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/* Generate from machine description:
- some macros CODE_FOR_... giving the insn_code_number value
for each of the defined standard insn names.
Copyright (C) 1987-2015 Free Software Foundation, Inc.
This file is part of GCC.
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.
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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "bconfig.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "rtl.h"
#include "errors.h"
#include "gensupport.h"
static void
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 (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);
}
}
int
main (int argc, char **argv)
{
rtx desc;
int last = 1;
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 (!init_rtx_reader_args (argc, argv))
return (FATAL_EXIT_CODE);
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 {\n\
CODE_FOR_nothing = 0,\n");
/* Read the machine description. */
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, insn_code_number);
last = insn_code_number + 1;
}
}
printf (" LAST_INSN_CODE = %d\n\
};\n\
\n\
#endif /* GCC_INSN_CODES_H */\n", last);
if (ferror (stdout) || fflush (stdout) || fclose (stdout))
return FATAL_EXIT_CODE;
return SUCCESS_EXIT_CODE;
}
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