nsz Git - libfirm/blob - ir/ir/irgraph_t.h

   1 /* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
   2 ** All rights reserved.
   3 **
   4 ** Authors: Martin Trapp, Christian Schaefer
   5 **
   6 ** irgraph.h: ir graph construction
   7 */
   8
   9 # ifndef _IRGRAPH_T_H_
  10 # define _IRGRAPH_T_H_
  11 # include "obst.h"
  12 # include "pset.h"
  13 # include "irgraph.h"
  14
  15 /* ir_graph holds all information for a procedure */
  16 struct ir_graph {
  17   struct entity  *ent;               /* The entity of this procedure, i.e.,
  18                                         the type of the procedure and the
  19                                         class it belongs to. */
  20   struct ir_node *start_block;       /* block the start node will belong to */
  21   struct ir_node *start;             /* start node of this ir_graph */
  22   struct ir_node *end_block;         /* block the end node will belong to */
  23   struct ir_node *end;               /* end node of this ir_graph */
  24   struct ir_node *cstore;            /* constant store -- no more needed!! */
  25   struct ir_node *frame;             /* method's frame */
  26   struct ir_node *globals;           /* pointer to the data segment containing all
  27                                         globals as well as global procedures. */
  28   struct ir_node *args;              /* methods arguments */
  29   struct ir_node *bad;               /* bad node of this ir_graph, the one and
  30                                         only in this graph */
  31   struct obstack *obst;              /* obstack where all of the ir_nodes live */
  32 #if USE_EXPICIT_PHI_IN_STACK
  33   struct Phi_in_stack *Phi_in_stack; /* needed for automatic Phi construction */
  34 #endif
  35   struct ir_node *current_block;     /* block for newly gen_*()-erated
  36                                         ir_nodes */
  37   int n_loc;                         /* number of local variable in this
  38                                         procedure including procedure parameters. */
  39   pset *value_table;                 /* value table for global value numbering
  40                                         for optimizing use in iropt.c */
  41   unsigned long visited;             /* this flag is an identifier for
  42                                         ir walk. it will be incremented,
  43                                         every time, someone walk through
  44                                         the graph */
  45   unsigned long block_visited;       /* same as visited, for a
  46                                         complete block */
  47 };
  48 # endif /* _IRGRAPH_T_H_ */