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96 lines
2.4 KiB
C++
96 lines
2.4 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) 1987-2024 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 3, 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 COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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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 (md_rtx_info *info)
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{
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const char *name = XSTR (info->def, 0);
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int truth = maybe_eval_c_test (XSTR (info->def, 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 (",\n CODE_FOR_%s = CODE_FOR_nothing", name);
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else
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printf (",\n CODE_FOR_%s = %d", name, info->index);
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}
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}
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int
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main (int argc, const char **argv)
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{
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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 (!init_rtx_reader_args (argc, argv))
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return (FATAL_EXIT_CODE);
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printf ("\
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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 {\n\
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CODE_FOR_nothing = 0");
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/* Read the machine description. */
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md_rtx_info info;
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while (read_md_rtx (&info))
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switch (GET_CODE (info.def))
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{
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case DEFINE_INSN:
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case DEFINE_EXPAND:
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gen_insn (&info);
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break;
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default:
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break;
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}
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printf ("\n};\n\
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\n\
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const unsigned int NUM_INSN_CODES = %d;\n\
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#endif /* GCC_INSN_CODES_H */\n", get_num_insn_codes ());
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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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