comparison gcc/gencodes.c @ 16:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents f6334be47118
children 84e7813d76e9
comparison
equal deleted inserted replaced
15:561a7518be6b 16:04ced10e8804
1 /* Generate from machine description: 1 /* Generate from machine description:
2 - some macros CODE_FOR_... giving the insn_code_number value 2 - some macros CODE_FOR_... giving the insn_code_number value
3 for each of the defined standard insn names. 3 for each of the defined standard insn names.
4 Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003, 4 Copyright (C) 1987-2017 Free Software Foundation, Inc.
5 2004, 2007, 2010 Free Software Foundation, Inc.
6 5
7 This file is part of GCC. 6 This file is part of GCC.
8 7
9 GCC is free software; you can redistribute it and/or modify it under 8 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 9 the terms of the GNU General Public License as published by the Free
28 #include "rtl.h" 27 #include "rtl.h"
29 #include "errors.h" 28 #include "errors.h"
30 #include "gensupport.h" 29 #include "gensupport.h"
31 30
32 static void 31 static void
33 gen_insn (rtx insn, int code) 32 gen_insn (md_rtx_info *info)
34 { 33 {
35 const char *name = XSTR (insn, 0); 34 const char *name = XSTR (info->def, 0);
36 int truth = maybe_eval_c_test (XSTR (insn, 2)); 35 int truth = maybe_eval_c_test (XSTR (info->def, 2));
37 36
38 /* Don't mention instructions whose names are the null string 37 /* Don't mention instructions whose names are the null string
39 or begin with '*'. They are in the machine description just 38 or begin with '*'. They are in the machine description just
40 to be recognized. */ 39 to be recognized. */
41 if (name[0] != 0 && name[0] != '*') 40 if (name[0] != 0 && name[0] != '*')
42 { 41 {
43 if (truth == 0) 42 if (truth == 0)
44 printf ("#define CODE_FOR_%s CODE_FOR_nothing\n", name); 43 printf (",\n CODE_FOR_%s = CODE_FOR_nothing", name);
45 else 44 else
46 printf (" CODE_FOR_%s = %d,\n", name, code); 45 printf (",\n CODE_FOR_%s = %d", name, info->index);
47 } 46 }
48 } 47 }
49 48
50 int 49 int
51 main (int argc, char **argv) 50 main (int argc, const char **argv)
52 { 51 {
53 rtx desc;
54
55 progname = "gencodes"; 52 progname = "gencodes";
56 53
57 /* We need to see all the possibilities. Elided insns may have 54 /* We need to see all the possibilities. Elided insns may have
58 direct references to CODE_FOR_xxx in C code. */ 55 direct references to CODE_FOR_xxx in C code. */
59 insn_elision = 0; 56 insn_elision = 0;
60 57
61 if (!init_rtx_reader_args (argc, argv)) 58 if (!init_rtx_reader_args (argc, argv))
62 return (FATAL_EXIT_CODE); 59 return (FATAL_EXIT_CODE);
63 60
64 puts ("\ 61 printf ("\
65 /* Generated automatically by the program `gencodes'\n\ 62 /* Generated automatically by the program `gencodes'\n\
66 from the machine description file `md'. */\n\ 63 from the machine description file `md'. */\n\
67 \n\ 64 \n\
68 #ifndef GCC_INSN_CODES_H\n\ 65 #ifndef GCC_INSN_CODES_H\n\
69 #define GCC_INSN_CODES_H\n\ 66 #define GCC_INSN_CODES_H\n\
70 \n\ 67 \n\
71 enum insn_code {"); 68 enum insn_code {\n\
69 CODE_FOR_nothing = 0");
72 70
73 /* Read the machine description. */ 71 /* Read the machine description. */
74 72
75 while (1) 73 md_rtx_info info;
76 { 74 while (read_md_rtx (&info))
77 int line_no; 75 switch (GET_CODE (info.def))
78 int insn_code_number; 76 {
79 77 case DEFINE_INSN:
80 desc = read_md_rtx (&line_no, &insn_code_number); 78 case DEFINE_EXPAND:
81 if (desc == NULL) 79 gen_insn (&info);
82 break; 80 break;
83 81
84 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND) 82 default:
85 gen_insn (desc, insn_code_number); 83 break;
86 } 84 }
87 85
88 puts (" CODE_FOR_nothing\n\ 86 printf ("\n};\n\
89 };\n\
90 \n\ 87 \n\
91 #endif /* GCC_INSN_CODES_H */"); 88 const unsigned int NUM_INSN_CODES = %d;\n\
89 #endif /* GCC_INSN_CODES_H */\n", get_num_insn_codes ());
92 90
93 if (ferror (stdout) || fflush (stdout) || fclose (stdout)) 91 if (ferror (stdout) || fflush (stdout) || fclose (stdout))
94 return FATAL_EXIT_CODE; 92 return FATAL_EXIT_CODE;
95 93
96 return SUCCESS_EXIT_CODE; 94 return SUCCESS_EXIT_CODE;