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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [gencodes.c] - Rev 310
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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, 1991, 1995, 1998, 1999, 2000, 2001, 2003, 2004, 2007 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; 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_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE) 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 {"); /* 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); } puts (" CODE_FOR_nothing\n\ };\n\ \n\ #endif /* GCC_INSN_CODES_H */"); if (ferror (stdout) || fflush (stdout) || fclose (stdout)) return FATAL_EXIT_CODE; return SUCCESS_EXIT_CODE; }
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