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4291d9c8 | 1 | /* Top level of GNU C compiler |
87e11268 | 2 | Copyright (C) 1987, 88, 89, 92-98, 1999 Free Software Foundation, Inc. |
4291d9c8 RS |
3 | |
4 | This file is part of GNU CC. | |
5 | ||
6 | GNU CC is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU CC 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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU CC; see the file COPYING. If not, write to | |
e9fa0c7c RK |
18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
4291d9c8 | 20 | |
4291d9c8 RS |
21 | /* This is the top level of cc1/c++. |
22 | It parses command args, opens files, invokes the various passes | |
23 | in the proper order, and counts the time used by each. | |
24 | Error messages and low-level interface to malloc also handled here. */ | |
25 | ||
26 | #include "config.h" | |
670ee920 KG |
27 | #undef FLOAT /* This is for hpux. They should change hpux. */ |
28 | #undef FFS /* Some systems define this in param.h. */ | |
29 | #include "system.h" | |
4291d9c8 RS |
30 | #include <signal.h> |
31 | #include <setjmp.h> | |
956d6950 JL |
32 | |
33 | #ifdef HAVE_SYS_RESOURCE_H | |
34 | # include <sys/resource.h> | |
35 | #endif | |
36 | ||
37 | #ifdef HAVE_SYS_TIMES_H | |
38 | # include <sys/times.h> | |
eb910b5a | 39 | #endif |
4291d9c8 RS |
40 | |
41 | #include "input.h" | |
42 | #include "tree.h" | |
4291d9c8 RS |
43 | #include "rtl.h" |
44 | #include "flags.h" | |
45 | #include "insn-attr.h" | |
e5e809f4 JL |
46 | #include "insn-codes.h" |
47 | #include "insn-config.h" | |
48 | #include "recog.h" | |
d0d4af87 | 49 | #include "defaults.h" |
e14417fa | 50 | #include "output.h" |
3d195391 | 51 | #include "except.h" |
49ad7cfa | 52 | #include "function.h" |
a0c8e1b2 | 53 | #include "toplev.h" |
114791ea | 54 | #include "expr.h" |
b1eeb243 | 55 | #include "basic-block.h" |
ab87f8c8 | 56 | #include "intl.h" |
0a25f1f5 | 57 | #include "ggc.h" |
f246a305 | 58 | |
76ead72b RL |
59 | #ifdef DWARF_DEBUGGING_INFO |
60 | #include "dwarfout.h" | |
61 | #endif | |
62 | ||
63 | #if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO) | |
64 | #include "dwarf2out.h" | |
65 | #endif | |
66 | ||
4f70758f | 67 | #if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO) |
76ead72b RL |
68 | #include "dbxout.h" |
69 | #endif | |
70 | ||
71 | #ifdef SDB_DEBUGGING_INFO | |
72 | #include "sdbout.h" | |
73 | #endif | |
74 | ||
f246a305 RS |
75 | #ifdef XCOFF_DEBUGGING_INFO |
76 | #include "xcoffout.h" | |
77 | #endif | |
4291d9c8 RS |
78 | \f |
79 | #ifdef VMS | |
80 | /* The extra parameters substantially improve the I/O performance. */ | |
81 | static FILE * | |
37c9f674 | 82 | vms_fopen (fname, type) |
4291d9c8 RS |
83 | char * fname; |
84 | char * type; | |
85 | { | |
37c9f674 RK |
86 | /* The <stdio.h> in the gcc-vms-1.42 distribution prototypes fopen with two |
87 | fixed arguments, which matches ANSI's specification but not VAXCRTL's | |
88 | pre-ANSI implementation. This hack circumvents the mismatch problem. */ | |
89 | FILE *(*vmslib_fopen)() = (FILE *(*)()) fopen; | |
90 | ||
91 | if (*type == 'w') | |
92 | return (*vmslib_fopen) (fname, type, "mbc=32", | |
93 | "deq=64", "fop=tef", "shr=nil"); | |
94 | else | |
95 | return (*vmslib_fopen) (fname, type, "mbc=32"); | |
4291d9c8 | 96 | } |
37c9f674 RK |
97 | #define fopen vms_fopen |
98 | #endif /* VMS */ | |
4291d9c8 RS |
99 | |
100 | #ifndef DEFAULT_GDB_EXTENSIONS | |
101 | #define DEFAULT_GDB_EXTENSIONS 1 | |
102 | #endif | |
103 | ||
30657ee3 RK |
104 | /* If more than one debugging type is supported, you must define |
105 | PREFERRED_DEBUGGING_TYPE to choose a format in a system-dependent way. | |
106 | ||
107 | This is one long line cause VAXC can't handle a \-newline. */ | |
9a666dda | 108 | #if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) + defined (DWARF_DEBUGGING_INFO) + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO)) |
30657ee3 RK |
109 | #ifndef PREFERRED_DEBUGGING_TYPE |
110 | You Lose! You must define PREFERRED_DEBUGGING_TYPE! | |
111 | #endif /* no PREFERRED_DEBUGGING_TYPE */ | |
112 | #else /* Only one debugging format supported. Define PREFERRED_DEBUGGING_TYPE | |
113 | so the following code needn't care. */ | |
114 | #ifdef DBX_DEBUGGING_INFO | |
115 | #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
116 | #endif | |
117 | #ifdef SDB_DEBUGGING_INFO | |
118 | #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG | |
119 | #endif | |
120 | #ifdef DWARF_DEBUGGING_INFO | |
121 | #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG | |
122 | #endif | |
9a666dda JM |
123 | #ifdef DWARF2_DEBUGGING_INFO |
124 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
125 | #endif | |
30657ee3 RK |
126 | #ifdef XCOFF_DEBUGGING_INFO |
127 | #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG | |
128 | #endif | |
129 | #endif /* More than one debugger format enabled. */ | |
130 | ||
131 | /* If still not defined, must have been because no debugging formats | |
132 | are supported. */ | |
133 | #ifndef PREFERRED_DEBUGGING_TYPE | |
134 | #define PREFERRED_DEBUGGING_TYPE NO_DEBUG | |
135 | #endif | |
136 | ||
2a611d21 ZW |
137 | #ifndef DIR_SEPARATOR |
138 | #define DIR_SEPARATOR '/' | |
139 | #endif | |
140 | ||
72c8bb7f | 141 | #if ! (defined (VMS) || defined (OS2)) |
4291d9c8 | 142 | extern char **environ; |
4d7e336b | 143 | #endif |
f425a887 | 144 | extern char *version_string; |
4291d9c8 | 145 | |
b0316e35 RS |
146 | /* Carry information from ASM_DECLARE_OBJECT_NAME |
147 | to ASM_FINISH_DECLARE_OBJECT. */ | |
148 | ||
149 | extern int size_directive_output; | |
5e10b3cc | 150 | extern tree last_assemble_variable_decl; |
b0316e35 | 151 | |
4291d9c8 RS |
152 | extern void init_decl_processing (); |
153 | extern void init_obstacks (); | |
154 | extern void init_tree_codes (); | |
34d0205f | 155 | extern void init_regs (); |
4291d9c8 RS |
156 | extern void init_optabs (); |
157 | extern void init_stmt (); | |
158 | extern void init_reg_sets (); | |
159 | extern void dump_flow_info (); | |
160 | extern void dump_sched_info (); | |
161 | extern void dump_local_alloc (); | |
9ddca353 | 162 | extern void regset_release_memory (); |
4291d9c8 | 163 | |
032713aa NC |
164 | extern void print_rtl (); |
165 | extern void print_rtl_with_bb (); | |
166 | ||
4291d9c8 | 167 | void rest_of_decl_compilation (); |
ab87f8c8 JL |
168 | void error_with_file_and_line PVPROTO((const char *file, |
169 | int line, const char *s, ...)); | |
170 | void error_with_decl PVPROTO((tree decl, const char *s, ...)); | |
171 | void error_for_asm PVPROTO((rtx insn, const char *s, ...)); | |
172 | void notice PVPROTO((const char *s, ...)); | |
173 | void error PVPROTO((const char *s, ...)); | |
174 | void fatal PVPROTO((const char *s, ...)); | |
175 | void warning_with_file_and_line PVPROTO((const char *file, | |
176 | int line, const char *s, ...)); | |
177 | void warning_with_decl PVPROTO((tree decl, const char *s, ...)); | |
178 | void warning PVPROTO((const char *s, ...)); | |
179 | void pedwarn PVPROTO((const char *s, ...)); | |
180 | void pedwarn_with_decl PVPROTO((tree decl, const char *s, ...)); | |
181 | void pedwarn_with_file_and_line PVPROTO((const char *file, | |
182 | int line, const char *s, ...)); | |
183 | void sorry PVPROTO((const char *s, ...)); | |
87e11268 | 184 | static void set_target_switch PROTO((const char *)); |
5f8ded66 | 185 | static const char *decl_name PROTO((tree, int)); |
87e11268 | 186 | static void vmessage PROTO((const char *, const char *, va_list)); |
ab87f8c8 JL |
187 | static void v_message_with_file_and_line PROTO((const char *, int, int, |
188 | const char *, va_list)); | |
189 | static void v_message_with_decl PROTO((tree, int, const char *, va_list)); | |
0e05e8ea | 190 | static void file_and_line_for_asm PROTO((rtx, char **, int *)); |
87e11268 KG |
191 | static void v_error_with_file_and_line PROTO((const char *, int, |
192 | const char *, va_list)); | |
193 | static void v_error_with_decl PROTO((tree, const char *, va_list)); | |
194 | static void v_error_for_asm PROTO((rtx, const char *, va_list)); | |
195 | static void verror PROTO((const char *, va_list)); | |
196 | static void vfatal PROTO((const char *, va_list)) ATTRIBUTE_NORETURN; | |
197 | static void v_warning_with_file_and_line PROTO ((const char *, int, | |
198 | const char *, va_list)); | |
199 | static void v_warning_with_decl PROTO((tree, const char *, va_list)); | |
200 | static void v_warning_for_asm PROTO((rtx, const char *, va_list)); | |
201 | static void vwarning PROTO((const char *, va_list)); | |
202 | static void vpedwarn PROTO((const char *, va_list)); | |
203 | static void v_pedwarn_with_decl PROTO((tree, const char *, va_list)); | |
204 | static void v_pedwarn_with_file_and_line PROTO((const char *, int, | |
205 | const char *, va_list)); | |
206 | static void vsorry PROTO((const char *, va_list)); | |
bf94d1ec KG |
207 | static void float_signal PROTO((int)) ATTRIBUTE_NORETURN; |
208 | static void pipe_closed PROTO((int)) ATTRIBUTE_NORETURN; | |
444bf316 | 209 | #ifdef ASM_IDENTIFY_LANGUAGE |
47c3ed98 KG |
210 | /* This might or might not be used in ASM_IDENTIFY_LANGUAGE. */ |
211 | static void output_lang_identify PROTO((FILE *)) ATTRIBUTE_UNUSED; | |
444bf316 | 212 | #endif |
87e11268 | 213 | static void open_dump_file PROTO((const char *, const char *)); |
0e05e8ea | 214 | static void close_dump_file PROTO((void (*) (FILE *, rtx), rtx)); |
87e11268 KG |
215 | static void dump_rtl PROTO((const char *, tree, void (*) (FILE *, rtx), rtx)); |
216 | static void clean_dump_file PROTO((const char *)); | |
0e05e8ea | 217 | static void compile_file PROTO((char *)); |
b8468bc7 | 218 | static void display_help PROTO ((void)); |
4291d9c8 | 219 | |
87e11268 KG |
220 | static void print_version PROTO((FILE *, const char *)); |
221 | static int print_single_switch PROTO((FILE *, int, int, const char *, | |
222 | const char *, const char *, | |
223 | const char *, const char *)); | |
224 | static void print_switch_values PROTO((FILE *, int, int, const char *, | |
225 | const char *, const char *)); | |
735a0e33 UD |
226 | |
227 | void print_rtl_graph_with_bb PROTO ((const char *, const char *, rtx)); | |
228 | void clean_graph_dump_file PROTO ((const char *, const char *)); | |
229 | void finish_graph_dump_file PROTO ((const char *, const char *)); | |
3d5cdd42 DE |
230 | /* Length of line when printing switch values. */ |
231 | #define MAX_LINE 75 | |
232 | ||
4291d9c8 RS |
233 | /* Name of program invoked, sans directories. */ |
234 | ||
235 | char *progname; | |
236 | ||
237 | /* Copy of arguments to main. */ | |
238 | int save_argc; | |
239 | char **save_argv; | |
240 | \f | |
241 | /* Name of current original source file (what was input to cpp). | |
242 | This comes from each #-command in the actual input. */ | |
243 | ||
244 | char *input_filename; | |
245 | ||
246 | /* Name of top-level original source file (what was input to cpp). | |
247 | This comes from the #-command at the beginning of the actual input. | |
248 | If there isn't any there, then this is the cc1 input file name. */ | |
249 | ||
250 | char *main_input_filename; | |
251 | ||
4291d9c8 RS |
252 | /* Current line number in real source file. */ |
253 | ||
254 | int lineno; | |
255 | ||
f1db3576 JL |
256 | /* Nonzero if it is unsafe to create any new pseudo registers. */ |
257 | int no_new_pseudos; | |
258 | ||
4291d9c8 RS |
259 | /* Stack of currently pending input files. */ |
260 | ||
261 | struct file_stack *input_file_stack; | |
262 | ||
263 | /* Incremented on each change to input_file_stack. */ | |
264 | int input_file_stack_tick; | |
265 | ||
4291d9c8 RS |
266 | /* Name to use as base of names for dump output files. */ |
267 | ||
87e11268 | 268 | const char *dump_base_name; |
4291d9c8 RS |
269 | |
270 | /* Bit flags that specify the machine subtype we are compiling for. | |
271 | Bits are tested using macros TARGET_... defined in the tm.h file | |
272 | and set by `-m...' switches. Must be defined in rtlanal.c. */ | |
273 | ||
274 | extern int target_flags; | |
275 | ||
276 | /* Flags saying which kinds of debugging dump have been requested. */ | |
277 | ||
278 | int rtl_dump = 0; | |
279 | int rtl_dump_and_exit = 0; | |
280 | int jump_opt_dump = 0; | |
e9a25f70 | 281 | int addressof_dump = 0; |
4291d9c8 | 282 | int cse_dump = 0; |
7506f491 | 283 | int gcse_dump = 0; |
4291d9c8 RS |
284 | int loop_dump = 0; |
285 | int cse2_dump = 0; | |
0d332add | 286 | int branch_prob_dump = 0; |
4291d9c8 RS |
287 | int flow_dump = 0; |
288 | int combine_dump = 0; | |
8c660648 | 289 | int regmove_dump = 0; |
4291d9c8 RS |
290 | int sched_dump = 0; |
291 | int local_reg_dump = 0; | |
292 | int global_reg_dump = 0; | |
e881bb1b | 293 | int flow2_dump = 0; |
ede7cd44 | 294 | int peephole2_dump = 0; |
4291d9c8 RS |
295 | int sched2_dump = 0; |
296 | int jump2_opt_dump = 0; | |
bd334356 | 297 | #ifdef DELAY_SLOTS |
4291d9c8 | 298 | int dbr_sched_dump = 0; |
bd334356 | 299 | #endif |
4291d9c8 | 300 | int flag_print_asm_name = 0; |
032713aa | 301 | #ifdef STACK_REGS |
4291d9c8 | 302 | int stack_reg_dump = 0; |
032713aa NC |
303 | #endif |
304 | #ifdef MACHINE_DEPENDENT_REORG | |
305 | int mach_dep_reorg_dump = 0; | |
306 | #endif | |
735a0e33 | 307 | enum graph_dump_types graph_dump_format; |
4291d9c8 RS |
308 | |
309 | /* Name for output file of assembly code, specified with -o. */ | |
310 | ||
311 | char *asm_file_name; | |
312 | ||
313 | /* Value of the -G xx switch, and whether it was passed or not. */ | |
314 | int g_switch_value; | |
315 | int g_switch_set; | |
316 | ||
317 | /* Type(s) of debugging information we are producing (if any). | |
318 | See flags.h for the definitions of the different possible | |
319 | types of debugging information. */ | |
320 | enum debug_info_type write_symbols = NO_DEBUG; | |
321 | ||
322 | /* Level of debugging information we are producing. See flags.h | |
323 | for the definitions of the different possible levels. */ | |
324 | enum debug_info_level debug_info_level = DINFO_LEVEL_NONE; | |
325 | ||
a53d0bcc RS |
326 | /* Nonzero means use GNU-only extensions in the generated symbolic |
327 | debugging information. */ | |
328 | /* Currently, this only has an effect when write_symbols is set to | |
329 | DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. */ | |
330 | int use_gnu_debug_info_extensions = 0; | |
4291d9c8 RS |
331 | |
332 | /* Nonzero means do optimizations. -O. | |
333 | Particular numeric values stand for particular amounts of optimization; | |
334 | thus, -O2 stores 2 here. However, the optimizations beyond the basic | |
335 | ones are not controlled directly by this variable. Instead, they are | |
336 | controlled by individual `flag_...' variables that are defaulted | |
337 | based on this variable. */ | |
338 | ||
339 | int optimize = 0; | |
340 | ||
c6aded7c AG |
341 | /* Nonzero means optimize for size. -Os. |
342 | The only valid values are zero and non-zero. When optimize_size is | |
343 | non-zero, optimize defaults to 2, but certain individual code | |
344 | bloating optimizations are disabled. */ | |
345 | ||
346 | int optimize_size = 0; | |
347 | ||
4291d9c8 RS |
348 | /* Number of error messages and warning messages so far. */ |
349 | ||
350 | int errorcount = 0; | |
351 | int warningcount = 0; | |
352 | int sorrycount = 0; | |
353 | ||
a1d7ffe3 JM |
354 | /* Pointer to function to compute the name to use to print a declaration. |
355 | DECL is the declaration in question. | |
356 | VERBOSITY determines what information will be printed: | |
357 | 0: DECL_NAME, demangled as necessary. | |
358 | 1: and scope information. | |
359 | 2: and any other information that might be interesting, such as function | |
360 | parameter types in C++. */ | |
4291d9c8 | 361 | |
5f8ded66 | 362 | const char *(*decl_printable_name) PROTO ((tree, int)); |
4291d9c8 RS |
363 | |
364 | /* Pointer to function to compute rtl for a language-specific tree code. */ | |
365 | ||
114791ea KG |
366 | typedef rtx (*lang_expand_expr_t) |
367 | PROTO ((union tree_node *, rtx, enum machine_mode, | |
368 | enum expand_modifier modifier)); | |
369 | ||
370 | lang_expand_expr_t lang_expand_expr = 0; | |
4291d9c8 | 371 | |
e697e20a MM |
372 | tree (*lang_expand_constant) PROTO((tree)) = 0; |
373 | ||
2b599527 RS |
374 | /* Pointer to function to finish handling an incomplete decl at the |
375 | end of compilation. */ | |
376 | ||
114791ea | 377 | void (*incomplete_decl_finalize_hook) PROTO((tree)) = 0; |
2b599527 | 378 | |
4291d9c8 RS |
379 | /* Nonzero if generating code to do profiling. */ |
380 | ||
381 | int profile_flag = 0; | |
382 | ||
383 | /* Nonzero if generating code to do profiling on a line-by-line basis. */ | |
384 | ||
385 | int profile_block_flag; | |
386 | ||
0d332add DE |
387 | /* Nonzero if generating code to profile program flow graph arcs. */ |
388 | ||
389 | int profile_arc_flag = 0; | |
390 | ||
391 | /* Nonzero if generating info for gcov to calculate line test coverage. */ | |
392 | ||
393 | int flag_test_coverage = 0; | |
394 | ||
395 | /* Nonzero indicates that branch taken probabilities should be calculated. */ | |
396 | ||
397 | int flag_branch_probabilities = 0; | |
398 | ||
4291d9c8 RS |
399 | /* Nonzero for -pedantic switch: warn about anything |
400 | that standard spec forbids. */ | |
401 | ||
402 | int pedantic = 0; | |
403 | ||
404 | /* Temporarily suppress certain warnings. | |
405 | This is set while reading code from a system header file. */ | |
406 | ||
407 | int in_system_header = 0; | |
408 | ||
409 | /* Nonzero means do stupid register allocation. | |
410 | Currently, this is 1 if `optimize' is 0. */ | |
411 | ||
412 | int obey_regdecls = 0; | |
413 | ||
414 | /* Don't print functions as they are compiled and don't print | |
415 | times taken by the various passes. -quiet. */ | |
416 | ||
417 | int quiet_flag = 0; | |
418 | \f | |
419 | /* -f flags. */ | |
420 | ||
421 | /* Nonzero means `char' should be signed. */ | |
422 | ||
423 | int flag_signed_char; | |
424 | ||
425 | /* Nonzero means give an enum type only as many bytes as it needs. */ | |
426 | ||
427 | int flag_short_enums; | |
428 | ||
429 | /* Nonzero for -fcaller-saves: allocate values in regs that need to | |
430 | be saved across function calls, if that produces overall better code. | |
431 | Optional now, so people can test it. */ | |
432 | ||
433 | #ifdef DEFAULT_CALLER_SAVES | |
434 | int flag_caller_saves = 1; | |
435 | #else | |
436 | int flag_caller_saves = 0; | |
437 | #endif | |
438 | ||
958ec8ca JW |
439 | /* Nonzero if structures and unions should be returned in memory. |
440 | ||
441 | This should only be defined if compatibility with another compiler or | |
442 | with an ABI is needed, because it results in slower code. */ | |
443 | ||
444 | #ifndef DEFAULT_PCC_STRUCT_RETURN | |
445 | #define DEFAULT_PCC_STRUCT_RETURN 1 | |
446 | #endif | |
447 | ||
4291d9c8 RS |
448 | /* Nonzero for -fpcc-struct-return: return values the same way PCC does. */ |
449 | ||
958ec8ca | 450 | int flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN; |
4291d9c8 RS |
451 | |
452 | /* Nonzero for -fforce-mem: load memory value into a register | |
453 | before arithmetic on it. This makes better cse but slower compilation. */ | |
454 | ||
455 | int flag_force_mem = 0; | |
456 | ||
457 | /* Nonzero for -fforce-addr: load memory address into a register before | |
458 | reference to memory. This makes better cse but slower compilation. */ | |
459 | ||
460 | int flag_force_addr = 0; | |
461 | ||
462 | /* Nonzero for -fdefer-pop: don't pop args after each function call; | |
463 | instead save them up to pop many calls' args with one insns. */ | |
464 | ||
6731a3e3 | 465 | int flag_defer_pop = 0; |
4291d9c8 RS |
466 | |
467 | /* Nonzero for -ffloat-store: don't allocate floats and doubles | |
468 | in extended-precision registers. */ | |
469 | ||
470 | int flag_float_store = 0; | |
471 | ||
472 | /* Nonzero for -fcse-follow-jumps: | |
473 | have cse follow jumps to do a more extensive job. */ | |
474 | ||
475 | int flag_cse_follow_jumps; | |
476 | ||
8b3686ed RK |
477 | /* Nonzero for -fcse-skip-blocks: |
478 | have cse follow a branch around a block. */ | |
479 | int flag_cse_skip_blocks; | |
480 | ||
4291d9c8 RS |
481 | /* Nonzero for -fexpensive-optimizations: |
482 | perform miscellaneous relatively-expensive optimizations. */ | |
483 | int flag_expensive_optimizations; | |
484 | ||
485 | /* Nonzero for -fthread-jumps: | |
486 | have jump optimize output of loop. */ | |
487 | ||
488 | int flag_thread_jumps; | |
489 | ||
490 | /* Nonzero enables strength-reduction in loop.c. */ | |
491 | ||
492 | int flag_strength_reduce = 0; | |
493 | ||
494 | /* Nonzero enables loop unrolling in unroll.c. Only loops for which the | |
495 | number of iterations can be calculated at compile-time (UNROLL_COMPLETELY, | |
496 | UNROLL_MODULO) or at run-time (preconditioned to be UNROLL_MODULO) are | |
497 | unrolled. */ | |
498 | ||
499 | int flag_unroll_loops; | |
500 | ||
501 | /* Nonzero enables loop unrolling in unroll.c. All loops are unrolled. | |
502 | This is generally not a win. */ | |
503 | ||
504 | int flag_unroll_all_loops; | |
505 | ||
e5eb27e5 JL |
506 | /* Nonzero forces all invariant computations in loops to be moved |
507 | outside the loop. */ | |
508 | ||
509 | int flag_move_all_movables = 0; | |
510 | ||
511 | /* Nonzero forces all general induction variables in loops to be | |
512 | strength reduced. */ | |
513 | ||
514 | int flag_reduce_all_givs = 0; | |
515 | ||
9ec36da5 JL |
516 | /* Nonzero to perform full register move optimization passes. This is the |
517 | default for -O2. */ | |
518 | ||
519 | int flag_regmove = 0; | |
520 | ||
4291d9c8 RS |
521 | /* Nonzero for -fwritable-strings: |
522 | store string constants in data segment and don't uniquize them. */ | |
523 | ||
524 | int flag_writable_strings = 0; | |
525 | ||
526 | /* Nonzero means don't put addresses of constant functions in registers. | |
527 | Used for compiling the Unix kernel, where strange substitutions are | |
528 | done on the assembly output. */ | |
529 | ||
530 | int flag_no_function_cse = 0; | |
531 | ||
532 | /* Nonzero for -fomit-frame-pointer: | |
533 | don't make a frame pointer in simple functions that don't require one. */ | |
534 | ||
535 | int flag_omit_frame_pointer = 0; | |
536 | ||
cf440348 JL |
537 | /* Nonzero means place each function into its own section on those platforms |
538 | which support arbitrary section names and unlimited numbers of sections. */ | |
539 | ||
540 | int flag_function_sections = 0; | |
541 | ||
fd868572 CM |
542 | /* ... and similar for data. */ |
543 | ||
544 | int flag_data_sections = 0; | |
545 | ||
4291d9c8 RS |
546 | /* Nonzero to inhibit use of define_optimization peephole opts. */ |
547 | ||
548 | int flag_no_peephole = 0; | |
549 | ||
43855b28 JL |
550 | /* Nonzero allows GCC to violate some IEEE or ANSI rules regarding math |
551 | operations in the interest of optimization. For example it allows | |
552 | GCC to assume arguments to sqrt are nonnegative numbers, allowing | |
0f41302f | 553 | faster code for sqrt to be generated. */ |
43855b28 JL |
554 | |
555 | int flag_fast_math = 0; | |
556 | ||
41af162c CB |
557 | /* Nonzero means the front end generally wants `errno' maintained by math |
558 | operations, like built-in SQRT, unless overridden by flag_fast_math. */ | |
559 | ||
560 | int flag_errno_math = 1; | |
561 | ||
c64f913e CB |
562 | /* 0 means straightforward implementation of complex divide acceptable. |
563 | 1 means wide ranges of inputs must work for complex divide. | |
564 | 2 means C9X-like requirements for complex divide (not yet implemented). */ | |
565 | ||
566 | int flag_complex_divide_method = 0; | |
567 | ||
4291d9c8 RS |
568 | /* Nonzero means all references through pointers are volatile. */ |
569 | ||
570 | int flag_volatile; | |
c6e75897 | 571 | |
ab87f8c8 | 572 | /* Nonzero means treat all global and extern variables as volatile. */ |
c6e75897 | 573 | |
38d4d0c2 | 574 | int flag_volatile_global; |
4291d9c8 | 575 | |
ab87f8c8 JL |
576 | /* Nonzero means treat all static variables as volatile. */ |
577 | ||
578 | int flag_volatile_static; | |
579 | ||
4291d9c8 RS |
580 | /* Nonzero means just do syntax checking; don't output anything. */ |
581 | ||
582 | int flag_syntax_only = 0; | |
583 | ||
7506f491 DE |
584 | /* Nonzero means perform global cse. */ |
585 | ||
586 | static int flag_gcse; | |
587 | ||
4291d9c8 RS |
588 | /* Nonzero means to rerun cse after loop optimization. This increases |
589 | compilation time about 20% and picks up a few more common expressions. */ | |
590 | ||
591 | static int flag_rerun_cse_after_loop; | |
592 | ||
6d6d0fa0 JL |
593 | /* Nonzero means to run loop optimizations twice. */ |
594 | ||
64fde701 | 595 | int flag_rerun_loop_opt; |
6d6d0fa0 | 596 | |
4291d9c8 RS |
597 | /* Nonzero for -finline-functions: ok to inline functions that look like |
598 | good inline candidates. */ | |
599 | ||
600 | int flag_inline_functions; | |
601 | ||
602 | /* Nonzero for -fkeep-inline-functions: even if we make a function | |
ac2a9454 | 603 | go inline everywhere, keep its definition around for debugging |
4291d9c8 RS |
604 | purposes. */ |
605 | ||
606 | int flag_keep_inline_functions; | |
607 | ||
fadb3bc9 | 608 | /* Nonzero means that functions will not be inlined. */ |
4291d9c8 RS |
609 | |
610 | int flag_no_inline; | |
611 | ||
fbe912dd BK |
612 | /* Nonzero means that we should emit static const variables |
613 | regardless of whether or not optimization is turned on. */ | |
614 | ||
615 | int flag_keep_static_consts = 1; | |
616 | ||
4291d9c8 RS |
617 | /* Nonzero means we should be saving declaration info into a .X file. */ |
618 | ||
619 | int flag_gen_aux_info = 0; | |
620 | ||
f246a305 RS |
621 | /* Specified name of aux-info file. */ |
622 | ||
623 | static char *aux_info_file_name; | |
624 | ||
4291d9c8 RS |
625 | /* Nonzero means make the text shared if supported. */ |
626 | ||
627 | int flag_shared_data; | |
628 | ||
629 | /* Nonzero means schedule into delayed branch slots if supported. */ | |
630 | ||
631 | int flag_delayed_branch; | |
632 | ||
633 | /* Nonzero if we are compiling pure (sharable) code. | |
634 | Value is 1 if we are doing reasonable (i.e. simple | |
635 | offset into offset table) pic. Value is 2 if we can | |
636 | only perform register offsets. */ | |
637 | ||
638 | int flag_pic; | |
639 | ||
3d195391 MS |
640 | /* Nonzero means generate extra code for exception handling and enable |
641 | exception handling. */ | |
642 | ||
b53beeb2 | 643 | int flag_exceptions; |
3d195391 | 644 | |
a1622f83 AM |
645 | /* Nonzero means use the new model for exception handling. Replaces |
646 | -DNEW_EH_MODEL as a compile option. */ | |
647 | ||
6e487a49 | 648 | int flag_new_exceptions = 1; |
a1622f83 | 649 | |
2786cbad | 650 | /* Nonzero means don't place uninitialized global data in common storage |
3d195391 | 651 | by default. */ |
4291d9c8 RS |
652 | |
653 | int flag_no_common; | |
654 | ||
655 | /* Nonzero means pretend it is OK to examine bits of target floats, | |
656 | even if that isn't true. The resulting code will have incorrect constants, | |
657 | but the same series of instructions that the native compiler would make. */ | |
658 | ||
659 | int flag_pretend_float; | |
660 | ||
661 | /* Nonzero means change certain warnings into errors. | |
662 | Usually these are warnings about failure to conform to some standard. */ | |
663 | ||
664 | int flag_pedantic_errors = 0; | |
665 | ||
666 | /* flag_schedule_insns means schedule insns within basic blocks (before | |
667 | local_alloc). | |
668 | flag_schedule_insns_after_reload means schedule insns after | |
669 | global_alloc. */ | |
670 | ||
671 | int flag_schedule_insns = 0; | |
672 | int flag_schedule_insns_after_reload = 0; | |
673 | ||
8c660648 JL |
674 | /* The following flags have effect only for scheduling before register |
675 | allocation: | |
676 | ||
677 | flag_schedule_interblock means schedule insns accross basic blocks. | |
678 | flag_schedule_speculative means allow speculative motion of non-load insns. | |
679 | flag_schedule_speculative_load means allow speculative motion of some | |
680 | load insns. | |
681 | flag_schedule_speculative_load_dangerous allows speculative motion of more | |
8e7336f8 | 682 | load insns. */ |
8c660648 JL |
683 | |
684 | int flag_schedule_interblock = 1; | |
685 | int flag_schedule_speculative = 1; | |
686 | int flag_schedule_speculative_load = 0; | |
687 | int flag_schedule_speculative_load_dangerous = 0; | |
8c660648 JL |
688 | |
689 | /* flag_on_branch_count_reg means try to replace add-1,compare,branch tupple | |
690 | by a cheaper branch, on a count register. */ | |
691 | int flag_branch_on_count_reg; | |
8c660648 | 692 | |
4291d9c8 RS |
693 | /* -finhibit-size-directive inhibits output of .size for ELF. |
694 | This is used only for compiling crtstuff.c, | |
695 | and it may be extended to other effects | |
696 | needed for crtstuff.c on other systems. */ | |
697 | int flag_inhibit_size_directive = 0; | |
698 | ||
9a631e8e RS |
699 | /* -fverbose-asm causes extra commentary information to be produced in |
700 | the generated assembly code (to make it more readable). This option | |
701 | is generally only of use to those who actually need to read the | |
3d5cdd42 | 702 | generated assembly code (perhaps while debugging the compiler itself). |
c85f7c16 | 703 | -fno-verbose-asm, the default, causes the extra information |
3d5cdd42 DE |
704 | to be omitted and is useful when comparing two assembler files. */ |
705 | ||
c85f7c16 | 706 | int flag_verbose_asm = 0; |
9a631e8e | 707 | |
3d5cdd42 DE |
708 | /* -dA causes debug commentary information to be produced in |
709 | the generated assembly code (to make it more readable). This option | |
710 | is generally only of use to those who actually need to read the | |
711 | generated assembly code (perhaps while debugging the compiler itself). | |
712 | Currently, this switch is only used by dwarfout.c; however, it is intended | |
713 | to be a catchall for printing debug information in the assembler file. */ | |
714 | ||
715 | int flag_debug_asm = 0; | |
9a631e8e | 716 | |
4291d9c8 | 717 | /* -fgnu-linker specifies use of the GNU linker for initializations. |
d68c507d RS |
718 | (Or, more generally, a linker that handles initializations.) |
719 | -fno-gnu-linker says that collect2 will be used. */ | |
720 | #ifdef USE_COLLECT2 | |
721 | int flag_gnu_linker = 0; | |
722 | #else | |
4291d9c8 | 723 | int flag_gnu_linker = 1; |
d68c507d | 724 | #endif |
4291d9c8 | 725 | |
566cdc73 MM |
726 | /* Tag all structures with __attribute__(packed) */ |
727 | int flag_pack_struct = 0; | |
728 | ||
bd83d0ac RK |
729 | /* Emit code to check for stack overflow; also may cause large objects |
730 | to be allocated dynamically. */ | |
731 | int flag_stack_check; | |
732 | ||
f602c208 RK |
733 | /* -fcheck-memory-usage causes extra code to be generated in order to check |
734 | memory accesses. This is used by a detector of bad memory accesses such | |
735 | as Checker. */ | |
736 | int flag_check_memory_usage = 0; | |
737 | ||
738 | /* -fprefix-function-name causes function name to be prefixed. This | |
739 | can be used with -fcheck-memory-usage to isolate code compiled with | |
740 | -fcheck-memory-usage. */ | |
741 | int flag_prefix_function_name = 0; | |
742 | ||
9ae8ffe7 JL |
743 | /* 0 if pointer arguments may alias each other. True in C. |
744 | 1 if pointer arguments may not alias each other but may alias | |
745 | global variables. | |
746 | 2 if pointer arguments may not alias each other and may not | |
747 | alias global variables. True in Fortran. | |
748 | This defaults to 0 for C. */ | |
749 | int flag_argument_noalias = 0; | |
750 | ||
41472af8 MM |
751 | /* Nonzero if we should do (language-dependent) alias analysis. |
752 | Typically, this analysis will assume that expressions of certain | |
753 | types do not alias expressions of certain other types. Only used | |
754 | if alias analysis (in general) is enabled. */ | |
755 | int flag_strict_aliasing = 0; | |
756 | ||
07417085 KR |
757 | /* Instrument functions with calls at entry and exit, for profiling. */ |
758 | int flag_instrument_function_entry_exit = 0; | |
759 | ||
be163a70 ZW |
760 | /* Nonzero means ignore `#ident' directives. 0 means handle them. |
761 | On SVR4 targets, it also controls whether or not to emit a | |
762 | string identifying the compiler. */ | |
763 | ||
764 | int flag_no_ident = 0; | |
b8468bc7 | 765 | |
ede7cd44 RH |
766 | /* This will perform a peephole pass before sched2. */ |
767 | int flag_peephole2 = 0; | |
768 | ||
efa3896a GK |
769 | /* Values of the -falign-* flags: how much to align labels in code. |
770 | 0 means `use default', 1 means `don't align'. | |
771 | For each variable, there is an _log variant which is the power | |
772 | of two not less than the variable, for .align output. */ | |
773 | ||
774 | int align_loops; | |
775 | int align_loops_log; | |
776 | int align_jumps; | |
777 | int align_jumps_log; | |
778 | int align_labels; | |
779 | int align_labels_log; | |
780 | int align_functions; | |
781 | int align_functions_log; | |
782 | ||
b8468bc7 NC |
783 | /* Table of supported debugging formats. */ |
784 | static struct | |
785 | { | |
87e11268 | 786 | const char * arg; |
b8468bc7 NC |
787 | /* Since PREFERRED_DEBUGGING_TYPE isn't necessarily a |
788 | constant expression, we use NO_DEBUG in its place. */ | |
789 | enum debug_info_type debug_type; | |
790 | int use_extensions_p; | |
87e11268 | 791 | const char * description; |
b8468bc7 NC |
792 | } *da, |
793 | debug_args[] = | |
794 | { | |
795 | { "g", NO_DEBUG, DEFAULT_GDB_EXTENSIONS, | |
796 | "Generate default debug format output" }, | |
797 | { "ggdb", NO_DEBUG, 1, "Generate default extended debug format output" }, | |
798 | #ifdef DBX_DEBUGGING_INFO | |
799 | { "gstabs", DBX_DEBUG, 0, "Generate STABS format debug output" }, | |
800 | { "gstabs+", DBX_DEBUG, 1, "Generate extended STABS format debug output" }, | |
801 | #endif | |
802 | #ifdef DWARF_DEBUGGING_INFO | |
803 | { "gdwarf", DWARF_DEBUG, 0, "Generate DWARF-1 format debug output"}, | |
804 | { "gdwarf+", DWARF_DEBUG, 1, | |
805 | "Generated extended DWARF-1 format debug output" }, | |
806 | #endif | |
807 | #ifdef DWARF2_DEBUGGING_INFO | |
808 | { "gdwarf-2", DWARF2_DEBUG, 0, "Enable DWARF-2 debug output" }, | |
809 | #endif | |
810 | #ifdef XCOFF_DEBUGGING_INFO | |
811 | { "gxcoff", XCOFF_DEBUG, 0, "Generate XCOFF format debug output" }, | |
812 | { "gxcoff+", XCOFF_DEBUG, 1, "Generate extended XCOFF format debug output" }, | |
813 | #endif | |
814 | #ifdef SDB_DEBUGGING_INFO | |
815 | { "gcoff", SDB_DEBUG, 0, "Generate COFF format debug output" }, | |
816 | #endif | |
c84e2712 | 817 | { 0, 0, 0, 0 } |
b8468bc7 NC |
818 | }; |
819 | ||
820 | typedef struct | |
821 | { | |
87e11268 | 822 | const char * string; |
b8468bc7 NC |
823 | int * variable; |
824 | int on_value; | |
87e11268 | 825 | const char * description; |
b8468bc7 NC |
826 | } |
827 | lang_independent_options; | |
828 | ||
19283265 RH |
829 | /* Add or remove a leading underscore from user symbols. */ |
830 | int flag_leading_underscore = -1; | |
831 | ||
832 | /* The user symbol prefix after having resolved same. */ | |
87e11268 | 833 | const char *user_label_prefix; |
19283265 RH |
834 | |
835 | /* A default for same. */ | |
836 | #ifndef USER_LABEL_PREFIX | |
837 | #define USER_LABEL_PREFIX "" | |
838 | #endif | |
839 | ||
4291d9c8 RS |
840 | /* Table of language-independent -f options. |
841 | STRING is the option name. VARIABLE is the address of the variable. | |
842 | ON_VALUE is the value to store in VARIABLE | |
843 | if `-fSTRING' is seen as an option. | |
844 | (If `-fno-STRING' is seen as an option, the opposite value is stored.) */ | |
845 | ||
b8468bc7 | 846 | lang_independent_options f_options[] = |
4291d9c8 | 847 | { |
b8468bc7 NC |
848 | {"float-store", &flag_float_store, 1, |
849 | "Do not store floats in registers" }, | |
850 | {"volatile", &flag_volatile, 1, | |
851 | "Consider all mem refs through pointers as volatile"}, | |
852 | {"volatile-global", &flag_volatile_global, 1, | |
853 | "Consider all mem refs to global data to be volatile" }, | |
ab87f8c8 JL |
854 | {"volatile-static", &flag_volatile_static, 1, |
855 | "Consider all mem refs to static data to be volatile" }, | |
b8468bc7 NC |
856 | {"defer-pop", &flag_defer_pop, 1, |
857 | "Defer popping functions args from stack until later" }, | |
858 | {"omit-frame-pointer", &flag_omit_frame_pointer, 1, | |
859 | "When possible do not generate stack frames"}, | |
860 | {"cse-follow-jumps", &flag_cse_follow_jumps, 1, | |
861 | "When running CSE, follow jumps to their targets" }, | |
862 | {"cse-skip-blocks", &flag_cse_skip_blocks, 1, | |
863 | "When running CSE, follow conditional jumps" }, | |
864 | {"expensive-optimizations", &flag_expensive_optimizations, 1, | |
865 | "Perform a number of minor, expensive optimisations" }, | |
866 | {"thread-jumps", &flag_thread_jumps, 1, | |
867 | "Perform jump threading optimisations"}, | |
868 | {"strength-reduce", &flag_strength_reduce, 1, | |
869 | "Perform strength reduction optimisations" }, | |
870 | {"unroll-loops", &flag_unroll_loops, 1, | |
62e7b719 | 871 | "Perform loop unrolling when iteration count is known" }, |
b8468bc7 | 872 | {"unroll-all-loops", &flag_unroll_all_loops, 1, |
f1da1729 | 873 | "Perform loop unrolling for all loops" }, |
b8468bc7 NC |
874 | {"move-all-movables", &flag_move_all_movables, 1, |
875 | "Force all loop invariant computations out of loops" }, | |
876 | {"reduce-all-givs", &flag_reduce_all_givs, 1, | |
877 | "Strength reduce all loop general induction variables" }, | |
878 | {"writable-strings", &flag_writable_strings, 1, | |
879 | "Store strings in writable data section" }, | |
880 | {"peephole", &flag_no_peephole, 0, | |
881 | "Enable machine specific peephole optimisations" }, | |
882 | {"force-mem", &flag_force_mem, 1, | |
883 | "Copy memory operands into registers before using" }, | |
884 | {"force-addr", &flag_force_addr, 1, | |
885 | "Copy memory address constants into regs before using" }, | |
886 | {"function-cse", &flag_no_function_cse, 0, | |
887 | "Allow function addresses to be held in registers" }, | |
888 | {"inline-functions", &flag_inline_functions, 1, | |
889 | "Integrate simple functions into their callers" }, | |
890 | {"keep-inline-functions", &flag_keep_inline_functions, 1, | |
891 | "Generate code for funcs even if they are fully inlined" }, | |
892 | {"inline", &flag_no_inline, 0, | |
893 | "Pay attention to the 'inline' keyword"}, | |
894 | {"keep-static-consts", &flag_keep_static_consts, 1, | |
895 | "Emit static const variables even if they are not used" }, | |
896 | {"syntax-only", &flag_syntax_only, 1, | |
897 | "Check for syntax errors, then stop" }, | |
898 | {"shared-data", &flag_shared_data, 1, | |
899 | "Mark data as shared rather than private" }, | |
900 | {"caller-saves", &flag_caller_saves, 1, | |
901 | "Enable saving registers around function calls" }, | |
902 | {"pcc-struct-return", &flag_pcc_struct_return, 1, | |
903 | "Return 'short' aggregates in memory, not registers" }, | |
904 | {"reg-struct-return", &flag_pcc_struct_return, 0, | |
905 | "Return 'short' aggregates in registers" }, | |
906 | {"delayed-branch", &flag_delayed_branch, 1, | |
907 | "Attempt to fill delay slots of branch instructions" }, | |
908 | {"gcse", &flag_gcse, 1, | |
909 | "Perform the global common subexpression elimination" }, | |
910 | {"rerun-cse-after-loop", &flag_rerun_cse_after_loop, 1, | |
911 | "Run CSE pass after loop optimisations"}, | |
912 | {"rerun-loop-opt", &flag_rerun_loop_opt, 1, | |
913 | "Run the loop optimiser twice"}, | |
914 | {"pretend-float", &flag_pretend_float, 1, | |
915 | "Pretend that host and target use the same FP format"}, | |
916 | {"schedule-insns", &flag_schedule_insns, 1, | |
917 | "Reschedule instructions to avoid pipeline stalls"}, | |
918 | {"schedule-insns2", &flag_schedule_insns_after_reload, 1, | |
919 | "Run two passes of the instruction scheduler"}, | |
b8468bc7 NC |
920 | {"sched-interblock",&flag_schedule_interblock, 1, |
921 | "Enable scheduling across basic blocks" }, | |
922 | {"sched-spec",&flag_schedule_speculative, 1, | |
923 | "Allow speculative motion of non-loads" }, | |
924 | {"sched-spec-load",&flag_schedule_speculative_load, 1, | |
925 | "Allow speculative motion of some loads" }, | |
926 | {"sched-spec-load-dangerous",&flag_schedule_speculative_load_dangerous, 1, | |
927 | "Allow speculative motion of more loads" }, | |
928 | {"branch-count-reg",&flag_branch_on_count_reg, 1, | |
40f943dd | 929 | "Replace add,compare,branch with branch on count reg"}, |
b8468bc7 NC |
930 | {"pic", &flag_pic, 1, |
931 | "Generate position independent code, if possible"}, | |
932 | {"PIC", &flag_pic, 2, ""}, | |
933 | {"exceptions", &flag_exceptions, 1, | |
934 | "Enable exception handling" }, | |
935 | {"new-exceptions", &flag_new_exceptions, 1, | |
936 | "Use the new model for exception handling" }, | |
937 | {"sjlj-exceptions", &exceptions_via_longjmp, 1, | |
938 | "Use setjmp/longjmp to handle exceptions" }, | |
939 | {"asynchronous-exceptions", &asynchronous_exceptions, 1, | |
940 | "Support asynchronous exceptions" }, | |
941 | {"profile-arcs", &profile_arc_flag, 1, | |
942 | "Insert arc based program profiling code" }, | |
943 | {"test-coverage", &flag_test_coverage, 1, | |
944 | "Create data files needed by gcov" }, | |
945 | {"branch-probabilities", &flag_branch_probabilities, 1, | |
62e7b719 | 946 | "Use profiling information for branch probabilities" }, |
b8468bc7 NC |
947 | {"fast-math", &flag_fast_math, 1, |
948 | "Improve FP speed by violating ANSI & IEEE rules" }, | |
949 | {"common", &flag_no_common, 0, | |
950 | "Do not put unitialised globals in the common section" }, | |
951 | {"inhibit-size-directive", &flag_inhibit_size_directive, 1, | |
952 | "Do not generate .size directives" }, | |
953 | {"function-sections", &flag_function_sections, 1, | |
954 | "place each function into its own section" }, | |
257441db CM |
955 | {"data-sections", &flag_data_sections, 1, |
956 | "place data items into their own section" }, | |
b8468bc7 NC |
957 | {"verbose-asm", &flag_verbose_asm, 1, |
958 | "Add extra commentry to assembler output"}, | |
959 | {"gnu-linker", &flag_gnu_linker, 1, | |
960 | "Output GNU ld formatted global initialisers"}, | |
961 | {"regmove", &flag_regmove, 1, | |
c84e2712 KG |
962 | "Enables a register move optimisation"}, |
963 | {"optimize-register-move", &flag_regmove, 1, | |
964 | "Do the full regmove optimization pass"}, | |
b8468bc7 NC |
965 | {"pack-struct", &flag_pack_struct, 1, |
966 | "Pack structure members together without holes" }, | |
967 | {"stack-check", &flag_stack_check, 1, | |
968 | "Insert stack checking code into the program" }, | |
969 | {"argument-alias", &flag_argument_noalias, 0, | |
970 | "Specify that arguments may alias each other & globals"}, | |
971 | {"argument-noalias", &flag_argument_noalias, 1, | |
972 | "Assume arguments may alias globals but not each other"}, | |
973 | {"argument-noalias-global", &flag_argument_noalias, 2, | |
974 | "Assume arguments do not alias each other or globals" }, | |
975 | {"strict-aliasing", &flag_strict_aliasing, 1, | |
976 | "Assume strict aliasing rules apply" }, | |
efa3896a GK |
977 | {"align-loops", &align_loops, 0, |
978 | "Align the start of loops" }, | |
979 | {"align-jumps", &align_jumps, 0, | |
980 | "Align labels which are only reached by jumping" }, | |
981 | {"align-labels", &align_labels, 0, | |
982 | "Align all labels" }, | |
983 | {"align-functions", &align_functions, 0, | |
984 | "Align the start of functions" }, | |
b8468bc7 NC |
985 | {"check-memory-usage", &flag_check_memory_usage, 1, |
986 | "Generate code to check every memory access" }, | |
987 | {"prefix-function-name", &flag_prefix_function_name, 1, | |
988 | "Add a prefix to all function names" }, | |
c84e2712 KG |
989 | {"dump-unnumbered", &flag_dump_unnumbered, 1, |
990 | "Suppress output of instruction numbers and line number notes in debugging dumps"}, | |
07417085 KR |
991 | {"instrument-functions", &flag_instrument_function_entry_exit, 1, |
992 | "Instrument function entry/exit with profiling calls"}, | |
19283265 | 993 | {"leading-underscore", &flag_leading_underscore, 1, |
be163a70 ZW |
994 | "External symbols have a leading underscore" }, |
995 | {"ident", &flag_no_ident, 0, | |
ede7cd44 RH |
996 | "Process #ident directives"}, |
997 | { "peephole2", &flag_peephole2, 1, | |
998 | "Enables an rtl peephole pass run before sched2" } | |
4291d9c8 | 999 | }; |
b99933c7 | 1000 | |
b8468bc7 NC |
1001 | #define NUM_ELEM(a) (sizeof (a) / sizeof ((a)[0])) |
1002 | ||
b99933c7 RS |
1003 | /* Table of language-specific options. */ |
1004 | ||
b8468bc7 NC |
1005 | static struct lang_opt |
1006 | { | |
87e11268 KG |
1007 | const char * option; |
1008 | const char * description; | |
b8468bc7 NC |
1009 | } |
1010 | documented_lang_options[] = | |
b99933c7 | 1011 | { |
b8468bc7 NC |
1012 | /* In order not to overload the --help output, the convention |
1013 | used here is to only describe those options which are not | |
1014 | enabled by default. */ | |
1015 | ||
1016 | { "-ansi", "Compile just for ANSI C" }, | |
1017 | { "-fallow-single-precision", | |
1018 | "Do not promote floats to double if using -traditional" }, | |
6f4d7222 | 1019 | { "-std= ", "Determine language standard"}, |
b8468bc7 NC |
1020 | |
1021 | { "-fsigned-bitfields", "" }, | |
1022 | { "-funsigned-bitfields","Make bitfields by unsigned by default" }, | |
1023 | { "-fno-signed-bitfields", "" }, | |
1024 | { "-fno-unsigned-bitfields","" }, | |
1025 | { "-fsigned-char", "Make 'char' be signed by default"}, | |
1026 | { "-funsigned-char", "Make 'char' be unsigned by default"}, | |
1027 | { "-fno-signed-char", "" }, | |
1028 | { "-fno-unsigned-char", "" }, | |
1029 | ||
1030 | { "-ftraditional", "" }, | |
1031 | { "-traditional", "Attempt to support traditional K&R style C"}, | |
1032 | { "-fnotraditional", "" }, | |
1033 | { "-fno-traditional", "" }, | |
1034 | ||
1035 | { "-fasm", "" }, | |
1036 | { "-fno-asm", "Do not recognise the 'asm' keyword" }, | |
1037 | { "-fbuiltin", "" }, | |
1038 | { "-fno-builtin", "Do not recognise any built in functions" }, | |
1039 | { "-fhosted", "Assume normal C execution environment" }, | |
1040 | { "-fno-hosted", "" }, | |
1041 | { "-ffreestanding", | |
1042 | "Assume that standard libraries & main might not exist" }, | |
1043 | { "-fno-freestanding", "" }, | |
1044 | { "-fcond-mismatch", "Allow different types as args of ? operator"}, | |
1045 | { "-fno-cond-mismatch", "" }, | |
62e7b719 | 1046 | { "-fdollars-in-identifiers", "Allow the use of $ inside identifiers" }, |
b8468bc7 | 1047 | { "-fno-dollars-in-identifiers", "" }, |
3773a46b JM |
1048 | { "-fpreprocessed", "" }, |
1049 | { "-fno-preprocessed", "" }, | |
b8468bc7 NC |
1050 | { "-fshort-double", "Use the same size for double as for float" }, |
1051 | { "-fno-short-double", "" }, | |
1052 | { "-fshort-enums", "Use the smallest fitting integer to hold enums"}, | |
1053 | { "-fno-short-enums", "" }, | |
1054 | ||
1055 | { "-Wall", "Enable most warning messages" }, | |
1056 | { "-Wbad-function-cast", | |
1057 | "Warn about casting functions to incompatible types" }, | |
1058 | { "-Wno-bad-function-cast", "" }, | |
0ca3fb0a KG |
1059 | { "-Wmissing-noreturn", |
1060 | "Warn about functions which might be candidates for attribute noreturn" }, | |
1061 | { "-Wno-missing-noreturn", "" }, | |
b8468bc7 NC |
1062 | { "-Wcast-qual", "Warn about casts which discard qualifiers"}, |
1063 | { "-Wno-cast-qual", "" }, | |
630962bf | 1064 | { "-Wchar-subscripts", "Warn about subscripts whose type is 'char'"}, |
b8468bc7 NC |
1065 | { "-Wno-char-subscripts", "" }, |
1066 | { "-Wcomment", "Warn if nested comments are detected" }, | |
c84e2712 KG |
1067 | { "-Wno-comment", "" }, |
1068 | { "-Wcomments", "Warn if nested comments are detected" }, | |
1069 | { "-Wno-comments", "" }, | |
b8468bc7 NC |
1070 | { "-Wconversion", "Warn about possibly confusing type conversions" }, |
1071 | { "-Wno-conversion", "" }, | |
1072 | { "-Wformat", "Warn about printf format anomalies" }, | |
1073 | { "-Wno-format", "" }, | |
1074 | { "-Wimplicit-function-declaration", | |
1075 | "Warn about implicit function declarations" }, | |
1076 | { "-Wno-implicit-function-declaration", "" }, | |
1077 | { "-Werror-implicit-function-declaration", "" }, | |
1078 | { "-Wimplicit-int", "Warn when a declaration does not specify a type" }, | |
1079 | { "-Wno-implicit-int", "" }, | |
1080 | { "-Wimplicit", "" }, | |
1081 | { "-Wno-implicit", "" }, | |
1082 | { "-Wimport", "Warn about the use of the #import directive" }, | |
1083 | { "-Wno-import", "" }, | |
1084 | { "-Wlong-long","" }, | |
1085 | { "-Wno-long-long", "Do not warn about using 'long long' when -pedantic" }, | |
1086 | { "-Wmain", "Warn about suspicious declarations of main" }, | |
1087 | { "-Wno-main", "" }, | |
1088 | { "-Wmissing-braces", | |
1089 | "Warn about possibly missing braces around initialisers" }, | |
1090 | { "-Wno-missing-braces", "" }, | |
1091 | { "-Wmissing-declarations", | |
1092 | "Warn about global funcs without previous declarations"}, | |
1093 | { "-Wno-missing-declarations", "" }, | |
1094 | { "-Wmissing-prototypes", "Warn about global funcs without prototypes" }, | |
1095 | { "-Wno-missing-prototypes", "" }, | |
1096 | { "-Wmultichar", "Warn about use of multicharacter literals"}, | |
1097 | { "-Wno-multichar", "" }, | |
1098 | { "-Wnested-externs", "Warn about externs not at file scope level" }, | |
1099 | { "-Wno-nested-externs", "" }, | |
1100 | { "-Wparentheses", "Warn about possible missing parentheses" }, | |
1101 | { "-Wno-parentheses", "" }, | |
1102 | { "-Wpointer-arith", "Warn about function pointer arithmetic" }, | |
1103 | { "-Wno-pointer-arith", "" }, | |
1104 | { "-Wredundant-decls", | |
1105 | "Warn about multiple declarations of the same object" }, | |
1106 | { "-Wno-redundant-decls", "" }, | |
1107 | { "-Wsign-compare", "Warn about signed/unsigned comparisons" }, | |
1108 | { "-Wno-sign-compare", "" }, | |
1109 | { "-Wunknown-pragmas", "Warn about unrecognised pragmas" }, | |
1110 | { "-Wno-unknown-pragmas", "" }, | |
1111 | { "-Wstrict-prototypes", "Warn about non-prototyped function decls" }, | |
1112 | { "-Wno-strict-prototypes", "" }, | |
630962bf | 1113 | { "-Wtraditional", "Warn about constructs whose meaning change in ANSI C"}, |
b8468bc7 NC |
1114 | { "-Wno-traditional", "" }, |
1115 | { "-Wtrigraphs", "Warn when trigraphs are encountered" }, | |
1116 | { "-Wno-trigraphs", "" }, | |
1117 | { "-Wundef", "" }, | |
1118 | { "-Wno-undef", "" }, | |
1119 | { "-Wwrite-strings", "Mark strings as 'const char *'"}, | |
1120 | { "-Wno-write-strings", "" }, | |
a457294f | 1121 | |
a0d85b75 | 1122 | /* These are for languages with USE_CPPLIB. */ |
b8468bc7 | 1123 | /* These options are already documented in cpplib.c */ |
40f943dd | 1124 | { "--help", "" }, |
b8468bc7 NC |
1125 | { "-A", "" }, |
1126 | { "-D", "" }, | |
1127 | { "-I", "" }, | |
593d7853 DB |
1128 | #if USE_CPPLIB |
1129 | { "-MD", "Print dependencies to FILE.d" }, | |
1130 | { "-MMD", "Print dependencies to FILE.d" }, | |
1131 | { "-M", "Print dependencies to stdout" }, | |
1132 | { "-MM", "Print dependencies to stdout" }, | |
1133 | #endif /* USE_CPPLIB */ | |
b8468bc7 | 1134 | { "-U", "" }, |
add7091b | 1135 | { "-H", "" }, |
b8468bc7 | 1136 | { "-idirafter", "" }, |
6fa72945 ZW |
1137 | { "-imacros", "" }, |
1138 | { "-include", "" }, | |
b8468bc7 NC |
1139 | { "-iprefix", "" }, |
1140 | { "-isystem", "" }, | |
6fa72945 ZW |
1141 | { "-iwithprefix", "" }, |
1142 | { "-iwithprefixbefore", "" }, | |
b8468bc7 NC |
1143 | { "-lang-c", "" }, |
1144 | { "-lang-c89", "" }, | |
1145 | { "-lang-c++", "" }, | |
6fa72945 | 1146 | { "-remap", "" }, |
b8468bc7 NC |
1147 | { "-nostdinc", "" }, |
1148 | { "-nostdinc++", "" }, | |
1149 | { "-trigraphs", "" }, | |
1150 | { "-undef", "" }, | |
b8468bc7 NC |
1151 | |
1152 | #define DEFINE_LANG_NAME(NAME) { NULL, NAME }, | |
1153 | ||
1154 | /* These are for obj c. */ | |
1155 | DEFINE_LANG_NAME ("Objective C") | |
1156 | ||
1157 | { "-lang-objc", "" }, | |
1158 | { "-gen-decls", "Dump decls to a .decl file" }, | |
62e7b719 | 1159 | { "-fgnu-runtime", "Generate code for GNU runtime environment" }, |
b8468bc7 NC |
1160 | { "-fno-gnu-runtime", "" }, |
1161 | { "-fnext-runtime", "Generate code for NeXT runtime environment" }, | |
1162 | { "-fno-next-runtime", "" }, | |
1163 | { "-Wselector", "Warn if a selector has multiple methods" }, | |
1164 | { "-Wno-selector", "" }, | |
1165 | { "-Wprotocol", "" }, | |
1166 | { "-Wno-protocol", "Do not warn if inherited methods are unimplemented"}, | |
1167 | { "-print-objc-runtime-info", | |
1168 | "Generate C header of platform specific features" }, | |
a0d85b75 | 1169 | |
2a95de17 | 1170 | #include "options.h" |
b8468bc7 | 1171 | |
b99933c7 | 1172 | }; |
b8468bc7 NC |
1173 | |
1174 | /* Here is a table, controlled by the tm.h file, listing each -m switch | |
1175 | and which bits in `target_switches' it should set or clear. | |
1176 | If VALUE is positive, it is bits to set. | |
1177 | If VALUE is negative, -VALUE is bits to clear. | |
1178 | (The sign bit is not used so there is no confusion.) */ | |
1179 | ||
1180 | struct | |
1181 | { | |
87e11268 | 1182 | const char * name; |
b8468bc7 | 1183 | int value; |
87e11268 | 1184 | const char * description; |
b8468bc7 NC |
1185 | } |
1186 | target_switches [] = TARGET_SWITCHES; | |
1187 | ||
1188 | /* This table is similar, but allows the switch to have a value. */ | |
1189 | ||
1190 | #ifdef TARGET_OPTIONS | |
1191 | struct | |
1192 | { | |
87e11268 KG |
1193 | const char * prefix; |
1194 | const char ** variable; | |
1195 | const char * description; | |
b8468bc7 NC |
1196 | } |
1197 | target_options [] = TARGET_OPTIONS; | |
1198 | #endif | |
4291d9c8 RS |
1199 | \f |
1200 | /* Options controlling warnings */ | |
1201 | ||
1202 | /* Don't print warning messages. -w. */ | |
1203 | ||
1204 | int inhibit_warnings = 0; | |
1205 | ||
1206 | /* Print various extra warnings. -W. */ | |
1207 | ||
1208 | int extra_warnings = 0; | |
1209 | ||
1210 | /* Treat warnings as errors. -Werror. */ | |
1211 | ||
1212 | int warnings_are_errors = 0; | |
1213 | ||
1214 | /* Nonzero to warn about unused local variables. */ | |
1215 | ||
1216 | int warn_unused; | |
1217 | ||
312f6255 GK |
1218 | /* Nonzero to warn about code which is never reached. */ |
1219 | ||
1220 | int warn_notreached; | |
1221 | ||
4291d9c8 RS |
1222 | /* Nonzero to warn about variables used before they are initialized. */ |
1223 | ||
1224 | int warn_uninitialized; | |
1225 | ||
1226 | /* Nonzero means warn about all declarations which shadow others. */ | |
1227 | ||
1228 | int warn_shadow; | |
1229 | ||
1230 | /* Warn if a switch on an enum fails to have a case for every enum value. */ | |
1231 | ||
1232 | int warn_switch; | |
1233 | ||
1234 | /* Nonzero means warn about function definitions that default the return type | |
1235 | or that use a null return and have a return-type other than void. */ | |
1236 | ||
1237 | int warn_return_type; | |
1238 | ||
1239 | /* Nonzero means warn about pointer casts that increase the required | |
1240 | alignment of the target type (and might therefore lead to a crash | |
1241 | due to a misaligned access). */ | |
1242 | ||
1243 | int warn_cast_align; | |
1244 | ||
1245 | /* Nonzero means warn about any identifiers that match in the first N | |
1246 | characters. The value N is in `id_clash_len'. */ | |
1247 | ||
1248 | int warn_id_clash; | |
b51e9c62 RK |
1249 | unsigned id_clash_len; |
1250 | ||
1251 | /* Nonzero means warn about any objects definitions whose size is larger | |
1252 | than N bytes. Also want about function definitions whose returned | |
1253 | values are larger than N bytes. The value N is in `larger_than_size'. */ | |
1254 | ||
1255 | int warn_larger_than; | |
1256 | unsigned larger_than_size; | |
4291d9c8 RS |
1257 | |
1258 | /* Nonzero means warn if inline function is too large. */ | |
1259 | ||
1260 | int warn_inline; | |
1261 | ||
1262 | /* Warn if a function returns an aggregate, | |
1263 | since there are often incompatible calling conventions for doing this. */ | |
1264 | ||
1265 | int warn_aggregate_return; | |
1266 | ||
1267 | /* Likewise for -W. */ | |
1268 | ||
b8468bc7 | 1269 | lang_independent_options W_options[] = |
4291d9c8 | 1270 | { |
b8468bc7 NC |
1271 | {"unused", &warn_unused, 1, "Warn when a variable is unused" }, |
1272 | {"error", &warnings_are_errors, 1, ""}, | |
1273 | {"shadow", &warn_shadow, 1, "Warn when one local variable shadows another" }, | |
1274 | {"switch", &warn_switch, 1, | |
1275 | "Warn about enumerated switches missing a specific case" }, | |
1276 | {"aggregate-return", &warn_aggregate_return, 1, | |
1277 | "Warn about returning structures, unions or arrays" }, | |
1278 | {"cast-align", &warn_cast_align, 1, | |
1279 | "Warn about pointer casts which increase alignment" }, | |
312f6255 GK |
1280 | {"unreachable-code", &warn_notreached, 1, |
1281 | "Warn about code that will never be executed" }, | |
b8468bc7 NC |
1282 | {"uninitialized", &warn_uninitialized, 1, |
1283 | "Warn about unitialized automatic variables"}, | |
1284 | {"inline", &warn_inline, 1, | |
1285 | "Warn when an inlined function cannot be inlined"} | |
4291d9c8 RS |
1286 | }; |
1287 | \f | |
1288 | /* Output files for assembler code (real compiler output) | |
1289 | and debugging dumps. */ | |
1290 | ||
1291 | FILE *asm_out_file; | |
1292 | FILE *aux_info_file; | |
032713aa | 1293 | FILE *rtl_dump_file = NULL; |
4291d9c8 | 1294 | |
132e01b1 TP |
1295 | /* Decode the string P as an integral parameter. |
1296 | If the string is indeed an integer return its numeric value else | |
192babfd TP |
1297 | issue an Invalid Option error for the option PNAME and return DEFVAL. |
1298 | If PNAME is zero just return DEFVAL, do not call error. */ | |
132e01b1 TP |
1299 | |
1300 | int | |
1301 | read_integral_parameter (p, pname, defval) | |
192babfd TP |
1302 | const char *p; |
1303 | const char *pname; | |
1304 | const int defval; | |
132e01b1 | 1305 | { |
192babfd | 1306 | const char *endp = p; |
132e01b1 TP |
1307 | |
1308 | while (*endp) | |
1309 | { | |
1310 | if (*endp >= '0' && *endp <= '9') | |
1311 | endp++; | |
1312 | else | |
192babfd TP |
1313 | break; |
1314 | } | |
1315 | ||
1316 | if (*endp != 0) | |
1317 | { | |
1318 | if (pname != 0) | |
1319 | error ("Invalid option `%s'", pname); | |
1320 | return defval; | |
132e01b1 TP |
1321 | } |
1322 | ||
1323 | return atoi (p); | |
1324 | } | |
1325 | ||
1326 | ||
4291d9c8 RS |
1327 | /* Time accumulators, to count the total time spent in various passes. */ |
1328 | ||
1329 | int parse_time; | |
1330 | int varconst_time; | |
1331 | int integration_time; | |
1332 | int jump_time; | |
1333 | int cse_time; | |
7506f491 | 1334 | int gcse_time; |
4291d9c8 RS |
1335 | int loop_time; |
1336 | int cse2_time; | |
0d332add | 1337 | int branch_prob_time; |
4291d9c8 RS |
1338 | int flow_time; |
1339 | int combine_time; | |
8c660648 | 1340 | int regmove_time; |
4291d9c8 RS |
1341 | int sched_time; |
1342 | int local_alloc_time; | |
1343 | int global_alloc_time; | |
e881bb1b | 1344 | int flow2_time; |
4291d9c8 | 1345 | int sched2_time; |
bd334356 | 1346 | #ifdef DELAY_SLOTS |
4291d9c8 | 1347 | int dbr_sched_time; |
bd334356 | 1348 | #endif |
4291d9c8 RS |
1349 | int shorten_branch_time; |
1350 | int stack_reg_time; | |
1351 | int final_time; | |
1352 | int symout_time; | |
1353 | int dump_time; | |
0a25f1f5 RH |
1354 | int gc_time; |
1355 | int all_time; | |
4291d9c8 RS |
1356 | \f |
1357 | /* Return time used so far, in microseconds. */ | |
1358 | ||
2778b98d | 1359 | long |
4291d9c8 RS |
1360 | get_run_time () |
1361 | { | |
4291d9c8 RS |
1362 | if (quiet_flag) |
1363 | return 0; | |
83c8ddef | 1364 | |
332c1bb4 JL |
1365 | #ifdef __BEOS__ |
1366 | return 0; | |
1367 | #else /* not BeOS */ | |
cae21ae8 | 1368 | #if defined (_WIN32) && !defined (__CYGWIN__) |
15f00097 RK |
1369 | if (clock() < 0) |
1370 | return 0; | |
1371 | else | |
1372 | return (clock() * 1000); | |
9580b583 | 1373 | #else /* not _WIN32 */ |
4e762a38 JC |
1374 | #ifdef _SC_CLK_TCK |
1375 | { | |
1376 | static int tick; | |
83c8ddef | 1377 | struct tms tms; |
4e762a38 JC |
1378 | if (tick == 0) |
1379 | tick = 1000000 / sysconf(_SC_CLK_TCK); | |
1380 | times (&tms); | |
1381 | return (tms.tms_utime + tms.tms_stime) * tick; | |
1382 | } | |
1383 | #else | |
4291d9c8 | 1384 | #ifdef USG |
83c8ddef RH |
1385 | { |
1386 | struct tms tms; | |
e5e809f4 JL |
1387 | # if HAVE_SYSCONF && defined _SC_CLK_TCK |
1388 | # define TICKS_PER_SECOND sysconf (_SC_CLK_TCK) /* POSIX 1003.1-1996 */ | |
1389 | # else | |
1390 | # ifdef CLK_TCK | |
1391 | # define TICKS_PER_SECOND CLK_TCK /* POSIX 1003.1-1988; obsolescent */ | |
1392 | # else | |
1393 | # define TICKS_PER_SECOND HZ /* traditional UNIX */ | |
1394 | # endif | |
1395 | # endif | |
83c8ddef | 1396 | times (&tms); |
e5e809f4 | 1397 | return (tms.tms_utime + tms.tms_stime) * (1000000 / TICKS_PER_SECOND); |
83c8ddef | 1398 | } |
4291d9c8 RS |
1399 | #else |
1400 | #ifndef VMS | |
83c8ddef RH |
1401 | { |
1402 | struct rusage rusage; | |
1403 | getrusage (0, &rusage); | |
1404 | return (rusage.ru_utime.tv_sec * 1000000 + rusage.ru_utime.tv_usec | |
1405 | + rusage.ru_stime.tv_sec * 1000000 + rusage.ru_stime.tv_usec); | |
1406 | } | |
4291d9c8 | 1407 | #else /* VMS */ |
83c8ddef RH |
1408 | { |
1409 | struct | |
1410 | { | |
1411 | int proc_user_time; | |
1412 | int proc_system_time; | |
1413 | int child_user_time; | |
1414 | int child_system_time; | |
1415 | } vms_times; | |
1416 | times ((void *) &vms_times); | |
1417 | return (vms_times.proc_user_time + vms_times.proc_system_time) * 10000; | |
1418 | } | |
c55dcc7d FF |
1419 | #endif /* VMS */ |
1420 | #endif /* USG */ | |
4e762a38 | 1421 | #endif /* _SC_CLK_TCK */ |
c55dcc7d FF |
1422 | #endif /* _WIN32 */ |
1423 | #endif /* __BEOS__ */ | |
4291d9c8 RS |
1424 | } |
1425 | ||
1426 | #define TIMEVAR(VAR, BODY) \ | |
1427 | do { int otime = get_run_time (); BODY; VAR += get_run_time () - otime; } while (0) | |
1428 | ||
1429 | void | |
1430 | print_time (str, total) | |
87e11268 | 1431 | const char *str; |
4291d9c8 RS |
1432 | int total; |
1433 | { | |
1434 | fprintf (stderr, | |
0a25f1f5 RH |
1435 | "time in %s: %d.%06d (%.0f%%)\n", |
1436 | str, total / 1000000, total % 1000000, | |
1437 | (double)total / (double)all_time * 100.0); | |
4291d9c8 RS |
1438 | } |
1439 | ||
1440 | /* Count an error or warning. Return 1 if the message should be printed. */ | |
1441 | ||
1442 | int | |
1443 | count_error (warningp) | |
1444 | int warningp; | |
1445 | { | |
1446 | if (warningp && inhibit_warnings) | |
1447 | return 0; | |
1448 | ||
1449 | if (warningp && !warnings_are_errors) | |
1450 | warningcount++; | |
1451 | else | |
1452 | { | |
1453 | static int warning_message = 0; | |
1454 | ||
1455 | if (warningp && !warning_message) | |
1456 | { | |
ab87f8c8 | 1457 | notice ("%s: warnings being treated as errors\n", progname); |
4291d9c8 RS |
1458 | warning_message = 1; |
1459 | } | |
1460 | errorcount++; | |
1461 | } | |
1462 | ||
1463 | return 1; | |
1464 | } | |
1465 | ||
1466 | /* Print a fatal error message. NAME is the text. | |
1467 | Also include a system error message based on `errno'. */ | |
1468 | ||
1469 | void | |
1470 | pfatal_with_name (name) | |
87e11268 | 1471 | const char *name; |
4291d9c8 RS |
1472 | { |
1473 | fprintf (stderr, "%s: ", progname); | |
1474 | perror (name); | |
299846f2 | 1475 | exit (FATAL_EXIT_CODE); |
4291d9c8 RS |
1476 | } |
1477 | ||
1478 | void | |
1479 | fatal_io_error (name) | |
87e11268 | 1480 | const char *name; |
4291d9c8 | 1481 | { |
ab87f8c8 | 1482 | notice ("%s: %s: I/O error\n", progname, name); |
299846f2 | 1483 | exit (FATAL_EXIT_CODE); |
4291d9c8 RS |
1484 | } |
1485 | ||
4291d9c8 RS |
1486 | /* This is the default decl_printable_name function. */ |
1487 | ||
5f8ded66 | 1488 | static const char * |
a1d7ffe3 | 1489 | decl_name (decl, verbosity) |
4291d9c8 | 1490 | tree decl; |
114791ea | 1491 | int verbosity ATTRIBUTE_UNUSED; |
4291d9c8 RS |
1492 | { |
1493 | return IDENTIFIER_POINTER (DECL_NAME (decl)); | |
1494 | } | |
1495 | \f | |
1496 | static int need_error_newline; | |
1497 | ||
1498 | /* Function of last error message; | |
1499 | more generally, function such that if next error message is in it | |
1500 | then we don't have to mention the function name. */ | |
1501 | static tree last_error_function = NULL; | |
1502 | ||
1503 | /* Used to detect when input_file_stack has changed since last described. */ | |
1504 | static int last_error_tick; | |
1505 | ||
1506 | /* Called when the start of a function definition is parsed, | |
1507 | this function prints on stderr the name of the function. */ | |
1508 | ||
1509 | void | |
1510 | announce_function (decl) | |
1511 | tree decl; | |
1512 | { | |
1513 | if (! quiet_flag) | |
1514 | { | |
4291d9c8 RS |
1515 | if (rtl_dump_and_exit) |
1516 | fprintf (stderr, "%s ", IDENTIFIER_POINTER (DECL_NAME (decl))); | |
1517 | else | |
a1d7ffe3 | 1518 | fprintf (stderr, " %s", (*decl_printable_name) (decl, 2)); |
4291d9c8 RS |
1519 | fflush (stderr); |
1520 | need_error_newline = 1; | |
1521 | last_error_function = current_function_decl; | |
1522 | } | |
1523 | } | |
1524 | ||
b64e9948 PB |
1525 | /* The default function to print out name of current function that caused |
1526 | an error. */ | |
4291d9c8 RS |
1527 | |
1528 | void | |
b64e9948 | 1529 | default_print_error_function (file) |
87e11268 | 1530 | const char *file; |
4291d9c8 | 1531 | { |
4291d9c8 RS |
1532 | if (last_error_function != current_function_decl) |
1533 | { | |
4291d9c8 RS |
1534 | if (file) |
1535 | fprintf (stderr, "%s: ", file); | |
1536 | ||
1537 | if (current_function_decl == NULL) | |
ab87f8c8 | 1538 | notice ("At top level:\n"); |
4291d9c8 | 1539 | else |
ab87f8c8 JL |
1540 | notice ((TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE |
1541 | ? "In method `%s':\n" | |
1542 | : "In function `%s':\n"), | |
1543 | (*decl_printable_name) (current_function_decl, 2)); | |
4291d9c8 RS |
1544 | |
1545 | last_error_function = current_function_decl; | |
1546 | } | |
b64e9948 PB |
1547 | } |
1548 | ||
1549 | /* Called by report_error_function to print out function name. | |
0f41302f | 1550 | * Default may be overridden by language front-ends. */ |
b64e9948 | 1551 | |
87e11268 KG |
1552 | void (*print_error_function) PROTO((const char *)) = |
1553 | default_print_error_function; | |
b64e9948 PB |
1554 | |
1555 | /* Prints out, if necessary, the name of the current function | |
c1709d0c NS |
1556 | that caused an error. Called from all error and warning functions. |
1557 | We ignore the FILE parameter, as it cannot be relied upon. */ | |
b64e9948 PB |
1558 | |
1559 | void | |
1560 | report_error_function (file) | |
c1709d0c | 1561 | const char *file ATTRIBUTE_UNUSED; |
b64e9948 PB |
1562 | { |
1563 | struct file_stack *p; | |
1564 | ||
1565 | if (need_error_newline) | |
1566 | { | |
1567 | fprintf (stderr, "\n"); | |
1568 | need_error_newline = 0; | |
1569 | } | |
1570 | ||
4291d9c8 | 1571 | if (input_file_stack && input_file_stack->next != 0 |
c1709d0c | 1572 | && input_file_stack_tick != last_error_tick) |
4291d9c8 | 1573 | { |
4291d9c8 | 1574 | for (p = input_file_stack->next; p; p = p->next) |
ab87f8c8 JL |
1575 | notice ((p == input_file_stack->next |
1576 | ? "In file included from %s:%d" | |
1577 | : ",\n from %s:%d"), | |
1578 | p->name, p->line); | |
4291d9c8 RS |
1579 | fprintf (stderr, ":\n"); |
1580 | last_error_tick = input_file_stack_tick; | |
1581 | } | |
c1709d0c NS |
1582 | |
1583 | (*print_error_function) (input_filename); | |
4291d9c8 | 1584 | } |
eb711c86 RK |
1585 | \f |
1586 | /* Print a message. */ | |
4291d9c8 | 1587 | |
eb711c86 | 1588 | static void |
ab87f8c8 JL |
1589 | vnotice (file, msgid, ap) |
1590 | FILE *file; | |
1591 | char *msgid; | |
1592 | va_list ap; | |
1593 | { | |
1594 | vfprintf (file, _(msgid), ap); | |
1595 | } | |
1596 | ||
1597 | void | |
1598 | notice VPROTO((const char *msgid, ...)) | |
1599 | { | |
96df87b8 | 1600 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 JL |
1601 | char *msgid; |
1602 | #endif | |
1603 | va_list ap; | |
1604 | ||
1605 | VA_START (ap, msgid); | |
1606 | ||
96df87b8 | 1607 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 JL |
1608 | msgid = va_arg (ap, char *); |
1609 | #endif | |
1610 | ||
1611 | vnotice (stderr, msgid, ap); | |
1612 | va_end (ap); | |
1613 | } | |
1614 | ||
1615 | void | |
644f3d7e | 1616 | fnotice VPROTO((FILE *file, const char *msgid, ...)) |
ab87f8c8 | 1617 | { |
96df87b8 | 1618 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 1619 | FILE *file; |
644f3d7e | 1620 | const char *msgid; |
ab87f8c8 JL |
1621 | #endif |
1622 | va_list ap; | |
1623 | ||
1624 | VA_START (ap, msgid); | |
1625 | ||
96df87b8 | 1626 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 1627 | file = va_arg (ap, FILE *); |
644f3d7e | 1628 | msgid = va_arg (ap, const char *); |
ab87f8c8 JL |
1629 | #endif |
1630 | ||
1631 | vnotice (file, msgid, ap); | |
1632 | va_end (ap); | |
1633 | } | |
1634 | ||
1635 | /* Report FILE and LINE (or program name), and optionally just WARN. */ | |
1636 | ||
1637 | static void | |
1638 | report_file_and_line (file, line, warn) | |
1639 | char *file; | |
1640 | int line; | |
1641 | int warn; | |
1642 | { | |
1643 | if (file) | |
1644 | fprintf (stderr, "%s:%d: ", file, line); | |
1645 | else | |
1646 | fprintf (stderr, "%s: ", progname); | |
1647 | ||
1648 | if (warn) | |
1649 | notice ("warning: "); | |
1650 | } | |
1651 | ||
1652 | /* Print a message. */ | |
1653 | ||
1654 | static void | |
1655 | vmessage (prefix, msgid, ap) | |
87e11268 | 1656 | const char *prefix; |
ab87f8c8 | 1657 | const char *msgid; |
eb711c86 | 1658 | va_list ap; |
4291d9c8 | 1659 | { |
eb711c86 RK |
1660 | if (prefix) |
1661 | fprintf (stderr, "%s: ", prefix); | |
1662 | ||
ab87f8c8 | 1663 | vfprintf (stderr, msgid, ap); |
4291d9c8 RS |
1664 | } |
1665 | ||
eb711c86 | 1666 | /* Print a message relevant to line LINE of file FILE. */ |
4291d9c8 | 1667 | |
eb711c86 | 1668 | static void |
ab87f8c8 | 1669 | v_message_with_file_and_line (file, line, warn, msgid, ap) |
87e11268 | 1670 | const char *file; |
4291d9c8 | 1671 | int line; |
ab87f8c8 JL |
1672 | int warn; |
1673 | const char *msgid; | |
eb711c86 | 1674 | va_list ap; |
4291d9c8 | 1675 | { |
ab87f8c8 JL |
1676 | report_file_and_line (file, line, warn); |
1677 | vnotice (stderr, msgid, ap); | |
eb711c86 | 1678 | fputc ('\n', stderr); |
4291d9c8 RS |
1679 | } |
1680 | ||
eb711c86 | 1681 | /* Print a message relevant to the given DECL. */ |
4291d9c8 | 1682 | |
eb711c86 | 1683 | static void |
ab87f8c8 | 1684 | v_message_with_decl (decl, warn, msgid, ap) |
4291d9c8 | 1685 | tree decl; |
ab87f8c8 JL |
1686 | int warn; |
1687 | const char *msgid; | |
eb711c86 | 1688 | va_list ap; |
4291d9c8 | 1689 | { |
87e11268 | 1690 | const char *p; |
4291d9c8 | 1691 | |
ab87f8c8 JL |
1692 | report_file_and_line (DECL_SOURCE_FILE (decl), |
1693 | DECL_SOURCE_LINE (decl), warn); | |
eb711c86 RK |
1694 | |
1695 | /* Do magic to get around lack of varargs support for insertion | |
1696 | of arguments into existing list. We know that the decl is first; | |
1697 | we ass_u_me that it will be printed with "%s". */ | |
1698 | ||
ab87f8c8 | 1699 | for (p = _(msgid); *p; ++p) |
eb711c86 RK |
1700 | { |
1701 | if (*p == '%') | |
1702 | { | |
1703 | if (*(p + 1) == '%') | |
1704 | ++p; | |
ab87f8c8 JL |
1705 | else if (*(p + 1) != 's') |
1706 | abort (); | |
eb711c86 RK |
1707 | else |
1708 | break; | |
1709 | } | |
1710 | } | |
1711 | ||
ab87f8c8 | 1712 | if (p > _(msgid)) /* Print the left-hand substring. */ |
cb039f8a RK |
1713 | { |
1714 | char fmt[sizeof "%.255s"]; | |
ab87f8c8 | 1715 | long width = p - _(msgid); |
cb039f8a RK |
1716 | |
1717 | if (width > 255L) width = 255L; /* arbitrary */ | |
1718 | sprintf (fmt, "%%.%lds", width); | |
ab87f8c8 | 1719 | fprintf (stderr, fmt, _(msgid)); |
cb039f8a | 1720 | } |
eb711c86 | 1721 | |
cb039f8a | 1722 | if (*p == '%') /* Print the name. */ |
eb711c86 | 1723 | { |
87e11268 | 1724 | const char *n = (DECL_NAME (decl) |
a1d7ffe3 | 1725 | ? (*decl_printable_name) (decl, 2) |
eb711c86 RK |
1726 | : "((anonymous))"); |
1727 | fputs (n, stderr); | |
1728 | while (*p) | |
1729 | { | |
1730 | ++p; | |
e9a780ec | 1731 | if (ISALPHA (*(p - 1) & 0xFF)) |
eb711c86 RK |
1732 | break; |
1733 | } | |
1734 | } | |
1735 | ||
cb039f8a | 1736 | if (*p) /* Print the rest of the message. */ |
eb711c86 RK |
1737 | vmessage ((char *)NULL, p, ap); |
1738 | ||
1739 | fputc ('\n', stderr); | |
4291d9c8 RS |
1740 | } |
1741 | ||
eb711c86 | 1742 | /* Figure file and line of the given INSN. */ |
4291d9c8 | 1743 | |
eb711c86 RK |
1744 | static void |
1745 | file_and_line_for_asm (insn, pfile, pline) | |
4291d9c8 | 1746 | rtx insn; |
eb711c86 RK |
1747 | char **pfile; |
1748 | int *pline; | |
4291d9c8 | 1749 | { |
4291d9c8 RS |
1750 | rtx body = PATTERN (insn); |
1751 | rtx asmop; | |
1752 | ||
1753 | /* Find the (or one of the) ASM_OPERANDS in the insn. */ | |
1754 | if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS) | |
1755 | asmop = SET_SRC (body); | |
1756 | else if (GET_CODE (body) == ASM_OPERANDS) | |
1757 | asmop = body; | |
1758 | else if (GET_CODE (body) == PARALLEL | |
1759 | && GET_CODE (XVECEXP (body, 0, 0)) == SET) | |
1760 | asmop = SET_SRC (XVECEXP (body, 0, 0)); | |
1761 | else if (GET_CODE (body) == PARALLEL | |
1762 | && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS) | |
1763 | asmop = XVECEXP (body, 0, 0); | |
eb711c86 RK |
1764 | else |
1765 | asmop = NULL; | |
1766 | ||
1767 | if (asmop) | |
1768 | { | |
1769 | *pfile = ASM_OPERANDS_SOURCE_FILE (asmop); | |
1770 | *pline = ASM_OPERANDS_SOURCE_LINE (asmop); | |
1771 | } | |
1772 | else | |
1773 | { | |
1774 | *pfile = input_filename; | |
1775 | *pline = lineno; | |
1776 | } | |
1777 | } | |
4291d9c8 | 1778 | |
eb711c86 | 1779 | /* Report an error at line LINE of file FILE. */ |
4291d9c8 | 1780 | |
eb711c86 | 1781 | static void |
ab87f8c8 | 1782 | v_error_with_file_and_line (file, line, msgid, ap) |
87e11268 | 1783 | const char *file; |
eb711c86 | 1784 | int line; |
ab87f8c8 | 1785 | const char *msgid; |
eb711c86 RK |
1786 | va_list ap; |
1787 | { | |
1788 | count_error (0); | |
1789 | report_error_function (file); | |
ab87f8c8 | 1790 | v_message_with_file_and_line (file, line, 0, msgid, ap); |
d78c6ad5 RK |
1791 | } |
1792 | ||
1793 | void | |
87e11268 | 1794 | error_with_file_and_line VPROTO((const char *file, int line, |
ab87f8c8 | 1795 | const char *msgid, ...)) |
d78c6ad5 | 1796 | { |
5148a72b | 1797 | #ifndef ANSI_PROTOTYPES |
87e11268 | 1798 | const char *file; |
eb711c86 | 1799 | int line; |
ab87f8c8 | 1800 | const char *msgid; |
e0e2a8da RK |
1801 | #endif |
1802 | va_list ap; | |
1803 | ||
ab87f8c8 | 1804 | VA_START (ap, msgid); |
eb711c86 | 1805 | |
5148a72b | 1806 | #ifndef ANSI_PROTOTYPES |
87e11268 | 1807 | file = va_arg (ap, const char *); |
eb711c86 | 1808 | line = va_arg (ap, int); |
ab87f8c8 | 1809 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
1810 | #endif |
1811 | ||
ab87f8c8 | 1812 | v_error_with_file_and_line (file, line, msgid, ap); |
eb711c86 | 1813 | va_end (ap); |
4291d9c8 RS |
1814 | } |
1815 | ||
eb711c86 | 1816 | /* Report an error at the declaration DECL. |
ab87f8c8 | 1817 | MSGID is a format string which uses %s to substitute the declaration |
eb711c86 RK |
1818 | name; subsequent substitutions are a la printf. */ |
1819 | ||
1820 | static void | |
ab87f8c8 | 1821 | v_error_with_decl (decl, msgid, ap) |
eb711c86 | 1822 | tree decl; |
ab87f8c8 | 1823 | const char *msgid; |
eb711c86 RK |
1824 | va_list ap; |
1825 | { | |
1826 | count_error (0); | |
1827 | report_error_function (DECL_SOURCE_FILE (decl)); | |
ab87f8c8 | 1828 | v_message_with_decl (decl, 0, msgid, ap); |
eb711c86 | 1829 | } |
4291d9c8 RS |
1830 | |
1831 | void | |
ab87f8c8 | 1832 | error_with_decl VPROTO((tree decl, const char *msgid, ...)) |
eb711c86 | 1833 | { |
5148a72b | 1834 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 1835 | tree decl; |
ab87f8c8 | 1836 | const char *msgid; |
e0e2a8da RK |
1837 | #endif |
1838 | va_list ap; | |
eb711c86 | 1839 | |
ab87f8c8 | 1840 | VA_START (ap, msgid); |
e0e2a8da | 1841 | |
5148a72b | 1842 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 1843 | decl = va_arg (ap, tree); |
ab87f8c8 | 1844 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
1845 | #endif |
1846 | ||
ab87f8c8 | 1847 | v_error_with_decl (decl, msgid, ap); |
eb711c86 RK |
1848 | va_end (ap); |
1849 | } | |
1850 | ||
1851 | /* Report an error at the line number of the insn INSN. | |
1852 | This is used only when INSN is an `asm' with operands, | |
1853 | and each ASM_OPERANDS records its own source file and line. */ | |
1854 | ||
1855 | static void | |
ab87f8c8 | 1856 | v_error_for_asm (insn, msgid, ap) |
eb711c86 | 1857 | rtx insn; |
ab87f8c8 | 1858 | const char *msgid; |
eb711c86 | 1859 | va_list ap; |
4291d9c8 | 1860 | { |
eb711c86 RK |
1861 | char *file; |
1862 | int line; | |
4291d9c8 | 1863 | |
eb711c86 RK |
1864 | count_error (0); |
1865 | file_and_line_for_asm (insn, &file, &line); | |
4291d9c8 | 1866 | report_error_function (file); |
ab87f8c8 | 1867 | v_message_with_file_and_line (file, line, 0, msgid, ap); |
eb711c86 | 1868 | } |
4291d9c8 | 1869 | |
eb711c86 | 1870 | void |
ab87f8c8 | 1871 | error_for_asm VPROTO((rtx insn, const char *msgid, ...)) |
eb711c86 | 1872 | { |
5148a72b | 1873 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 1874 | rtx insn; |
ab87f8c8 | 1875 | const char *msgid; |
e0e2a8da RK |
1876 | #endif |
1877 | va_list ap; | |
eb711c86 | 1878 | |
ab87f8c8 | 1879 | VA_START (ap, msgid); |
e0e2a8da | 1880 | |
5148a72b | 1881 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 1882 | insn = va_arg (ap, rtx); |
ab87f8c8 | 1883 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
1884 | #endif |
1885 | ||
ab87f8c8 | 1886 | v_error_for_asm (insn, msgid, ap); |
eb711c86 | 1887 | va_end (ap); |
4291d9c8 RS |
1888 | } |
1889 | ||
eb711c86 | 1890 | /* Report an error at the current line number. */ |
4291d9c8 | 1891 | |
eb711c86 | 1892 | static void |
ab87f8c8 JL |
1893 | verror (msgid, ap) |
1894 | const char *msgid; | |
eb711c86 | 1895 | va_list ap; |
4291d9c8 | 1896 | { |
ab87f8c8 | 1897 | v_error_with_file_and_line (input_filename, lineno, msgid, ap); |
4291d9c8 RS |
1898 | } |
1899 | ||
eb711c86 | 1900 | void |
ab87f8c8 | 1901 | error VPROTO((const char *msgid, ...)) |
eb711c86 | 1902 | { |
5148a72b | 1903 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 1904 | const char *msgid; |
e0e2a8da RK |
1905 | #endif |
1906 | va_list ap; | |
1907 | ||
ab87f8c8 | 1908 | VA_START (ap, msgid); |
eb711c86 | 1909 | |
5148a72b | 1910 | #ifndef ANSI_PROTOTYPES |
1c5d09e4 | 1911 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
1912 | #endif |
1913 | ||
ab87f8c8 | 1914 | verror (msgid, ap); |
eb711c86 RK |
1915 | va_end (ap); |
1916 | } | |
1917 | ||
1918 | /* Report a fatal error at the current line number. */ | |
1919 | ||
1920 | static void | |
ab87f8c8 JL |
1921 | vfatal (msgid, ap) |
1922 | const char *msgid; | |
eb711c86 RK |
1923 | va_list ap; |
1924 | { | |
ab87f8c8 | 1925 | verror (msgid, ap); |
299846f2 | 1926 | exit (FATAL_EXIT_CODE); |
eb711c86 | 1927 | } |
4291d9c8 RS |
1928 | |
1929 | void | |
ab87f8c8 | 1930 | fatal VPROTO((const char *msgid, ...)) |
eb711c86 | 1931 | { |
5148a72b | 1932 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 1933 | const char *msgid; |
e0e2a8da RK |
1934 | #endif |
1935 | va_list ap; | |
1936 | ||
ab87f8c8 | 1937 | VA_START (ap, msgid); |
eb711c86 | 1938 | |
5148a72b | 1939 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 1940 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
1941 | #endif |
1942 | ||
ab87f8c8 | 1943 | vfatal (msgid, ap); |
eb711c86 RK |
1944 | va_end (ap); |
1945 | } | |
1946 | ||
987009bf ZW |
1947 | void |
1948 | _fatal_insn (msgid, insn, file, line, function) | |
1949 | const char *msgid; | |
1950 | rtx insn; | |
1951 | const char *file; | |
1952 | int line; | |
1953 | const char *function; | |
1954 | { | |
1955 | error (msgid); | |
1956 | debug_rtx (insn); | |
1957 | fancy_abort (file, line, function); | |
1958 | } | |
1959 | ||
1960 | void | |
1961 | _fatal_insn_not_found (insn, file, line, function) | |
1962 | rtx insn; | |
1963 | const char *file; | |
1964 | int line; | |
1965 | const char *function; | |
1966 | { | |
1967 | if (INSN_CODE (insn) < 0) | |
1968 | _fatal_insn ("Unrecognizable insn:", insn, file, line, function); | |
1969 | else | |
1970 | _fatal_insn ("Insn does not satisfy its constraints:", | |
1971 | insn, file, line, function); | |
1972 | } | |
1973 | ||
eb711c86 RK |
1974 | /* Report a warning at line LINE of file FILE. */ |
1975 | ||
1976 | static void | |
ab87f8c8 | 1977 | v_warning_with_file_and_line (file, line, msgid, ap) |
87e11268 | 1978 | const char *file; |
eb711c86 | 1979 | int line; |
ab87f8c8 | 1980 | const char *msgid; |
eb711c86 | 1981 | va_list ap; |
4291d9c8 | 1982 | { |
eb711c86 RK |
1983 | if (count_error (1)) |
1984 | { | |
1985 | report_error_function (file); | |
ab87f8c8 | 1986 | v_message_with_file_and_line (file, line, 1, msgid, ap); |
eb711c86 RK |
1987 | } |
1988 | } | |
4291d9c8 | 1989 | |
eb711c86 | 1990 | void |
87e11268 | 1991 | warning_with_file_and_line VPROTO((const char *file, int line, |
ab87f8c8 | 1992 | const char *msgid, ...)) |
eb711c86 | 1993 | { |
5148a72b | 1994 | #ifndef ANSI_PROTOTYPES |
87e11268 | 1995 | const char *file; |
eb711c86 | 1996 | int line; |
ab87f8c8 | 1997 | const char *msgid; |
e0e2a8da RK |
1998 | #endif |
1999 | va_list ap; | |
2000 | ||
ab87f8c8 | 2001 | VA_START (ap, msgid); |
eb711c86 | 2002 | |
5148a72b | 2003 | #ifndef ANSI_PROTOTYPES |
87e11268 | 2004 | file = va_arg (ap, const char *); |
eb711c86 | 2005 | line = va_arg (ap, int); |
ab87f8c8 | 2006 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2007 | #endif |
2008 | ||
ab87f8c8 | 2009 | v_warning_with_file_and_line (file, line, msgid, ap); |
eb711c86 RK |
2010 | va_end (ap); |
2011 | } | |
4291d9c8 | 2012 | |
eb711c86 | 2013 | /* Report a warning at the declaration DECL. |
ab87f8c8 | 2014 | MSGID is a format string which uses %s to substitute the declaration |
eb711c86 | 2015 | name; subsequent substitutions are a la printf. */ |
4291d9c8 | 2016 | |
eb711c86 | 2017 | static void |
ab87f8c8 | 2018 | v_warning_with_decl (decl, msgid, ap) |
eb711c86 | 2019 | tree decl; |
ab87f8c8 | 2020 | const char *msgid; |
eb711c86 RK |
2021 | va_list ap; |
2022 | { | |
2023 | if (count_error (1)) | |
2024 | { | |
2025 | report_error_function (DECL_SOURCE_FILE (decl)); | |
ab87f8c8 | 2026 | v_message_with_decl (decl, 1, msgid, ap); |
eb711c86 RK |
2027 | } |
2028 | } | |
4291d9c8 | 2029 | |
eb711c86 | 2030 | void |
ab87f8c8 | 2031 | warning_with_decl VPROTO((tree decl, const char *msgid, ...)) |
eb711c86 | 2032 | { |
5148a72b | 2033 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 2034 | tree decl; |
ab87f8c8 | 2035 | const char *msgid; |
e0e2a8da RK |
2036 | #endif |
2037 | va_list ap; | |
eb711c86 | 2038 | |
ab87f8c8 | 2039 | VA_START (ap, msgid); |
e0e2a8da | 2040 | |
5148a72b | 2041 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 2042 | decl = va_arg (ap, tree); |
ab87f8c8 | 2043 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2044 | #endif |
2045 | ||
ab87f8c8 | 2046 | v_warning_with_decl (decl, msgid, ap); |
eb711c86 | 2047 | va_end (ap); |
4291d9c8 RS |
2048 | } |
2049 | ||
2050 | /* Report a warning at the line number of the insn INSN. | |
4291d9c8 RS |
2051 | This is used only when INSN is an `asm' with operands, |
2052 | and each ASM_OPERANDS records its own source file and line. */ | |
2053 | ||
eb711c86 | 2054 | static void |
ab87f8c8 | 2055 | v_warning_for_asm (insn, msgid, ap) |
4291d9c8 | 2056 | rtx insn; |
ab87f8c8 | 2057 | const char *msgid; |
eb711c86 | 2058 | va_list ap; |
4291d9c8 | 2059 | { |
eb711c86 RK |
2060 | if (count_error (1)) |
2061 | { | |
2062 | char *file; | |
2063 | int line; | |
4291d9c8 | 2064 | |
eb711c86 RK |
2065 | file_and_line_for_asm (insn, &file, &line); |
2066 | report_error_function (file); | |
ab87f8c8 | 2067 | v_message_with_file_and_line (file, line, 1, msgid, ap); |
eb711c86 RK |
2068 | } |
2069 | } | |
4291d9c8 | 2070 | |
eb711c86 | 2071 | void |
ab87f8c8 | 2072 | warning_for_asm VPROTO((rtx insn, const char *msgid, ...)) |
eb711c86 | 2073 | { |
5148a72b | 2074 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 2075 | rtx insn; |
ab87f8c8 | 2076 | const char *msgid; |
e0e2a8da RK |
2077 | #endif |
2078 | va_list ap; | |
2079 | ||
ab87f8c8 | 2080 | VA_START (ap, msgid); |
eb711c86 | 2081 | |
5148a72b | 2082 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 2083 | insn = va_arg (ap, rtx); |
ab87f8c8 | 2084 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2085 | #endif |
2086 | ||
ab87f8c8 | 2087 | v_warning_for_asm (insn, msgid, ap); |
eb711c86 RK |
2088 | va_end (ap); |
2089 | } | |
4291d9c8 | 2090 | |
eb711c86 RK |
2091 | /* Report a warning at the current line number. */ |
2092 | ||
2093 | static void | |
ab87f8c8 JL |
2094 | vwarning (msgid, ap) |
2095 | const char *msgid; | |
eb711c86 RK |
2096 | va_list ap; |
2097 | { | |
ab87f8c8 | 2098 | v_warning_with_file_and_line (input_filename, lineno, msgid, ap); |
4291d9c8 | 2099 | } |
eb711c86 RK |
2100 | |
2101 | void | |
ab87f8c8 | 2102 | warning VPROTO((const char *msgid, ...)) |
eb711c86 | 2103 | { |
5148a72b | 2104 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 2105 | const char *msgid; |
e0e2a8da RK |
2106 | #endif |
2107 | va_list ap; | |
2108 | ||
ab87f8c8 | 2109 | VA_START (ap, msgid); |
eb711c86 | 2110 | |
5148a72b | 2111 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 2112 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2113 | #endif |
2114 | ||
ab87f8c8 | 2115 | vwarning (msgid, ap); |
eb711c86 RK |
2116 | va_end (ap); |
2117 | } | |
2118 | ||
4291d9c8 RS |
2119 | /* These functions issue either warnings or errors depending on |
2120 | -pedantic-errors. */ | |
2121 | ||
eb711c86 | 2122 | static void |
ab87f8c8 JL |
2123 | vpedwarn (msgid, ap) |
2124 | const char *msgid; | |
eb711c86 | 2125 | va_list ap; |
4291d9c8 RS |
2126 | { |
2127 | if (flag_pedantic_errors) | |
ab87f8c8 | 2128 | verror (msgid, ap); |
4291d9c8 | 2129 | else |
ab87f8c8 | 2130 | vwarning (msgid, ap); |
4291d9c8 RS |
2131 | } |
2132 | ||
2133 | void | |
ab87f8c8 | 2134 | pedwarn VPROTO((const char *msgid, ...)) |
eb711c86 | 2135 | { |
5148a72b | 2136 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 2137 | const char *msgid; |
e0e2a8da RK |
2138 | #endif |
2139 | va_list ap; | |
2140 | ||
ab87f8c8 | 2141 | VA_START (ap, msgid); |
eb711c86 | 2142 | |
5148a72b | 2143 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 2144 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2145 | #endif |
2146 | ||
ab87f8c8 | 2147 | vpedwarn (msgid, ap); |
eb711c86 RK |
2148 | va_end (ap); |
2149 | } | |
2150 | ||
2151 | static void | |
ab87f8c8 | 2152 | v_pedwarn_with_decl (decl, msgid, ap) |
4291d9c8 | 2153 | tree decl; |
ab87f8c8 | 2154 | const char *msgid; |
eb711c86 | 2155 | va_list ap; |
4291d9c8 | 2156 | { |
1554cdf5 DE |
2157 | /* We don't want -pedantic-errors to cause the compilation to fail from |
2158 | "errors" in system header files. Sometimes fixincludes can't fix what's | |
2159 | broken (eg: unsigned char bitfields - fixing it may change the alignment | |
2160 | which will cause programs to mysteriously fail because the C library | |
22d74562 DE |
2161 | or kernel uses the original layout). There's no point in issuing a |
2162 | warning either, it's just unnecessary noise. */ | |
1554cdf5 | 2163 | |
22d74562 DE |
2164 | if (! DECL_IN_SYSTEM_HEADER (decl)) |
2165 | { | |
2166 | if (flag_pedantic_errors) | |
ab87f8c8 | 2167 | v_error_with_decl (decl, msgid, ap); |
22d74562 | 2168 | else |
ab87f8c8 | 2169 | v_warning_with_decl (decl, msgid, ap); |
22d74562 | 2170 | } |
4291d9c8 RS |
2171 | } |
2172 | ||
2173 | void | |
ab87f8c8 | 2174 | pedwarn_with_decl VPROTO((tree decl, const char *msgid, ...)) |
eb711c86 | 2175 | { |
5148a72b | 2176 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 2177 | tree decl; |
ab87f8c8 | 2178 | const char *msgid; |
e0e2a8da RK |
2179 | #endif |
2180 | va_list ap; | |
eb711c86 | 2181 | |
ab87f8c8 | 2182 | VA_START (ap, msgid); |
e0e2a8da | 2183 | |
5148a72b | 2184 | #ifndef ANSI_PROTOTYPES |
eb711c86 | 2185 | decl = va_arg (ap, tree); |
ab87f8c8 | 2186 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2187 | #endif |
2188 | ||
ab87f8c8 | 2189 | v_pedwarn_with_decl (decl, msgid, ap); |
eb711c86 RK |
2190 | va_end (ap); |
2191 | } | |
2192 | ||
2193 | static void | |
ab87f8c8 | 2194 | v_pedwarn_with_file_and_line (file, line, msgid, ap) |
87e11268 | 2195 | const char *file; |
4291d9c8 | 2196 | int line; |
ab87f8c8 | 2197 | const char *msgid; |
eb711c86 | 2198 | va_list ap; |
4291d9c8 RS |
2199 | { |
2200 | if (flag_pedantic_errors) | |
ab87f8c8 | 2201 | v_error_with_file_and_line (file, line, msgid, ap); |
4291d9c8 | 2202 | else |
ab87f8c8 | 2203 | v_warning_with_file_and_line (file, line, msgid, ap); |
4291d9c8 RS |
2204 | } |
2205 | ||
4291d9c8 | 2206 | void |
87e11268 | 2207 | pedwarn_with_file_and_line VPROTO((const char *file, int line, |
ab87f8c8 | 2208 | const char *msgid, ...)) |
eb711c86 | 2209 | { |
5148a72b | 2210 | #ifndef ANSI_PROTOTYPES |
87e11268 | 2211 | const char *file; |
eb711c86 | 2212 | int line; |
ab87f8c8 | 2213 | const char *msgid; |
e0e2a8da RK |
2214 | #endif |
2215 | va_list ap; | |
eb711c86 | 2216 | |
ab87f8c8 | 2217 | VA_START (ap, msgid); |
e0e2a8da | 2218 | |
5148a72b | 2219 | #ifndef ANSI_PROTOTYPES |
87e11268 | 2220 | file = va_arg (ap, const char *); |
eb711c86 | 2221 | line = va_arg (ap, int); |
ab87f8c8 | 2222 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2223 | #endif |
2224 | ||
ab87f8c8 | 2225 | v_pedwarn_with_file_and_line (file, line, msgid, ap); |
eb711c86 RK |
2226 | va_end (ap); |
2227 | } | |
2228 | ||
2229 | /* Apologize for not implementing some feature. */ | |
2230 | ||
2231 | static void | |
ab87f8c8 JL |
2232 | vsorry (msgid, ap) |
2233 | const char *msgid; | |
eb711c86 | 2234 | va_list ap; |
4291d9c8 RS |
2235 | { |
2236 | sorrycount++; | |
2237 | if (input_filename) | |
2238 | fprintf (stderr, "%s:%d: ", input_filename, lineno); | |
2239 | else | |
2240 | fprintf (stderr, "%s: ", progname); | |
ab87f8c8 JL |
2241 | notice ("sorry, not implemented: "); |
2242 | vnotice (stderr, msgid, ap); | |
eb711c86 RK |
2243 | fputc ('\n', stderr); |
2244 | } | |
4291d9c8 | 2245 | |
eb711c86 | 2246 | void |
ab87f8c8 | 2247 | sorry VPROTO((const char *msgid, ...)) |
eb711c86 | 2248 | { |
5148a72b | 2249 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 2250 | const char *msgid; |
e0e2a8da RK |
2251 | #endif |
2252 | va_list ap; | |
2253 | ||
ab87f8c8 | 2254 | VA_START (ap, msgid); |
eb711c86 | 2255 | |
5148a72b | 2256 | #ifndef ANSI_PROTOTYPES |
ab87f8c8 | 2257 | msgid = va_arg (ap, const char *); |
e0e2a8da RK |
2258 | #endif |
2259 | ||
ab87f8c8 | 2260 | vsorry (msgid, ap); |
eb711c86 RK |
2261 | va_end (ap); |
2262 | } | |
4291d9c8 | 2263 | \f |
4291d9c8 RS |
2264 | |
2265 | /* This calls abort and is used to avoid problems when abort if a macro. | |
2266 | It is used when we need to pass the address of abort. */ | |
2267 | ||
2268 | void | |
2269 | do_abort () | |
2270 | { | |
2271 | abort (); | |
2272 | } | |
2273 | ||
2274 | /* When `malloc.c' is compiled with `rcheck' defined, | |
2275 | it calls this function to report clobberage. */ | |
2276 | ||
2277 | void | |
2278 | botch (s) | |
87e11268 | 2279 | const char * s ATTRIBUTE_UNUSED; |
4291d9c8 RS |
2280 | { |
2281 | abort (); | |
2282 | } | |
2283 | ||
2284 | /* Same as `malloc' but report error if no memory available. */ | |
2285 | ||
2778b98d | 2286 | PTR |
4291d9c8 | 2287 | xmalloc (size) |
2778b98d | 2288 | size_t size; |
4291d9c8 | 2289 | { |
2778b98d | 2290 | register PTR value; |
848205e6 MM |
2291 | |
2292 | if (size == 0) | |
2293 | size = 1; | |
2294 | ||
2778b98d | 2295 | value = (PTR) malloc (size); |
848205e6 MM |
2296 | if (value == 0) |
2297 | fatal ("virtual memory exhausted"); | |
2298 | return value; | |
2299 | } | |
2300 | ||
2301 | /* Same as `calloc' but report error if no memory available. */ | |
2302 | ||
2778b98d | 2303 | PTR |
848205e6 | 2304 | xcalloc (size1, size2) |
2778b98d | 2305 | size_t size1, size2; |
848205e6 | 2306 | { |
2778b98d | 2307 | register PTR value; |
848205e6 MM |
2308 | |
2309 | if (size1 == 0 || size2 == 0) | |
2310 | size1 = size2 = 1; | |
2311 | ||
2778b98d | 2312 | value = (PTR) calloc (size1, size2); |
848205e6 | 2313 | if (value == 0) |
4291d9c8 RS |
2314 | fatal ("virtual memory exhausted"); |
2315 | return value; | |
2316 | } | |
2317 | ||
848205e6 | 2318 | |
e9a25f70 JL |
2319 | /* Same as `realloc' but report error if no memory available. |
2320 | Also handle null PTR even if the vendor realloc gets it wrong. */ | |
4291d9c8 | 2321 | |
2778b98d | 2322 | PTR |
4291d9c8 | 2323 | xrealloc (ptr, size) |
2778b98d KG |
2324 | PTR ptr; |
2325 | size_t size; | |
4291d9c8 | 2326 | { |
2778b98d | 2327 | register PTR result; |
848205e6 MM |
2328 | |
2329 | if (size == 0) | |
2330 | size = 1; | |
2331 | ||
2778b98d | 2332 | result = (ptr ? (PTR) realloc (ptr, size) : (PTR) malloc (size)); |
848205e6 | 2333 | |
4291d9c8 RS |
2334 | if (!result) |
2335 | fatal ("virtual memory exhausted"); | |
848205e6 | 2336 | |
4291d9c8 RS |
2337 | return result; |
2338 | } | |
3e386b9e RK |
2339 | |
2340 | /* Same as `strdup' but report error if no memory available. */ | |
2341 | ||
2342 | char * | |
2343 | xstrdup (s) | |
2778b98d | 2344 | register const char *s; |
3e386b9e RK |
2345 | { |
2346 | register char *result = (char *) malloc (strlen (s) + 1); | |
2347 | ||
2348 | if (! result) | |
2349 | fatal ("virtual memory exhausted"); | |
2350 | strcpy (result, s); | |
2351 | return result; | |
2352 | } | |
4291d9c8 RS |
2353 | \f |
2354 | /* Return the logarithm of X, base 2, considering X unsigned, | |
37366632 RK |
2355 | if X is a power of 2. Otherwise, returns -1. |
2356 | ||
2357 | This should be used via the `exact_log2' macro. */ | |
4291d9c8 RS |
2358 | |
2359 | int | |
37366632 RK |
2360 | exact_log2_wide (x) |
2361 | register unsigned HOST_WIDE_INT x; | |
4291d9c8 RS |
2362 | { |
2363 | register int log = 0; | |
2364 | /* Test for 0 or a power of 2. */ | |
2365 | if (x == 0 || x != (x & -x)) | |
2366 | return -1; | |
2367 | while ((x >>= 1) != 0) | |
2368 | log++; | |
2369 | return log; | |
2370 | } | |
2371 | ||
2372 | /* Given X, an unsigned number, return the largest int Y such that 2**Y <= X. | |
37366632 RK |
2373 | If X is 0, return -1. |
2374 | ||
2375 | This should be used via the floor_log2 macro. */ | |
4291d9c8 RS |
2376 | |
2377 | int | |
37366632 RK |
2378 | floor_log2_wide (x) |
2379 | register unsigned HOST_WIDE_INT x; | |
4291d9c8 RS |
2380 | { |
2381 | register int log = -1; | |
2382 | while (x != 0) | |
2383 | log++, | |
2384 | x >>= 1; | |
2385 | return log; | |
2386 | } | |
2387 | ||
3bbfa296 | 2388 | static int float_handler_set; |
4291d9c8 RS |
2389 | int float_handled; |
2390 | jmp_buf float_handler; | |
2391 | ||
3bbfa296 RK |
2392 | /* Signals actually come here. */ |
2393 | ||
2394 | static void | |
2395 | float_signal (signo) | |
2396 | /* If this is missing, some compilers complain. */ | |
d6f4ec51 | 2397 | int signo ATTRIBUTE_UNUSED; |
3bbfa296 RK |
2398 | { |
2399 | if (float_handled == 0) | |
2400 | abort (); | |
2401 | #if defined (USG) || defined (hpux) | |
2402 | signal (SIGFPE, float_signal); /* re-enable the signal catcher */ | |
2403 | #endif | |
2404 | float_handled = 0; | |
2405 | signal (SIGFPE, float_signal); | |
2406 | longjmp (float_handler, 1); | |
2407 | } | |
2408 | ||
4291d9c8 RS |
2409 | /* Specify where to longjmp to when a floating arithmetic error happens. |
2410 | If HANDLER is 0, it means don't handle the errors any more. */ | |
2411 | ||
2412 | void | |
2413 | set_float_handler (handler) | |
2414 | jmp_buf handler; | |
2415 | { | |
2416 | float_handled = (handler != 0); | |
2417 | if (handler) | |
4c9a05bc | 2418 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); |
3bbfa296 RK |
2419 | |
2420 | if (float_handled && ! float_handler_set) | |
2421 | { | |
2422 | signal (SIGFPE, float_signal); | |
2423 | float_handler_set = 1; | |
2424 | } | |
4291d9c8 RS |
2425 | } |
2426 | ||
1a87eea2 KG |
2427 | /* This is a wrapper function for code which might elicit an |
2428 | arithmetic exception. That code should be passed in as a function | |
2429 | pointer FN, and one argument DATA. DATA is usually a struct which | |
2430 | contains the real input and output for function FN. This function | |
2431 | returns 0 (failure) if longjmp was called (i.e. an exception | |
2432 | occured.) It returns 1 (success) otherwise. */ | |
2433 | ||
2434 | int | |
2435 | do_float_handler (fn, data) | |
2436 | void (*fn) PROTO ((PTR)); | |
2437 | PTR data; | |
2438 | { | |
2439 | jmp_buf buf; | |
2440 | ||
2441 | if (setjmp (buf)) | |
2442 | { | |
2443 | /* We got here via longjmp() caused by an exception in function fn() */ | |
2444 | set_float_handler (NULL); | |
2445 | return 0; | |
2446 | } | |
2447 | ||
2448 | set_float_handler (buf); | |
2449 | (*fn)(data); | |
2450 | set_float_handler (NULL); | |
2451 | return 1; | |
2452 | } | |
2453 | ||
bff4b641 RS |
2454 | /* Specify, in HANDLER, where to longjmp to when a floating arithmetic |
2455 | error happens, pushing the previous specification into OLD_HANDLER. | |
2456 | Return an indication of whether there was a previous handler in effect. */ | |
2457 | ||
2458 | int | |
2459 | push_float_handler (handler, old_handler) | |
dc2b15dc | 2460 | jmp_buf handler, old_handler; |
bff4b641 RS |
2461 | { |
2462 | int was_handled = float_handled; | |
2463 | ||
2464 | float_handled = 1; | |
2465 | if (was_handled) | |
7e2231e7 | 2466 | memcpy ((char *) old_handler, (char *) float_handler, |
4c9a05bc RK |
2467 | sizeof (float_handler)); |
2468 | ||
7e2231e7 | 2469 | memcpy ((char *) float_handler, (char *) handler, sizeof (float_handler)); |
bff4b641 RS |
2470 | return was_handled; |
2471 | } | |
2472 | ||
2473 | /* Restore the previous specification of whether and where to longjmp to | |
2474 | when a floating arithmetic error happens. */ | |
2475 | ||
2476 | void | |
2477 | pop_float_handler (handled, handler) | |
2478 | int handled; | |
2479 | jmp_buf handler; | |
2480 | { | |
2481 | float_handled = handled; | |
2482 | if (handled) | |
4c9a05bc | 2483 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); |
bff4b641 RS |
2484 | } |
2485 | ||
4291d9c8 RS |
2486 | /* Handler for SIGPIPE. */ |
2487 | ||
2488 | static void | |
2489 | pipe_closed (signo) | |
2490 | /* If this is missing, some compilers complain. */ | |
d6f4ec51 | 2491 | int signo ATTRIBUTE_UNUSED; |
4291d9c8 RS |
2492 | { |
2493 | fatal ("output pipe has been closed"); | |
2494 | } | |
2495 | ||
2496 | /* Strip off a legitimate source ending from the input string NAME of | |
c62bdc79 | 2497 | length LEN. Rather than having to know the names used by all of |
2290e0ec PB |
2498 | our front ends, we strip off an ending of a period followed by |
2499 | up to five characters. (Java uses ".class".) */ | |
4291d9c8 RS |
2500 | |
2501 | void | |
2502 | strip_off_ending (name, len) | |
2503 | char *name; | |
2504 | int len; | |
2505 | { | |
2290e0ec PB |
2506 | int i; |
2507 | for (i = 2; i < 6 && len > i; i++) | |
2508 | { | |
2509 | if (name[len - i] == '.') | |
2510 | { | |
2511 | name[len - i] = '\0'; | |
2512 | break; | |
2513 | } | |
2514 | } | |
4291d9c8 RS |
2515 | } |
2516 | ||
7dce5088 | 2517 | /* Output a quoted string. */ |
0f41302f | 2518 | |
7dce5088 PE |
2519 | void |
2520 | output_quoted_string (asm_file, string) | |
2521 | FILE *asm_file; | |
87e11268 | 2522 | const char *string; |
7dce5088 | 2523 | { |
e9a25f70 JL |
2524 | #ifdef OUTPUT_QUOTED_STRING |
2525 | OUTPUT_QUOTED_STRING (asm_file, string); | |
2526 | #else | |
7dce5088 PE |
2527 | char c; |
2528 | ||
2529 | putc ('\"', asm_file); | |
2530 | while ((c = *string++) != 0) | |
2531 | { | |
2532 | if (c == '\"' || c == '\\') | |
2533 | putc ('\\', asm_file); | |
2534 | putc (c, asm_file); | |
2535 | } | |
2536 | putc ('\"', asm_file); | |
e9a25f70 | 2537 | #endif |
7dce5088 PE |
2538 | } |
2539 | ||
4291d9c8 RS |
2540 | /* Output a file name in the form wanted by System V. */ |
2541 | ||
2542 | void | |
2543 | output_file_directive (asm_file, input_name) | |
2544 | FILE *asm_file; | |
87e11268 | 2545 | const char *input_name; |
4291d9c8 RS |
2546 | { |
2547 | int len = strlen (input_name); | |
87e11268 | 2548 | const char *na = input_name + len; |
4291d9c8 RS |
2549 | |
2550 | /* NA gets INPUT_NAME sans directory names. */ | |
2551 | while (na > input_name) | |
2552 | { | |
73532e43 JL |
2553 | if (na[-1] == '/') |
2554 | break; | |
2555 | #ifdef DIR_SEPARATOR | |
fed3e408 | 2556 | if (na[-1] == DIR_SEPARATOR) |
4291d9c8 | 2557 | break; |
73532e43 | 2558 | #endif |
4291d9c8 RS |
2559 | na--; |
2560 | } | |
2561 | ||
2562 | #ifdef ASM_OUTPUT_MAIN_SOURCE_FILENAME | |
2563 | ASM_OUTPUT_MAIN_SOURCE_FILENAME (asm_file, na); | |
2564 | #else | |
2565 | #ifdef ASM_OUTPUT_SOURCE_FILENAME | |
2566 | ASM_OUTPUT_SOURCE_FILENAME (asm_file, na); | |
2567 | #else | |
7dce5088 PE |
2568 | fprintf (asm_file, "\t.file\t"); |
2569 | output_quoted_string (asm_file, na); | |
2570 | fputc ('\n', asm_file); | |
4291d9c8 RS |
2571 | #endif |
2572 | #endif | |
2573 | } | |
2574 | \f | |
444bf316 | 2575 | #ifdef ASM_IDENTIFY_LANGUAGE |
0f41302f | 2576 | /* Routine to build language identifier for object file. */ |
d0d4af87 MS |
2577 | static void |
2578 | output_lang_identify (asm_out_file) | |
2579 | FILE *asm_out_file; | |
2580 | { | |
2581 | int len = strlen (lang_identify ()) + sizeof ("__gnu_compiled_") + 1; | |
2582 | char *s = (char *) alloca (len); | |
2583 | sprintf (s, "__gnu_compiled_%s", lang_identify ()); | |
2584 | ASM_OUTPUT_LABEL (asm_out_file, s); | |
2585 | } | |
444bf316 | 2586 | #endif |
d0d4af87 | 2587 | |
dfe1a916 | 2588 | /* Routine to open a dump file. */ |
032713aa NC |
2589 | static void |
2590 | open_dump_file (suffix, function_name) | |
87e11268 KG |
2591 | const char *suffix; |
2592 | const char *function_name; | |
032713aa NC |
2593 | { |
2594 | char *dumpname; | |
0f41302f | 2595 | |
032713aa NC |
2596 | TIMEVAR |
2597 | (dump_time, | |
2598 | { | |
2599 | dumpname = (char *) xmalloc (strlen (dump_base_name) + strlen (suffix) + 1); | |
2600 | ||
2601 | if (rtl_dump_file != NULL) | |
2602 | fclose (rtl_dump_file); | |
2603 | ||
2604 | strcpy (dumpname, dump_base_name); | |
2605 | strcat (dumpname, suffix); | |
2606 | ||
2607 | rtl_dump_file = fopen (dumpname, "a"); | |
2608 | ||
2609 | if (rtl_dump_file == NULL) | |
2610 | pfatal_with_name (dumpname); | |
2611 | ||
2612 | free (dumpname); | |
2613 | ||
2614 | if (function_name) | |
2615 | fprintf (rtl_dump_file, "\n;; Function %s\n\n", function_name); | |
2616 | }); | |
2617 | ||
2618 | return; | |
2619 | } | |
2620 | ||
2621 | /* Routine to close a dump file. */ | |
2622 | static void | |
2623 | close_dump_file (func, insns) | |
eed90b2c | 2624 | void (*func) PROTO ((FILE *, rtx)); |
032713aa NC |
2625 | rtx insns; |
2626 | { | |
2627 | TIMEVAR | |
2628 | (dump_time, | |
2629 | { | |
2630 | if (func) | |
2631 | func (rtl_dump_file, insns); | |
2632 | ||
2633 | fflush (rtl_dump_file); | |
2634 | fclose (rtl_dump_file); | |
2635 | ||
2636 | rtl_dump_file = NULL; | |
2637 | }); | |
2638 | ||
2639 | return; | |
2640 | } | |
2641 | ||
2642 | /* Routine to dump rtl into a file. */ | |
2643 | static void | |
2644 | dump_rtl (suffix, decl, func, insns) | |
87e11268 | 2645 | const char *suffix; |
032713aa | 2646 | tree decl; |
eed90b2c | 2647 | void (*func) PROTO ((FILE *, rtx)); |
032713aa | 2648 | rtx insns; |
dfe1a916 | 2649 | { |
032713aa NC |
2650 | open_dump_file (suffix, decl_printable_name (decl, 2)); |
2651 | close_dump_file (func, insns); | |
2652 | } | |
2653 | ||
2654 | /* Routine to empty a dump file. */ | |
2655 | static void | |
2656 | clean_dump_file (suffix) | |
87e11268 | 2657 | const char *suffix; |
032713aa | 2658 | { |
6f4d7222 | 2659 | char *dumpname; |
dfe1a916 | 2660 | |
032713aa NC |
2661 | dumpname = (char *) xmalloc (strlen (dump_base_name) + strlen (suffix) + 1); |
2662 | ||
2663 | strcpy (dumpname, dump_base_name); | |
dfe1a916 | 2664 | strcat (dumpname, suffix); |
032713aa NC |
2665 | |
2666 | rtl_dump_file = fopen (dumpname, "w"); | |
2667 | ||
2668 | if (rtl_dump_file == NULL) | |
2669 | pfatal_with_name (dumpname); | |
2670 | ||
2671 | free (dumpname); | |
2672 | ||
2673 | fclose (rtl_dump_file); | |
2674 | rtl_dump_file = NULL; | |
2675 | ||
2676 | return; | |
dfe1a916 DE |
2677 | } |
2678 | ||
32291f94 MM |
2679 | /* Do any final processing required for the declarations in VEC, of |
2680 | which there are LEN. We write out inline functions and variables | |
2681 | that have been deferred until this point, but which are required. | |
2682 | Returns non-zero if anything was put out. */ | |
2683 | int | |
2684 | wrapup_global_declarations (vec, len) | |
2685 | tree *vec; | |
2686 | int len; | |
2687 | { | |
2688 | tree decl; | |
2689 | int i; | |
2690 | int reconsider; | |
2691 | int output_something = 0; | |
2692 | ||
2693 | for (i = 0; i < len; i++) | |
2694 | { | |
2695 | decl = vec[i]; | |
2696 | ||
2697 | /* We're not deferring this any longer. */ | |
2698 | DECL_DEFER_OUTPUT (decl) = 0; | |
2699 | ||
2700 | if (TREE_CODE (decl) == VAR_DECL && DECL_SIZE (decl) == 0 | |
2701 | && incomplete_decl_finalize_hook != 0) | |
2702 | (*incomplete_decl_finalize_hook) (decl); | |
2703 | } | |
2704 | ||
2705 | /* Now emit any global variables or functions that we have been | |
2706 | putting off. We need to loop in case one of the things emitted | |
2707 | here references another one which comes earlier in the list. */ | |
2708 | do | |
2709 | { | |
2710 | reconsider = 0; | |
2711 | for (i = 0; i < len; i++) | |
2712 | { | |
2713 | decl = vec[i]; | |
2714 | ||
2715 | if (TREE_ASM_WRITTEN (decl) || DECL_EXTERNAL (decl)) | |
2716 | continue; | |
2717 | ||
2718 | /* Don't write out static consts, unless we still need them. | |
2719 | ||
2720 | We also keep static consts if not optimizing (for debugging), | |
2721 | unless the user specified -fno-keep-static-consts. | |
2722 | ??? They might be better written into the debug information. | |
2723 | This is possible when using DWARF. | |
2724 | ||
2725 | A language processor that wants static constants to be always | |
2726 | written out (even if it is not used) is responsible for | |
2727 | calling rest_of_decl_compilation itself. E.g. the C front-end | |
2728 | calls rest_of_decl_compilation from finish_decl. | |
2729 | One motivation for this is that is conventional in some | |
2730 | environments to write things like: | |
2731 | static const char rcsid[] = "... version string ..."; | |
2732 | intending to force the string to be in the executable. | |
2733 | ||
2734 | A language processor that would prefer to have unneeded | |
2735 | static constants "optimized away" would just defer writing | |
2736 | them out until here. E.g. C++ does this, because static | |
2737 | constants are often defined in header files. | |
2738 | ||
2739 | ??? A tempting alternative (for both C and C++) would be | |
2740 | to force a constant to be written if and only if it is | |
2741 | defined in a main file, as opposed to an include file. */ | |
2742 | ||
2743 | if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) | |
2744 | && (! TREE_READONLY (decl) | |
2745 | || TREE_PUBLIC (decl) | |
2746 | || (!optimize && flag_keep_static_consts) | |
2747 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) | |
2748 | { | |
2749 | reconsider = 1; | |
2750 | rest_of_decl_compilation (decl, NULL_PTR, 1, 1); | |
2751 | } | |
2752 | ||
2753 | if (TREE_CODE (decl) == FUNCTION_DECL | |
2754 | && DECL_INITIAL (decl) != 0 | |
2755 | && DECL_SAVED_INSNS (decl) != 0 | |
2756 | && (flag_keep_inline_functions | |
59182242 | 2757 | || (TREE_PUBLIC (decl) && !DECL_COMDAT (decl)) |
32291f94 MM |
2758 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) |
2759 | { | |
2760 | reconsider = 1; | |
2761 | temporary_allocation (); | |
2762 | output_inline_function (decl); | |
2763 | permanent_allocation (1); | |
2764 | } | |
2765 | } | |
2766 | ||
2767 | if (reconsider) | |
2768 | output_something = 1; | |
2769 | } | |
2770 | while (reconsider); | |
2771 | ||
2772 | return output_something; | |
2773 | } | |
2774 | ||
2775 | /* Issue appropriate warnings for the global declarations in VEC (of | |
2776 | which there are LEN). Output debugging information for them. */ | |
2777 | void | |
2778 | check_global_declarations (vec, len) | |
2779 | tree *vec; | |
2780 | int len; | |
2781 | { | |
2782 | tree decl; | |
2783 | int i; | |
2784 | ||
2785 | for (i = 0; i < len; i++) | |
2786 | { | |
2787 | decl = vec[i]; | |
2788 | ||
2789 | if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) | |
2790 | && ! TREE_ASM_WRITTEN (decl)) | |
2791 | /* Cancel the RTL for this decl so that, if debugging info | |
2792 | output for global variables is still to come, | |
2793 | this one will be omitted. */ | |
2794 | DECL_RTL (decl) = NULL; | |
2795 | ||
2796 | /* Warn about any function | |
2797 | declared static but not defined. | |
2798 | We don't warn about variables, | |
2799 | because many programs have static variables | |
2800 | that exist only to get some text into the object file. */ | |
2801 | if (TREE_CODE (decl) == FUNCTION_DECL | |
2802 | && (warn_unused | |
2803 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))) | |
2804 | && DECL_INITIAL (decl) == 0 | |
2805 | && DECL_EXTERNAL (decl) | |
2806 | && ! DECL_ARTIFICIAL (decl) | |
2807 | && ! TREE_PUBLIC (decl)) | |
2808 | { | |
2809 | if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))) | |
2810 | pedwarn_with_decl (decl, | |
2811 | "`%s' used but never defined"); | |
2812 | else | |
2813 | warning_with_decl (decl, | |
2814 | "`%s' declared `static' but never defined"); | |
2815 | /* This symbol is effectively an "extern" declaration now. */ | |
2816 | TREE_PUBLIC (decl) = 1; | |
2817 | assemble_external (decl); | |
2818 | } | |
2819 | ||
2820 | /* Warn about static fns or vars defined but not used, | |
2821 | but not about inline functions or static consts | |
2822 | since defining those in header files is normal practice. */ | |
2823 | if (warn_unused | |
2824 | && ((TREE_CODE (decl) == FUNCTION_DECL && ! DECL_INLINE (decl)) | |
2825 | || (TREE_CODE (decl) == VAR_DECL && ! TREE_READONLY (decl))) | |
2826 | && ! DECL_IN_SYSTEM_HEADER (decl) | |
2827 | && ! DECL_EXTERNAL (decl) | |
2828 | && ! TREE_PUBLIC (decl) | |
2829 | && ! TREE_USED (decl) | |
2830 | && (TREE_CODE (decl) == FUNCTION_DECL || ! DECL_REGISTER (decl)) | |
2831 | /* The TREE_USED bit for file-scope decls | |
2832 | is kept in the identifier, to handle multiple | |
2833 | external decls in different scopes. */ | |
2834 | && ! TREE_USED (DECL_NAME (decl))) | |
2835 | warning_with_decl (decl, "`%s' defined but not used"); | |
2836 | ||
2837 | #ifdef SDB_DEBUGGING_INFO | |
2838 | /* The COFF linker can move initialized global vars to the end. | |
2839 | And that can screw up the symbol ordering. | |
2840 | By putting the symbols in that order to begin with, | |
2841 | we avoid a problem. mcsun!unido!fauern!tumuc!pes@uunet.uu.net. */ | |
2842 | if (write_symbols == SDB_DEBUG && TREE_CODE (decl) == VAR_DECL | |
2843 | && TREE_PUBLIC (decl) && DECL_INITIAL (decl) | |
2844 | && ! DECL_EXTERNAL (decl) | |
2845 | && DECL_RTL (decl) != 0) | |
2846 | TIMEVAR (symout_time, sdbout_symbol (decl, 0)); | |
2847 | ||
2848 | /* Output COFF information for non-global | |
2849 | file-scope initialized variables. */ | |
2850 | if (write_symbols == SDB_DEBUG | |
2851 | && TREE_CODE (decl) == VAR_DECL | |
2852 | && DECL_INITIAL (decl) | |
2853 | && ! DECL_EXTERNAL (decl) | |
2854 | && DECL_RTL (decl) != 0 | |
2855 | && GET_CODE (DECL_RTL (decl)) == MEM) | |
2856 | TIMEVAR (symout_time, sdbout_toplevel_data (decl)); | |
2857 | #endif /* SDB_DEBUGGING_INFO */ | |
2858 | #ifdef DWARF_DEBUGGING_INFO | |
2859 | /* Output DWARF information for file-scope tentative data object | |
2860 | declarations, file-scope (extern) function declarations (which | |
2861 | had no corresponding body) and file-scope tagged type declarations | |
2862 | and definitions which have not yet been forced out. */ | |
2863 | ||
2864 | if (write_symbols == DWARF_DEBUG | |
2865 | && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl))) | |
2866 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 1)); | |
2867 | #endif | |
2868 | #ifdef DWARF2_DEBUGGING_INFO | |
2869 | /* Output DWARF2 information for file-scope tentative data object | |
2870 | declarations, file-scope (extern) function declarations (which | |
2871 | had no corresponding body) and file-scope tagged type declarations | |
2872 | and definitions which have not yet been forced out. */ | |
2873 | ||
2874 | if (write_symbols == DWARF2_DEBUG | |
2875 | && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl))) | |
2876 | TIMEVAR (symout_time, dwarf2out_decl (decl)); | |
2877 | #endif | |
2878 | } | |
2879 | } | |
032713aa | 2880 | |
4291d9c8 RS |
2881 | /* Compile an entire file of output from cpp, named NAME. |
2882 | Write a file of assembly output and various debugging dumps. */ | |
2883 | ||
2884 | static void | |
2885 | compile_file (name) | |
2886 | char *name; | |
2887 | { | |
2888 | tree globals; | |
2889 | int start_time; | |
4291d9c8 RS |
2890 | |
2891 | int name_specified = name != 0; | |
2892 | ||
2893 | if (dump_base_name == 0) | |
2894 | dump_base_name = name ? name : "gccdump"; | |
4291d9c8 RS |
2895 | |
2896 | parse_time = 0; | |
2897 | varconst_time = 0; | |
2898 | integration_time = 0; | |
2899 | jump_time = 0; | |
2900 | cse_time = 0; | |
7506f491 | 2901 | gcse_time = 0; |
4291d9c8 RS |
2902 | loop_time = 0; |
2903 | cse2_time = 0; | |
0d332add | 2904 | branch_prob_time = 0; |
4291d9c8 RS |
2905 | flow_time = 0; |
2906 | combine_time = 0; | |
8c660648 | 2907 | regmove_time = 0; |
4291d9c8 RS |
2908 | sched_time = 0; |
2909 | local_alloc_time = 0; | |
2910 | global_alloc_time = 0; | |
e881bb1b | 2911 | flow2_time = 0; |
4291d9c8 | 2912 | sched2_time = 0; |
bd334356 | 2913 | #ifdef DELAY_SLOTS |
4291d9c8 | 2914 | dbr_sched_time = 0; |
bd334356 | 2915 | #endif |
4291d9c8 RS |
2916 | shorten_branch_time = 0; |
2917 | stack_reg_time = 0; | |
2918 | final_time = 0; | |
2919 | symout_time = 0; | |
2920 | dump_time = 0; | |
2921 | ||
4291d9c8 RS |
2922 | /* Initialize data in various passes. */ |
2923 | ||
2924 | init_obstacks (); | |
2925 | init_tree_codes (); | |
5c60e5c0 | 2926 | name = init_parse (name); |
4291d9c8 | 2927 | init_emit_once (debug_info_level == DINFO_LEVEL_NORMAL |
0d332add | 2928 | || debug_info_level == DINFO_LEVEL_VERBOSE |
312f6255 GK |
2929 | || flag_test_coverage |
2930 | || warn_notreached); | |
7f21d440 | 2931 | init_regs (); |
4291d9c8 RS |
2932 | init_decl_processing (); |
2933 | init_optabs (); | |
2934 | init_stmt (); | |
4291d9c8 RS |
2935 | init_loop (); |
2936 | init_reload (); | |
6e73e666 | 2937 | init_alias_once (); |
87ff9c8e | 2938 | init_function_once (); |
4291d9c8 | 2939 | |
49ad7cfa BS |
2940 | /* The following initialization functions need to generate rtl, so |
2941 | provide a dummy function context for them. */ | |
2942 | init_dummy_function_start (); | |
2943 | init_expmed (); | |
2944 | init_expr_once (); | |
4291d9c8 RS |
2945 | if (flag_caller_saves) |
2946 | init_caller_save (); | |
49ad7cfa | 2947 | expand_dummy_function_end (); |
4291d9c8 | 2948 | |
f246a305 RS |
2949 | /* If auxiliary info generation is desired, open the output file. |
2950 | This goes in the same directory as the source file--unlike | |
2951 | all the other output files. */ | |
4291d9c8 RS |
2952 | if (flag_gen_aux_info) |
2953 | { | |
4291d9c8 RS |
2954 | aux_info_file = fopen (aux_info_file_name, "w"); |
2955 | if (aux_info_file == 0) | |
2956 | pfatal_with_name (aux_info_file_name); | |
2957 | } | |
2958 | ||
735a0e33 | 2959 | /* Clear the dump files. */ |
4291d9c8 | 2960 | if (rtl_dump) |
032713aa | 2961 | clean_dump_file (".rtl"); |
4291d9c8 | 2962 | if (jump_opt_dump) |
735a0e33 UD |
2963 | { |
2964 | clean_dump_file (".jump"); | |
2965 | if (graph_dump_format != no_graph) | |
2966 | clean_graph_dump_file (dump_base_name, ".jump"); | |
2967 | } | |
e9a25f70 | 2968 | if (addressof_dump) |
735a0e33 UD |
2969 | { |
2970 | clean_dump_file (".addressof"); | |
2971 | if (graph_dump_format != no_graph) | |
2972 | clean_graph_dump_file (dump_base_name, ".addressof"); | |
2973 | } | |
4291d9c8 | 2974 | if (cse_dump) |
735a0e33 UD |
2975 | { |
2976 | clean_dump_file (".cse"); | |
2977 | if (graph_dump_format != no_graph) | |
2978 | clean_graph_dump_file (dump_base_name, ".cse"); | |
2979 | } | |
4291d9c8 | 2980 | if (loop_dump) |
735a0e33 UD |
2981 | { |
2982 | clean_dump_file (".loop"); | |
2983 | if (graph_dump_format != no_graph) | |
2984 | clean_graph_dump_file (dump_base_name, ".loop"); | |
2985 | } | |
4291d9c8 | 2986 | if (cse2_dump) |
735a0e33 UD |
2987 | { |
2988 | clean_dump_file (".cse2"); | |
2989 | if (graph_dump_format != no_graph) | |
2990 | clean_graph_dump_file (dump_base_name, ".cse2"); | |
2991 | } | |
0d332add | 2992 | if (branch_prob_dump) |
735a0e33 UD |
2993 | { |
2994 | clean_dump_file (".bp"); | |
2995 | if (graph_dump_format != no_graph) | |
2996 | clean_graph_dump_file (dump_base_name, ".bp"); | |
2997 | } | |
4291d9c8 | 2998 | if (flow_dump) |
735a0e33 UD |
2999 | { |
3000 | clean_dump_file (".flow"); | |
3001 | if (graph_dump_format != no_graph) | |
3002 | clean_graph_dump_file (dump_base_name, ".flow"); | |
3003 | } | |
4291d9c8 | 3004 | if (combine_dump) |
735a0e33 UD |
3005 | { |
3006 | clean_dump_file (".combine"); | |
3007 | if (graph_dump_format != no_graph) | |
3008 | clean_graph_dump_file (dump_base_name, ".combine"); | |
3009 | } | |
8c660648 | 3010 | if (regmove_dump) |
735a0e33 UD |
3011 | { |
3012 | clean_dump_file (".regmove"); | |
3013 | if (graph_dump_format != no_graph) | |
3014 | clean_graph_dump_file (dump_base_name, ".regmove"); | |
3015 | } | |
4291d9c8 | 3016 | if (sched_dump) |
735a0e33 UD |
3017 | { |
3018 | clean_dump_file (".sched"); | |
3019 | if (graph_dump_format != no_graph) | |
3020 | clean_graph_dump_file (dump_base_name, ".sched"); | |
3021 | } | |
4291d9c8 | 3022 | if (local_reg_dump) |
735a0e33 UD |
3023 | { |
3024 | clean_dump_file (".lreg"); | |
3025 | if (graph_dump_format != no_graph) | |
3026 | clean_graph_dump_file (dump_base_name, ".lreg"); | |
3027 | } | |
4291d9c8 | 3028 | if (global_reg_dump) |
735a0e33 UD |
3029 | { |
3030 | clean_dump_file (".greg"); | |
3031 | if (graph_dump_format != no_graph) | |
3032 | clean_graph_dump_file (dump_base_name, ".greg"); | |
3033 | } | |
e881bb1b RH |
3034 | if (flow2_dump) |
3035 | { | |
3036 | clean_dump_file (".flow2"); | |
3037 | if (graph_dump_format != no_graph) | |
3038 | clean_graph_dump_file (dump_base_name, ".flow2"); | |
3039 | } | |
ede7cd44 RH |
3040 | if (peephole2_dump) |
3041 | { | |
3042 | clean_dump_file (".peephole2"); | |
3043 | if (graph_dump_format != no_graph) | |
3044 | clean_graph_dump_file (dump_base_name, ".peephole2"); | |
3045 | } | |
4291d9c8 | 3046 | if (sched2_dump) |
735a0e33 UD |
3047 | { |
3048 | clean_dump_file (".sched2"); | |
3049 | if (graph_dump_format != no_graph) | |
3050 | clean_graph_dump_file (dump_base_name, ".sched2"); | |
3051 | } | |
4291d9c8 | 3052 | if (jump2_opt_dump) |
735a0e33 UD |
3053 | { |
3054 | clean_dump_file (".jump2"); | |
3055 | if (graph_dump_format != no_graph) | |
3056 | clean_graph_dump_file (dump_base_name, ".jump2"); | |
3057 | } | |
bd334356 | 3058 | #ifdef DELAY_SLOTS |
4291d9c8 | 3059 | if (dbr_sched_dump) |
735a0e33 UD |
3060 | { |
3061 | clean_dump_file (".dbr"); | |
3062 | if (graph_dump_format != no_graph) | |
3063 | clean_graph_dump_file (dump_base_name, ".dbr"); | |
3064 | } | |
bd334356 | 3065 | #endif |
7506f491 | 3066 | if (gcse_dump) |
735a0e33 UD |
3067 | { |
3068 | clean_dump_file (".gcse"); | |
3069 | if (graph_dump_format != no_graph) | |
3070 | clean_graph_dump_file (dump_base_name, ".gcse"); | |
3071 | } | |
4291d9c8 | 3072 | #ifdef STACK_REGS |
4291d9c8 | 3073 | if (stack_reg_dump) |
735a0e33 UD |
3074 | { |
3075 | clean_dump_file (".stack"); | |
3076 | if (graph_dump_format != no_graph) | |
3077 | clean_graph_dump_file (dump_base_name, ".stack"); | |
3078 | } | |
032713aa NC |
3079 | #endif |
3080 | #ifdef MACHINE_DEPENDENT_REORG | |
3081 | if (mach_dep_reorg_dump) | |
735a0e33 UD |
3082 | { |
3083 | clean_dump_file (".mach"); | |
3084 | if (graph_dump_format != no_graph) | |
3085 | clean_graph_dump_file (dump_base_name, ".mach"); | |
3086 | } | |
4291d9c8 RS |
3087 | #endif |
3088 | ||
3089 | /* Open assembler code output file. */ | |
3090 | ||
1fe65c00 PB |
3091 | if (flag_syntax_only) |
3092 | asm_out_file = NULL; | |
4291d9c8 RS |
3093 | else |
3094 | { | |
1fe65c00 | 3095 | if (! name_specified && asm_file_name == 0) |
4291d9c8 RS |
3096 | asm_out_file = stdout; |
3097 | else | |
1fe65c00 PB |
3098 | { |
3099 | int len = strlen (dump_base_name); | |
3100 | register char *dumpname = (char *) xmalloc (len + 6); | |
3101 | strcpy (dumpname, dump_base_name); | |
3102 | strip_off_ending (dumpname, len); | |
3103 | strcat (dumpname, ".s"); | |
3104 | if (asm_file_name == 0) | |
3105 | { | |
3106 | asm_file_name = (char *) xmalloc (strlen (dumpname) + 1); | |
3107 | strcpy (asm_file_name, dumpname); | |
3108 | } | |
3109 | if (!strcmp (asm_file_name, "-")) | |
3110 | asm_out_file = stdout; | |
3111 | else | |
3112 | asm_out_file = fopen (asm_file_name, "w"); | |
3113 | if (asm_out_file == 0) | |
3114 | pfatal_with_name (asm_file_name); | |
3115 | } | |
4291d9c8 | 3116 | |
f246a305 | 3117 | #ifdef IO_BUFFER_SIZE |
1fe65c00 PB |
3118 | setvbuf (asm_out_file, (char *) xmalloc (IO_BUFFER_SIZE), |
3119 | _IOFBF, IO_BUFFER_SIZE); | |
f246a305 | 3120 | #endif |
1fe65c00 | 3121 | } |
f246a305 | 3122 | |
4291d9c8 RS |
3123 | input_filename = name; |
3124 | ||
18736654 RK |
3125 | /* Put an entry on the input file stack for the main input file. */ |
3126 | input_file_stack | |
3127 | = (struct file_stack *) xmalloc (sizeof (struct file_stack)); | |
3128 | input_file_stack->next = 0; | |
3129 | input_file_stack->name = input_filename; | |
3130 | ||
4291d9c8 RS |
3131 | /* Perform language-specific initialization. |
3132 | This may set main_input_filename. */ | |
3133 | lang_init (); | |
3134 | ||
3135 | /* If the input doesn't start with a #line, use the input name | |
3136 | as the official input file name. */ | |
3137 | if (main_input_filename == 0) | |
3138 | main_input_filename = name; | |
3139 | ||
1fe65c00 PB |
3140 | if (flag_syntax_only) |
3141 | { | |
3142 | write_symbols = NO_DEBUG; | |
3143 | profile_flag = 0; | |
3144 | profile_block_flag = 0; | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | ASM_FILE_START (asm_out_file); | |
3d5cdd42 DE |
3149 | |
3150 | #ifdef ASM_COMMENT_START | |
1fe65c00 PB |
3151 | if (flag_verbose_asm) |
3152 | { | |
3153 | /* Print the list of options in effect. */ | |
3154 | print_version (asm_out_file, ASM_COMMENT_START); | |
3155 | print_switch_values (asm_out_file, 0, MAX_LINE, | |
3d5cdd42 | 3156 | ASM_COMMENT_START, " ", "\n"); |
1fe65c00 PB |
3157 | /* Add a blank line here so it appears in assembler output but not |
3158 | screen output. */ | |
3159 | fprintf (asm_out_file, "\n"); | |
3160 | } | |
b93a436e | 3161 | #endif |
4291d9c8 | 3162 | |
1fe65c00 | 3163 | /* Output something to inform GDB that this compilation was by GCC. */ |
4291d9c8 | 3164 | #ifndef ASM_IDENTIFY_GCC |
1fe65c00 | 3165 | fprintf (asm_out_file, "gcc2_compiled.:\n"); |
4291d9c8 | 3166 | #else |
1fe65c00 | 3167 | ASM_IDENTIFY_GCC (asm_out_file); |
4291d9c8 | 3168 | #endif |
d0d4af87 | 3169 | |
0f41302f | 3170 | /* Output something to identify which front-end produced this file. */ |
d0d4af87 | 3171 | #ifdef ASM_IDENTIFY_LANGUAGE |
1fe65c00 | 3172 | ASM_IDENTIFY_LANGUAGE (asm_out_file); |
d0d4af87 | 3173 | #endif |
1fe65c00 | 3174 | } /* ! flag_syntax_only */ |
d0d4af87 | 3175 | |
cf440348 JL |
3176 | #ifndef ASM_OUTPUT_SECTION_NAME |
3177 | if (flag_function_sections) | |
3178 | { | |
3179 | warning ("-ffunction-sections not supported for this target."); | |
3180 | flag_function_sections = 0; | |
3181 | } | |
257441db CM |
3182 | if (flag_data_sections) |
3183 | { | |
3184 | warning ("-fdata-sections not supported for this target."); | |
3185 | flag_data_sections = 0; | |
3186 | } | |
cf440348 JL |
3187 | #endif |
3188 | ||
3189 | if (flag_function_sections | |
3190 | && (profile_flag || profile_block_flag)) | |
3191 | { | |
3192 | warning ("-ffunction-sections disabled; it makes profiling impossible."); | |
3193 | flag_function_sections = 0; | |
3194 | } | |
3195 | ||
1746404b | 3196 | #ifndef OBJECT_FORMAT_ELF |
cf440348 JL |
3197 | if (flag_function_sections && write_symbols != NO_DEBUG) |
3198 | warning ("-ffunction-sections may affect debugging on some targets."); | |
1746404b | 3199 | #endif |
cf440348 | 3200 | |
b93a436e JL |
3201 | /* ??? Note: There used to be a conditional here |
3202 | to call assemble_zeros without fail if DBX_DEBUGGING_INFO is defined. | |
3203 | This was to guarantee separation between gcc_compiled. and | |
3204 | the first function, for the sake of dbx on Suns. | |
3205 | However, having the extra zero here confused the Emacs | |
3206 | code for unexec, and might confuse other programs too. | |
3207 | Therefore, I took out that change. | |
3208 | In future versions we should find another way to solve | |
3209 | that dbx problem. -- rms, 23 May 93. */ | |
ca695ac9 | 3210 | |
b93a436e JL |
3211 | /* Don't let the first function fall at the same address |
3212 | as gcc_compiled., if profiling. */ | |
3213 | if (profile_flag || profile_block_flag) | |
e5e809f4 JL |
3214 | { |
3215 | /* It's best if we can write a nop here since some | |
3216 | assemblers don't tolerate zeros in the text section. */ | |
3217 | if (insn_template[CODE_FOR_nop] != 0) | |
3218 | output_asm_insn (insn_template[CODE_FOR_nop], NULL_PTR); | |
3219 | else | |
3220 | assemble_zeros (UNITS_PER_WORD); | |
3221 | } | |
4291d9c8 RS |
3222 | |
3223 | /* If dbx symbol table desired, initialize writing it | |
3224 | and output the predefined types. */ | |
f246a305 RS |
3225 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
3226 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
3227 | TIMEVAR (symout_time, dbxout_init (asm_out_file, main_input_filename, |
3228 | getdecls ())); | |
3229 | #endif | |
3230 | #ifdef SDB_DEBUGGING_INFO | |
3231 | if (write_symbols == SDB_DEBUG) | |
3232 | TIMEVAR (symout_time, sdbout_init (asm_out_file, main_input_filename, | |
3233 | getdecls ())); | |
3234 | #endif | |
3235 | #ifdef DWARF_DEBUGGING_INFO | |
3236 | if (write_symbols == DWARF_DEBUG) | |
3237 | TIMEVAR (symout_time, dwarfout_init (asm_out_file, main_input_filename)); | |
3238 | #endif | |
0021b564 JM |
3239 | #ifdef DWARF2_UNWIND_INFO |
3240 | if (dwarf2out_do_frame ()) | |
3241 | dwarf2out_frame_init (); | |
3242 | #endif | |
9a666dda JM |
3243 | #ifdef DWARF2_DEBUGGING_INFO |
3244 | if (write_symbols == DWARF2_DEBUG) | |
3245 | TIMEVAR (symout_time, dwarf2out_init (asm_out_file, main_input_filename)); | |
3246 | #endif | |
4291d9c8 RS |
3247 | |
3248 | /* Initialize yet another pass. */ | |
3249 | ||
b93a436e | 3250 | init_final (main_input_filename); |
0d332add | 3251 | init_branch_prob (dump_base_name); |
4291d9c8 RS |
3252 | |
3253 | start_time = get_run_time (); | |
3254 | ||
3255 | /* Call the parser, which parses the entire file | |
3256 | (calling rest_of_compilation for each function). */ | |
3257 | ||
3258 | if (yyparse () != 0) | |
453dfc78 JW |
3259 | { |
3260 | if (errorcount == 0) | |
ab87f8c8 | 3261 | notice ("Errors detected in input file (your bison.simple is out of date)\n"); |
453dfc78 JW |
3262 | |
3263 | /* In case there were missing closebraces, | |
3264 | get us back to the global binding level. */ | |
3265 | while (! global_bindings_p ()) | |
3266 | poplevel (0, 0, 0); | |
3267 | } | |
4291d9c8 RS |
3268 | |
3269 | /* Compilation is now finished except for writing | |
3270 | what's left of the symbol table output. */ | |
3271 | ||
3272 | parse_time += get_run_time () - start_time; | |
3273 | ||
3274 | parse_time -= integration_time; | |
3275 | parse_time -= varconst_time; | |
3276 | ||
1fe65c00 PB |
3277 | if (flag_syntax_only) |
3278 | goto finish_syntax; | |
3279 | ||
4291d9c8 RS |
3280 | globals = getdecls (); |
3281 | ||
3282 | /* Really define vars that have had only a tentative definition. | |
3283 | Really output inline functions that must actually be callable | |
3284 | and have not been output so far. */ | |
3285 | ||
3286 | { | |
3287 | int len = list_length (globals); | |
3288 | tree *vec = (tree *) alloca (sizeof (tree) * len); | |
3289 | int i; | |
3290 | tree decl; | |
3291 | ||
3292 | /* Process the decls in reverse order--earliest first. | |
3293 | Put them into VEC from back to front, then take out from front. */ | |
3294 | ||
3295 | for (i = 0, decl = globals; i < len; i++, decl = TREE_CHAIN (decl)) | |
3296 | vec[len - i - 1] = decl; | |
3297 | ||
32291f94 | 3298 | wrapup_global_declarations (vec, len); |
4291d9c8 | 3299 | |
2668793e JL |
3300 | /* This must occur after the loop to output deferred functions. Else |
3301 | the profiler initializer would not be emitted if all the functions | |
3302 | in this compilation unit were deferred. | |
3303 | ||
3304 | output_func_start_profiler can not cause any additional functions or | |
3305 | data to need to be output, so it need not be in the deferred function | |
3306 | loop above. */ | |
3307 | output_func_start_profiler (); | |
3308 | ||
3d195391 MS |
3309 | /* Now that all possible functions have been output, we can dump |
3310 | the exception table. */ | |
3311 | ||
0021b564 | 3312 | output_exception_table (); |
6c3fce73 MM |
3313 | |
3314 | check_global_declarations (vec, len); | |
4291d9c8 RS |
3315 | } |
3316 | ||
4b8af8d9 JM |
3317 | /* Write out any pending weak symbol declarations. */ |
3318 | ||
3319 | weak_finish (); | |
3320 | ||
4291d9c8 | 3321 | /* Do dbx symbols */ |
f246a305 RS |
3322 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
3323 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
3324 | TIMEVAR (symout_time, |
3325 | { | |
3326 | dbxout_finish (asm_out_file, main_input_filename); | |
3327 | }); | |
3328 | #endif | |
3329 | ||
3330 | #ifdef DWARF_DEBUGGING_INFO | |
3331 | if (write_symbols == DWARF_DEBUG) | |
3332 | TIMEVAR (symout_time, | |
3333 | { | |
3334 | dwarfout_finish (); | |
3335 | }); | |
3336 | #endif | |
3337 | ||
0021b564 JM |
3338 | #ifdef DWARF2_UNWIND_INFO |
3339 | if (dwarf2out_do_frame ()) | |
3340 | dwarf2out_frame_finish (); | |
3341 | #endif | |
3342 | ||
9a666dda JM |
3343 | #ifdef DWARF2_DEBUGGING_INFO |
3344 | if (write_symbols == DWARF2_DEBUG) | |
3345 | TIMEVAR (symout_time, | |
3346 | { | |
3347 | dwarf2out_finish (); | |
3348 | }); | |
3349 | #endif | |
3350 | ||
4291d9c8 RS |
3351 | /* Output some stuff at end of file if nec. */ |
3352 | ||
b93a436e | 3353 | end_final (dump_base_name); |
032713aa NC |
3354 | |
3355 | if (branch_prob_dump) | |
3356 | open_dump_file (".bp", NULL); | |
3357 | ||
3358 | TIMEVAR (dump_time, end_branch_prob (rtl_dump_file)); | |
3359 | ||
3360 | if (branch_prob_dump) | |
3361 | close_dump_file (NULL, NULL_RTX); | |
3362 | ||
4291d9c8 | 3363 | #ifdef ASM_FILE_END |
b93a436e | 3364 | ASM_FILE_END (asm_out_file); |
4291d9c8 RS |
3365 | #endif |
3366 | ||
ed396e68 | 3367 | |
4291d9c8 | 3368 | /* Language-specific end of compilation actions. */ |
1fe65c00 | 3369 | finish_syntax: |
4291d9c8 RS |
3370 | lang_finish (); |
3371 | ||
3372 | /* Close the dump files. */ | |
3373 | ||
3374 | if (flag_gen_aux_info) | |
3375 | { | |
3376 | fclose (aux_info_file); | |
3377 | if (errorcount) | |
3378 | unlink (aux_info_file_name); | |
3379 | } | |
3380 | ||
4291d9c8 RS |
3381 | if (combine_dump) |
3382 | { | |
032713aa NC |
3383 | open_dump_file (".combine", NULL); |
3384 | TIMEVAR (dump_time, dump_combine_total_stats (rtl_dump_file)); | |
3385 | close_dump_file (NULL, NULL_RTX); | |
4291d9c8 RS |
3386 | } |
3387 | ||
4291d9c8 RS |
3388 | /* Close non-debugging input and output files. Take special care to note |
3389 | whether fclose returns an error, since the pages might still be on the | |
3390 | buffer chain while the file is open. */ | |
3391 | ||
e3d1fd32 | 3392 | finish_parse (); |
e56e519d | 3393 | |
1fe65c00 PB |
3394 | if (! flag_syntax_only |
3395 | && (ferror (asm_out_file) != 0 || fclose (asm_out_file) != 0)) | |
4291d9c8 RS |
3396 | fatal_io_error (asm_file_name); |
3397 | ||
735a0e33 UD |
3398 | /* Do whatever is necessary to finish printing the graphs. */ |
3399 | if (graph_dump_format != no_graph) | |
3400 | { | |
3401 | if (jump_opt_dump) | |
3402 | finish_graph_dump_file (dump_base_name, ".jump"); | |
3403 | if (addressof_dump) | |
3404 | finish_graph_dump_file (dump_base_name, ".addressof"); | |
3405 | if (cse_dump) | |
3406 | finish_graph_dump_file (dump_base_name, ".cse"); | |
3407 | if (loop_dump) | |
3408 | finish_graph_dump_file (dump_base_name, ".loop"); | |
3409 | if (cse2_dump) | |
3410 | finish_graph_dump_file (dump_base_name, ".cse2"); | |
3411 | if (branch_prob_dump) | |
3412 | finish_graph_dump_file (dump_base_name, ".bp"); | |
3413 | if (flow_dump) | |
3414 | finish_graph_dump_file (dump_base_name, ".flow"); | |
3415 | if (combine_dump) | |
3416 | finish_graph_dump_file (dump_base_name, ".combine"); | |
3417 | if (regmove_dump) | |
3418 | finish_graph_dump_file (dump_base_name, ".regmove"); | |
3419 | if (sched_dump) | |
3420 | finish_graph_dump_file (dump_base_name, ".sched"); | |
3421 | if (local_reg_dump) | |
3422 | finish_graph_dump_file (dump_base_name, ".lreg"); | |
3423 | if (global_reg_dump) | |
3424 | finish_graph_dump_file (dump_base_name, ".greg"); | |
78327a73 | 3425 | if (flow2_dump) |
e881bb1b | 3426 | finish_graph_dump_file (dump_base_name, ".flow2"); |
735a0e33 UD |
3427 | if (sched2_dump) |
3428 | finish_graph_dump_file (dump_base_name, ".sched2"); | |
3429 | if (jump2_opt_dump) | |
3430 | finish_graph_dump_file (dump_base_name, ".jump2"); | |
3431 | #ifdef DELAY_SLOTS | |
3432 | if (dbr_sched_dump) | |
3433 | finish_graph_dump_file (dump_base_name, ".dbr"); | |
3434 | #endif | |
3435 | if (gcse_dump) | |
3436 | finish_graph_dump_file (dump_base_name, ".gcse"); | |
3437 | #ifdef STACK_REGS | |
3438 | if (stack_reg_dump) | |
3439 | finish_graph_dump_file (dump_base_name, ".stack"); | |
3440 | #endif | |
3441 | #ifdef MACHINE_DEPENDENT_REORG | |
3442 | if (mach_dep_reorg_dump) | |
3443 | finish_graph_dump_file (dump_base_name, ".mach"); | |
3444 | #endif | |
3445 | } | |
3446 | ||
ed396e68 BS |
3447 | /* Free up memory for the benefit of leak detectors. */ |
3448 | free_reg_info (); | |
3449 | ||
4291d9c8 RS |
3450 | /* Print the times. */ |
3451 | ||
3452 | if (! quiet_flag) | |
3453 | { | |
0a25f1f5 RH |
3454 | all_time = get_run_time (); |
3455 | ||
4291d9c8 | 3456 | fprintf (stderr,"\n"); |
ca695ac9 | 3457 | |
0a25f1f5 | 3458 | print_time ("parse", parse_time); |
b93a436e JL |
3459 | print_time ("integration", integration_time); |
3460 | print_time ("jump", jump_time); | |
3461 | print_time ("cse", cse_time); | |
7506f491 | 3462 | print_time ("gcse", gcse_time); |
b93a436e JL |
3463 | print_time ("loop", loop_time); |
3464 | print_time ("cse2", cse2_time); | |
3465 | print_time ("branch-prob", branch_prob_time); | |
3466 | print_time ("flow", flow_time); | |
3467 | print_time ("combine", combine_time); | |
3468 | print_time ("regmove", regmove_time); | |
3469 | print_time ("sched", sched_time); | |
3470 | print_time ("local-alloc", local_alloc_time); | |
3471 | print_time ("global-alloc", global_alloc_time); | |
e881bb1b | 3472 | print_time ("flow2", flow2_time); |
b93a436e | 3473 | print_time ("sched2", sched2_time); |
bd334356 | 3474 | #ifdef DELAY_SLOTS |
b93a436e | 3475 | print_time ("dbranch", dbr_sched_time); |
bd334356 | 3476 | #endif |
b93a436e JL |
3477 | print_time ("shorten-branch", shorten_branch_time); |
3478 | print_time ("stack-reg", stack_reg_time); | |
3479 | print_time ("final", final_time); | |
3480 | print_time ("varconst", varconst_time); | |
3481 | print_time ("symout", symout_time); | |
3482 | print_time ("dump", dump_time); | |
0a25f1f5 | 3483 | print_time ("gc", gc_time); |
4291d9c8 RS |
3484 | } |
3485 | } | |
3486 | \f | |
3487 | /* This is called from various places for FUNCTION_DECL, VAR_DECL, | |
3488 | and TYPE_DECL nodes. | |
3489 | ||
3490 | This does nothing for local (non-static) variables. | |
3491 | Otherwise, it sets up the RTL and outputs any assembler code | |
3492 | (label definition, storage allocation and initialization). | |
3493 | ||
3494 | DECL is the declaration. If ASMSPEC is nonzero, it specifies | |
3495 | the assembler symbol name to be used. TOP_LEVEL is nonzero | |
3496 | if this declaration is not within a function. */ | |
3497 | ||
3498 | void | |
3499 | rest_of_decl_compilation (decl, asmspec, top_level, at_end) | |
3500 | tree decl; | |
87e11268 | 3501 | const char *asmspec; |
4291d9c8 RS |
3502 | int top_level; |
3503 | int at_end; | |
3504 | { | |
3505 | /* Declarations of variables, and of functions defined elsewhere. */ | |
3506 | ||
928eb380 RS |
3507 | /* The most obvious approach, to put an #ifndef around where |
3508 | this macro is used, doesn't work since it's inside a macro call. */ | |
3509 | #ifndef ASM_FINISH_DECLARE_OBJECT | |
3510 | #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP, END) | |
3511 | #endif | |
3512 | ||
4291d9c8 RS |
3513 | /* Forward declarations for nested functions are not "external", |
3514 | but we need to treat them as if they were. */ | |
216d5cdd | 3515 | if (TREE_STATIC (decl) || DECL_EXTERNAL (decl) |
4291d9c8 RS |
3516 | || TREE_CODE (decl) == FUNCTION_DECL) |
3517 | TIMEVAR (varconst_time, | |
3518 | { | |
3519 | make_decl_rtl (decl, asmspec, top_level); | |
9a9a9643 RS |
3520 | /* Initialized extern variable exists to be replaced |
3521 | with its value, or represents something that will be | |
3522 | output in another file. */ | |
6dbf678a | 3523 | if (! (TREE_CODE (decl) == VAR_DECL |
9a9a9643 RS |
3524 | && DECL_EXTERNAL (decl) && TREE_READONLY (decl) |
3525 | && DECL_INITIAL (decl) != 0 | |
5b272d50 | 3526 | && DECL_INITIAL (decl) != error_mark_node)) |
6dbf678a RS |
3527 | /* Don't output anything |
3528 | when a tentative file-scope definition is seen. | |
3529 | But at end of compilation, do output code for them. */ | |
3530 | if (! (! at_end && top_level | |
3531 | && (DECL_INITIAL (decl) == 0 | |
9a9a9643 | 3532 | || DECL_INITIAL (decl) == error_mark_node))) |
8380e2f2 | 3533 | assemble_variable (decl, top_level, at_end, 0); |
b93a436e | 3534 | if (decl == last_assemble_variable_decl) |
5e10b3cc RS |
3535 | { |
3536 | ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl, | |
3537 | top_level, at_end); | |
3538 | } | |
4291d9c8 | 3539 | }); |
216d5cdd | 3540 | else if (DECL_REGISTER (decl) && asmspec != 0) |
4291d9c8 RS |
3541 | { |
3542 | if (decode_reg_name (asmspec) >= 0) | |
3543 | { | |
3544 | DECL_RTL (decl) = 0; | |
3545 | make_decl_rtl (decl, asmspec, top_level); | |
3546 | } | |
3547 | else | |
3548 | error ("invalid register name `%s' for register variable", asmspec); | |
3549 | } | |
f246a305 RS |
3550 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
3551 | else if ((write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
3552 | && TREE_CODE (decl) == TYPE_DECL) | |
4291d9c8 RS |
3553 | TIMEVAR (symout_time, dbxout_symbol (decl, 0)); |
3554 | #endif | |
3555 | #ifdef SDB_DEBUGGING_INFO | |
3556 | else if (write_symbols == SDB_DEBUG && top_level | |
3557 | && TREE_CODE (decl) == TYPE_DECL) | |
3558 | TIMEVAR (symout_time, sdbout_symbol (decl, 0)); | |
3559 | #endif | |
3560 | } | |
3561 | ||
3562 | /* Called after finishing a record, union or enumeral type. */ | |
3563 | ||
3564 | void | |
3565 | rest_of_type_compilation (type, toplev) | |
114791ea | 3566 | #if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO) || defined (SDB_DEBUGGING_INFO) |
4291d9c8 RS |
3567 | tree type; |
3568 | int toplev; | |
114791ea KG |
3569 | #else |
3570 | tree type ATTRIBUTE_UNUSED; | |
3571 | int toplev ATTRIBUTE_UNUSED; | |
3572 | #endif | |
4291d9c8 | 3573 | { |
f246a305 RS |
3574 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
3575 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
3576 | TIMEVAR (symout_time, dbxout_symbol (TYPE_STUB_DECL (type), !toplev)); |
3577 | #endif | |
3578 | #ifdef SDB_DEBUGGING_INFO | |
3579 | if (write_symbols == SDB_DEBUG) | |
3580 | TIMEVAR (symout_time, sdbout_symbol (TYPE_STUB_DECL (type), !toplev)); | |
3581 | #endif | |
3582 | } | |
3583 | ||
3584 | /* This is called from finish_function (within yyparse) | |
3585 | after each top-level definition is parsed. | |
3586 | It is supposed to compile that function or variable | |
3587 | and output the assembler code for it. | |
3588 | After we return, the tree storage is freed. */ | |
3589 | ||
3590 | void | |
3591 | rest_of_compilation (decl) | |
3592 | tree decl; | |
3593 | { | |
3594 | register rtx insns; | |
3595 | int start_time = get_run_time (); | |
3596 | int tem; | |
3597 | /* Nonzero if we have saved the original DECL_INITIAL of the function, | |
3598 | to be restored after we finish compiling the function | |
3599 | (for use when compiling inline calls to this function). */ | |
3600 | tree saved_block_tree = 0; | |
8a958768 RS |
3601 | /* Likewise, for DECL_ARGUMENTS. */ |
3602 | tree saved_arguments = 0; | |
ab40ad2b | 3603 | int failure = 0; |
c4403371 | 3604 | int rebuild_label_notes_after_reload; |
4291d9c8 RS |
3605 | |
3606 | /* If we are reconsidering an inline function | |
3607 | at the end of compilation, skip the stuff for making it inline. */ | |
3608 | ||
3609 | if (DECL_SAVED_INSNS (decl) == 0) | |
3610 | { | |
956d6950 | 3611 | int inlinable = 0; |
dff01034 | 3612 | const char *lose; |
4291d9c8 RS |
3613 | |
3614 | /* If requested, consider whether to make this function inline. */ | |
9deaf1b1 | 3615 | if (DECL_INLINE (decl) || flag_inline_functions) |
4291d9c8 RS |
3616 | TIMEVAR (integration_time, |
3617 | { | |
3618 | lose = function_cannot_inline_p (decl); | |
caa0eccd | 3619 | if (lose || ! optimize) |
4291d9c8 | 3620 | { |
9deaf1b1 | 3621 | if (warn_inline && DECL_INLINE (decl)) |
4291d9c8 | 3622 | warning_with_decl (decl, lose); |
9548c538 | 3623 | DECL_ABSTRACT_ORIGIN (decl) = 0; |
46dbb914 RS |
3624 | /* Don't really compile an extern inline function. |
3625 | If we can't make it inline, pretend | |
3626 | it was only declared. */ | |
3627 | if (DECL_EXTERNAL (decl)) | |
27937f46 RS |
3628 | { |
3629 | DECL_INITIAL (decl) = 0; | |
3630 | goto exit_rest_of_compilation; | |
3631 | } | |
4291d9c8 RS |
3632 | } |
3633 | else | |
9deaf1b1 RK |
3634 | /* ??? Note that this has the effect of making it look |
3635 | like "inline" was specified for a function if we choose | |
3636 | to inline it. This isn't quite right, but it's | |
3637 | probably not worth the trouble to fix. */ | |
956d6950 | 3638 | inlinable = DECL_INLINE (decl) = 1; |
4291d9c8 RS |
3639 | }); |
3640 | ||
3641 | insns = get_insns (); | |
3642 | ||
3643 | /* Dump the rtl code if we are dumping rtl. */ | |
3644 | ||
3645 | if (rtl_dump) | |
032713aa NC |
3646 | { |
3647 | open_dump_file (".rtl", decl_printable_name (decl, 2)); | |
3648 | ||
3649 | if (DECL_SAVED_INSNS (decl)) | |
3650 | fprintf (rtl_dump_file, ";; (integrable)\n\n"); | |
3651 | ||
3652 | close_dump_file (print_rtl, insns); | |
3653 | } | |
4291d9c8 RS |
3654 | |
3655 | /* If function is inline, and we don't yet know whether to | |
3656 | compile it by itself, defer decision till end of compilation. | |
3657 | finish_compilation will call rest_of_compilation again | |
16411ea6 | 3658 | for those functions that need to be output. Also defer those |
36edd3cc BS |
3659 | functions that we are supposed to defer. */ |
3660 | ||
956d6950 | 3661 | if (inlinable) |
36edd3cc | 3662 | DECL_DEFER_OUTPUT (decl) = 1; |
e9a25f70 | 3663 | |
36edd3cc BS |
3664 | if (DECL_DEFER_OUTPUT (decl) |
3665 | || (DECL_INLINE (decl) | |
3666 | && ((! TREE_PUBLIC (decl) && ! TREE_ADDRESSABLE (decl) | |
3667 | && ! flag_keep_inline_functions) | |
3668 | || DECL_EXTERNAL (decl)))) | |
4291d9c8 | 3669 | { |
951af26e JM |
3670 | DECL_DEFER_OUTPUT (decl) = 1; |
3671 | ||
a701efba MM |
3672 | /* If -Wreturn-type, we have to do a bit of compilation. |
3673 | However, if we just fall through we will call | |
3674 | save_for_inline_copying() which results in excessive | |
3675 | memory use. Instead, we just want to call | |
3676 | jump_optimize() to figure out whether or not we can fall | |
3677 | off the end of the function; we do the minimum amount of | |
3678 | work necessary to make that safe. And, we set optimize | |
3679 | to zero to keep jump_optimize from working too hard. */ | |
3680 | if (warn_return_type) | |
937522b5 | 3681 | { |
a701efba MM |
3682 | int saved_optimize = optimize; |
3683 | optimize = 0; | |
3684 | find_exception_handler_labels (); | |
14bf4a33 MM |
3685 | jump_optimize (get_insns(), !JUMP_CROSS_JUMP, !JUMP_NOOP_MOVES, |
3686 | !JUMP_AFTER_REGSCAN); | |
a701efba MM |
3687 | optimize = saved_optimize; |
3688 | } | |
3689 | ||
951af26e | 3690 | #ifdef DWARF_DEBUGGING_INFO |
a701efba MM |
3691 | /* Generate the DWARF info for the "abstract" instance |
3692 | of a function which we may later generate inlined and/or | |
3693 | out-of-line instances of. */ | |
3694 | if (write_symbols == DWARF_DEBUG) | |
3695 | { | |
3696 | set_decl_abstract_flags (decl, 1); | |
3697 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
3698 | set_decl_abstract_flags (decl, 0); | |
3699 | } | |
9a666dda JM |
3700 | #endif |
3701 | #ifdef DWARF2_DEBUGGING_INFO | |
a701efba MM |
3702 | /* Generate the DWARF2 info for the "abstract" instance |
3703 | of a function which we may later generate inlined and/or | |
3704 | out-of-line instances of. */ | |
3705 | if (write_symbols == DWARF2_DEBUG) | |
3706 | { | |
3707 | set_decl_abstract_flags (decl, 1); | |
3708 | TIMEVAR (symout_time, dwarf2out_decl (decl)); | |
3709 | set_decl_abstract_flags (decl, 0); | |
937522b5 | 3710 | } |
a701efba MM |
3711 | #endif |
3712 | TIMEVAR (integration_time, save_for_inline_nocopy (decl)); | |
49ad7cfa | 3713 | DECL_SAVED_INSNS (decl)->inlinable = inlinable; |
a701efba | 3714 | goto exit_rest_of_compilation; |
4291d9c8 RS |
3715 | } |
3716 | ||
b8471b65 | 3717 | /* If specified extern inline but we aren't inlining it, we are |
1cbe6eb6 JM |
3718 | done. This goes for anything that gets here with DECL_EXTERNAL |
3719 | set, not just things with DECL_INLINE. */ | |
3720 | if (DECL_EXTERNAL (decl)) | |
b8471b65 RK |
3721 | goto exit_rest_of_compilation; |
3722 | } | |
07af9d16 | 3723 | |
49ad7cfa BS |
3724 | /* Initialize some variables used by the optimizers. */ |
3725 | init_function_for_compilation (); | |
3726 | ||
951af26e JM |
3727 | if (! DECL_DEFER_OUTPUT (decl)) |
3728 | TREE_ASM_WRITTEN (decl) = 1; | |
4291d9c8 RS |
3729 | |
3730 | /* Now that integrate will no longer see our rtl, we need not distinguish | |
3731 | between the return value of this function and the return value of called | |
3732 | functions. */ | |
3733 | rtx_equal_function_value_matters = 0; | |
3734 | ||
32235b30 RS |
3735 | /* Don't return yet if -Wreturn-type; we need to do jump_optimize. */ |
3736 | if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type) | |
4291d9c8 RS |
3737 | { |
3738 | goto exit_rest_of_compilation; | |
3739 | } | |
3740 | ||
154bba13 TT |
3741 | /* Emit code to get eh context, if needed. */ |
3742 | emit_eh_context (); | |
3743 | ||
4291d9c8 RS |
3744 | #ifdef FINALIZE_PIC |
3745 | /* If we are doing position-independent code generation, now | |
3746 | is the time to output special prologues and epilogues. | |
3747 | We do not want to do this earlier, because it just clutters | |
3748 | up inline functions with meaningless insns. */ | |
3749 | if (flag_pic) | |
3750 | FINALIZE_PIC; | |
3751 | #endif | |
3752 | ||
89418a92 BK |
3753 | /* From now on, allocate rtl in current_obstack, not in saveable_obstack. |
3754 | Note that that may have been done above, in save_for_inline_copying. | |
3755 | The call to resume_temporary_allocation near the end of this function | |
3756 | goes back to the usual state of affairs. This must be done after | |
3757 | we've built up any unwinders for exception handling, and done | |
3758 | the FINALIZE_PIC work, if necessary. */ | |
3759 | ||
3760 | rtl_in_current_obstack (); | |
3d195391 | 3761 | |
4291d9c8 RS |
3762 | insns = get_insns (); |
3763 | ||
3764 | /* Copy any shared structure that should not be shared. */ | |
3765 | ||
3766 | unshare_all_rtl (insns); | |
3767 | ||
5a4f6418 AM |
3768 | init_EXPR_INSN_LIST_cache (); |
3769 | ||
c9ec4f99 DM |
3770 | #ifdef SETJMP_VIA_SAVE_AREA |
3771 | /* This must be performed before virutal register instantiation. */ | |
3772 | if (current_function_calls_alloca) | |
3773 | optimize_save_area_alloca (insns); | |
3774 | #endif | |
3775 | ||
4291d9c8 RS |
3776 | /* Instantiate all virtual registers. */ |
3777 | ||
3778 | instantiate_virtual_regs (current_function_decl, get_insns ()); | |
3779 | ||
3780 | /* See if we have allocated stack slots that are not directly addressable. | |
3781 | If so, scan all the insns and create explicit address computation | |
3782 | for all references to such slots. */ | |
0a25f1f5 | 3783 | /* fixup_stack_slots (); */ |
4291d9c8 | 3784 | |
3d195391 MS |
3785 | /* Find all the EH handlers. */ |
3786 | find_exception_handler_labels (); | |
3787 | ||
cc4e79d8 JL |
3788 | /* Always do one jump optimization pass to ensure that JUMP_LABEL fields |
3789 | are initialized and to compute whether control can drop off the end | |
3790 | of the function. */ | |
3791 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
14bf4a33 MM |
3792 | TIMEVAR (jump_time, jump_optimize (insns, !JUMP_CROSS_JUMP, !JUMP_NOOP_MOVES, |
3793 | JUMP_AFTER_REGSCAN)); | |
4291d9c8 | 3794 | |
32235b30 | 3795 | /* Now is when we stop if -fsyntax-only and -Wreturn-type. */ |
951af26e | 3796 | if (rtl_dump_and_exit || flag_syntax_only || DECL_DEFER_OUTPUT (decl)) |
32235b30 RS |
3797 | goto exit_rest_of_compilation; |
3798 | ||
4291d9c8 | 3799 | /* Dump rtl code after jump, if we are doing that. */ |
49ad7cfa BS |
3800 | if (jump_opt_dump) |
3801 | dump_rtl (".jump", decl, print_rtl, insns); | |
4291d9c8 RS |
3802 | |
3803 | /* Perform common subexpression elimination. | |
3804 | Nonzero value from `cse_main' means that jumps were simplified | |
3805 | and some code may now be unreachable, so do | |
3806 | jump optimization again. */ | |
3807 | ||
4291d9c8 RS |
3808 | if (optimize > 0) |
3809 | { | |
032713aa NC |
3810 | if (cse_dump) |
3811 | open_dump_file (".cse", decl_printable_name (decl, 2)); | |
3812 | ||
4291d9c8 RS |
3813 | TIMEVAR (cse_time, reg_scan (insns, max_reg_num (), 1)); |
3814 | ||
3815 | if (flag_thread_jumps) | |
3816 | /* Hacks by tiemann & kenner. */ | |
6f606d63 | 3817 | TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 1)); |
4291d9c8 RS |
3818 | |
3819 | TIMEVAR (cse_time, tem = cse_main (insns, max_reg_num (), | |
032713aa | 3820 | 0, rtl_dump_file)); |
c6a26dc4 | 3821 | TIMEVAR (cse_time, delete_trivially_dead_insns (insns, max_reg_num ())); |
4291d9c8 | 3822 | |
534bfae4 | 3823 | if (tem || optimize > 1) |
14bf4a33 MM |
3824 | TIMEVAR (jump_time, jump_optimize (insns, !JUMP_CROSS_JUMP, |
3825 | !JUMP_NOOP_MOVES, | |
3826 | !JUMP_AFTER_REGSCAN)); | |
4291d9c8 | 3827 | |
032713aa | 3828 | /* Dump rtl code after cse, if we are doing that. */ |
735a0e33 | 3829 | |
032713aa | 3830 | if (cse_dump) |
735a0e33 UD |
3831 | { |
3832 | close_dump_file (print_rtl, insns); | |
3833 | if (graph_dump_format != no_graph) | |
3834 | print_rtl_graph_with_bb (dump_base_name, ".cse", insns); | |
3835 | } | |
032713aa | 3836 | } |
4291d9c8 | 3837 | |
e9a25f70 JL |
3838 | purge_addressof (insns); |
3839 | reg_scan (insns, max_reg_num (), 1); | |
3840 | ||
3841 | if (addressof_dump) | |
735a0e33 UD |
3842 | { |
3843 | dump_rtl (".addressof", decl, print_rtl, insns); | |
3844 | if (graph_dump_format != no_graph) | |
3845 | print_rtl_graph_with_bb (dump_base_name, ".addressof", insns); | |
3846 | } | |
3847 | ||
7506f491 DE |
3848 | /* Perform global cse. */ |
3849 | ||
3850 | if (optimize > 0 && flag_gcse) | |
3851 | { | |
3852 | if (gcse_dump) | |
e5ad6436 | 3853 | open_dump_file (".gcse", decl_printable_name (decl, 2)); |
735a0e33 | 3854 | |
e78d9500 JL |
3855 | TIMEVAR (gcse_time, tem = gcse_main (insns, rtl_dump_file)); |
3856 | ||
3857 | /* If gcse altered any jumps, rerun jump optimizations to clean | |
3858 | things up. */ | |
3859 | if (tem) | |
3860 | { | |
3861 | TIMEVAR (jump_time, jump_optimize (insns, !JUMP_CROSS_JUMP, | |
3862 | !JUMP_NOOP_MOVES, | |
3863 | !JUMP_AFTER_REGSCAN)); | |
3864 | } | |
7506f491 DE |
3865 | |
3866 | if (gcse_dump) | |
735a0e33 UD |
3867 | { |
3868 | close_dump_file (print_rtl, insns); | |
3869 | if (graph_dump_format != no_graph) | |
3870 | print_rtl_graph_with_bb (dump_base_name, ".gcse", insns); | |
3871 | } | |
7506f491 | 3872 | } |
4291d9c8 RS |
3873 | /* Move constant computations out of loops. */ |
3874 | ||
3875 | if (optimize > 0) | |
3876 | { | |
032713aa NC |
3877 | if (loop_dump) |
3878 | open_dump_file (".loop", decl_printable_name (decl, 2)); | |
3879 | ||
3880 | TIMEVAR | |
3881 | (loop_time, | |
3882 | { | |
3883 | if (flag_rerun_loop_opt) | |
4291d9c8 | 3884 | { |
032713aa NC |
3885 | /* We only want to perform unrolling once. */ |
3886 | ||
5accd822 | 3887 | loop_optimize (insns, rtl_dump_file, 0, 0); |
032713aa | 3888 | |
c6a26dc4 JL |
3889 | |
3890 | /* The first call to loop_optimize makes some instructions | |
3891 | trivially dead. We delete those instructions now in the | |
3892 | hope that doing so will make the heuristics in loop work | |
3893 | better and possibly speed up compilation. */ | |
3894 | delete_trivially_dead_insns (insns, max_reg_num ()); | |
3895 | ||
3896 | /* The regscan pass is currently necessary as the alias | |
3897 | analysis code depends on this information. */ | |
032713aa NC |
3898 | reg_scan (insns, max_reg_num (), 1); |
3899 | } | |
5accd822 | 3900 | loop_optimize (insns, rtl_dump_file, flag_unroll_loops, 1); |
032713aa | 3901 | }); |
735a0e33 | 3902 | |
032713aa | 3903 | /* Dump rtl code after loop opt, if we are doing that. */ |
735a0e33 | 3904 | |
032713aa | 3905 | if (loop_dump) |
735a0e33 UD |
3906 | { |
3907 | close_dump_file (print_rtl, insns); | |
3908 | if (graph_dump_format != no_graph) | |
3909 | print_rtl_graph_with_bb (dump_base_name, ".loop", insns); | |
3910 | } | |
4291d9c8 RS |
3911 | } |
3912 | ||
032713aa | 3913 | if (optimize > 0) |
c2f006ec | 3914 | { |
032713aa NC |
3915 | if (cse2_dump) |
3916 | open_dump_file (".cse2", decl_printable_name (decl, 2)); | |
735a0e33 | 3917 | |
032713aa NC |
3918 | if (flag_rerun_cse_after_loop) |
3919 | { | |
3920 | /* Running another jump optimization pass before the second | |
3921 | cse pass sometimes simplifies the RTL enough to allow | |
3922 | the second CSE pass to do a better job. Jump_optimize can change | |
3923 | max_reg_num so we must rerun reg_scan afterwards. | |
3924 | ??? Rework to not call reg_scan so often. */ | |
3925 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
14bf4a33 MM |
3926 | TIMEVAR (jump_time, jump_optimize (insns, !JUMP_CROSS_JUMP, |
3927 | !JUMP_NOOP_MOVES, | |
3928 | JUMP_AFTER_REGSCAN)); | |
032713aa NC |
3929 | |
3930 | TIMEVAR (cse2_time, reg_scan (insns, max_reg_num (), 0)); | |
3931 | TIMEVAR (cse2_time, tem = cse_main (insns, max_reg_num (), | |
3932 | 1, rtl_dump_file)); | |
3933 | if (tem) | |
14bf4a33 MM |
3934 | TIMEVAR (jump_time, jump_optimize (insns, !JUMP_CROSS_JUMP, |
3935 | !JUMP_NOOP_MOVES, | |
3936 | !JUMP_AFTER_REGSCAN)); | |
032713aa | 3937 | } |
0d332add | 3938 | |
032713aa NC |
3939 | if (flag_thread_jumps) |
3940 | { | |
3941 | /* This pass of jump threading straightens out code | |
3942 | that was kinked by loop optimization. */ | |
3943 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
3944 | TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 0)); | |
3945 | } | |
735a0e33 | 3946 | |
032713aa | 3947 | /* Dump rtl code after cse, if we are doing that. */ |
735a0e33 | 3948 | |
032713aa | 3949 | if (cse2_dump) |
735a0e33 UD |
3950 | { |
3951 | close_dump_file (print_rtl, insns); | |
3952 | if (graph_dump_format != no_graph) | |
3953 | print_rtl_graph_with_bb (dump_base_name, ".cse2", insns); | |
3954 | } | |
032713aa | 3955 | } |
735a0e33 | 3956 | |
0d332add | 3957 | if (profile_arc_flag || flag_test_coverage || flag_branch_probabilities) |
032713aa NC |
3958 | { |
3959 | if (branch_prob_dump) | |
3960 | open_dump_file (".bp", decl_printable_name (decl, 2)); | |
735a0e33 | 3961 | |
032713aa NC |
3962 | TIMEVAR |
3963 | (branch_prob_time, | |
3964 | { | |
3965 | branch_prob (insns, rtl_dump_file); | |
3966 | }); | |
735a0e33 | 3967 | |
032713aa | 3968 | if (branch_prob_dump) |
735a0e33 UD |
3969 | { |
3970 | close_dump_file (print_rtl, insns); | |
3971 | if (graph_dump_format != no_graph) | |
3972 | print_rtl_graph_with_bb (dump_base_name, ".bp", insns); | |
3973 | } | |
032713aa | 3974 | } |
735a0e33 | 3975 | |
4291d9c8 RS |
3976 | /* We are no longer anticipating cse in this function, at least. */ |
3977 | ||
3978 | cse_not_expected = 1; | |
3979 | ||
3980 | /* Now we choose between stupid (pcc-like) register allocation | |
3981 | (if we got the -noreg switch and not -opt) | |
3982 | and smart register allocation. */ | |
3983 | ||
bbf9d88c | 3984 | if (optimize > 0) /* Stupid allocation probably won't work */ |
4291d9c8 RS |
3985 | obey_regdecls = 0; /* if optimizations being done. */ |
3986 | ||
3987 | regclass_init (); | |
3988 | ||
3989 | /* Print function header into flow dump now | |
3990 | because doing the flow analysis makes some of the dump. */ | |
3991 | ||
3992 | if (flow_dump) | |
032713aa NC |
3993 | open_dump_file (".flow", decl_printable_name (decl, 2)); |
3994 | ||
4291d9c8 RS |
3995 | if (obey_regdecls) |
3996 | { | |
3997 | TIMEVAR (flow_time, | |
3998 | { | |
3999 | regclass (insns, max_reg_num ()); | |
4000 | stupid_life_analysis (insns, max_reg_num (), | |
032713aa | 4001 | rtl_dump_file); |
4291d9c8 RS |
4002 | }); |
4003 | } | |
4004 | else | |
4005 | { | |
4006 | /* Do control and data flow analysis, | |
4007 | and write some of the results to dump file. */ | |
4008 | ||
5ece9746 JL |
4009 | TIMEVAR |
4010 | (flow_time, | |
4011 | { | |
359da67d | 4012 | find_basic_blocks (insns, max_reg_num (), rtl_dump_file, 1); |
11f246f6 | 4013 | life_analysis (insns, max_reg_num (), rtl_dump_file, 1); |
5ece9746 JL |
4014 | }); |
4015 | ||
4291d9c8 RS |
4016 | if (warn_uninitialized) |
4017 | { | |
4018 | uninitialized_vars_warning (DECL_INITIAL (decl)); | |
4019 | setjmp_args_warning (); | |
4020 | } | |
4021 | } | |
4022 | ||
4023 | /* Dump rtl after flow analysis. */ | |
4024 | ||
4025 | if (flow_dump) | |
735a0e33 UD |
4026 | { |
4027 | close_dump_file (print_rtl_with_bb, insns); | |
4028 | if (graph_dump_format != no_graph) | |
4029 | print_rtl_graph_with_bb (dump_base_name, ".flow", insns); | |
4030 | } | |
4031 | ||
f1db3576 JL |
4032 | /* The first life analysis pass has finished. From now on we can not |
4033 | generate any new pseudos. */ | |
4034 | no_new_pseudos = 1; | |
4035 | ||
4291d9c8 RS |
4036 | /* If -opt, try combining insns through substitution. */ |
4037 | ||
4038 | if (optimize > 0) | |
032713aa NC |
4039 | { |
4040 | TIMEVAR (combine_time, combine_instructions (insns, max_reg_num ())); | |
735a0e33 | 4041 | |
032713aa | 4042 | /* Dump rtl code after insn combination. */ |
735a0e33 | 4043 | |
032713aa | 4044 | if (combine_dump) |
735a0e33 UD |
4045 | { |
4046 | dump_rtl (".combine", decl, print_rtl_with_bb, insns); | |
4047 | if (graph_dump_format != no_graph) | |
4048 | print_rtl_graph_with_bb (dump_base_name, ".combine", insns); | |
4049 | } | |
032713aa | 4050 | } |
8c660648 JL |
4051 | |
4052 | /* Register allocation pre-pass, to reduce number of moves | |
4053 | necessary for two-address machines. */ | |
1230327b | 4054 | if (optimize > 0 && (flag_regmove || flag_expensive_optimizations)) |
032713aa NC |
4055 | { |
4056 | if (regmove_dump) | |
4057 | open_dump_file (".regmove", decl_printable_name (decl, 2)); | |
735a0e33 | 4058 | |
032713aa NC |
4059 | TIMEVAR (regmove_time, regmove_optimize (insns, max_reg_num (), |
4060 | rtl_dump_file)); | |
735a0e33 | 4061 | |
032713aa | 4062 | if (regmove_dump) |
735a0e33 UD |
4063 | { |
4064 | close_dump_file (print_rtl_with_bb, insns); | |
4065 | if (graph_dump_format != no_graph) | |
4066 | print_rtl_graph_with_bb (dump_base_name, ".regmove", insns); | |
4067 | } | |
032713aa | 4068 | } |
8c660648 | 4069 | |
4291d9c8 RS |
4070 | /* Print function header into sched dump now |
4071 | because doing the sched analysis makes some of the dump. */ | |
4072 | ||
4291d9c8 RS |
4073 | if (optimize > 0 && flag_schedule_insns) |
4074 | { | |
032713aa NC |
4075 | if (sched_dump) |
4076 | open_dump_file (".sched", decl_printable_name (decl, 2)); | |
735a0e33 | 4077 | |
4291d9c8 RS |
4078 | /* Do control and data sched analysis, |
4079 | and write some of the results to dump file. */ | |
4080 | ||
032713aa | 4081 | TIMEVAR (sched_time, schedule_insns (rtl_dump_file)); |
735a0e33 | 4082 | |
032713aa | 4083 | /* Dump rtl after instruction scheduling. */ |
735a0e33 | 4084 | |
032713aa | 4085 | if (sched_dump) |
735a0e33 UD |
4086 | { |
4087 | close_dump_file (print_rtl_with_bb, insns); | |
4088 | if (graph_dump_format != no_graph) | |
4089 | print_rtl_graph_with_bb (dump_base_name, ".sched", insns); | |
4090 | } | |
4291d9c8 RS |
4091 | } |
4092 | ||
54ff41b7 JW |
4093 | /* Determine if the current function is a leaf before running reload |
4094 | since this can impact optimizations done by the prologue and | |
4095 | epilogue thus changing register elimination offsets. */ | |
4096 | current_function_is_leaf = leaf_function_p (); | |
4097 | ||
4291d9c8 | 4098 | /* Unless we did stupid register allocation, |
3f1b9b1b JL |
4099 | allocate pseudo-regs that are used only within 1 basic block. |
4100 | ||
4101 | RUN_JUMP_AFTER_RELOAD records whether or not we need to rerun the | |
4102 | jump optimizer after register allocation and reloading are finished. */ | |
4291d9c8 RS |
4103 | |
4104 | if (!obey_regdecls) | |
4105 | TIMEVAR (local_alloc_time, | |
4106 | { | |
213c4983 | 4107 | recompute_reg_usage (insns, ! optimize_size); |
4291d9c8 | 4108 | regclass (insns, max_reg_num ()); |
c4403371 | 4109 | rebuild_label_notes_after_reload = local_alloc (); |
4291d9c8 | 4110 | }); |
3f1b9b1b | 4111 | else |
c4403371 | 4112 | rebuild_label_notes_after_reload = 0; |
4291d9c8 RS |
4113 | |
4114 | /* Dump rtl code after allocating regs within basic blocks. */ | |
4115 | ||
4116 | if (local_reg_dump) | |
032713aa NC |
4117 | { |
4118 | open_dump_file (".lreg", decl_printable_name (decl, 2)); | |
735a0e33 | 4119 | |
032713aa NC |
4120 | TIMEVAR (dump_time, dump_flow_info (rtl_dump_file)); |
4121 | TIMEVAR (dump_time, dump_local_alloc (rtl_dump_file)); | |
735a0e33 | 4122 | |
032713aa | 4123 | close_dump_file (print_rtl_with_bb, insns); |
735a0e33 UD |
4124 | if (graph_dump_format != no_graph) |
4125 | print_rtl_graph_with_bb (dump_base_name, ".lreg", insns); | |
032713aa | 4126 | } |
4291d9c8 RS |
4127 | |
4128 | if (global_reg_dump) | |
032713aa | 4129 | open_dump_file (".greg", decl_printable_name (decl, 2)); |
4291d9c8 RS |
4130 | |
4131 | /* Unless we did stupid register allocation, | |
4132 | allocate remaining pseudo-regs, then do the reload pass | |
4133 | fixing up any insns that are invalid. */ | |
4134 | ||
4135 | TIMEVAR (global_alloc_time, | |
4136 | { | |
4137 | if (!obey_regdecls) | |
032713aa | 4138 | failure = global_alloc (rtl_dump_file); |
4291d9c8 | 4139 | else |
032713aa | 4140 | failure = reload (insns, 0, rtl_dump_file); |
4291d9c8 RS |
4141 | }); |
4142 | ||
4291d9c8 | 4143 | |
ab40ad2b RS |
4144 | if (failure) |
4145 | goto exit_rest_of_compilation; | |
4146 | ||
c8ed219d RK |
4147 | /* Do a very simple CSE pass over just the hard registers. */ |
4148 | if (optimize > 0) | |
4149 | reload_cse_regs (insns); | |
4150 | ||
c4403371 JL |
4151 | /* Register allocation and reloading may have turned an indirect jump into |
4152 | a direct jump. If so, we must rebuild the JUMP_LABEL fields of | |
4153 | jumping instructions. */ | |
4154 | if (rebuild_label_notes_after_reload) | |
4155 | TIMEVAR (jump_time, rebuild_jump_labels (insns)); | |
4156 | ||
45c85c4e JL |
4157 | /* If optimizing and we are performing instruction scheduling after |
4158 | reload, then go ahead and split insns now since we are about to | |
4159 | recompute flow information anyway. | |
4160 | ||
4161 | reload_cse_regs may expose more splitting opportunities, expecially | |
4162 | for double-word operations. */ | |
4163 | if (optimize > 0 && flag_schedule_insns_after_reload) | |
4164 | { | |
4165 | rtx insn; | |
4166 | ||
4167 | for (insn = insns; insn; insn = NEXT_INSN (insn)) | |
4168 | { | |
4169 | rtx last; | |
4170 | ||
4171 | if (GET_RTX_CLASS (GET_CODE (insn)) != 'i') | |
4172 | continue; | |
4173 | ||
4174 | last = try_split (PATTERN (insn), insn, 1); | |
4175 | ||
4176 | if (last != insn) | |
4177 | { | |
4178 | PUT_CODE (insn, NOTE); | |
4179 | NOTE_SOURCE_FILE (insn) = 0; | |
4180 | NOTE_LINE_NUMBER (insn) = NOTE_INSN_DELETED; | |
4181 | } | |
4182 | } | |
4183 | } | |
4184 | ||
e881bb1b RH |
4185 | if (global_reg_dump) |
4186 | { | |
4187 | TIMEVAR (dump_time, dump_global_regs (rtl_dump_file)); | |
4188 | close_dump_file (print_rtl_with_bb, insns); | |
4189 | if (graph_dump_format != no_graph) | |
4190 | print_rtl_graph_with_bb (dump_base_name, ".greg", insns); | |
4191 | } | |
4192 | ||
6764d250 | 4193 | /* Re-create the death notes which were deleted during reload. */ |
e881bb1b RH |
4194 | if (flow2_dump) |
4195 | open_dump_file (".flow2", decl_printable_name (decl, 2)); | |
4196 | ||
6764d250 | 4197 | if (optimize) |
e881bb1b RH |
4198 | { |
4199 | TIMEVAR | |
4200 | (flow2_time, | |
4201 | { | |
359da67d | 4202 | find_basic_blocks (insns, max_reg_num (), rtl_dump_file, 1); |
11f246f6 | 4203 | life_analysis (insns, max_reg_num (), rtl_dump_file, 1); |
e881bb1b RH |
4204 | }); |
4205 | } | |
6764d250 | 4206 | |
56744d1a JL |
4207 | flow2_completed = 1; |
4208 | ||
bdac5f58 TW |
4209 | /* On some machines, the prologue and epilogue code, or parts thereof, |
4210 | can be represented as RTL. Doing so lets us schedule insns between | |
4211 | it and the rest of the code and also allows delayed branch | |
4212 | scheduling to operate in the epilogue. */ | |
4213 | ||
4214 | thread_prologue_and_epilogue_insns (insns); | |
4215 | ||
e881bb1b | 4216 | if (flow2_dump) |
9ec36da5 | 4217 | { |
9ec36da5 | 4218 | close_dump_file (print_rtl_with_bb, insns); |
735a0e33 | 4219 | if (graph_dump_format != no_graph) |
e881bb1b | 4220 | print_rtl_graph_with_bb (dump_base_name, ".flow2", insns); |
9ec36da5 | 4221 | } |
e881bb1b | 4222 | |
ede7cd44 RH |
4223 | #ifdef HAVE_peephole2 |
4224 | if (optimize > 0 && flag_peephole2) | |
4225 | { | |
4226 | if (peephole2_dump) | |
4227 | open_dump_file (".peephole2", decl_printable_name (decl, 2)); | |
4228 | ||
4229 | peephole2_optimize (rtl_dump_file); | |
4230 | ||
4231 | if (peephole2_dump) | |
4232 | { | |
4233 | close_dump_file (print_rtl_with_bb, insns); | |
4234 | if (graph_dump_format != no_graph) | |
4235 | print_rtl_graph_with_bb (dump_base_name, ".peephole2", insns); | |
4236 | } | |
4237 | } | |
4238 | #endif | |
4239 | ||
4291d9c8 RS |
4240 | if (optimize > 0 && flag_schedule_insns_after_reload) |
4241 | { | |
4242 | if (sched2_dump) | |
032713aa | 4243 | open_dump_file (".sched2", decl_printable_name (decl, 2)); |
4291d9c8 RS |
4244 | |
4245 | /* Do control and data sched analysis again, | |
4246 | and write some more of the results to dump file. */ | |
4247 | ||
032713aa | 4248 | TIMEVAR (sched2_time, schedule_insns (rtl_dump_file)); |
4291d9c8 RS |
4249 | |
4250 | /* Dump rtl after post-reorder instruction scheduling. */ | |
4251 | ||
4252 | if (sched2_dump) | |
735a0e33 UD |
4253 | { |
4254 | close_dump_file (print_rtl_with_bb, insns); | |
4255 | if (graph_dump_format != no_graph) | |
4256 | print_rtl_graph_with_bb (dump_base_name, ".sched2", insns); | |
4257 | } | |
4291d9c8 RS |
4258 | } |
4259 | ||
4260 | #ifdef LEAF_REGISTERS | |
5ad9b85f JW |
4261 | current_function_uses_only_leaf_regs |
4262 | = optimize > 0 && only_leaf_regs_used () && leaf_function_p (); | |
4291d9c8 RS |
4263 | #endif |
4264 | ||
4265 | /* One more attempt to remove jumps to .+1 | |
4266 | left by dead-store-elimination. | |
4267 | Also do cross-jumping this time | |
4268 | and delete no-op move insns. */ | |
4269 | ||
4270 | if (optimize > 0) | |
4271 | { | |
14bf4a33 MM |
4272 | TIMEVAR (jump_time, jump_optimize (insns, JUMP_CROSS_JUMP, |
4273 | JUMP_NOOP_MOVES, | |
4274 | !JUMP_AFTER_REGSCAN)); | |
735a0e33 | 4275 | |
032713aa | 4276 | /* Dump rtl code after jump, if we are doing that. */ |
4291d9c8 | 4277 | |
032713aa | 4278 | if (jump2_opt_dump) |
735a0e33 UD |
4279 | { |
4280 | dump_rtl (".jump2", decl, print_rtl_with_bb, insns); | |
4281 | if (graph_dump_format != no_graph) | |
4282 | print_rtl_graph_with_bb (dump_base_name, ".jump2", insns); | |
4283 | } | |
032713aa | 4284 | } |
4291d9c8 | 4285 | |
2c65021a RK |
4286 | /* If a machine dependent reorganization is needed, call it. */ |
4287 | #ifdef MACHINE_DEPENDENT_REORG | |
88924698 NC |
4288 | if (mach_dep_reorg_dump) |
4289 | open_dump_file (".mach", decl_printable_name (decl, 2)); | |
4290 | ||
2c65021a | 4291 | MACHINE_DEPENDENT_REORG (insns); |
032713aa NC |
4292 | |
4293 | if (mach_dep_reorg_dump) | |
735a0e33 | 4294 | { |
88924698 | 4295 | close_dump_file (print_rtl_with_bb, insns); |
735a0e33 UD |
4296 | if (graph_dump_format != no_graph) |
4297 | print_rtl_graph_with_bb (dump_base_name, ".mach", insns); | |
4298 | } | |
2c65021a RK |
4299 | #endif |
4300 | ||
4291d9c8 | 4301 | /* If a scheduling pass for delayed branches is to be done, |
0f41302f | 4302 | call the scheduling code. */ |
4291d9c8 RS |
4303 | |
4304 | #ifdef DELAY_SLOTS | |
4305 | if (optimize > 0 && flag_delayed_branch) | |
4306 | { | |
bbd2180d JL |
4307 | if (dbr_sched_dump) |
4308 | open_dump_file (".dbr", decl_printable_name (decl, 2)); | |
4309 | ||
01898d58 | 4310 | TIMEVAR (dbr_sched_time, dbr_schedule (insns, rtl_dump_file)); |
735a0e33 | 4311 | |
4291d9c8 | 4312 | if (dbr_sched_dump) |
735a0e33 | 4313 | { |
bbd2180d | 4314 | close_dump_file (print_rtl_with_bb, insns); |
735a0e33 UD |
4315 | if (graph_dump_format != no_graph) |
4316 | print_rtl_graph_with_bb (dump_base_name, ".dbr", insns); | |
4317 | } | |
4291d9c8 RS |
4318 | } |
4319 | #endif | |
4320 | ||
d0c874f6 TG |
4321 | /* Shorten branches. */ |
4322 | TIMEVAR (shorten_branch_time, | |
4323 | { | |
4324 | shorten_branches (get_insns ()); | |
4325 | }); | |
4291d9c8 RS |
4326 | |
4327 | #ifdef STACK_REGS | |
25ba7583 JL |
4328 | if (stack_reg_dump) |
4329 | open_dump_file (".stack", decl_printable_name (decl, 2)); | |
4330 | ||
01898d58 | 4331 | TIMEVAR (stack_reg_time, reg_to_stack (insns, rtl_dump_file)); |
032713aa | 4332 | |
4291d9c8 | 4333 | if (stack_reg_dump) |
735a0e33 UD |
4334 | { |
4335 | dump_rtl (".stack", decl, print_rtl_with_bb, insns); | |
4336 | if (graph_dump_format != no_graph) | |
4337 | print_rtl_graph_with_bb (dump_base_name, ".stack", insns); | |
4338 | } | |
4291d9c8 RS |
4339 | #endif |
4340 | ||
4341 | /* Now turn the rtl into assembler code. */ | |
4342 | ||
4343 | TIMEVAR (final_time, | |
4344 | { | |
4345 | rtx x; | |
4346 | char *fnname; | |
4347 | ||
4348 | /* Get the function's name, as described by its RTL. | |
4349 | This may be different from the DECL_NAME name used | |
4350 | in the source file. */ | |
4351 | ||
4352 | x = DECL_RTL (decl); | |
4353 | if (GET_CODE (x) != MEM) | |
4354 | abort (); | |
4355 | x = XEXP (x, 0); | |
4356 | if (GET_CODE (x) != SYMBOL_REF) | |
4357 | abort (); | |
4358 | fnname = XSTR (x, 0); | |
4359 | ||
4360 | assemble_start_function (decl, fnname); | |
4361 | final_start_function (insns, asm_out_file, optimize); | |
4362 | final (insns, asm_out_file, optimize, 0); | |
4363 | final_end_function (insns, asm_out_file, optimize); | |
4364 | assemble_end_function (decl, fnname); | |
e5e809f4 JL |
4365 | if (! quiet_flag) |
4366 | fflush (asm_out_file); | |
9ddca353 | 4367 | |
e881bb1b RH |
4368 | /* Release all memory allocated by flow. */ |
4369 | free_basic_block_vars (0); | |
4370 | ||
9ddca353 RK |
4371 | /* Release all memory held by regsets now */ |
4372 | regset_release_memory (); | |
4291d9c8 RS |
4373 | }); |
4374 | ||
4375 | /* Write DBX symbols if requested */ | |
4376 | ||
4377 | /* Note that for those inline functions where we don't initially | |
4378 | know for certain that we will be generating an out-of-line copy, | |
4379 | the first invocation of this routine (rest_of_compilation) will | |
4380 | skip over this code by doing a `goto exit_rest_of_compilation;'. | |
4381 | Later on, finish_compilation will call rest_of_compilation again | |
4382 | for those inline functions that need to have out-of-line copies | |
4383 | generated. During that call, we *will* be routed past here. */ | |
4384 | ||
4385 | #ifdef DBX_DEBUGGING_INFO | |
4386 | if (write_symbols == DBX_DEBUG) | |
4387 | TIMEVAR (symout_time, dbxout_function (decl)); | |
4388 | #endif | |
4389 | ||
4390 | #ifdef DWARF_DEBUGGING_INFO | |
4391 | if (write_symbols == DWARF_DEBUG) | |
4392 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
4393 | #endif | |
4394 | ||
9a666dda JM |
4395 | #ifdef DWARF2_DEBUGGING_INFO |
4396 | if (write_symbols == DWARF2_DEBUG) | |
88dad228 | 4397 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
9a666dda JM |
4398 | #endif |
4399 | ||
4291d9c8 RS |
4400 | exit_rest_of_compilation: |
4401 | ||
e881bb1b | 4402 | free_bb_mem (); |
421382ac | 4403 | |
f246a305 RS |
4404 | /* In case the function was not output, |
4405 | don't leave any temporary anonymous types | |
4406 | queued up for sdb output. */ | |
4407 | #ifdef SDB_DEBUGGING_INFO | |
4408 | if (write_symbols == SDB_DEBUG) | |
37366632 | 4409 | sdbout_types (NULL_TREE); |
f246a305 RS |
4410 | #endif |
4411 | ||
8a958768 RS |
4412 | /* Put back the tree of subblocks and list of arguments |
4413 | from before we copied them. | |
4291d9c8 RS |
4414 | Code generation and the output of debugging info may have modified |
4415 | the copy, but the original is unchanged. */ | |
4416 | ||
4417 | if (saved_block_tree != 0) | |
fb19c456 JM |
4418 | { |
4419 | DECL_INITIAL (decl) = saved_block_tree; | |
4420 | DECL_ARGUMENTS (decl) = saved_arguments; | |
4421 | DECL_ABSTRACT_ORIGIN (decl) = NULL_TREE; | |
4422 | } | |
4291d9c8 RS |
4423 | |
4424 | reload_completed = 0; | |
56744d1a | 4425 | flow2_completed = 0; |
f1db3576 | 4426 | no_new_pseudos = 0; |
4291d9c8 | 4427 | |
32e705c4 MM |
4428 | TIMEVAR (final_time, |
4429 | { | |
4430 | /* Clear out the insn_length contents now that they are no | |
4431 | longer valid. */ | |
4432 | init_insn_lengths (); | |
4291d9c8 | 4433 | |
32e705c4 MM |
4434 | /* Clear out the real_constant_chain before some of the rtx's |
4435 | it runs through become garbage. */ | |
4436 | clear_const_double_mem (); | |
4291d9c8 | 4437 | |
32e705c4 MM |
4438 | /* Cancel the effect of rtl_in_current_obstack. */ |
4439 | resume_temporary_allocation (); | |
adcd38c9 | 4440 | |
32e705c4 MM |
4441 | /* Show no temporary slots allocated. */ |
4442 | init_temp_slots (); | |
4443 | }); | |
adcd38c9 | 4444 | |
c8d86b9a JW |
4445 | /* Make sure volatile mem refs aren't considered valid operands for |
4446 | arithmetic insns. We must call this here if this is a nested inline | |
4447 | function, since the above code leaves us in the init_recog state | |
4448 | (from final.c), and the function context push/pop code does not | |
4449 | save/restore volatile_ok. | |
4450 | ||
4451 | ??? Maybe it isn't necessary for expand_start_function to call this | |
4452 | anymore if we do it here? */ | |
4453 | ||
4454 | init_recog_no_volatile (); | |
4455 | ||
e2ecd91c BS |
4456 | /* We're done with this function. */ |
4457 | if (! DECL_DEFER_OUTPUT (decl)) | |
4458 | free_after_compilation (current_function); | |
4459 | ||
4291d9c8 RS |
4460 | /* The parsing time is all the time spent in yyparse |
4461 | *except* what is spent in this function. */ | |
4462 | ||
4463 | parse_time -= get_run_time () - start_time; | |
735a0e33 UD |
4464 | |
4465 | /* Reset global variables. */ | |
4466 | free_basic_block_vars (0); | |
4291d9c8 RS |
4467 | } |
4468 | \f | |
b8468bc7 NC |
4469 | static void |
4470 | display_help () | |
4471 | { | |
4472 | int undoc; | |
114791ea | 4473 | unsigned long i; |
87e11268 | 4474 | const char * lang; |
b8468bc7 | 4475 | |
40f943dd | 4476 | #ifndef USE_CPPLIB |
b8468bc7 NC |
4477 | printf ("Usage: %s input [switches]\n", progname); |
4478 | printf ("Switches:\n"); | |
40f943dd | 4479 | #endif |
b8468bc7 NC |
4480 | printf (" -ffixed-<register> Mark <register> as being unavailable to the compiler\n"); |
4481 | printf (" -fcall-used-<register> Mark <register> as being corrupted by function calls\n"); | |
4482 | printf (" -fcall-saved-<register> Mark <register> as being preserved across functions\n"); | |
efa3896a | 4483 | printf (" -finline-limit=<number> Limits the size of inlined functions to <number>\n"); |
b8468bc7 NC |
4484 | |
4485 | for (i = NUM_ELEM (f_options); i--;) | |
4486 | { | |
87e11268 | 4487 | const char * description = f_options[i].description; |
b8468bc7 NC |
4488 | |
4489 | if (description != NULL && * description != 0) | |
4490 | printf (" -f%-21s %s\n", | |
4491 | f_options[i].string, description); | |
4492 | } | |
4493 | ||
4494 | printf (" -O[number] Set optimisation level to [number]\n"); | |
4495 | printf (" -Os Optimise for space rather than speed\n"); | |
4496 | printf (" -pedantic Issue warnings needed by strict compliance to ANSI C\n"); | |
4497 | printf (" -pedantic-errors Like -pedantic except that errors are produced\n"); | |
4498 | printf (" -w Suppress warnings\n"); | |
4499 | printf (" -W Enable extra warnings\n"); | |
4500 | ||
4501 | for (i = NUM_ELEM (W_options); i--;) | |
4502 | { | |
87e11268 | 4503 | const char * description = W_options[i].description; |
b8468bc7 NC |
4504 | |
4505 | if (description != NULL && * description != 0) | |
4506 | printf (" -W%-21s %s\n", | |
4507 | W_options[i].string, description); | |
4508 | } | |
4509 | ||
4510 | printf (" -Wid-clash-<num> Warn if 2 identifiers have the same first <num> chars\n"); | |
4511 | printf (" -Wlarger-than-<number> Warn if an object is larger than <number> bytes\n"); | |
4512 | printf (" -p Enable function profiling\n"); | |
4513 | #if defined (BLOCK_PROFILER) || defined (FUNCTION_BLOCK_PROFILER) | |
4514 | printf (" -a Enable block profiling \n"); | |
4515 | #endif | |
4516 | #if defined (BLOCK_PROFILER) || defined (FUNCTION_BLOCK_PROFILER) || defined FUNCTION_BLOCK_PROFILER_EXIT | |
4517 | printf (" -ax Enable jump profiling \n"); | |
4518 | #endif | |
4519 | printf (" -o <file> Place output into <file> \n"); | |
4520 | printf (" -G <number> Put global and static data smaller than <number>\n"); | |
40f943dd | 4521 | printf (" bytes into a special section (on some targets)\n"); |
b8468bc7 NC |
4522 | |
4523 | for (i = NUM_ELEM (debug_args); i--;) | |
4524 | { | |
4525 | if (debug_args[i].description != NULL) | |
4526 | printf (" -%-22s %s\n", debug_args[i].arg, debug_args[i].description); | |
4527 | } | |
4528 | ||
4529 | printf (" -aux-info <file> Emit declaration info into <file>.X\n"); | |
4530 | printf (" -quiet Do not display functions compiled or elapsed time\n"); | |
4531 | printf (" -version Display the compiler's version\n"); | |
4532 | printf (" -d[letters] Enable dumps from specific passes of the compiler\n"); | |
4533 | printf (" -dumpbase <file> Base name to be used for dumps from specific passes\n"); | |
7b5efe21 | 4534 | #if defined INSN_SCHEDULING |
efa3896a | 4535 | printf (" -sched-verbose=<number> Set the verbosity level of the scheduler\n"); |
b8468bc7 NC |
4536 | #endif |
4537 | printf (" --help Display this information\n"); | |
4538 | ||
4539 | undoc = 0; | |
4540 | lang = "language"; | |
4541 | ||
4542 | /* Display descriptions of language specific options. | |
4543 | If there is no description, note that there is an undocumented option. | |
4544 | If the description is empty, do not display anything. (This allows | |
4545 | options to be deliberately undocumented, for whatever reason). | |
4546 | If the option string is missing, then this is a marker, indicating | |
630962bf | 4547 | that the description string is in fact the name of a language, whose |
b8468bc7 NC |
4548 | language specific options are to follow. */ |
4549 | ||
4550 | if (NUM_ELEM (documented_lang_options) > 1) | |
4551 | { | |
b8468bc7 NC |
4552 | printf ("\nLanguage specific options:\n"); |
4553 | ||
4554 | for (i = 0; i < NUM_ELEM (documented_lang_options); i++) | |
4555 | { | |
87e11268 KG |
4556 | const char * description = documented_lang_options[i].description; |
4557 | const char * option = documented_lang_options[i].option; | |
b8468bc7 NC |
4558 | |
4559 | if (description == NULL) | |
844642e6 NC |
4560 | { |
4561 | undoc = 1; | |
4562 | ||
4563 | if (extra_warnings) | |
4564 | printf (" %-23.23s [undocumented]\n", option); | |
4565 | } | |
b8468bc7 NC |
4566 | else if (* description == 0) |
4567 | continue; | |
4568 | else if (option == NULL) | |
4569 | { | |
4570 | if (undoc) | |
4571 | printf | |
4572 | ("\nThere are undocumented %s specific options as well.\n", | |
4573 | lang); | |
4574 | undoc = 0; | |
4575 | ||
4576 | printf ("\n Options for %s:\n", description); | |
4577 | ||
4578 | lang = description; | |
4579 | } | |
4580 | else | |
4581 | printf (" %-23.23s %s\n", option, description); | |
4582 | } | |
4583 | } | |
4584 | ||
4585 | if (undoc) | |
4586 | printf ("\nThere are undocumented %s specific options as well.\n", lang); | |
4587 | ||
4588 | if (NUM_ELEM (target_switches) > 1 | |
4589 | #ifdef TARGET_OPTIONS | |
4590 | || NUM_ELEM (target_options) > 1 | |
4591 | #endif | |
4592 | ) | |
4593 | { | |
4594 | int doc = 0; | |
4595 | ||
4596 | undoc = 0; | |
4597 | ||
4598 | printf ("\nTarget specific options:\n"); | |
4599 | ||
4600 | for (i = NUM_ELEM (target_switches); i--;) | |
4601 | { | |
87e11268 KG |
4602 | const char * option = target_switches[i].name; |
4603 | const char * description = target_switches[i].description; | |
b8468bc7 | 4604 | |
844642e6 | 4605 | if (option == NULL || * option == 0) |
b8468bc7 NC |
4606 | continue; |
4607 | else if (description == NULL) | |
844642e6 NC |
4608 | { |
4609 | undoc = 1; | |
4610 | ||
4611 | if (extra_warnings) | |
4612 | printf (" -m%-21.21s [undocumented]\n", option); | |
4613 | } | |
b8468bc7 | 4614 | else if (* description != 0) |
1f50b029 | 4615 | doc += printf (" -m%-21.21s %s\n", option, description); |
b8468bc7 NC |
4616 | } |
4617 | ||
4618 | #ifdef TARGET_OPTIONS | |
4619 | for (i = NUM_ELEM (target_options); i--;) | |
4620 | { | |
87e11268 KG |
4621 | const char * option = target_options[i].prefix; |
4622 | const char * description = target_options[i].description; | |
b8468bc7 | 4623 | |
844642e6 | 4624 | if (option == NULL || * option == 0) |
b8468bc7 NC |
4625 | continue; |
4626 | else if (description == NULL) | |
844642e6 NC |
4627 | { |
4628 | undoc = 1; | |
4629 | ||
4630 | if (extra_warnings) | |
4631 | printf (" -m%-21.21s [undocumented]\n", option); | |
4632 | } | |
b8468bc7 | 4633 | else if (* description != 0) |
1f50b029 | 4634 | doc += printf (" -m%-21.21s %s\n", option, description); |
b8468bc7 NC |
4635 | } |
4636 | #endif | |
4637 | if (undoc) | |
ff59bfe6 JM |
4638 | { |
4639 | if (doc) | |
4640 | printf ("\nThere are undocumented target specific options as well.\n"); | |
4641 | else | |
4642 | printf (" They exist, but they are not documented.\n"); | |
4643 | } | |
b8468bc7 NC |
4644 | } |
4645 | } | |
4646 | ||
4647 | /* Compare the user specified 'option' with the language | |
4648 | specific 'lang_option'. Return true if they match, or | |
4649 | if 'option' is a viable prefix of 'lang_option'. */ | |
4650 | ||
4651 | static int | |
4652 | check_lang_option (option, lang_option) | |
4653 | char * option; | |
4654 | char * lang_option; | |
4655 | { | |
4656 | lang_independent_options * indep_options; | |
4657 | int len; | |
4658 | long k; | |
1f50b029 NC |
4659 | char * space; |
4660 | ||
b8468bc7 NC |
4661 | /* Ignore NULL entries. */ |
4662 | if (option == NULL || lang_option == NULL) | |
4663 | return 0; | |
4664 | ||
1f50b029 NC |
4665 | if ((space = strchr (lang_option, ' ')) != NULL) |
4666 | len = space - lang_option; | |
4667 | else | |
4668 | len = strlen (lang_option); | |
4669 | ||
b8468bc7 NC |
4670 | /* If they do not match to the first n characters then fail. */ |
4671 | if (strncmp (option, lang_option, len) != 0) | |
4672 | return 0; | |
1f50b029 | 4673 | |
b8468bc7 NC |
4674 | /* Do not accept a lang option, if it matches a normal -f or -W |
4675 | option. Chill defines a -fpack, but we want to support | |
4676 | -fpack-struct. */ | |
1f50b029 | 4677 | |
b8468bc7 | 4678 | /* An exact match is OK */ |
79c9824e | 4679 | if ((int) strlen (option) == len) |
b8468bc7 | 4680 | return 1; |
1f50b029 | 4681 | |
b8468bc7 NC |
4682 | /* If it is not an -f or -W option allow the match */ |
4683 | if (option[0] != '-') | |
4684 | return 1; | |
1f50b029 | 4685 | |
b8468bc7 NC |
4686 | switch (option[1]) |
4687 | { | |
4688 | case 'f': indep_options = f_options; break; | |
4689 | case 'W': indep_options = W_options; break; | |
4690 | default: return 1; | |
4691 | } | |
1f50b029 | 4692 | |
b8468bc7 NC |
4693 | /* The option is a -f or -W option. |
4694 | Skip past the prefix and search for the remainder in the | |
4695 | appropriate table of options. */ | |
4696 | option += 2; | |
1f50b029 | 4697 | |
b8468bc7 NC |
4698 | if (option[0] == 'n' && option[1] == 'o' && option[2] == '-') |
4699 | option += 3; | |
1f50b029 | 4700 | |
b8468bc7 NC |
4701 | for (k = NUM_ELEM (indep_options); k--;) |
4702 | { | |
4703 | if (!strcmp (option, indep_options[k].string)) | |
4704 | { | |
4705 | /* The option matched a language independent option, | |
4706 | do not allow the language specific match. */ | |
1f50b029 | 4707 | |
b8468bc7 NC |
4708 | return 0; |
4709 | } | |
4710 | } | |
1f50b029 | 4711 | |
b8468bc7 NC |
4712 | /* The option matches the start of the langauge specific option |
4713 | and it is not an exact match for a language independent option. */ | |
4714 | return 1; | |
4715 | } | |
4716 | \f | |
4291d9c8 RS |
4717 | /* Entry point of cc1/c++. Decode command args, then call compile_file. |
4718 | Exit code is 35 if can't open files, 34 if fatal error, | |
4719 | 33 if had nonfatal errors, else success. */ | |
4720 | ||
4721 | int | |
114791ea | 4722 | main (argc, argv) |
4291d9c8 RS |
4723 | int argc; |
4724 | char **argv; | |
4291d9c8 RS |
4725 | { |
4726 | register int i; | |
4727 | char *filename = 0; | |
4728 | int flag_print_mem = 0; | |
4729 | int version_flag = 0; | |
4730 | char *p; | |
4731 | ||
4732 | /* save in case md file wants to emit args as a comment. */ | |
4733 | save_argc = argc; | |
4734 | save_argv = argv; | |
4735 | ||
4736 | p = argv[0] + strlen (argv[0]); | |
128373ac RK |
4737 | while (p != argv[0] && p[-1] != '/' |
4738 | #ifdef DIR_SEPARATOR | |
4739 | && p[-1] != DIR_SEPARATOR | |
4740 | #endif | |
4741 | ) | |
4742 | --p; | |
4291d9c8 RS |
4743 | progname = p; |
4744 | ||
08ce3276 | 4745 | #if defined (RLIMIT_STACK) && defined (HAVE_GETRLIMIT) && defined (HAVE_SETRLIMIT) |
4291d9c8 RS |
4746 | /* Get rid of any avoidable limit on stack size. */ |
4747 | { | |
4748 | struct rlimit rlim; | |
4749 | ||
0f41302f | 4750 | /* Set the stack limit huge so that alloca does not fail. */ |
4291d9c8 RS |
4751 | getrlimit (RLIMIT_STACK, &rlim); |
4752 | rlim.rlim_cur = rlim.rlim_max; | |
4753 | setrlimit (RLIMIT_STACK, &rlim); | |
4754 | } | |
c85f7c16 | 4755 | #endif |
4291d9c8 | 4756 | |
d9b53430 | 4757 | #ifdef HAVE_LC_MESSAGES |
ab87f8c8 | 4758 | setlocale (LC_MESSAGES, ""); |
d9b53430 | 4759 | #endif |
735396d9 KG |
4760 | (void) bindtextdomain (PACKAGE, localedir); |
4761 | (void) textdomain (PACKAGE); | |
ab87f8c8 | 4762 | |
4291d9c8 RS |
4763 | signal (SIGFPE, float_signal); |
4764 | ||
935d4b07 | 4765 | #ifdef SIGPIPE |
4291d9c8 | 4766 | signal (SIGPIPE, pipe_closed); |
935d4b07 | 4767 | #endif |
4291d9c8 RS |
4768 | |
4769 | decl_printable_name = decl_name; | |
114791ea | 4770 | lang_expand_expr = (lang_expand_expr_t) do_abort; |
4291d9c8 RS |
4771 | |
4772 | /* Initialize whether `char' is signed. */ | |
4773 | flag_signed_char = DEFAULT_SIGNED_CHAR; | |
4774 | #ifdef DEFAULT_SHORT_ENUMS | |
4775 | /* Initialize how much space enums occupy, by default. */ | |
4776 | flag_short_enums = DEFAULT_SHORT_ENUMS; | |
4777 | #endif | |
4778 | ||
b53beeb2 RH |
4779 | /* Perform language-specific options intialization. */ |
4780 | lang_init_options (); | |
4781 | ||
4291d9c8 RS |
4782 | /* Scan to see what optimization level has been specified. That will |
4783 | determine the default value of many flags. */ | |
4784 | for (i = 1; i < argc; i++) | |
4785 | { | |
4786 | if (!strcmp (argv[i], "-O")) | |
4787 | { | |
4788 | optimize = 1; | |
16b6e120 | 4789 | optimize_size = 0; |
4291d9c8 RS |
4790 | } |
4791 | else if (argv[i][0] == '-' && argv[i][1] == 'O') | |
4792 | { | |
c6aded7c | 4793 | /* Handle -Os, -O2, -O3, -O69, ... */ |
4291d9c8 | 4794 | char *p = &argv[i][2]; |
c6aded7c AG |
4795 | |
4796 | if ((p[0] == 's') && (p[1] == 0)) | |
16b6e120 NC |
4797 | { |
4798 | optimize_size = 1; | |
4799 | ||
4800 | /* Optimizing for size forces optimize to be 2. */ | |
4801 | optimize = 2; | |
4802 | } | |
c6aded7c AG |
4803 | else |
4804 | { | |
192babfd TP |
4805 | const int optimize_val = read_integral_parameter (p, p - 2, -1); |
4806 | if (optimize_val != -1) | |
16b6e120 | 4807 | { |
192babfd | 4808 | optimize = optimize_val; |
16b6e120 NC |
4809 | optimize_size = 0; |
4810 | } | |
c6aded7c | 4811 | } |
4291d9c8 RS |
4812 | } |
4813 | } | |
4814 | ||
4815 | obey_regdecls = (optimize == 0); | |
4291d9c8 RS |
4816 | |
4817 | if (optimize >= 1) | |
4818 | { | |
6731a3e3 | 4819 | flag_defer_pop = 1; |
4291d9c8 RS |
4820 | flag_thread_jumps = 1; |
4821 | #ifdef DELAY_SLOTS | |
4822 | flag_delayed_branch = 1; | |
7e89c3a3 RK |
4823 | #endif |
4824 | #ifdef CAN_DEBUG_WITHOUT_FP | |
4825 | flag_omit_frame_pointer = 1; | |
4291d9c8 RS |
4826 | #endif |
4827 | } | |
4828 | ||
4829 | if (optimize >= 2) | |
4830 | { | |
4831 | flag_cse_follow_jumps = 1; | |
8b3686ed | 4832 | flag_cse_skip_blocks = 1; |
7506f491 | 4833 | flag_gcse = 1; |
4291d9c8 RS |
4834 | flag_expensive_optimizations = 1; |
4835 | flag_strength_reduce = 1; | |
4836 | flag_rerun_cse_after_loop = 1; | |
6d6d0fa0 | 4837 | flag_rerun_loop_opt = 1; |
ac266247 | 4838 | flag_caller_saves = 1; |
4ac8e06e | 4839 | flag_force_mem = 1; |
ede7cd44 | 4840 | flag_peephole2 = 1; |
4291d9c8 RS |
4841 | #ifdef INSN_SCHEDULING |
4842 | flag_schedule_insns = 1; | |
4843 | flag_schedule_insns_after_reload = 1; | |
4844 | #endif | |
8c660648 | 4845 | flag_regmove = 1; |
3f9a83a9 | 4846 | flag_strict_aliasing = 1; |
4291d9c8 RS |
4847 | } |
4848 | ||
7e89c3a3 RK |
4849 | if (optimize >= 3) |
4850 | { | |
4851 | flag_inline_functions = 1; | |
4852 | } | |
4853 | ||
efa3896a GK |
4854 | if (optimize < 2 || optimize_size) |
4855 | { | |
4856 | align_loops = 1; | |
4857 | align_jumps = 1; | |
4858 | align_labels = 1; | |
4859 | align_functions = 1; | |
4860 | } | |
4861 | ||
c1da383f DE |
4862 | /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can |
4863 | modify it. */ | |
4864 | target_flags = 0; | |
4865 | set_target_switch (""); | |
4866 | ||
4291d9c8 RS |
4867 | #ifdef OPTIMIZATION_OPTIONS |
4868 | /* Allow default optimizations to be specified on a per-machine basis. */ | |
c6aded7c | 4869 | OPTIMIZATION_OPTIONS (optimize, optimize_size); |
4291d9c8 RS |
4870 | #endif |
4871 | ||
4872 | /* Initialize register usage now so switches may override. */ | |
4873 | init_reg_sets (); | |
4874 | ||
4291d9c8 RS |
4875 | for (i = 1; i < argc; i++) |
4876 | { | |
85066503 | 4877 | size_t j; |
b8468bc7 | 4878 | |
b99933c7 RS |
4879 | /* If this is a language-specific option, |
4880 | decode it in a language-specific way. */ | |
b8468bc7 NC |
4881 | for (j = NUM_ELEM (documented_lang_options); j--;) |
4882 | if (check_lang_option (argv[i], documented_lang_options[j].option)) | |
b99933c7 | 4883 | break; |
b8468bc7 | 4884 | |
114791ea | 4885 | if (j != (size_t)-1) |
a0d85b75 DB |
4886 | { |
4887 | /* If the option is valid for *some* language, | |
4888 | treat it as valid even if this language doesn't understand it. */ | |
4889 | int strings_processed = lang_decode_option (argc - i, argv + i); | |
40f943dd NC |
4890 | |
4891 | if (!strcmp (argv[i], "--help")) | |
4892 | { | |
4893 | display_help (); | |
4894 | exit (0); | |
4895 | } | |
4896 | ||
a0d85b75 DB |
4897 | if (strings_processed != 0) |
4898 | i += strings_processed - 1; | |
4899 | } | |
b99933c7 | 4900 | else if (argv[i][0] == '-' && argv[i][1] != 0) |
4291d9c8 RS |
4901 | { |
4902 | register char *str = argv[i] + 1; | |
4903 | if (str[0] == 'Y') | |
4904 | str++; | |
4905 | ||
4906 | if (str[0] == 'm') | |
4907 | set_target_switch (&str[1]); | |
4908 | else if (!strcmp (str, "dumpbase")) | |
4909 | { | |
4910 | dump_base_name = argv[++i]; | |
4911 | } | |
4912 | else if (str[0] == 'd') | |
4913 | { | |
4914 | register char *p = &str[1]; | |
4915 | while (*p) | |
4916 | switch (*p++) | |
4917 | { | |
4918 | case 'a': | |
0d332add | 4919 | branch_prob_dump = 1; |
4291d9c8 | 4920 | combine_dump = 1; |
bd334356 | 4921 | #ifdef DELAY_SLOTS |
4291d9c8 | 4922 | dbr_sched_dump = 1; |
bd334356 | 4923 | #endif |
4291d9c8 | 4924 | flow_dump = 1; |
e881bb1b | 4925 | flow2_dump = 1; |
4291d9c8 RS |
4926 | global_reg_dump = 1; |
4927 | jump_opt_dump = 1; | |
e9a25f70 | 4928 | addressof_dump = 1; |
4291d9c8 RS |
4929 | jump2_opt_dump = 1; |
4930 | local_reg_dump = 1; | |
4931 | loop_dump = 1; | |
8c660648 | 4932 | regmove_dump = 1; |
4291d9c8 RS |
4933 | rtl_dump = 1; |
4934 | cse_dump = 1, cse2_dump = 1; | |
7506f491 | 4935 | gcse_dump = 1; |
4291d9c8 RS |
4936 | sched_dump = 1; |
4937 | sched2_dump = 1; | |
032713aa | 4938 | #ifdef STACK_REGS |
4291d9c8 | 4939 | stack_reg_dump = 1; |
032713aa NC |
4940 | #endif |
4941 | #ifdef MACHINE_DEPENDENT_REORG | |
4942 | mach_dep_reorg_dump = 1; | |
4943 | #endif | |
ede7cd44 | 4944 | peephole2_dump = 1; |
4291d9c8 | 4945 | break; |
f5963e61 JL |
4946 | case 'A': |
4947 | flag_debug_asm = 1; | |
4948 | break; | |
0d332add DE |
4949 | case 'b': |
4950 | branch_prob_dump = 1; | |
4951 | break; | |
4291d9c8 RS |
4952 | case 'c': |
4953 | combine_dump = 1; | |
4954 | break; | |
bd334356 | 4955 | #ifdef DELAY_SLOTS |
4291d9c8 RS |
4956 | case 'd': |
4957 | dbr_sched_dump = 1; | |
4958 | break; | |
bd334356 | 4959 | #endif |
4291d9c8 RS |
4960 | case 'f': |
4961 | flow_dump = 1; | |
4962 | break; | |
f5963e61 JL |
4963 | case 'F': |
4964 | addressof_dump = 1; | |
4965 | break; | |
4291d9c8 RS |
4966 | case 'g': |
4967 | global_reg_dump = 1; | |
7506f491 DE |
4968 | break; |
4969 | case 'G': | |
4970 | gcse_dump = 1; | |
4291d9c8 RS |
4971 | break; |
4972 | case 'j': | |
4973 | jump_opt_dump = 1; | |
4974 | break; | |
4975 | case 'J': | |
4976 | jump2_opt_dump = 1; | |
4977 | break; | |
f5963e61 JL |
4978 | #ifdef STACK_REGS |
4979 | case 'k': | |
4980 | stack_reg_dump = 1; | |
4981 | break; | |
4982 | #endif | |
4291d9c8 RS |
4983 | case 'l': |
4984 | local_reg_dump = 1; | |
4985 | break; | |
4986 | case 'L': | |
4987 | loop_dump = 1; | |
4988 | break; | |
4989 | case 'm': | |
4990 | flag_print_mem = 1; | |
4991 | break; | |
032713aa NC |
4992 | #ifdef MACHINE_DEPENDENT_REORG |
4993 | case 'M': | |
4994 | mach_dep_reorg_dump = 1; | |
4995 | break; | |
4996 | #endif | |
4291d9c8 RS |
4997 | case 'p': |
4998 | flag_print_asm_name = 1; | |
4999 | break; | |
5000 | case 'r': | |
5001 | rtl_dump = 1; | |
5002 | break; | |
f5963e61 JL |
5003 | case 'R': |
5004 | sched2_dump = 1; | |
5005 | break; | |
4291d9c8 RS |
5006 | case 's': |
5007 | cse_dump = 1; | |
5008 | break; | |
f5963e61 JL |
5009 | case 'S': |
5010 | sched_dump = 1; | |
5011 | break; | |
4291d9c8 RS |
5012 | case 't': |
5013 | cse2_dump = 1; | |
5014 | break; | |
8c660648 JL |
5015 | case 'N': |
5016 | regmove_dump = 1; | |
5017 | break; | |
735a0e33 UD |
5018 | case 'v': |
5019 | graph_dump_format = vcg; | |
5020 | break; | |
e881bb1b RH |
5021 | case 'w': |
5022 | flow2_dump = 1; | |
5023 | break; | |
ede7cd44 RH |
5024 | case 'x': |
5025 | rtl_dump_and_exit = 1; | |
5026 | break; | |
4291d9c8 RS |
5027 | case 'y': |
5028 | set_yydebug (1); | |
5029 | break; | |
ede7cd44 RH |
5030 | case 'z': |
5031 | peephole2_dump = 1; | |
4291d9c8 | 5032 | break; |
b5c7059b MM |
5033 | case 'D': /* these are handled by the preprocessor */ |
5034 | case 'I': | |
b5c7059b | 5035 | break; |
032713aa NC |
5036 | default: |
5037 | warning ("unrecognised gcc debugging option: %c", p[-1]); | |
5038 | break; | |
4291d9c8 RS |
5039 | } |
5040 | } | |
5041 | else if (str[0] == 'f') | |
5042 | { | |
4291d9c8 RS |
5043 | register char *p = &str[1]; |
5044 | int found = 0; | |
5045 | ||
5046 | /* Some kind of -f option. | |
5047 | P's value is the option sans `-f'. | |
5048 | Search for it in the table of options. */ | |
5049 | ||
5050 | for (j = 0; | |
5051 | !found && j < sizeof (f_options) / sizeof (f_options[0]); | |
5052 | j++) | |
5053 | { | |
5054 | if (!strcmp (p, f_options[j].string)) | |
5055 | { | |
5056 | *f_options[j].variable = f_options[j].on_value; | |
5057 | /* A goto here would be cleaner, | |
5058 | but breaks the vax pcc. */ | |
5059 | found = 1; | |
5060 | } | |
5061 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
5062 | && ! strcmp (p+3, f_options[j].string)) | |
5063 | { | |
5064 | *f_options[j].variable = ! f_options[j].on_value; | |
5065 | found = 1; | |
5066 | } | |
5067 | } | |
5068 | ||
5069 | if (found) | |
5070 | ; | |
efa3896a GK |
5071 | else if (!strncmp (p, "inline-limit-", 13) |
5072 | || !strncmp (p, "inline-limit=", 13)) | |
f9e814f1 TP |
5073 | inline_max_insns = |
5074 | read_integral_parameter (p + 13, p - 2, inline_max_insns); | |
8c660648 | 5075 | #ifdef INSN_SCHEDULING |
efa3896a | 5076 | else if (!strncmp (p, "sched-verbose=",14)) |
8c660648 | 5077 | fix_sched_param("verbose",&p[14]); |
8c660648 | 5078 | #endif |
4291d9c8 RS |
5079 | else if (!strncmp (p, "fixed-", 6)) |
5080 | fix_register (&p[6], 1, 1); | |
5081 | else if (!strncmp (p, "call-used-", 10)) | |
5082 | fix_register (&p[10], 0, 1); | |
5083 | else if (!strncmp (p, "call-saved-", 11)) | |
5084 | fix_register (&p[11], 0, 0); | |
efa3896a GK |
5085 | else if (!strncmp (p, "align-loops=", 12)) |
5086 | align_loops = read_integral_parameter (p + 12, p - 2, | |
5087 | align_loops); | |
5088 | else if (!strncmp (p, "align-functions=", 16)) | |
5089 | align_functions = read_integral_parameter (p + 16, p - 2, | |
5090 | align_functions); | |
5091 | else if (!strncmp (p, "align-jumps=", 12)) | |
5092 | align_jumps = read_integral_parameter (p + 12, p - 2, | |
5093 | align_jumps); | |
5094 | else if (!strncmp (p, "align-labels=", 13)) | |
5095 | align_labels = read_integral_parameter (p + 13, p - 2, | |
5096 | align_labels); | |
b99933c7 | 5097 | else |
4291d9c8 RS |
5098 | error ("Invalid option `%s'", argv[i]); |
5099 | } | |
5100 | else if (str[0] == 'O') | |
5101 | { | |
192babfd | 5102 | /* Already been treated above. Do nothing. */ |
4291d9c8 RS |
5103 | } |
5104 | else if (!strcmp (str, "pedantic")) | |
5105 | pedantic = 1; | |
5106 | else if (!strcmp (str, "pedantic-errors")) | |
5107 | flag_pedantic_errors = pedantic = 1; | |
4291d9c8 RS |
5108 | else if (!strcmp (str, "quiet")) |
5109 | quiet_flag = 1; | |
5110 | else if (!strcmp (str, "version")) | |
5111 | version_flag = 1; | |
5112 | else if (!strcmp (str, "w")) | |
5113 | inhibit_warnings = 1; | |
5114 | else if (!strcmp (str, "W")) | |
5115 | { | |
5116 | extra_warnings = 1; | |
fa1a4543 RS |
5117 | /* We save the value of warn_uninitialized, since if they put |
5118 | -Wuninitialized on the command line, we need to generate a | |
5119 | warning about not using it without also specifying -O. */ | |
5120 | if (warn_uninitialized != 1) | |
5121 | warn_uninitialized = 2; | |
4291d9c8 RS |
5122 | } |
5123 | else if (str[0] == 'W') | |
5124 | { | |
4291d9c8 RS |
5125 | register char *p = &str[1]; |
5126 | int found = 0; | |
5127 | ||
5128 | /* Some kind of -W option. | |
5129 | P's value is the option sans `-W'. | |
5130 | Search for it in the table of options. */ | |
5131 | ||
5132 | for (j = 0; | |
5133 | !found && j < sizeof (W_options) / sizeof (W_options[0]); | |
5134 | j++) | |
5135 | { | |
5136 | if (!strcmp (p, W_options[j].string)) | |
5137 | { | |
5138 | *W_options[j].variable = W_options[j].on_value; | |
5139 | /* A goto here would be cleaner, | |
5140 | but breaks the vax pcc. */ | |
5141 | found = 1; | |
5142 | } | |
5143 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
5144 | && ! strcmp (p+3, W_options[j].string)) | |
5145 | { | |
5146 | *W_options[j].variable = ! W_options[j].on_value; | |
5147 | found = 1; | |
5148 | } | |
5149 | } | |
5150 | ||
5151 | if (found) | |
5152 | ; | |
5153 | else if (!strncmp (p, "id-clash-", 9)) | |
5154 | { | |
192babfd TP |
5155 | const int id_clash_val |
5156 | = read_integral_parameter (p + 9, p - 2, -1); | |
5157 | if (id_clash_val != -1) | |
4291d9c8 | 5158 | { |
192babfd TP |
5159 | id_clash_len = id_clash_val; |
5160 | warn_id_clash = 1; | |
4291d9c8 | 5161 | } |
4291d9c8 | 5162 | } |
b51e9c62 RK |
5163 | else if (!strncmp (p, "larger-than-", 12)) |
5164 | { | |
192babfd TP |
5165 | const int larger_than_val |
5166 | = read_integral_parameter (p + 12, p - 2, -1); | |
5167 | if (larger_than_val != -1) | |
b51e9c62 | 5168 | { |
192babfd TP |
5169 | larger_than_size = larger_than_val; |
5170 | warn_larger_than = 1; | |
b51e9c62 | 5171 | } |
b51e9c62 | 5172 | } |
4291d9c8 RS |
5173 | else |
5174 | error ("Invalid option `%s'", argv[i]); | |
5175 | } | |
5176 | else if (!strcmp (str, "p")) | |
ca695ac9 | 5177 | { |
c2d12c8b | 5178 | profile_flag = 1; |
ca695ac9 | 5179 | } |
4291d9c8 RS |
5180 | else if (!strcmp (str, "a")) |
5181 | { | |
5182 | #if !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER) | |
5183 | warning ("`-a' option (basic block profile) not supported"); | |
5184 | #else | |
ec6c615d RK |
5185 | profile_block_flag = (profile_block_flag < 2) ? 1 : 3; |
5186 | #endif | |
5187 | } | |
5188 | else if (!strcmp (str, "ax")) | |
5189 | { | |
5190 | #if !defined (FUNCTION_BLOCK_PROFILER_EXIT) || !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER) | |
5191 | warning ("`-ax' option (jump profiling) not supported"); | |
5192 | #else | |
5193 | profile_block_flag = (!profile_block_flag | |
5194 | || profile_block_flag == 2) ? 2 : 3; | |
4291d9c8 RS |
5195 | #endif |
5196 | } | |
5197 | else if (str[0] == 'g') | |
5198 | { | |
4291d9c8 | 5199 | unsigned level; |
ff482cef DE |
5200 | /* A lot of code assumes write_symbols == NO_DEBUG if the |
5201 | debugging level is 0 (thus -gstabs1 -gstabs0 would lose track | |
5202 | of what debugging type has been selected). This records the | |
5203 | selected type. It is an error to specify more than one | |
5204 | debugging type. */ | |
5205 | static enum debug_info_type selected_debug_type = NO_DEBUG; | |
5206 | /* Non-zero if debugging format has been explicitly set. | |
5207 | -g and -ggdb don't explicitly set the debugging format so | |
5208 | -gdwarf -g3 is equivalent to -gdwarf3. */ | |
5209 | static int type_explicitly_set_p = 0; | |
ff482cef | 5210 | /* Indexed by enum debug_info_type. */ |
87e11268 | 5211 | static const char *debug_type_names[] = |
b8468bc7 | 5212 | { |
9a666dda | 5213 | "none", "stabs", "coff", "dwarf-1", "dwarf-2", "xcoff" |
ff482cef | 5214 | }; |
4291d9c8 | 5215 | |
192babfd TP |
5216 | /* The maximum admissible debug level value. */ |
5217 | static const unsigned max_debug_level = 3; | |
5218 | ||
ff482cef DE |
5219 | /* Look up STR in the table. */ |
5220 | for (da = debug_args; da->arg; da++) | |
5221 | { | |
192babfd TP |
5222 | const int da_len = strlen (da->arg); |
5223 | ||
5224 | if (! strncmp (str, da->arg, da_len)) | |
ff482cef DE |
5225 | { |
5226 | enum debug_info_type type = da->debug_type; | |
192babfd | 5227 | const char *p = str + da_len; |
9a666dda | 5228 | |
9a666dda JM |
5229 | if (*p && (*p < '0' || *p > '9')) |
5230 | continue; | |
192babfd | 5231 | |
43c2d67a JL |
5232 | /* A debug flag without a level defaults to level 2. |
5233 | Note we do not want to call read_integral_parameter | |
5234 | for that case since it will call atoi which | |
5235 | will return zero. | |
5236 | ||
5237 | ??? We may want to generalize the interface to | |
5238 | read_integral_parameter to better handle this case | |
5239 | if this case shows up often. */ | |
5240 | if (*p) | |
5241 | level = read_integral_parameter (p, 0, | |
5242 | max_debug_level + 1); | |
5243 | else | |
5244 | level = 2; | |
5245 | ||
539bd34c | 5246 | if (da_len > 1 && *p && !strncmp (str, "gdwarf", da_len)) |
33e5c8c3 | 5247 | { |
192babfd TP |
5248 | error ("use -gdwarf -g%d for DWARF v1, level %d", |
5249 | level, level); | |
5250 | if (level == 2) | |
5251 | error ("use -gdwarf-2 for DWARF v2"); | |
33e5c8c3 | 5252 | } |
192babfd TP |
5253 | |
5254 | if (level > max_debug_level) | |
9a666dda | 5255 | { |
192babfd TP |
5256 | warning ("ignoring option `%s' due to invalid debug level specification", |
5257 | str - 1); | |
5258 | level = debug_info_level; | |
9a666dda JM |
5259 | } |
5260 | ||
ff482cef | 5261 | if (type == NO_DEBUG) |
fe0986b4 JM |
5262 | { |
5263 | type = PREFERRED_DEBUGGING_TYPE; | |
192babfd | 5264 | if (da_len > 1 && strncmp (str, "ggdb", da_len) == 0) |
fe0986b4 | 5265 | { |
deabc777 | 5266 | #if defined (DWARF2_DEBUGGING_INFO) && !defined (LINKER_DOES_NOT_WORK_WITH_DWARF2) |
fe0986b4 | 5267 | type = DWARF2_DEBUG; |
417b0fa2 JW |
5268 | #else |
5269 | #ifdef DBX_DEBUGGING_INFO | |
fe0986b4 | 5270 | type = DBX_DEBUG; |
417b0fa2 | 5271 | #endif |
fe0986b4 JM |
5272 | #endif |
5273 | } | |
5274 | } | |
ff482cef | 5275 | |
e38eaffd RK |
5276 | if (type == NO_DEBUG) |
5277 | warning ("`-%s' not supported by this configuration of GCC", | |
5278 | str); | |
5279 | ||
ff482cef DE |
5280 | /* Does it conflict with an already selected type? */ |
5281 | if (type_explicitly_set_p | |
5282 | /* -g/-ggdb don't conflict with anything */ | |
5283 | && da->debug_type != NO_DEBUG | |
5284 | && type != selected_debug_type) | |
5285 | warning ("`-%s' ignored, conflicts with `-g%s'", | |
5286 | str, debug_type_names[(int) selected_debug_type]); | |
5287 | else | |
5288 | { | |
5289 | /* If the format has already been set, -g/-ggdb | |
5290 | only change the debug level. */ | |
5291 | if (type_explicitly_set_p | |
5292 | && da->debug_type == NO_DEBUG) | |
5293 | ; /* don't change debugging type */ | |
5294 | else | |
5295 | { | |
5296 | selected_debug_type = type; | |
5297 | type_explicitly_set_p = da->debug_type != NO_DEBUG; | |
5298 | } | |
5299 | write_symbols = (level == 0 | |
5300 | ? NO_DEBUG | |
5301 | : selected_debug_type); | |
5302 | use_gnu_debug_info_extensions = da->use_extensions_p; | |
5303 | debug_info_level = (enum debug_info_level) level; | |
5304 | } | |
5305 | break; | |
5306 | } | |
5307 | } | |
5308 | if (! da->arg) | |
7276e85d RK |
5309 | warning ("`-%s' not supported by this configuration of GCC", |
5310 | str); | |
4291d9c8 RS |
5311 | } |
5312 | else if (!strcmp (str, "o")) | |
5313 | { | |
5314 | asm_file_name = argv[++i]; | |
5315 | } | |
5316 | else if (str[0] == 'G') | |
5317 | { | |
192babfd TP |
5318 | const int g_switch_val = (str[1] != '\0') ? |
5319 | read_integral_parameter(str + 1, 0, -1) : | |
5320 | read_integral_parameter(argv[++i], 0, -1); | |
5321 | ||
5322 | if (g_switch_val != -1) | |
5323 | { | |
5324 | g_switch_set = TRUE; | |
5325 | g_switch_value = g_switch_val; | |
5326 | } | |
5327 | else | |
5328 | { | |
5329 | error("Invalid option `-%s'",str); | |
5330 | } | |
4291d9c8 | 5331 | } |
f246a305 RS |
5332 | else if (!strncmp (str, "aux-info", 8)) |
5333 | { | |
5334 | flag_gen_aux_info = 1; | |
5335 | aux_info_file_name = (str[8] != '\0' ? str+8 : argv[++i]); | |
5336 | } | |
b8468bc7 NC |
5337 | else if (!strcmp (str, "-help")) |
5338 | { | |
5339 | display_help (); | |
5340 | exit (0); | |
5341 | } | |
4291d9c8 RS |
5342 | else |
5343 | error ("Invalid option `%s'", argv[i]); | |
5344 | } | |
5345 | else if (argv[i][0] == '+') | |
b99933c7 | 5346 | error ("Invalid option `%s'", argv[i]); |
4291d9c8 RS |
5347 | else |
5348 | filename = argv[i]; | |
5349 | } | |
5350 | ||
f602c208 RK |
5351 | /* Checker uses the frame pointer. */ |
5352 | if (flag_check_memory_usage) | |
5353 | flag_omit_frame_pointer = 0; | |
5354 | ||
f246a305 RS |
5355 | if (optimize == 0) |
5356 | { | |
a2468e45 BK |
5357 | /* Inlining does not work if not optimizing, |
5358 | so force it not to be done. */ | |
f246a305 RS |
5359 | flag_no_inline = 1; |
5360 | warn_inline = 0; | |
a2468e45 BK |
5361 | |
5362 | /* The c_decode_option and lang_decode_option functions set | |
5363 | this to `2' if -Wall is used, so we can avoid giving out | |
5364 | lots of errors for people who don't realize what -Wall does. */ | |
5365 | if (warn_uninitialized == 1) | |
5366 | warning ("-Wuninitialized is not supported without -O"); | |
f246a305 RS |
5367 | } |
5368 | ||
4291d9c8 RS |
5369 | #ifdef OVERRIDE_OPTIONS |
5370 | /* Some machines may reject certain combinations of options. */ | |
5371 | OVERRIDE_OPTIONS; | |
5372 | #endif | |
5373 | ||
d1485032 JM |
5374 | if (exceptions_via_longjmp == 2) |
5375 | { | |
5376 | #ifdef DWARF2_UNWIND_INFO | |
5377 | exceptions_via_longjmp = ! DWARF2_UNWIND_INFO; | |
5378 | #else | |
5379 | exceptions_via_longjmp = 1; | |
5380 | #endif | |
5381 | } | |
5382 | ||
efa3896a GK |
5383 | /* Set up the align_*_log variables, defaulting them to 1 if they |
5384 | were still unset. */ | |
5385 | if (align_loops <= 0) align_loops = 1; | |
5386 | align_loops_log = floor_log2 (align_loops*2-1); | |
5387 | if (align_jumps <= 0) align_jumps = 1; | |
5388 | align_jumps_log = floor_log2 (align_jumps*2-1); | |
5389 | if (align_labels <= 0) align_labels = 1; | |
5390 | align_labels_log = floor_log2 (align_labels*2-1); | |
5391 | if (align_functions <= 0) align_functions = 1; | |
5392 | align_functions_log = floor_log2 (align_functions*2-1); | |
5393 | ||
ec6c615d RK |
5394 | if (profile_block_flag == 3) |
5395 | { | |
5396 | warning ("`-ax' and `-a' are conflicting options. `-a' ignored."); | |
5397 | profile_block_flag = 2; | |
5398 | } | |
5399 | ||
4291d9c8 RS |
5400 | /* Unrolling all loops implies that standard loop unrolling must also |
5401 | be done. */ | |
5402 | if (flag_unroll_all_loops) | |
5403 | flag_unroll_loops = 1; | |
5404 | /* Loop unrolling requires that strength_reduction be on also. Silently | |
5405 | turn on strength reduction here if it isn't already on. Also, the loop | |
5406 | unrolling code assumes that cse will be run after loop, so that must | |
5407 | be turned on also. */ | |
5408 | if (flag_unroll_loops) | |
5409 | { | |
5410 | flag_strength_reduce = 1; | |
5411 | flag_rerun_cse_after_loop = 1; | |
5412 | } | |
5413 | ||
5414 | /* Warn about options that are not supported on this machine. */ | |
5415 | #ifndef INSN_SCHEDULING | |
5416 | if (flag_schedule_insns || flag_schedule_insns_after_reload) | |
5417 | warning ("instruction scheduling not supported on this target machine"); | |
5418 | #endif | |
5419 | #ifndef DELAY_SLOTS | |
5420 | if (flag_delayed_branch) | |
5421 | warning ("this target machine does not have delayed branches"); | |
5422 | #endif | |
5423 | ||
19283265 RH |
5424 | user_label_prefix = USER_LABEL_PREFIX; |
5425 | if (flag_leading_underscore != -1) | |
5426 | { | |
5427 | /* If the default prefix is more complicated than "" or "_", | |
5428 | issue a warning and ignore this option. */ | |
5429 | if (user_label_prefix[0] == 0 || | |
5430 | (user_label_prefix[0] == '_' && user_label_prefix[1] == 0)) | |
5431 | { | |
5432 | user_label_prefix = flag_leading_underscore ? "_" : ""; | |
5433 | } | |
5434 | else | |
5435 | warning ("-f%sleading-underscore not supported on this target machine", | |
5436 | flag_leading_underscore ? "" : "no-"); | |
5437 | } | |
5438 | ||
4291d9c8 RS |
5439 | /* If we are in verbose mode, write out the version and maybe all the |
5440 | option flags in use. */ | |
5441 | if (version_flag) | |
5442 | { | |
3d5cdd42 | 5443 | print_version (stderr, ""); |
4291d9c8 | 5444 | if (! quiet_flag) |
3d5cdd42 | 5445 | print_switch_values (stderr, 0, MAX_LINE, "", " ", "\n"); |
4291d9c8 RS |
5446 | } |
5447 | ||
4291d9c8 RS |
5448 | compile_file (filename); |
5449 | ||
58f4af8e | 5450 | #if !defined(OS2) && !defined(VMS) && (!defined(_WIN32) || defined (__CYGWIN__)) && !defined(__INTERIX) |
4291d9c8 RS |
5451 | if (flag_print_mem) |
5452 | { | |
5453 | char *lim = (char *) sbrk (0); | |
5454 | ||
ab87f8c8 | 5455 | notice ("Data size %ld.\n", (long) (lim - (char *) &environ)); |
4291d9c8 RS |
5456 | fflush (stderr); |
5457 | ||
e9a25f70 | 5458 | #ifndef __MSDOS__ |
4291d9c8 RS |
5459 | #ifdef USG |
5460 | system ("ps -l 1>&2"); | |
5461 | #else /* not USG */ | |
5462 | system ("ps v"); | |
5463 | #endif /* not USG */ | |
e9a25f70 | 5464 | #endif |
4291d9c8 | 5465 | } |
58f4af8e | 5466 | #endif /* ! OS2 && ! VMS && (! _WIN32 || CYGWIN) && ! __INTERIX */ |
4291d9c8 RS |
5467 | |
5468 | if (errorcount) | |
5469 | exit (FATAL_EXIT_CODE); | |
5470 | if (sorrycount) | |
5471 | exit (FATAL_EXIT_CODE); | |
5472 | exit (SUCCESS_EXIT_CODE); | |
299846f2 | 5473 | return 0; |
4291d9c8 RS |
5474 | } |
5475 | \f | |
5476 | /* Decode -m switches. */ | |
4291d9c8 RS |
5477 | /* Decode the switch -mNAME. */ |
5478 | ||
114791ea | 5479 | static void |
4291d9c8 | 5480 | set_target_switch (name) |
87e11268 | 5481 | const char *name; |
4291d9c8 | 5482 | { |
85066503 | 5483 | register size_t j; |
ab87f8c8 | 5484 | int valid_target_option = 0; |
4291d9c8 RS |
5485 | |
5486 | for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++) | |
5487 | if (!strcmp (target_switches[j].name, name)) | |
5488 | { | |
5489 | if (target_switches[j].value < 0) | |
5490 | target_flags &= ~-target_switches[j].value; | |
5491 | else | |
5492 | target_flags |= target_switches[j].value; | |
ab87f8c8 | 5493 | valid_target_option = 1; |
4291d9c8 RS |
5494 | } |
5495 | ||
5496 | #ifdef TARGET_OPTIONS | |
ab87f8c8 | 5497 | if (!valid_target_option) |
4291d9c8 RS |
5498 | for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++) |
5499 | { | |
5500 | int len = strlen (target_options[j].prefix); | |
5501 | if (!strncmp (target_options[j].prefix, name, len)) | |
5502 | { | |
5503 | *target_options[j].variable = name + len; | |
ab87f8c8 | 5504 | valid_target_option = 1; |
4291d9c8 RS |
5505 | } |
5506 | } | |
5507 | #endif | |
5508 | ||
ab87f8c8 | 5509 | if (!valid_target_option) |
4291d9c8 RS |
5510 | error ("Invalid option `%s'", name); |
5511 | } | |
5512 | \f | |
3d5cdd42 DE |
5513 | /* Print version information to FILE. |
5514 | Each line begins with INDENT (for the case where FILE is the | |
5515 | assembler output file). */ | |
4291d9c8 | 5516 | |
114791ea | 5517 | static void |
3d5cdd42 DE |
5518 | print_version (file, indent) |
5519 | FILE *file; | |
87e11268 | 5520 | const char *indent; |
4291d9c8 | 5521 | { |
3d5cdd42 | 5522 | #ifndef __VERSION__ |
ab87f8c8 | 5523 | #define __VERSION__ "[?]" |
3d5cdd42 | 5524 | #endif |
ab87f8c8 JL |
5525 | fnotice (file, |
5526 | #ifdef __GNUC__ | |
5527 | "%s%s%s version %s (%s) compiled by GNU C version %s.\n" | |
3d5cdd42 | 5528 | #else |
ab87f8c8 | 5529 | "%s%s%s version %s (%s) compiled by CC.\n" |
3d5cdd42 | 5530 | #endif |
ab87f8c8 JL |
5531 | , indent, *indent != 0 ? " " : "", |
5532 | language_string, version_string, TARGET_NAME, __VERSION__); | |
3d5cdd42 | 5533 | } |
4291d9c8 | 5534 | |
3d5cdd42 | 5535 | /* Print an option value and return the adjusted position in the line. |
309a8875 DE |
5536 | ??? We don't handle error returns from fprintf (disk full); presumably |
5537 | other code will catch a disk full though. */ | |
4291d9c8 | 5538 | |
114791ea | 5539 | static int |
3d5cdd42 DE |
5540 | print_single_switch (file, pos, max, indent, sep, term, type, name) |
5541 | FILE *file; | |
5542 | int pos, max; | |
87e11268 | 5543 | const char *indent, *sep, *term, *type, *name; |
3d5cdd42 | 5544 | { |
309a8875 DE |
5545 | /* The ultrix fprintf returns 0 on success, so compute the result we want |
5546 | here since we need it for the following test. */ | |
5547 | int len = strlen (sep) + strlen (type) + strlen (name); | |
5548 | ||
3d5cdd42 | 5549 | if (pos != 0 |
309a8875 | 5550 | && pos + len > max) |
4291d9c8 | 5551 | { |
3d5cdd42 DE |
5552 | fprintf (file, "%s", term); |
5553 | pos = 0; | |
4291d9c8 | 5554 | } |
3d5cdd42 DE |
5555 | if (pos == 0) |
5556 | { | |
309a8875 DE |
5557 | fprintf (file, "%s", indent); |
5558 | pos = strlen (indent); | |
3d5cdd42 | 5559 | } |
309a8875 DE |
5560 | fprintf (file, "%s%s%s", sep, type, name); |
5561 | pos += len; | |
3d5cdd42 | 5562 | return pos; |
4291d9c8 RS |
5563 | } |
5564 | ||
3d5cdd42 DE |
5565 | /* Print active target switches to FILE. |
5566 | POS is the current cursor position and MAX is the size of a "line". | |
5567 | Each line begins with INDENT and ends with TERM. | |
5568 | Each switch is separated from the next by SEP. */ | |
4291d9c8 | 5569 | |
25074193 | 5570 | static void |
3d5cdd42 DE |
5571 | print_switch_values (file, pos, max, indent, sep, term) |
5572 | FILE *file; | |
5573 | int pos, max; | |
87e11268 | 5574 | const char *indent, *sep, *term; |
4291d9c8 | 5575 | { |
85066503 | 5576 | size_t j; |
3d5cdd42 DE |
5577 | char **p; |
5578 | ||
5579 | /* Print the options as passed. */ | |
4291d9c8 | 5580 | |
3d5cdd42 | 5581 | pos = print_single_switch (file, pos, max, indent, *indent ? " " : "", term, |
ab87f8c8 | 5582 | _("options passed: "), ""); |
3d5cdd42 | 5583 | |
520e7ff5 | 5584 | for (p = &save_argv[1]; *p != NULL; p++) |
3d5cdd42 DE |
5585 | if (**p == '-') |
5586 | { | |
5587 | /* Ignore these. */ | |
520e7ff5 DE |
5588 | if (strcmp (*p, "-o") == 0) |
5589 | { | |
5590 | if (p[1] != NULL) | |
5591 | p++; | |
5592 | continue; | |
5593 | } | |
3d5cdd42 DE |
5594 | if (strcmp (*p, "-quiet") == 0) |
5595 | continue; | |
5596 | if (strcmp (*p, "-version") == 0) | |
5597 | continue; | |
5598 | if ((*p)[1] == 'd') | |
5599 | continue; | |
5600 | ||
5601 | pos = print_single_switch (file, pos, max, indent, sep, term, *p, ""); | |
5602 | } | |
5603 | if (pos > 0) | |
5604 | fprintf (file, "%s", term); | |
5605 | ||
5606 | /* Print the -f and -m options that have been enabled. | |
5607 | We don't handle language specific options but printing argv | |
5608 | should suffice. */ | |
5609 | ||
5610 | pos = print_single_switch (file, 0, max, indent, *indent ? " " : "", term, | |
ab87f8c8 | 5611 | _("options enabled: "), ""); |
4291d9c8 RS |
5612 | |
5613 | for (j = 0; j < sizeof f_options / sizeof f_options[0]; j++) | |
5614 | if (*f_options[j].variable == f_options[j].on_value) | |
3d5cdd42 DE |
5615 | pos = print_single_switch (file, pos, max, indent, sep, term, |
5616 | "-f", f_options[j].string); | |
4291d9c8 | 5617 | |
3d5cdd42 | 5618 | /* Print target specific options. */ |
4291d9c8 RS |
5619 | |
5620 | for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++) | |
5621 | if (target_switches[j].name[0] != '\0' | |
5622 | && target_switches[j].value > 0 | |
5623 | && ((target_switches[j].value & target_flags) | |
5624 | == target_switches[j].value)) | |
3d5cdd42 DE |
5625 | { |
5626 | pos = print_single_switch (file, pos, max, indent, sep, term, | |
5627 | "-m", target_switches[j].name); | |
3d5cdd42 DE |
5628 | } |
5629 | ||
5630 | #ifdef TARGET_OPTIONS | |
5631 | for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++) | |
5632 | if (*target_options[j].variable != NULL) | |
5633 | { | |
5634 | char prefix[256]; | |
5635 | sprintf (prefix, "-m%s", target_options[j].prefix); | |
5636 | pos = print_single_switch (file, pos, max, indent, sep, term, | |
5637 | prefix, *target_options[j].variable); | |
5638 | } | |
5639 | #endif | |
4291d9c8 | 5640 | |
3d5cdd42 | 5641 | fprintf (file, "%s", term); |
4291d9c8 | 5642 | } |
9a666dda JM |
5643 | |
5644 | /* Record the beginning of a new source file, named FILENAME. */ | |
5645 | ||
5646 | void | |
5647 | debug_start_source_file (filename) | |
54ea1de9 | 5648 | register char *filename ATTRIBUTE_UNUSED; |
9a666dda JM |
5649 | { |
5650 | #ifdef DBX_DEBUGGING_INFO | |
5651 | if (write_symbols == DBX_DEBUG) | |
5652 | dbxout_start_new_source_file (filename); | |
5653 | #endif | |
5654 | #ifdef DWARF_DEBUGGING_INFO | |
5655 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5656 | && write_symbols == DWARF_DEBUG) | |
5657 | dwarfout_start_new_source_file (filename); | |
5658 | #endif /* DWARF_DEBUGGING_INFO */ | |
5659 | #ifdef DWARF2_DEBUGGING_INFO | |
5660 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5661 | && write_symbols == DWARF2_DEBUG) | |
5662 | dwarf2out_start_source_file (filename); | |
5663 | #endif /* DWARF2_DEBUGGING_INFO */ | |
cc694a81 DE |
5664 | #ifdef SDB_DEBUGGING_INFO |
5665 | if (write_symbols == SDB_DEBUG) | |
5666 | sdbout_start_new_source_file (filename); | |
5667 | #endif | |
9a666dda JM |
5668 | } |
5669 | ||
5670 | /* Record the resumption of a source file. LINENO is the line number in | |
5671 | the source file we are returning to. */ | |
5672 | ||
5673 | void | |
5674 | debug_end_source_file (lineno) | |
c84e2712 | 5675 | register unsigned lineno ATTRIBUTE_UNUSED; |
9a666dda JM |
5676 | { |
5677 | #ifdef DBX_DEBUGGING_INFO | |
5678 | if (write_symbols == DBX_DEBUG) | |
5679 | dbxout_resume_previous_source_file (); | |
5680 | #endif | |
5681 | #ifdef DWARF_DEBUGGING_INFO | |
5682 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5683 | && write_symbols == DWARF_DEBUG) | |
5684 | dwarfout_resume_previous_source_file (lineno); | |
5685 | #endif /* DWARF_DEBUGGING_INFO */ | |
5686 | #ifdef DWARF2_DEBUGGING_INFO | |
5687 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5688 | && write_symbols == DWARF2_DEBUG) | |
5689 | dwarf2out_end_source_file (); | |
5690 | #endif /* DWARF2_DEBUGGING_INFO */ | |
cc694a81 DE |
5691 | #ifdef SDB_DEBUGGING_INFO |
5692 | if (write_symbols == SDB_DEBUG) | |
5693 | sdbout_resume_previous_source_file (); | |
5694 | #endif | |
9a666dda JM |
5695 | } |
5696 | ||
5697 | /* Called from check_newline in c-parse.y. The `buffer' parameter contains | |
5698 | the tail part of the directive line, i.e. the part which is past the | |
5699 | initial whitespace, #, whitespace, directive-name, whitespace part. */ | |
5700 | ||
5701 | void | |
5702 | debug_define (lineno, buffer) | |
91813b28 KG |
5703 | register unsigned lineno ATTRIBUTE_UNUSED; |
5704 | register char *buffer ATTRIBUTE_UNUSED; | |
9a666dda JM |
5705 | { |
5706 | #ifdef DWARF_DEBUGGING_INFO | |
5707 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5708 | && write_symbols == DWARF_DEBUG) | |
5709 | dwarfout_define (lineno, buffer); | |
5710 | #endif /* DWARF_DEBUGGING_INFO */ | |
5711 | #ifdef DWARF2_DEBUGGING_INFO | |
5712 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5713 | && write_symbols == DWARF2_DEBUG) | |
5714 | dwarf2out_define (lineno, buffer); | |
5715 | #endif /* DWARF2_DEBUGGING_INFO */ | |
5716 | } | |
5717 | ||
5718 | /* Called from check_newline in c-parse.y. The `buffer' parameter contains | |
5719 | the tail part of the directive line, i.e. the part which is past the | |
5720 | initial whitespace, #, whitespace, directive-name, whitespace part. */ | |
5721 | ||
5722 | void | |
5723 | debug_undef (lineno, buffer) | |
91813b28 KG |
5724 | register unsigned lineno ATTRIBUTE_UNUSED; |
5725 | register char *buffer ATTRIBUTE_UNUSED; | |
9a666dda JM |
5726 | { |
5727 | #ifdef DWARF_DEBUGGING_INFO | |
5728 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5729 | && write_symbols == DWARF_DEBUG) | |
5730 | dwarfout_undef (lineno, buffer); | |
5731 | #endif /* DWARF_DEBUGGING_INFO */ | |
5732 | #ifdef DWARF2_DEBUGGING_INFO | |
5733 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
5734 | && write_symbols == DWARF2_DEBUG) | |
5735 | dwarf2out_undef (lineno, buffer); | |
5736 | #endif /* DWARF2_DEBUGGING_INFO */ | |
5737 | } |