg_end_reg)(ir_graph *irg) {
+(get_irg_end_reg)(const ir_graph *irg) {
   return __get_irg_end_reg(irg);
 }
 
@@ -342,7 +353,7 @@ 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);
 }
 
@@ -352,7 +363,7 @@ 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);
 }
 
@@ -362,7 +373,7 @@ void
 }
 
 ir_node *
-(get_irg_frame)(ir_graph *irg) {
+(get_irg_frame)(const ir_graph *irg) {
   return __get_irg_frame(irg);
 }
 
@@ -372,7 +383,7 @@ void
 }
 
 ir_node *
-(get_irg_globals)(ir_graph *irg) {
+(get_irg_globals)(const ir_graph *irg) {
   return __get_irg_globals(irg);
 }
 
@@ -382,8 +393,7 @@ void
 }
 
 ir_node *
-(get_irg_initial_mem)(ir_graph *irg)
-{
+(get_irg_initial_mem)(const ir_graph *irg) {
   return __get_irg_initial_mem(irg);
 }
 
@@ -393,7 +403,7 @@ void
 }
 
 ir_node *
-(get_irg_args)(ir_graph *irg) {
+(get_irg_args)(const ir_graph *irg) {
   return __get_irg_args(irg);
 }
 
@@ -403,7 +413,7 @@ void
 }
 
 ir_node *
-(get_irg_bad)(ir_graph *irg) {
+(get_irg_bad)(const ir_graph *irg) {
   return __get_irg_bad(irg);
 }
 
@@ -412,22 +422,18 @@ 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);
 }
 
@@ -437,17 +443,17 @@ void
 }
 
 entity *
-(get_irg_entity)(ir_graph *irg) {
-  return __get_irg_ent(irg);
+(get_irg_entity)(const ir_graph *irg) {
+  return __get_irg_entity(irg);
 }
 
 void
 (set_irg_entity)(ir_graph *irg, entity *ent) {
-  __set_irg_ent(irg, 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);
 }
 
@@ -459,11 +465,11 @@ 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;
     }
   }
@@ -492,7 +498,7 @@ 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);
 }
 
@@ -518,7 +524,7 @@ 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);
 }
 
@@ -528,12 +534,12 @@ void
 }
 
 op_pin_state
-(get_irg_pinned)(ir_graph *irg) {
+(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);
 }
 
@@ -543,7 +549,7 @@ 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);
 }
 
@@ -553,7 +559,7 @@ 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);
 }
 
@@ -583,7 +589,7 @@ void
 }
 
 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);
 }
 
@@ -593,7 +599,7 @@ 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);
 }
 
@@ -608,7 +614,7 @@ void
 }
 
 void *
-(get_irg_link)(ir_graph *irg) {
+(get_irg_link)(const ir_graph *irg) {
   return __get_irg_link(irg);
 }
 
@@ -616,7 +622,7 @@ void *
 static int max_irg_visited = 0;
 
 unsigned long
-(get_irg_visited)(ir_graph *irg) {
+(get_irg_visited)(const ir_graph *irg) {
   return __get_irg_visited(irg);
 }
 
@@ -665,7 +671,7 @@ 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);
 }
 
@@ -678,20 +684,3 @@ void
 (inc_irg_block_visited)(ir_graph *irg) {
   __inc_irg_block_visited(irg);
 }
-
-/* is irg a pseudo graph for analysis? */
-int is_pseudo_ir_graph(ir_graph *irg)
-{
-  int res = false;
-  entity *ent;
-
-  assert(irg && "nothing here");
-  assert(is_ir_graph(irg) && "no ir_graph given");
-
-  ent = get_irg_entity(irg);
-  if(visibility_external_allocated == get_entity_visibility(ent)
-     && peculiarity_existent == get_entity_peculiarity(ent)) {
-    res = true;
-  }
-  return(res);
-}