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