fixed bugs in remove_bad_predecessors.

[libfirm] / ir / ir / irgraph.c

diff --git a/ir/ir/irgraph.c b/ir/ir/irgraph.c
index a35e8ef..3f00b28 100644 (file)
--- a/ir/ir/irgraph.c
+++ b/ir/ir/irgraph.c
@@ -19,6 +19,7 @@
 # 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"
@@ -36,12 +37,24 @@ 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;
@@ -66,7 +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;
@@ -80,7 +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()) {
@@ -138,11 +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->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, 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
@@ -167,6 +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) {
@@ -180,7 +201,7 @@ ir_graph *new_const_code_irg(void) {
   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
@@ -201,22 +222,26 @@ ir_graph *new_const_code_irg(void) {
   res->end        = new_End ();
   res->end_reg    = res->end;
   res->end_except = res->end;
-  mature_immBlock(get_cur_block());
-  res->bad = new_ir_node (NULL, res, res->start_block, op_Bad, mode_T, 0, NULL);
+  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->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);
 
   /* Proj results of start node */
   projX        = new_Proj (res->start, mode_X, pn_Start_X_initial_exec);
-  add_immBlock_pred(res->start_block, projX);
-  mature_immBlock (res->current_block);
+  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_immBlock   (get_cur_block());   /* mature the 'body' block for expressions */
   /* Set the visited flag high enough that the block 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;
@@ -233,6 +258,7 @@ 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 != outs_none) free_outs(irg);
   if (irg->frame_type)  free_type(irg->frame_type);
@@ -260,7 +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);
 }
 
@@ -277,7 +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);
 }
 
@@ -287,7 +313,7 @@ void
 }
 
 ir_node *
-(get_irg_start)(ir_graph *irg) {
+(get_irg_start)(const ir_graph *irg) {
   return __get_irg_start(irg);
 }
 
@@ -297,7 +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);
 }
 
@@ -307,7 +333,7 @@ void
 }
 
 ir_node *
-(get_irg_end)(ir_graph *irg) {
+(get_irg_end)(const ir_graph *irg) {
   return __get_irg_end(irg);
 }
 
@@ -317,7 +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);
 }
 
@@ -327,7 +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);
 }
 
@@ -337,7 +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);
 }
 
@@ -347,7 +373,7 @@ void
 }
 
 ir_node *
-(get_irg_frame)(ir_graph *irg) {
+(get_irg_frame)(const ir_graph *irg) {
   return __get_irg_frame(irg);
 }
 
@@ -357,7 +383,7 @@ void
 }
 
 ir_node *
-(get_irg_globals)(ir_graph *irg) {
+(get_irg_globals)(const ir_graph *irg) {
   return __get_irg_globals(irg);
 }
 
@@ -367,8 +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);
 }
 
@@ -378,7 +403,7 @@ void
 }
 
 ir_node *
-(get_irg_args)(ir_graph *irg) {
+(get_irg_args)(const ir_graph *irg) {
   return __get_irg_args(irg);
 }
 
@@ -388,7 +413,7 @@ void
 }
 
 ir_node *
-(get_irg_bad)(ir_graph *irg) {
+(get_irg_bad)(const ir_graph *irg) {
   return __get_irg_bad(irg);
 }
 
@@ -397,22 +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);
 }
 
@@ -422,17 +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);
 }
 
@@ -444,11 +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;
     }
   }
@@ -477,7 +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);
 }
 
@@ -503,7 +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);
 }
 
@@ -513,12 +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);
 }
 
@@ -528,7 +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);
 }
 
@@ -538,7 +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);
 }
 
@@ -568,7 +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);
 }
 
@@ -578,7 +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);
 }
 
@@ -593,7 +614,7 @@ void
 }
 
 void *
-(get_irg_link)(ir_graph *irg) {
+(get_irg_link)(const ir_graph *irg) {
   return __get_irg_link(irg);
 }
 
@@ -601,7 +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);
 }
 
@@ -650,7 +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);
 }