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 /* $Id$ */
  10
  11 # ifndef _IRGRAPH_T_H_
  12 # define _IRGRAPH_T_H_
  13 # include "obst.h"
  14 # include "pset.h"
  15 # include "irgraph.h"
  16
  17 /* ir_graph holds all information for a procedure */
  18 struct ir_graph {
  19   struct entity  *ent;               /* The entity of this procedure, i.e.,
  20                                         the type of the procedure and the
  21                                         class it belongs to. */
  22   struct ir_node *start_block;       /* block the start node will belong to */
  23   struct ir_node *start;             /* start node of this ir_graph */
  24   struct ir_node *end_block;         /* block the end node will belong to */
  25   struct ir_node *end;               /* end node of this ir_graph */
  26   struct ir_node *cstore;            /* constant store -- no more needed!! */
  27   struct ir_node *frame;             /* method's frame */
  28   struct ir_node *globals;           /* pointer to the data segment containing all
  29                                         globals as well as global procedures. */
  30   struct ir_node *args;              /* methods arguments */
  31   struct ir_node *bad;               /* bad node of this ir_graph, the one and
  32                                         only in this graph */
  33   struct obstack *obst;              /* obstack where all of the ir_nodes live */
  34 #if USE_EXPICIT_PHI_IN_STACK
  35   struct Phi_in_stack *Phi_in_stack; /* needed for automatic Phi construction */
  36 #endif
  37   struct ir_node *current_block;     /* block for newly gen_*()-erated
  38                                         ir_nodes */
  39   int n_loc;                         /* number of local variable in this
  40                                         procedure including procedure parameters. */
  41   pset *value_table;                 /* value table for global value numbering
  42                                         for optimizing use in iropt.c */
  43   unsigned long visited;             /* this flag is an identifier for
  44                                         ir walk. it will be incremented,
  45                                         every time, someone walk through
  46                                         the graph */
  47   unsigned long block_visited;       /* same as visited, for a
  48                                         complete block */
  49 };
  50 # endif /* _IRGRAPH_T_H_ */