gcc/bi-arity.c

   1 /* Bytecode Interpreter utility to generate arity table.
   2    Copyright (C) 1993, 1998 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21
  22 #include "hconfig.h"
  23 #include "system.h"
  24 #include "bi-defs.h"
  25
  26 int
  27 length (n)
  28      struct node *n;
  29 {
  30   int k;
  31
  32   for (k = 0; n; n = n->next)
  33     ++k;
  34   return k;
  35 }
  36
  37 int
  38 main ()
  39 {
  40   struct def *d;
  41   struct variation *v;
  42   struct node *n;
  43
  44   yyparse ();
  45   reverse ();
  46
  47   for (d = defs; d; d = d->next)
  48     for (v = d->variations; v; v = v->next)
  49       {
  50         printf ("{ %d, %d, %d, {", length (v->inputs),
  51                length (v->outputs), length (v->literals));
  52         for (n = v->literals; n; n = n->next)
  53           printf ("(char) %scode, ", n->text);
  54         if (v->literals == 0)
  55           printf ("0");
  56         printf ("}},\n");
  57       }
  58
  59   fflush (stdout);
  60   exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
  61   /* NOTREACHED */
  62   return 0;
  63 }
  64
  65 /* Safely allocate NBYTES bytes of memory. Returns pointer to block of
  66    memory.  */
  67
  68 char *
  69 xmalloc (nbytes)
  70      int nbytes;
  71 {
  72   char *tmp = (char *) malloc (nbytes);
  73
  74   if (!tmp)
  75     {
  76       fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes);
  77       exit (FATAL_EXIT_CODE);
  78     }
  79
  80   return tmp;
  81 }
  82
  83 /* More 'friendly' abort that prints the line and file.
  84    hconfig.h can #define abort fancy_abort if you like that sort of thing.  */
  85
  86 void
  87 fancy_abort ()
  88 {
  89   fprintf (stderr, "Internal gcc abort.\n");
  90   exit (FATAL_EXIT_CODE);
  91 }