1 # Copyright (C) 2003,2004,2005,2006,2007,2008, 2010
2 # Free Software Foundation, Inc.
3 # Contributed by Kelley Cook, June 2004.
4 # Original code from Neil Booth, May 2003.
6 # This program is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License as published by the
8 # Free Software Foundation; either version 3, or (at your option) any
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; see the file COPYING3. If not see
18 # <http://www.gnu.org/licenses/>.
20 # This Awk script reads in the option records generated from
21 # opt-gather.awk, combines the flags of duplicate options and generates a
24 # This program uses functions from opt-functions.awk
25 # Usage: awk -f opt-functions.awk -f opth-gen.awk < inputfile > options.h
35 # Collect the text and flags of each option into an array
37 if ($
1 ==
"Language") {
41 else if ($
1 ==
"TargetSave") {
42 # Make sure the declarations are put in source order
43 target_save_decl
[n_target_save
] = $
2
47 name = opt_args
("Mask", $
1)
55 extra_masks
[n_extra_masks
++] = name
60 # Dump out an enumeration into a .h file.
61 # Combine the flags of duplicate options.
63 print "/* This file is auto-generated by opth-gen.awk. */"
65 print "#ifndef OPTIONS_H"
66 print "#define OPTIONS_H"
68 print "extern int target_flags;"
69 print "extern int target_flags_explicit;"
74 for (i =
0; i
< n_opts
; i
++) {
75 if (flag_set_p
("Save", flags
[i
]))
78 name = var_name
(flags
[i
]);
86 print "extern " var_type
(flags
[i
]) name
";"
90 # All of the optimization switches gathered together so they can be saved and restored.
91 # This will allow attribute((cold)) to turn on space optimization.
93 # Change the type of normal switches from int to unsigned char to save space.
94 # Also, order the structure so that pointer fields occur first, then int
95 # fields, and then char fields to provide the best packing.
97 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
99 print "/* Structure to save/restore optimization and target specific options. */";
100 print "struct GTY(()) cl_optimization";
107 var_opt_char
[0] =
"unsigned char optimize";
108 var_opt_char
[1] =
"unsigned char optimize_size";
110 for (i =
0; i
< n_opts
; i
++) {
111 if (flag_set_p
("Optimization", flags
[i
])) {
112 name = var_name
(flags
[i
])
116 if(name in var_opt_seen
)
119 var_opt_seen
[name
]++;
120 otype = var_type_struct
(flags
[i
]);
121 if (otype ~
"^((un)?signed +)?int *$")
122 var_opt_int
[n_opt_int
++] = otype name
;
124 else if (otype ~
"^((un)?signed +)?short *$")
125 var_opt_short
[n_opt_short
++] = otype name
;
127 else if (otype ~
"^((un)?signed +)?char *$")
128 var_opt_char
[n_opt_char
++] = otype name
;
131 var_opt_other
[n_opt_other
++] = otype name
;
135 for (i =
0; i
< n_opt_other
; i
++) {
136 print " " var_opt_other
[i
] ";";
139 for (i =
0; i
< n_opt_int
; i
++) {
140 print " " var_opt_int
[i
] ";";
143 for (i =
0; i
< n_opt_short
; i
++) {
144 print " " var_opt_short
[i
] ";";
147 for (i =
0; i
< n_opt_char
; i
++) {
148 print " " var_opt_char
[i
] ";";
154 # Target and optimization save/restore/print functions.
155 print "/* Structure to save/restore selected target specific options. */";
156 print "struct GTY(()) cl_target_option";
164 for (i =
0; i
< n_target_save
; i
++) {
165 if (target_save_decl
[i
] ~
"^((un)?signed +)?int +[_a-zA-Z0-9]+$")
166 var_target_int
[n_target_int
++] = target_save_decl
[i
];
168 else if (target_save_decl
[i
] ~
"^((un)?signed +)?short +[_a-zA-Z0-9]+$")
169 var_target_short
[n_target_short
++] = target_save_decl
[i
];
171 else if (target_save_decl
[i
] ~
"^((un)?signed +)?char +[_a-zA-Z0-9]+$")
172 var_target_char
[n_target_char
++] = target_save_decl
[i
];
175 var_target_other
[n_target_other
++] = target_save_decl
[i
];
179 for (i =
0; i
< n_opts
; i
++) {
180 if (flag_set_p
("Save", flags
[i
])) {
181 name = var_name
(flags
[i
])
183 name =
"target_flags";
185 if(name in var_save_seen
)
188 var_save_seen
[name
]++;
189 otype = var_type_struct
(flags
[i
])
190 if (otype ~
"^((un)?signed +)?int *$")
191 var_target_int
[n_target_int
++] = otype name
;
193 else if (otype ~
"^((un)?signed +)?short *$")
194 var_target_short
[n_target_short
++] = otype name
;
196 else if (otype ~
"^((un)?signed +)?char *$")
197 var_target_char
[n_target_char
++] = otype name
;
200 var_target_other
[n_target_other
++] = otype name
;
204 var_target_int
[n_target_int
++] =
"int target_flags";
207 for (i =
0; i
< n_target_other
; i
++) {
208 print " " var_target_other
[i
] ";";
211 for (i =
0; i
< n_target_int
; i
++) {
212 print " " var_target_int
[i
] ";";
215 for (i =
0; i
< n_target_short
; i
++) {
216 print " " var_target_short
[i
] ";";
219 for (i =
0; i
< n_target_char
; i
++) {
220 print " " var_target_char
[i
] ";";
226 print "/* Save optimization variables into a structure. */"
227 print "extern void cl_optimization_save (struct cl_optimization *);";
229 print "/* Restore optimization variables from a structure. */";
230 print "extern void cl_optimization_restore (struct cl_optimization *);";
232 print "/* Print optimization variables from a structure. */";
233 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
235 print "/* Save selected option variables into a structure. */"
236 print "extern void cl_target_option_save (struct cl_target_option *);";
238 print "/* Restore selected option variables from a structure. */"
239 print "extern void cl_target_option_restore (struct cl_target_option *);";
241 print "/* Print target option variables from a structure. */";
242 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
246 for (i =
0; i
< n_opts
; i
++) {
247 name = opt_args
("Mask", flags
[i
])
248 vname = var_name
(flags
[i
])
251 mask =
"OPTION_MASK_"
253 if (name
!= "" && !flag_set_p
("MaskExists", flags
[i
]))
254 print "#define " mask name
" (1 << " masknum
[vname
]++ ")"
256 for (i =
0; i
< n_extra_masks
; i
++) {
257 print "#define MASK_" extra_masks
[i
] " (1 << " masknum
[""]++ ")"
260 for (var in masknum
) {
261 if (masknum
[var
] > 31) {
263 print "#error too many target masks"
265 print "#error too many masks for " var
270 for (i =
0; i
< n_opts
; i
++) {
271 name = opt_args
("Mask", flags
[i
])
272 vname = var_name
(flags
[i
])
274 mask =
"OPTION_MASK_"
276 vname =
"target_flags"
280 if (name
!= "" && !flag_set_p
("MaskExists", flags
[i
]))
281 print "#define " macro name \
282 " ((" vname
" & " mask name
") != 0)"
284 for (i =
0; i
< n_extra_masks
; i
++) {
285 print "#define TARGET_" extra_masks
[i
] \
286 " ((target_flags & MASK_" extra_masks
[i
] ") != 0)"
290 for (i =
0; i
< n_opts
; i
++) {
291 opt = opt_args
("InverseMask", flags
[i
])
293 vname = var_name
(flags
[i
])
295 mask =
"OPTION_MASK_"
297 vname =
"target_flags"
301 print "#define " macro nth_arg
(1, opt
) \
302 " ((" vname
" & " mask nth_arg
(0, opt
) ") == 0)"
307 for (i =
0; i
< n_langs
; i
++) {
308 macros
[i
] =
"CL_" langs
[i
]
309 gsub( "[^A-Za-z0-9_]", "X", macros
[i
] )
310 s =
substr(" ", length (macros
[i
]))
311 print "#define " macros
[i
] s
" (1 << " i
")"
313 print "#define CL_LANG_ALL ((1 << " n_langs
") - 1)"
316 print "enum opt_code"
319 for (i =
0; i
< n_opts
; i
++)
320 back_chain
[i
] =
"N_OPTS";
323 for (i =
0; i
< n_opts
; i
++) {
324 # Combine the flags of identical switches. Switches
325 # appear many times if they are handled by many front
327 while( i
+ 1 != n_opts
&& opts
[i
] == opts
[i
+ 1] ) {
328 flags
[i
+ 1] = flags
[i
] " " flags
[i
+ 1];
332 len =
length (opts
[i
]);
333 enum = opt_enum
(opts
[i
])
334 enum_string = enum
" = " enum_value
","
336 # Aliases do not get enumeration names.
337 if ((flag_set_p
("Alias.*", flags
[i
]) \
338 && !flag_set_p
("SeparateAlias", flags
[i
])) \
339 || flag_set_p
("Ignore", flags
[i
])) {
340 enum_string =
"/* " enum_string
" */"
343 # If this switch takes joined arguments, back-chain all
344 # subsequent switches to it for which it is a prefix. If
345 # a later switch S is a longer prefix of a switch T, T
346 # will be back-chained to S in a later iteration of this
347 # for() loop, which is what we want.
348 if (flag_set_p
("Joined.*", flags
[i
])) {
349 for (j = i
+ 1; j
< n_opts
; j
++) {
350 if (substr (opts
[j
], 1, len
) != opts
[i
])
352 back_chain
[j
] = enum
;
357 length (enum_string
))
362 hlp =
"N_(\"" help
[i
] "\")";
364 print " " enum_string s
"/* -" opts
[i
] " */"
369 print " OPT_SPECIAL_unknown,"
370 print " OPT_SPECIAL_ignore,"
371 print " OPT_SPECIAL_program_name,"
372 print " OPT_SPECIAL_input_file"
375 print "#endif /* OPTIONS_H */"