/* Generate from machine description:
-
- some macros CODE_FOR_... giving the insn_code_number value
for each of the defined standard insn names.
- Copyright (C) 1987, 1991 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003,
+ 2004, 2007 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 3, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-#include <stdio.h>
-#include "config.h"
+#include "bconfig.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "rtl.h"
-#include "obstack.h"
-
-static struct obstack obstack;
-struct obstack *rtl_obstack = &obstack;
-
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-
-extern void free ();
-
-char *xmalloc ();
-static void fatal ();
-void fancy_abort ();
-
-static int insn_code_number;
+#include "errors.h"
+#include "gensupport.h"
static void
-gen_insn (insn)
- rtx insn;
-{
- /* Don't mention instructions whose names are the null string.
- They are in the machine description just to be recognized. */
- if (strlen (XSTR (insn, 0)) != 0)
- printf (" CODE_FOR_%s = %d,\n", XSTR (insn, 0),
- insn_code_number);
-}
-
-char *
-xmalloc (size)
- unsigned size;
+gen_insn (rtx insn, int code)
{
- register char *val = (char *) malloc (size);
-
- if (val == 0)
- fatal ("virtual memory exhausted");
- return val;
-}
-
-char *
-xrealloc (ptr, size)
- char *ptr;
- unsigned size;
-{
- char *result = (char *) realloc (ptr, size);
- if (!result)
- fatal ("virtual memory exhausted");
- return result;
-}
+ const char *name = XSTR (insn, 0);
+ int truth = maybe_eval_c_test (XSTR (insn, 2));
-static void
-fatal (s, a1, a2)
- char *s;
-{
- fprintf (stderr, "gencodes: ");
- fprintf (stderr, s, a1, a2);
- fprintf (stderr, "\n");
- exit (FATAL_EXIT_CODE);
+ /* Don't mention instructions whose names are the null string
+ or begin with '*'. They are in the machine description just
+ to be recognized. */
+ 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);
+ }
}
-/* More 'friendly' abort that prints the line and file.
- config.h can #define abort fancy_abort if you like that sort of thing. */
-
-void
-fancy_abort ()
-{
- fatal ("Internal gcc abort.");
-}
-\f
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
rtx desc;
- FILE *infile;
- extern rtx read_rtx ();
- register int c;
- obstack_init (rtl_obstack);
+ progname = "gencodes";
- if (argc <= 1)
- fatal ("No input file name.");
+ /* We need to see all the possibilities. Elided insns may have
+ direct references to CODE_FOR_xxx in C code. */
+ insn_elision = 0;
- infile = fopen (argv[1], "r");
- if (infile == 0)
- {
- perror (argv[1]);
- exit (FATAL_EXIT_CODE);
- }
-
- init_rtl ();
-
- printf ("/* Generated automatically by the program `gencodes'\n\
-from the machine description file `md'. */\n\n");
+ if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
+ return (FATAL_EXIT_CODE);
- 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)
{
- c = read_skip_spaces (infile);
- if (c == EOF)
+ int line_no;
+ int insn_code_number;
+
+ desc = read_md_rtx (&line_no, &insn_code_number);
+ if (desc == NULL)
break;
- ungetc (c, infile);
- desc = read_rtx (infile);
if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
- {
- gen_insn (desc);
- insn_code_number++;
- }
- if (GET_CODE (desc) == DEFINE_PEEPHOLE
- || GET_CODE (desc) == DEFINE_SPLIT)
- {
- insn_code_number++;
- }
+ gen_insn (desc, insn_code_number);
}
- printf (" CODE_FOR_nothing };\n");
-
- printf ("\n#define MAX_INSN_CODE ((int) CODE_FOR_nothing)\n");
+ puts (" CODE_FOR_nothing\n\
+};\n\
+\n\
+#endif /* GCC_INSN_CODES_H */");
- printf ("#endif /* MAX_INSN_CODE */\n");
+ if (ferror (stdout) || fflush (stdout) || fclose (stdout))
+ return FATAL_EXIT_CODE;
- fflush (stdout);
- exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
- /* NOTREACHED */
- return 0;
+ return SUCCESS_EXIT_CODE;
}
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