nsz Git - libfirm/blob - ir/st/exc.h

   1 /* Copyright (c) 2002 by Universität Karlsruhe (TH).  All Rights Reserved */
   2 /*
   3 ** Time-stamp: <Friday, 26.07.2002 15:43:30h liekweg@i44pc11.info.uni-karlsruhe.de>
   4 */
   5
   6 /***
   7    NAME
   8      exc
   9    PURPOSE
  10      Helper functions for exceptions
  11    NOTES
  12      not quite complete
  13    HISTORY
  14      liekweg - Mar 4, 2002: Created.
  15    CVS:
  16      $Id$
  17 ***/
  18
  19 # include "irnode.h"
  20
  21 # ifndef _EXC_H_
  22 # define _EXC_H_
  23
  24 # include "st.h"
  25 # include "irop.h"
  26 # include "irouts.h"
  27
  28 # include <bool.h>
  29
  30 typedef enum {
  31   exc_invalid = 0,                                      /* not yet computed */
  32   exc_normal,                                   /* normal CF */
  33
  34   /* must push a new exc context at entry of block: */
  35   exc_region,                                   /* region entry */
  36
  37   /* must pop current exc context at EXIT of block */
  38   exc_exit,                                             /* region exit */
  39
  40   /* must pop current exc context at entry of block */
  41   exc_handler,                                  /* handler entry */
  42
  43   exc_max                                               /* maximum value of enum for 'bounds checking' */
  44 } exc_t;
  45
  46 const char *exc_to_string (exc_t);
  47
  48 bool is_handler_entry (ir_graph*, ir_node*);
  49 bool is_region_entry  (ir_graph*, ir_node*);
  50 bool is_handler_block (ir_graph*, ir_node*);
  51 bool is_cont_entry    (ir_graph*, ir_node*);
  52
  53
  54 # endif /* def _EXC_H_ */