gcc/genmddump.c

   1 /* Generate code from machine description to recognize rtl as insns.
   2    Copyright (C) 1987-2014 Free Software Foundation, Inc.
   3
   4    This file is part of GCC.
   5
   6    GCC is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    GCC is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GCC; see the file COPYING3.  If not see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20
  21 /* This program is used to produce tmp-mddump.md, which represents
  22    md-file with expanded iterators and after define_subst transformation
  23    is performed.
  24
  25    The only argument of the program is a source md-file (e.g.
  26    config/i386/i386.md).  STDERR is used for the program output.  */
  27
  28 #include "bconfig.h"
  29 #include "system.h"
  30 #include "coretypes.h"
  31 #include "tm.h"
  32 #include "rtl.h"
  33 #include "errors.h"
  34 #include "read-md.h"
  35 #include "gensupport.h"
  36
  37 \f
  38 extern int main (int, char **);
  39
  40 int
  41 main (int argc, char **argv)
  42 {
  43   rtx desc;
  44   int pattern_lineno;
  45   int code; /* not used */
  46   progname = "genmddump";
  47
  48   if (!init_rtx_reader_args (argc, argv))
  49     return (FATAL_EXIT_CODE);
  50
  51   /* Read the machine description.  */
  52   while (1)
  53     {
  54       desc = read_md_rtx (&pattern_lineno, &code);
  55       if (desc == NULL)
  56         break;
  57       printf (";; %s: %d\n", read_md_filename, pattern_lineno);
  58       print_inline_rtx (stdout, desc, 0);
  59       printf ("\n\n");
  60     }
  61
  62   fflush (stdout);
  63   return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
  64 }
  65