X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fgencodes.c;h=13aa2c58773f1165ac35f829df2d80cb9a68812f;hb=49d8175ba52ce26b83db2788ae0e86cb8f515c5f;hp=ab96d9625cff5c423dc7d9ab0d942066a2b8b725;hpb=11c11fb6a87b15910003eaa916304a01643c2bb8;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/gencodes.c b/gcc/gencodes.c
index ab96d9625cf..13aa2c58773 100644
--- a/gcc/gencodes.c
+++ b/gcc/gencodes.c
@@ -2,121 +2,108 @@
    - some macros CODE_FOR_... giving the insn_code_number value
    for each of the defined standard insn names.
    Copyright (C) 1987, 1991, 1995, 1998,
-   1999, 2000 Free Software Foundation, Inc.
+   1999, 2000, 2001, 2003 Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
 
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
 
 You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
 
 
-#include "hconfig.h"
+#include "bconfig.h"
 #include "system.h"
+#include "coretypes.h"
+#include "tm.h"
 #include "rtl.h"
 #include "errors.h"
 #include "gensupport.h"
 
-
-static int insn_code_number;
-
-static void gen_insn PARAMS ((rtx));
-static int print_md_constant PARAMS ((void **, void *));
-
 static void
-gen_insn (insn)
-     rtx insn;
+gen_insn (rtx insn, int code)
 {
+  const char *name = XSTR (insn, 0);
+  int truth = maybe_eval_c_test (XSTR (insn, 2));
+
   /* Don't mention instructions whose names are the null string
      or begin with '*'.  They are in the machine description just
      to be recognized.  */
-  if (XSTR (insn, 0)[0] != 0 && XSTR (insn, 0)[0] != '*')
-    printf ("  CODE_FOR_%s = %d,\n", XSTR (insn, 0),
-	    insn_code_number);
+  if (name[0] != 0 && name[0] != '*')
+    {
+      if (truth == 0)
+	printf ("#define CODE_FOR_%s CODE_FOR_nothing\n", name);
+      else
+	printf ("  CODE_FOR_%s = %d,\n", name, code);
+    }
 }
 
-extern int main PARAMS ((int, char **));
-
 int
-main (argc, argv)
-     int argc;
-     char **argv;
+main (int argc, char **argv)
 {
   rtx desc;
 
   progname = "gencodes";
 
+  /* We need to see all the possibilities.  Elided insns may have
+     direct references to CODE_FOR_xxx in C code.  */
+  insn_elision = 0;
+
   if (argc <= 1)
-    fatal ("No input file name.");
+    fatal ("no input file name");
 
-  if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+  if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
     return (FATAL_EXIT_CODE);
 
-  printf ("/* Generated automatically by the program `gencodes'\n\
-from the machine description file `md'.  */\n\n");
-
-  printf ("#ifndef MAX_INSN_CODE\n\n");
+  puts ("\
+/* Generated automatically by the program `gencodes'\n\
+   from the machine description file `md'.  */\n\
+\n\
+#ifndef GCC_INSN_CODES_H\n\
+#define GCC_INSN_CODES_H\n\
+\n\
+enum insn_code {");
 
   /* Read the machine description.  */
 
-  insn_code_number = 0;
-  printf ("enum insn_code {\n");
-
   while (1)
     {
       int line_no;
+      int insn_code_number;
 
       desc = read_md_rtx (&line_no, &insn_code_number);
       if (desc == NULL)
 	break;
 
       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
-	gen_insn (desc);
+	gen_insn (desc, insn_code_number);
     }
 
-  printf ("  CODE_FOR_nothing = %d };\n", insn_code_number + 1);
-
-  printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n\n");
+  puts ("  CODE_FOR_nothing\n\
+};\n\
+\n\
+#endif /* GCC_INSN_CODES_H */");
 
-  traverse_md_constants (print_md_constant, stdout);
+  if (ferror (stdout) || fflush (stdout) || fclose (stdout))
+    return FATAL_EXIT_CODE;
 
-  printf ("\n#endif /* MAX_INSN_CODE */\n");
-
-  fflush (stdout);
-  return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
+  return SUCCESS_EXIT_CODE;
 }
 
 /* Define this so we can link with print-rtl.o to get debug_rtx function.  */
 
 const char *
-get_insn_name (code)
-     int code ATTRIBUTE_UNUSED;
+get_insn_name (int code ATTRIBUTE_UNUSED)
 {
   return NULL;
 }
-
-/* Called via traverse_md_constants; emit a #define for
-   the current constant definition.  */
-
-static int
-print_md_constant (slot, info)
-     void **slot;
-     void *info;
-{
-  struct md_constant *def = *slot;
-  FILE *file = info;
-
-  fprintf (file, "#define %s %s\n", def->name, def->value);
-  return 1;
-}