1 /* Generate from machine description: 2 - some macros CODE_FOR_... giving the insn_code_number value 3 for each of the defined standard insn names. 4 Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003, 5 2004, 2007, 2010 Free Software Foundation, Inc. 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify it under 10 the terms of the GNU General Public License as published by the Free 11 Software Foundation; either version 3, or (at your option) any later 12 version. 13 14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 15 WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17 for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 22 23 24 #include "bconfig.h" 25 #include "system.h" 26 #include "coretypes.h" 27 #include "tm.h" 28 #include "rtl.h" 29 #include "errors.h" 30 #include "gensupport.h" 31 32 static void 33 gen_insn (rtx insn, int code) 34 { 35 const char *name = XSTR (insn, 0); 36 int truth = maybe_eval_c_test (XSTR (insn, 2)); 37 38 /* Don't mention instructions whose names are the null string 39 or begin with '*'. They are in the machine description just 40 to be recognized. */ 41 if (name[0] != 0 && name[0] != '*') 42 { 43 if (truth == 0) 44 printf ("#define CODE_FOR_%s CODE_FOR_nothing\n", name); 45 else 46 printf (" CODE_FOR_%s = %d,\n", name, code); 47 } 48 } 49 50 int 51 main (int argc, char **argv) 52 { 53 rtx desc; 54 55 progname = "gencodes"; 56 57 /* We need to see all the possibilities. Elided insns may have 58 direct references to CODE_FOR_xxx in C code. */ 59 insn_elision = 0; 60 61 if (!init_rtx_reader_args (argc, argv)) 62 return (FATAL_EXIT_CODE); 63 64 puts ("\ 65 /* Generated automatically by the program `gencodes'\n\ 66 from the machine description file `md'. */\n\ 67 \n\ 68 #ifndef GCC_INSN_CODES_H\n\ 69 #define GCC_INSN_CODES_H\n\ 70 \n\ 71 enum insn_code {"); 72 73 /* Read the machine description. */ 74 75 while (1) 76 { 77 int line_no; 78 int insn_code_number; 79 80 desc = read_md_rtx (&line_no, &insn_code_number); 81 if (desc == NULL) 82 break; 83 84 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND) 85 gen_insn (desc, insn_code_number); 86 } 87 88 puts (" CODE_FOR_nothing\n\ 89 };\n\ 90 \n\ 91 #endif /* GCC_INSN_CODES_H */"); 92 93 if (ferror (stdout) || fflush (stdout) || fclose (stdout)) 94 return FATAL_EXIT_CODE; 95 96 return SUCCESS_EXIT_CODE; 97 } 98