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4291d9c8 | 1 | /* Top level of GNU C compiler |
c6aded7c | 2 | Copyright (C) 1987, 88, 89, 92-7, 1998 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" | |
e0e2a8da | 27 | #ifdef __STDC__ |
04fe4385 | 28 | #include <stdarg.h> |
e0e2a8da | 29 | #else |
04fe4385 | 30 | #include <varargs.h> |
e0e2a8da | 31 | #endif |
4291d9c8 RS |
32 | #include <stdio.h> |
33 | #include <signal.h> | |
34 | #include <setjmp.h> | |
eb711c86 | 35 | #include <sys/types.h> |
ea9182cd | 36 | #include <ctype.h> |
4291d9c8 | 37 | #include <sys/stat.h> |
4291d9c8 | 38 | #undef FLOAT |
956d6950 | 39 | #ifdef HAVE_SYS_PARAM_H |
4291d9c8 | 40 | #include <sys/param.h> |
956d6950 | 41 | #endif |
c5d0345e RH |
42 | #ifdef HAVE_UNISTD_H |
43 | #include <unistd.h> | |
44 | #endif | |
956d6950 JL |
45 | |
46 | #undef FLOAT /* This is for hpux. They should change hpux. */ | |
4291d9c8 | 47 | #undef FFS /* Some systems define this in param.h. */ |
956d6950 JL |
48 | |
49 | #ifdef TIME_WITH_SYS_TIME | |
50 | # include <sys/time.h> | |
51 | # include <time.h> | |
4291d9c8 | 52 | #else |
956d6950 JL |
53 | # if HAVE_SYS_TIME_H |
54 | # include <sys/time.h> | |
55 | # else | |
56 | # include <time.h> | |
4291d9c8 RS |
57 | #endif |
58 | #endif | |
956d6950 JL |
59 | |
60 | #ifdef HAVE_SYS_RESOURCE_H | |
61 | # include <sys/resource.h> | |
62 | #endif | |
63 | ||
64 | #ifdef HAVE_SYS_TIMES_H | |
65 | # include <sys/times.h> | |
eb910b5a | 66 | #endif |
4291d9c8 RS |
67 | |
68 | #include "input.h" | |
69 | #include "tree.h" | |
4291d9c8 RS |
70 | #include "rtl.h" |
71 | #include "flags.h" | |
72 | #include "insn-attr.h" | |
d0d4af87 | 73 | #include "defaults.h" |
e14417fa | 74 | #include "output.h" |
3d195391 | 75 | #include "except.h" |
f246a305 RS |
76 | |
77 | #ifdef XCOFF_DEBUGGING_INFO | |
78 | #include "xcoffout.h" | |
79 | #endif | |
4291d9c8 RS |
80 | \f |
81 | #ifdef VMS | |
82 | /* The extra parameters substantially improve the I/O performance. */ | |
83 | static FILE * | |
37c9f674 | 84 | vms_fopen (fname, type) |
4291d9c8 RS |
85 | char * fname; |
86 | char * type; | |
87 | { | |
37c9f674 RK |
88 | /* The <stdio.h> in the gcc-vms-1.42 distribution prototypes fopen with two |
89 | fixed arguments, which matches ANSI's specification but not VAXCRTL's | |
90 | pre-ANSI implementation. This hack circumvents the mismatch problem. */ | |
91 | FILE *(*vmslib_fopen)() = (FILE *(*)()) fopen; | |
92 | ||
93 | if (*type == 'w') | |
94 | return (*vmslib_fopen) (fname, type, "mbc=32", | |
95 | "deq=64", "fop=tef", "shr=nil"); | |
96 | else | |
97 | return (*vmslib_fopen) (fname, type, "mbc=32"); | |
4291d9c8 | 98 | } |
37c9f674 RK |
99 | #define fopen vms_fopen |
100 | #endif /* VMS */ | |
4291d9c8 RS |
101 | |
102 | #ifndef DEFAULT_GDB_EXTENSIONS | |
103 | #define DEFAULT_GDB_EXTENSIONS 1 | |
104 | #endif | |
105 | ||
30657ee3 RK |
106 | /* If more than one debugging type is supported, you must define |
107 | PREFERRED_DEBUGGING_TYPE to choose a format in a system-dependent way. | |
108 | ||
109 | This is one long line cause VAXC can't handle a \-newline. */ | |
9a666dda | 110 | #if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) + defined (DWARF_DEBUGGING_INFO) + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO)) |
30657ee3 RK |
111 | #ifndef PREFERRED_DEBUGGING_TYPE |
112 | You Lose! You must define PREFERRED_DEBUGGING_TYPE! | |
113 | #endif /* no PREFERRED_DEBUGGING_TYPE */ | |
114 | #else /* Only one debugging format supported. Define PREFERRED_DEBUGGING_TYPE | |
115 | so the following code needn't care. */ | |
116 | #ifdef DBX_DEBUGGING_INFO | |
117 | #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
118 | #endif | |
119 | #ifdef SDB_DEBUGGING_INFO | |
120 | #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG | |
121 | #endif | |
122 | #ifdef DWARF_DEBUGGING_INFO | |
123 | #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG | |
124 | #endif | |
9a666dda JM |
125 | #ifdef DWARF2_DEBUGGING_INFO |
126 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
127 | #endif | |
30657ee3 RK |
128 | #ifdef XCOFF_DEBUGGING_INFO |
129 | #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG | |
130 | #endif | |
131 | #endif /* More than one debugger format enabled. */ | |
132 | ||
133 | /* If still not defined, must have been because no debugging formats | |
134 | are supported. */ | |
135 | #ifndef PREFERRED_DEBUGGING_TYPE | |
136 | #define PREFERRED_DEBUGGING_TYPE NO_DEBUG | |
137 | #endif | |
138 | ||
4291d9c8 RS |
139 | extern int rtx_equal_function_value_matters; |
140 | ||
72c8bb7f | 141 | #if ! (defined (VMS) || defined (OS2)) |
4291d9c8 | 142 | extern char **environ; |
4d7e336b | 143 | #endif |
4291d9c8 RS |
144 | extern char *version_string, *language_string; |
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_lex (); |
153 | extern void init_decl_processing (); | |
154 | extern void init_obstacks (); | |
155 | extern void init_tree_codes (); | |
156 | extern void init_rtl (); | |
34d0205f | 157 | extern void init_regs (); |
4291d9c8 RS |
158 | extern void init_optabs (); |
159 | extern void init_stmt (); | |
160 | extern void init_reg_sets (); | |
161 | extern void dump_flow_info (); | |
162 | extern void dump_sched_info (); | |
163 | extern void dump_local_alloc (); | |
9ddca353 | 164 | extern void regset_release_memory (); |
4291d9c8 | 165 | |
032713aa NC |
166 | extern void print_rtl (); |
167 | extern void print_rtl_with_bb (); | |
168 | ||
4291d9c8 | 169 | void rest_of_decl_compilation (); |
d18225c4 RK |
170 | void error_with_file_and_line PVPROTO((char *file, int line, char *s, ...)); |
171 | void error_with_decl PVPROTO((tree decl, char *s, ...)); | |
172 | void error_for_asm PVPROTO((rtx insn, char *s, ...)); | |
173 | void error PVPROTO((char *s, ...)); | |
174 | void fatal PVPROTO((char *s, ...)); | |
175 | void warning_with_file_and_line PVPROTO((char *file, int line, char *s, ...)); | |
176 | void warning_with_decl PVPROTO((tree decl, char *s, ...)); | |
177 | void warning_for_asm PVPROTO((rtx insn, char *s, ...)); | |
178 | void warning PVPROTO((char *s, ...)); | |
179 | void pedwarn PVPROTO((char *s, ...)); | |
180 | void pedwarn_with_decl PVPROTO((tree decl, char *s, ...)); | |
181 | void pedwarn_with_file_and_line PVPROTO((char *file, int line, char *s, ...)); | |
182 | void sorry PVPROTO((char *s, ...)); | |
183 | void really_sorry PVPROTO((char *s, ...)); | |
4291d9c8 RS |
184 | void fancy_abort (); |
185 | #ifndef abort | |
186 | void abort (); | |
187 | #endif | |
188 | void set_target_switch (); | |
4291d9c8 RS |
189 | static char *decl_name (); |
190 | ||
3d5cdd42 DE |
191 | void print_version (); |
192 | int print_single_switch (); | |
193 | void print_switch_values (); | |
194 | /* Length of line when printing switch values. */ | |
195 | #define MAX_LINE 75 | |
196 | ||
c5d0345e | 197 | #ifdef NEED_DECLARATION_SBRK |
efa00f4e RK |
198 | extern char *sbrk (); |
199 | #endif | |
200 | ||
4291d9c8 RS |
201 | /* Name of program invoked, sans directories. */ |
202 | ||
203 | char *progname; | |
204 | ||
205 | /* Copy of arguments to main. */ | |
206 | int save_argc; | |
207 | char **save_argv; | |
208 | \f | |
209 | /* Name of current original source file (what was input to cpp). | |
210 | This comes from each #-command in the actual input. */ | |
211 | ||
212 | char *input_filename; | |
213 | ||
214 | /* Name of top-level original source file (what was input to cpp). | |
215 | This comes from the #-command at the beginning of the actual input. | |
216 | If there isn't any there, then this is the cc1 input file name. */ | |
217 | ||
218 | char *main_input_filename; | |
219 | ||
e3d1fd32 | 220 | #if !USE_CPPLIB |
4291d9c8 | 221 | /* Stream for reading from the input file. */ |
4291d9c8 | 222 | FILE *finput; |
e3d1fd32 | 223 | #endif |
4291d9c8 RS |
224 | |
225 | /* Current line number in real source file. */ | |
226 | ||
227 | int lineno; | |
228 | ||
229 | /* Stack of currently pending input files. */ | |
230 | ||
231 | struct file_stack *input_file_stack; | |
232 | ||
233 | /* Incremented on each change to input_file_stack. */ | |
234 | int input_file_stack_tick; | |
235 | ||
236 | /* FUNCTION_DECL for function now being parsed or compiled. */ | |
237 | ||
238 | extern tree current_function_decl; | |
239 | ||
240 | /* Name to use as base of names for dump output files. */ | |
241 | ||
242 | char *dump_base_name; | |
243 | ||
244 | /* Bit flags that specify the machine subtype we are compiling for. | |
245 | Bits are tested using macros TARGET_... defined in the tm.h file | |
246 | and set by `-m...' switches. Must be defined in rtlanal.c. */ | |
247 | ||
248 | extern int target_flags; | |
249 | ||
250 | /* Flags saying which kinds of debugging dump have been requested. */ | |
251 | ||
252 | int rtl_dump = 0; | |
253 | int rtl_dump_and_exit = 0; | |
254 | int jump_opt_dump = 0; | |
e9a25f70 | 255 | int addressof_dump = 0; |
4291d9c8 RS |
256 | int cse_dump = 0; |
257 | int loop_dump = 0; | |
258 | int cse2_dump = 0; | |
0d332add | 259 | int branch_prob_dump = 0; |
4291d9c8 RS |
260 | int flow_dump = 0; |
261 | int combine_dump = 0; | |
8c660648 | 262 | int regmove_dump = 0; |
4291d9c8 RS |
263 | int sched_dump = 0; |
264 | int local_reg_dump = 0; | |
265 | int global_reg_dump = 0; | |
266 | int sched2_dump = 0; | |
267 | int jump2_opt_dump = 0; | |
268 | int dbr_sched_dump = 0; | |
269 | int flag_print_asm_name = 0; | |
032713aa | 270 | #ifdef STACK_REGS |
4291d9c8 | 271 | int stack_reg_dump = 0; |
032713aa NC |
272 | #endif |
273 | #ifdef MACHINE_DEPENDENT_REORG | |
274 | int mach_dep_reorg_dump = 0; | |
275 | #endif | |
4291d9c8 RS |
276 | |
277 | /* Name for output file of assembly code, specified with -o. */ | |
278 | ||
279 | char *asm_file_name; | |
280 | ||
281 | /* Value of the -G xx switch, and whether it was passed or not. */ | |
282 | int g_switch_value; | |
283 | int g_switch_set; | |
284 | ||
285 | /* Type(s) of debugging information we are producing (if any). | |
286 | See flags.h for the definitions of the different possible | |
287 | types of debugging information. */ | |
288 | enum debug_info_type write_symbols = NO_DEBUG; | |
289 | ||
290 | /* Level of debugging information we are producing. See flags.h | |
291 | for the definitions of the different possible levels. */ | |
292 | enum debug_info_level debug_info_level = DINFO_LEVEL_NONE; | |
293 | ||
a53d0bcc RS |
294 | /* Nonzero means use GNU-only extensions in the generated symbolic |
295 | debugging information. */ | |
296 | /* Currently, this only has an effect when write_symbols is set to | |
297 | DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. */ | |
298 | int use_gnu_debug_info_extensions = 0; | |
4291d9c8 RS |
299 | |
300 | /* Nonzero means do optimizations. -O. | |
301 | Particular numeric values stand for particular amounts of optimization; | |
302 | thus, -O2 stores 2 here. However, the optimizations beyond the basic | |
303 | ones are not controlled directly by this variable. Instead, they are | |
304 | controlled by individual `flag_...' variables that are defaulted | |
305 | based on this variable. */ | |
306 | ||
307 | int optimize = 0; | |
308 | ||
c6aded7c AG |
309 | /* Nonzero means optimize for size. -Os. |
310 | The only valid values are zero and non-zero. When optimize_size is | |
311 | non-zero, optimize defaults to 2, but certain individual code | |
312 | bloating optimizations are disabled. */ | |
313 | ||
314 | int optimize_size = 0; | |
315 | ||
4291d9c8 RS |
316 | /* Number of error messages and warning messages so far. */ |
317 | ||
318 | int errorcount = 0; | |
319 | int warningcount = 0; | |
320 | int sorrycount = 0; | |
321 | ||
a1d7ffe3 JM |
322 | /* Pointer to function to compute the name to use to print a declaration. |
323 | DECL is the declaration in question. | |
324 | VERBOSITY determines what information will be printed: | |
325 | 0: DECL_NAME, demangled as necessary. | |
326 | 1: and scope information. | |
327 | 2: and any other information that might be interesting, such as function | |
328 | parameter types in C++. */ | |
4291d9c8 | 329 | |
a1d7ffe3 | 330 | char *(*decl_printable_name) (/* tree decl, int verbosity */); |
4291d9c8 RS |
331 | |
332 | /* Pointer to function to compute rtl for a language-specific tree code. */ | |
333 | ||
334 | struct rtx_def *(*lang_expand_expr) (); | |
335 | ||
2b599527 RS |
336 | /* Pointer to function to finish handling an incomplete decl at the |
337 | end of compilation. */ | |
338 | ||
339 | void (*incomplete_decl_finalize_hook) () = 0; | |
340 | ||
bf8b4985 RK |
341 | /* Highest label number used at the end of reload. */ |
342 | ||
343 | int max_label_num_after_reload; | |
344 | ||
4291d9c8 RS |
345 | /* Nonzero if generating code to do profiling. */ |
346 | ||
347 | int profile_flag = 0; | |
348 | ||
349 | /* Nonzero if generating code to do profiling on a line-by-line basis. */ | |
350 | ||
351 | int profile_block_flag; | |
352 | ||
0d332add DE |
353 | /* Nonzero if generating code to profile program flow graph arcs. */ |
354 | ||
355 | int profile_arc_flag = 0; | |
356 | ||
357 | /* Nonzero if generating info for gcov to calculate line test coverage. */ | |
358 | ||
359 | int flag_test_coverage = 0; | |
360 | ||
361 | /* Nonzero indicates that branch taken probabilities should be calculated. */ | |
362 | ||
363 | int flag_branch_probabilities = 0; | |
364 | ||
4291d9c8 RS |
365 | /* Nonzero for -pedantic switch: warn about anything |
366 | that standard spec forbids. */ | |
367 | ||
368 | int pedantic = 0; | |
369 | ||
370 | /* Temporarily suppress certain warnings. | |
371 | This is set while reading code from a system header file. */ | |
372 | ||
373 | int in_system_header = 0; | |
374 | ||
375 | /* Nonzero means do stupid register allocation. | |
376 | Currently, this is 1 if `optimize' is 0. */ | |
377 | ||
378 | int obey_regdecls = 0; | |
379 | ||
380 | /* Don't print functions as they are compiled and don't print | |
381 | times taken by the various passes. -quiet. */ | |
382 | ||
383 | int quiet_flag = 0; | |
384 | \f | |
385 | /* -f flags. */ | |
386 | ||
387 | /* Nonzero means `char' should be signed. */ | |
388 | ||
389 | int flag_signed_char; | |
390 | ||
391 | /* Nonzero means give an enum type only as many bytes as it needs. */ | |
392 | ||
393 | int flag_short_enums; | |
394 | ||
395 | /* Nonzero for -fcaller-saves: allocate values in regs that need to | |
396 | be saved across function calls, if that produces overall better code. | |
397 | Optional now, so people can test it. */ | |
398 | ||
399 | #ifdef DEFAULT_CALLER_SAVES | |
400 | int flag_caller_saves = 1; | |
401 | #else | |
402 | int flag_caller_saves = 0; | |
403 | #endif | |
404 | ||
958ec8ca JW |
405 | /* Nonzero if structures and unions should be returned in memory. |
406 | ||
407 | This should only be defined if compatibility with another compiler or | |
408 | with an ABI is needed, because it results in slower code. */ | |
409 | ||
410 | #ifndef DEFAULT_PCC_STRUCT_RETURN | |
411 | #define DEFAULT_PCC_STRUCT_RETURN 1 | |
412 | #endif | |
413 | ||
4291d9c8 RS |
414 | /* Nonzero for -fpcc-struct-return: return values the same way PCC does. */ |
415 | ||
958ec8ca | 416 | int flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN; |
4291d9c8 RS |
417 | |
418 | /* Nonzero for -fforce-mem: load memory value into a register | |
419 | before arithmetic on it. This makes better cse but slower compilation. */ | |
420 | ||
421 | int flag_force_mem = 0; | |
422 | ||
423 | /* Nonzero for -fforce-addr: load memory address into a register before | |
424 | reference to memory. This makes better cse but slower compilation. */ | |
425 | ||
426 | int flag_force_addr = 0; | |
427 | ||
428 | /* Nonzero for -fdefer-pop: don't pop args after each function call; | |
429 | instead save them up to pop many calls' args with one insns. */ | |
430 | ||
6731a3e3 | 431 | int flag_defer_pop = 0; |
4291d9c8 RS |
432 | |
433 | /* Nonzero for -ffloat-store: don't allocate floats and doubles | |
434 | in extended-precision registers. */ | |
435 | ||
436 | int flag_float_store = 0; | |
437 | ||
438 | /* Nonzero for -fcse-follow-jumps: | |
439 | have cse follow jumps to do a more extensive job. */ | |
440 | ||
441 | int flag_cse_follow_jumps; | |
442 | ||
8b3686ed RK |
443 | /* Nonzero for -fcse-skip-blocks: |
444 | have cse follow a branch around a block. */ | |
445 | int flag_cse_skip_blocks; | |
446 | ||
4291d9c8 RS |
447 | /* Nonzero for -fexpensive-optimizations: |
448 | perform miscellaneous relatively-expensive optimizations. */ | |
449 | int flag_expensive_optimizations; | |
450 | ||
451 | /* Nonzero for -fthread-jumps: | |
452 | have jump optimize output of loop. */ | |
453 | ||
454 | int flag_thread_jumps; | |
455 | ||
456 | /* Nonzero enables strength-reduction in loop.c. */ | |
457 | ||
458 | int flag_strength_reduce = 0; | |
459 | ||
460 | /* Nonzero enables loop unrolling in unroll.c. Only loops for which the | |
461 | number of iterations can be calculated at compile-time (UNROLL_COMPLETELY, | |
462 | UNROLL_MODULO) or at run-time (preconditioned to be UNROLL_MODULO) are | |
463 | unrolled. */ | |
464 | ||
465 | int flag_unroll_loops; | |
466 | ||
467 | /* Nonzero enables loop unrolling in unroll.c. All loops are unrolled. | |
468 | This is generally not a win. */ | |
469 | ||
470 | int flag_unroll_all_loops; | |
471 | ||
e5eb27e5 JL |
472 | /* Nonzero forces all invariant computations in loops to be moved |
473 | outside the loop. */ | |
474 | ||
475 | int flag_move_all_movables = 0; | |
476 | ||
477 | /* Nonzero forces all general induction variables in loops to be | |
478 | strength reduced. */ | |
479 | ||
480 | int flag_reduce_all_givs = 0; | |
481 | ||
4291d9c8 RS |
482 | /* Nonzero for -fwritable-strings: |
483 | store string constants in data segment and don't uniquize them. */ | |
484 | ||
485 | int flag_writable_strings = 0; | |
486 | ||
487 | /* Nonzero means don't put addresses of constant functions in registers. | |
488 | Used for compiling the Unix kernel, where strange substitutions are | |
489 | done on the assembly output. */ | |
490 | ||
491 | int flag_no_function_cse = 0; | |
492 | ||
493 | /* Nonzero for -fomit-frame-pointer: | |
494 | don't make a frame pointer in simple functions that don't require one. */ | |
495 | ||
496 | int flag_omit_frame_pointer = 0; | |
497 | ||
cf440348 JL |
498 | /* Nonzero means place each function into its own section on those platforms |
499 | which support arbitrary section names and unlimited numbers of sections. */ | |
500 | ||
501 | int flag_function_sections = 0; | |
502 | ||
4291d9c8 RS |
503 | /* Nonzero to inhibit use of define_optimization peephole opts. */ |
504 | ||
505 | int flag_no_peephole = 0; | |
506 | ||
43855b28 JL |
507 | /* Nonzero allows GCC to violate some IEEE or ANSI rules regarding math |
508 | operations in the interest of optimization. For example it allows | |
509 | GCC to assume arguments to sqrt are nonnegative numbers, allowing | |
0f41302f | 510 | faster code for sqrt to be generated. */ |
43855b28 JL |
511 | |
512 | int flag_fast_math = 0; | |
513 | ||
4291d9c8 RS |
514 | /* Nonzero means all references through pointers are volatile. */ |
515 | ||
516 | int flag_volatile; | |
c6e75897 RS |
517 | |
518 | /* Nonzero means treat all global and extern variables as global. */ | |
519 | ||
38d4d0c2 | 520 | int flag_volatile_global; |
4291d9c8 RS |
521 | |
522 | /* Nonzero means just do syntax checking; don't output anything. */ | |
523 | ||
524 | int flag_syntax_only = 0; | |
525 | ||
526 | /* Nonzero means to rerun cse after loop optimization. This increases | |
527 | compilation time about 20% and picks up a few more common expressions. */ | |
528 | ||
529 | static int flag_rerun_cse_after_loop; | |
530 | ||
6d6d0fa0 JL |
531 | /* Nonzero means to run loop optimizations twice. */ |
532 | ||
64fde701 | 533 | int flag_rerun_loop_opt; |
6d6d0fa0 | 534 | |
4291d9c8 RS |
535 | /* Nonzero for -finline-functions: ok to inline functions that look like |
536 | good inline candidates. */ | |
537 | ||
538 | int flag_inline_functions; | |
539 | ||
540 | /* Nonzero for -fkeep-inline-functions: even if we make a function | |
ac2a9454 | 541 | go inline everywhere, keep its definition around for debugging |
4291d9c8 RS |
542 | purposes. */ |
543 | ||
544 | int flag_keep_inline_functions; | |
545 | ||
fadb3bc9 | 546 | /* Nonzero means that functions will not be inlined. */ |
4291d9c8 RS |
547 | |
548 | int flag_no_inline; | |
549 | ||
fbe912dd BK |
550 | /* Nonzero means that we should emit static const variables |
551 | regardless of whether or not optimization is turned on. */ | |
552 | ||
553 | int flag_keep_static_consts = 1; | |
554 | ||
4291d9c8 RS |
555 | /* Nonzero means we should be saving declaration info into a .X file. */ |
556 | ||
557 | int flag_gen_aux_info = 0; | |
558 | ||
f246a305 RS |
559 | /* Specified name of aux-info file. */ |
560 | ||
561 | static char *aux_info_file_name; | |
562 | ||
4291d9c8 RS |
563 | /* Nonzero means make the text shared if supported. */ |
564 | ||
565 | int flag_shared_data; | |
566 | ||
567 | /* Nonzero means schedule into delayed branch slots if supported. */ | |
568 | ||
569 | int flag_delayed_branch; | |
570 | ||
571 | /* Nonzero if we are compiling pure (sharable) code. | |
572 | Value is 1 if we are doing reasonable (i.e. simple | |
573 | offset into offset table) pic. Value is 2 if we can | |
574 | only perform register offsets. */ | |
575 | ||
576 | int flag_pic; | |
577 | ||
3d195391 MS |
578 | /* Nonzero means generate extra code for exception handling and enable |
579 | exception handling. */ | |
580 | ||
56bf1fd9 | 581 | int flag_exceptions = 2; |
3d195391 | 582 | |
2786cbad | 583 | /* Nonzero means don't place uninitialized global data in common storage |
3d195391 | 584 | by default. */ |
4291d9c8 RS |
585 | |
586 | int flag_no_common; | |
587 | ||
588 | /* Nonzero means pretend it is OK to examine bits of target floats, | |
589 | even if that isn't true. The resulting code will have incorrect constants, | |
590 | but the same series of instructions that the native compiler would make. */ | |
591 | ||
592 | int flag_pretend_float; | |
593 | ||
594 | /* Nonzero means change certain warnings into errors. | |
595 | Usually these are warnings about failure to conform to some standard. */ | |
596 | ||
597 | int flag_pedantic_errors = 0; | |
598 | ||
599 | /* flag_schedule_insns means schedule insns within basic blocks (before | |
600 | local_alloc). | |
601 | flag_schedule_insns_after_reload means schedule insns after | |
602 | global_alloc. */ | |
603 | ||
604 | int flag_schedule_insns = 0; | |
605 | int flag_schedule_insns_after_reload = 0; | |
606 | ||
8c660648 JL |
607 | #ifdef HAIFA |
608 | /* The following flags have effect only for scheduling before register | |
609 | allocation: | |
610 | ||
611 | flag_schedule_interblock means schedule insns accross basic blocks. | |
612 | flag_schedule_speculative means allow speculative motion of non-load insns. | |
613 | flag_schedule_speculative_load means allow speculative motion of some | |
614 | load insns. | |
615 | flag_schedule_speculative_load_dangerous allows speculative motion of more | |
616 | load insns. | |
617 | flag_schedule_reverse_before_reload means try to reverse original order | |
618 | of insns (S). | |
619 | flag_schedule_reverse_after_reload means try to reverse original order | |
620 | of insns (R). */ | |
621 | ||
622 | int flag_schedule_interblock = 1; | |
623 | int flag_schedule_speculative = 1; | |
624 | int flag_schedule_speculative_load = 0; | |
625 | int flag_schedule_speculative_load_dangerous = 0; | |
626 | int flag_schedule_reverse_before_reload = 0; | |
627 | int flag_schedule_reverse_after_reload = 0; | |
628 | ||
629 | ||
630 | /* flag_on_branch_count_reg means try to replace add-1,compare,branch tupple | |
631 | by a cheaper branch, on a count register. */ | |
632 | int flag_branch_on_count_reg; | |
633 | #endif /* HAIFA */ | |
634 | ||
635 | ||
4291d9c8 RS |
636 | /* -finhibit-size-directive inhibits output of .size for ELF. |
637 | This is used only for compiling crtstuff.c, | |
638 | and it may be extended to other effects | |
639 | needed for crtstuff.c on other systems. */ | |
640 | int flag_inhibit_size_directive = 0; | |
641 | ||
9a631e8e RS |
642 | /* -fverbose-asm causes extra commentary information to be produced in |
643 | the generated assembly code (to make it more readable). This option | |
644 | is generally only of use to those who actually need to read the | |
3d5cdd42 | 645 | generated assembly code (perhaps while debugging the compiler itself). |
c85f7c16 | 646 | -fno-verbose-asm, the default, causes the extra information |
3d5cdd42 DE |
647 | to be omitted and is useful when comparing two assembler files. */ |
648 | ||
c85f7c16 | 649 | int flag_verbose_asm = 0; |
9a631e8e | 650 | |
3d5cdd42 DE |
651 | /* -dA causes debug commentary information to be produced in |
652 | the generated assembly code (to make it more readable). This option | |
653 | is generally only of use to those who actually need to read the | |
654 | generated assembly code (perhaps while debugging the compiler itself). | |
655 | Currently, this switch is only used by dwarfout.c; however, it is intended | |
656 | to be a catchall for printing debug information in the assembler file. */ | |
657 | ||
658 | int flag_debug_asm = 0; | |
9a631e8e | 659 | |
4291d9c8 | 660 | /* -fgnu-linker specifies use of the GNU linker for initializations. |
d68c507d RS |
661 | (Or, more generally, a linker that handles initializations.) |
662 | -fno-gnu-linker says that collect2 will be used. */ | |
663 | #ifdef USE_COLLECT2 | |
664 | int flag_gnu_linker = 0; | |
665 | #else | |
4291d9c8 | 666 | int flag_gnu_linker = 1; |
d68c507d | 667 | #endif |
4291d9c8 | 668 | |
566cdc73 MM |
669 | /* Tag all structures with __attribute__(packed) */ |
670 | int flag_pack_struct = 0; | |
671 | ||
bd83d0ac RK |
672 | /* Emit code to check for stack overflow; also may cause large objects |
673 | to be allocated dynamically. */ | |
674 | int flag_stack_check; | |
675 | ||
f602c208 RK |
676 | /* -fcheck-memory-usage causes extra code to be generated in order to check |
677 | memory accesses. This is used by a detector of bad memory accesses such | |
678 | as Checker. */ | |
679 | int flag_check_memory_usage = 0; | |
680 | ||
681 | /* -fprefix-function-name causes function name to be prefixed. This | |
682 | can be used with -fcheck-memory-usage to isolate code compiled with | |
683 | -fcheck-memory-usage. */ | |
684 | int flag_prefix_function_name = 0; | |
685 | ||
8c660648 JL |
686 | int flag_regmove = 0; |
687 | ||
9ae8ffe7 JL |
688 | /* 0 if pointer arguments may alias each other. True in C. |
689 | 1 if pointer arguments may not alias each other but may alias | |
690 | global variables. | |
691 | 2 if pointer arguments may not alias each other and may not | |
692 | alias global variables. True in Fortran. | |
693 | This defaults to 0 for C. */ | |
694 | int flag_argument_noalias = 0; | |
695 | ||
4291d9c8 RS |
696 | /* Table of language-independent -f options. |
697 | STRING is the option name. VARIABLE is the address of the variable. | |
698 | ON_VALUE is the value to store in VARIABLE | |
699 | if `-fSTRING' is seen as an option. | |
700 | (If `-fno-STRING' is seen as an option, the opposite value is stored.) */ | |
701 | ||
702 | struct { char *string; int *variable; int on_value;} f_options[] = | |
703 | { | |
704 | {"float-store", &flag_float_store, 1}, | |
705 | {"volatile", &flag_volatile, 1}, | |
38d4d0c2 | 706 | {"volatile-global", &flag_volatile_global, 1}, |
4291d9c8 RS |
707 | {"defer-pop", &flag_defer_pop, 1}, |
708 | {"omit-frame-pointer", &flag_omit_frame_pointer, 1}, | |
709 | {"cse-follow-jumps", &flag_cse_follow_jumps, 1}, | |
8b3686ed | 710 | {"cse-skip-blocks", &flag_cse_skip_blocks, 1}, |
4291d9c8 RS |
711 | {"expensive-optimizations", &flag_expensive_optimizations, 1}, |
712 | {"thread-jumps", &flag_thread_jumps, 1}, | |
713 | {"strength-reduce", &flag_strength_reduce, 1}, | |
714 | {"unroll-loops", &flag_unroll_loops, 1}, | |
715 | {"unroll-all-loops", &flag_unroll_all_loops, 1}, | |
e5eb27e5 JL |
716 | {"move-all-movables", &flag_move_all_movables, 1}, |
717 | {"reduce-all-givs", &flag_reduce_all_givs, 1}, | |
4291d9c8 RS |
718 | {"writable-strings", &flag_writable_strings, 1}, |
719 | {"peephole", &flag_no_peephole, 0}, | |
720 | {"force-mem", &flag_force_mem, 1}, | |
721 | {"force-addr", &flag_force_addr, 1}, | |
722 | {"function-cse", &flag_no_function_cse, 0}, | |
723 | {"inline-functions", &flag_inline_functions, 1}, | |
724 | {"keep-inline-functions", &flag_keep_inline_functions, 1}, | |
725 | {"inline", &flag_no_inline, 0}, | |
fbe912dd | 726 | {"keep-static-consts", &flag_keep_static_consts, 1}, |
4291d9c8 | 727 | {"syntax-only", &flag_syntax_only, 1}, |
4291d9c8 RS |
728 | {"shared-data", &flag_shared_data, 1}, |
729 | {"caller-saves", &flag_caller_saves, 1}, | |
730 | {"pcc-struct-return", &flag_pcc_struct_return, 1}, | |
958ec8ca | 731 | {"reg-struct-return", &flag_pcc_struct_return, 0}, |
4291d9c8 RS |
732 | {"delayed-branch", &flag_delayed_branch, 1}, |
733 | {"rerun-cse-after-loop", &flag_rerun_cse_after_loop, 1}, | |
6d6d0fa0 | 734 | {"rerun-loop-opt", &flag_rerun_loop_opt, 1}, |
4291d9c8 RS |
735 | {"pretend-float", &flag_pretend_float, 1}, |
736 | {"schedule-insns", &flag_schedule_insns, 1}, | |
737 | {"schedule-insns2", &flag_schedule_insns_after_reload, 1}, | |
8c660648 JL |
738 | #ifdef HAIFA |
739 | {"sched-interblock",&flag_schedule_interblock, 1}, | |
740 | {"sched-spec",&flag_schedule_speculative, 1}, | |
741 | {"sched-spec-load",&flag_schedule_speculative_load, 1}, | |
742 | {"sched-spec-load-dangerous",&flag_schedule_speculative_load_dangerous, 1}, | |
743 | {"sched-reverse-S",&flag_schedule_reverse_before_reload, 1}, | |
744 | {"sched-reverse-R",&flag_schedule_reverse_after_reload, 1}, | |
745 | {"branch-count-reg",&flag_branch_on_count_reg, 1}, | |
746 | #endif /* HAIFA */ | |
4291d9c8 RS |
747 | {"pic", &flag_pic, 1}, |
748 | {"PIC", &flag_pic, 2}, | |
3d195391 | 749 | {"exceptions", &flag_exceptions, 1}, |
e976b8b2 MS |
750 | {"sjlj-exceptions", &exceptions_via_longjmp, 1}, |
751 | {"asynchronous-exceptions", &asynchronous_exceptions, 1}, | |
0d332add DE |
752 | {"profile-arcs", &profile_arc_flag, 1}, |
753 | {"test-coverage", &flag_test_coverage, 1}, | |
754 | {"branch-probabilities", &flag_branch_probabilities, 1}, | |
43855b28 | 755 | {"fast-math", &flag_fast_math, 1}, |
4291d9c8 RS |
756 | {"common", &flag_no_common, 0}, |
757 | {"inhibit-size-directive", &flag_inhibit_size_directive, 1}, | |
cf440348 | 758 | {"function-sections", &flag_function_sections, 1}, |
9a631e8e | 759 | {"verbose-asm", &flag_verbose_asm, 1}, |
422e2ed3 | 760 | {"gnu-linker", &flag_gnu_linker, 1}, |
8c660648 | 761 | {"regmove", &flag_regmove, 1}, |
566cdc73 | 762 | {"pack-struct", &flag_pack_struct, 1}, |
bd83d0ac | 763 | {"stack-check", &flag_stack_check, 1}, |
9ae8ffe7 JL |
764 | {"argument-alias", &flag_argument_noalias, 0}, |
765 | {"argument-noalias", &flag_argument_noalias, 1}, | |
766 | {"argument-noalias-global", &flag_argument_noalias, 2}, | |
f602c208 RK |
767 | {"check-memory-usage", &flag_check_memory_usage, 1}, |
768 | {"prefix-function-name", &flag_prefix_function_name, 1} | |
4291d9c8 | 769 | }; |
b99933c7 RS |
770 | |
771 | /* Table of language-specific options. */ | |
772 | ||
773 | char *lang_options[] = | |
774 | { | |
4200c8de | 775 | "-ansi", |
8305445b | 776 | "-fallow-single-precision", |
4200c8de | 777 | |
b99933c7 RS |
778 | "-fsigned-bitfields", |
779 | "-funsigned-bitfields", | |
780 | "-fno-signed-bitfields", | |
781 | "-fno-unsigned-bitfields", | |
4200c8de RK |
782 | "-fsigned-char", |
783 | "-funsigned-char", | |
784 | "-fno-signed-char", | |
785 | "-fno-unsigned-char", | |
786 | ||
787 | "-ftraditional", | |
788 | "-traditional", | |
789 | "-fnotraditional", | |
790 | "-fno-traditional", | |
791 | ||
b99933c7 RS |
792 | "-fasm", |
793 | "-fno-asm", | |
794 | "-fbuiltin", | |
795 | "-fno-builtin", | |
5ae3bec5 RK |
796 | "-fhosted", |
797 | "-fno-hosted", | |
798 | "-ffreestanding", | |
799 | "-fno-freestanding", | |
4200c8de RK |
800 | "-fcond-mismatch", |
801 | "-fno-cond-mismatch", | |
c7daad38 | 802 | "-fdollars-in-identifiers", |
57f0a224 | 803 | "-fno-dollars-in-identifiers", |
4200c8de RK |
804 | "-fident", |
805 | "-fno-ident", | |
806 | "-fshort-double", | |
807 | "-fno-short-double", | |
808 | "-fshort-enums", | |
809 | "-fno-short-enums", | |
810 | ||
811 | "-Wall", | |
289871f0 RK |
812 | "-Wbad-function-cast", |
813 | "-Wno-bad-function-cast", | |
b99933c7 RS |
814 | "-Wcast-qual", |
815 | "-Wno-cast-qual", | |
b99933c7 RS |
816 | "-Wchar-subscripts", |
817 | "-Wno-char-subscripts", | |
b99933c7 RS |
818 | "-Wcomment", |
819 | "-Wno-comment", | |
820 | "-Wcomments", | |
821 | "-Wno-comments", | |
4200c8de RK |
822 | "-Wconversion", |
823 | "-Wno-conversion", | |
824 | "-Wformat", | |
825 | "-Wno-format", | |
b99933c7 RS |
826 | "-Wimport", |
827 | "-Wno-import", | |
e9a25f70 JL |
828 | "-Wimplicit-function-declaration", |
829 | "-Wno-implicit-function-declaration", | |
830 | "-Werror-implicit-function-declaration", | |
831 | "-Wimplicit-int", | |
832 | "-Wno-implicit-int", | |
4200c8de RK |
833 | "-Wimplicit", |
834 | "-Wno-implicit", | |
5ae3bec5 RK |
835 | "-Wmain", |
836 | "-Wno-main", | |
f41372d4 RS |
837 | "-Wmissing-braces", |
838 | "-Wno-missing-braces", | |
4200c8de RK |
839 | "-Wmissing-declarations", |
840 | "-Wno-missing-declarations", | |
841 | "-Wmissing-prototypes", | |
842 | "-Wno-missing-prototypes", | |
843 | "-Wnested-externs", | |
844 | "-Wno-nested-externs", | |
845 | "-Wparentheses", | |
846 | "-Wno-parentheses", | |
847 | "-Wpointer-arith", | |
848 | "-Wno-pointer-arith", | |
849 | "-Wredundant-decls", | |
850 | "-Wno-redundant-decls", | |
d51f9363 JM |
851 | "-Wsign-compare", |
852 | "-Wno-sign-compare", | |
eb96c120 NC |
853 | "-Wunknown-pragmas", |
854 | "-Wno-unknown-pragmas", | |
4200c8de RK |
855 | "-Wstrict-prototypes", |
856 | "-Wno-strict-prototypes", | |
857 | "-Wtraditional", | |
858 | "-Wno-traditional", | |
859 | "-Wtrigraphs", | |
860 | "-Wno-trigraphs", | |
c7710c1f RK |
861 | "-Wundef", |
862 | "-Wno-undef", | |
4200c8de RK |
863 | "-Wwrite-strings", |
864 | "-Wno-write-strings", | |
b99933c7 | 865 | |
65faa6a4 RS |
866 | /* these are for obj c */ |
867 | "-lang-objc", | |
868 | "-gen-decls", | |
f5309ddf TW |
869 | "-fgnu-runtime", |
870 | "-fno-gnu-runtime", | |
871 | "-fnext-runtime", | |
872 | "-fno-next-runtime", | |
65faa6a4 RS |
873 | "-Wselector", |
874 | "-Wno-selector", | |
b800a01b KKT |
875 | "-Wprotocol", |
876 | "-Wno-protocol", | |
956d6950 | 877 | "-print-objc-runtime-info", |
a457294f | 878 | |
2a95de17 | 879 | #include "options.h" |
b99933c7 RS |
880 | 0 |
881 | }; | |
4291d9c8 RS |
882 | \f |
883 | /* Options controlling warnings */ | |
884 | ||
885 | /* Don't print warning messages. -w. */ | |
886 | ||
887 | int inhibit_warnings = 0; | |
888 | ||
889 | /* Print various extra warnings. -W. */ | |
890 | ||
891 | int extra_warnings = 0; | |
892 | ||
893 | /* Treat warnings as errors. -Werror. */ | |
894 | ||
895 | int warnings_are_errors = 0; | |
896 | ||
897 | /* Nonzero to warn about unused local variables. */ | |
898 | ||
899 | int warn_unused; | |
900 | ||
901 | /* Nonzero to warn about variables used before they are initialized. */ | |
902 | ||
903 | int warn_uninitialized; | |
904 | ||
905 | /* Nonzero means warn about all declarations which shadow others. */ | |
906 | ||
907 | int warn_shadow; | |
908 | ||
909 | /* Warn if a switch on an enum fails to have a case for every enum value. */ | |
910 | ||
911 | int warn_switch; | |
912 | ||
913 | /* Nonzero means warn about function definitions that default the return type | |
914 | or that use a null return and have a return-type other than void. */ | |
915 | ||
916 | int warn_return_type; | |
917 | ||
918 | /* Nonzero means warn about pointer casts that increase the required | |
919 | alignment of the target type (and might therefore lead to a crash | |
920 | due to a misaligned access). */ | |
921 | ||
922 | int warn_cast_align; | |
923 | ||
924 | /* Nonzero means warn about any identifiers that match in the first N | |
925 | characters. The value N is in `id_clash_len'. */ | |
926 | ||
927 | int warn_id_clash; | |
b51e9c62 RK |
928 | unsigned id_clash_len; |
929 | ||
930 | /* Nonzero means warn about any objects definitions whose size is larger | |
931 | than N bytes. Also want about function definitions whose returned | |
932 | values are larger than N bytes. The value N is in `larger_than_size'. */ | |
933 | ||
934 | int warn_larger_than; | |
935 | unsigned larger_than_size; | |
4291d9c8 RS |
936 | |
937 | /* Nonzero means warn if inline function is too large. */ | |
938 | ||
939 | int warn_inline; | |
940 | ||
941 | /* Warn if a function returns an aggregate, | |
942 | since there are often incompatible calling conventions for doing this. */ | |
943 | ||
944 | int warn_aggregate_return; | |
945 | ||
946 | /* Likewise for -W. */ | |
947 | ||
948 | struct { char *string; int *variable; int on_value;} W_options[] = | |
949 | { | |
950 | {"unused", &warn_unused, 1}, | |
951 | {"error", &warnings_are_errors, 1}, | |
952 | {"shadow", &warn_shadow, 1}, | |
953 | {"switch", &warn_switch, 1}, | |
4291d9c8 RS |
954 | {"aggregate-return", &warn_aggregate_return, 1}, |
955 | {"cast-align", &warn_cast_align, 1}, | |
f246a305 RS |
956 | {"uninitialized", &warn_uninitialized, 1}, |
957 | {"inline", &warn_inline, 1} | |
4291d9c8 RS |
958 | }; |
959 | \f | |
960 | /* Output files for assembler code (real compiler output) | |
961 | and debugging dumps. */ | |
962 | ||
963 | FILE *asm_out_file; | |
964 | FILE *aux_info_file; | |
032713aa | 965 | FILE *rtl_dump_file = NULL; |
4291d9c8 RS |
966 | |
967 | /* Time accumulators, to count the total time spent in various passes. */ | |
968 | ||
969 | int parse_time; | |
970 | int varconst_time; | |
971 | int integration_time; | |
972 | int jump_time; | |
973 | int cse_time; | |
974 | int loop_time; | |
975 | int cse2_time; | |
0d332add | 976 | int branch_prob_time; |
4291d9c8 RS |
977 | int flow_time; |
978 | int combine_time; | |
8c660648 | 979 | int regmove_time; |
4291d9c8 RS |
980 | int sched_time; |
981 | int local_alloc_time; | |
982 | int global_alloc_time; | |
983 | int sched2_time; | |
984 | int dbr_sched_time; | |
985 | int shorten_branch_time; | |
986 | int stack_reg_time; | |
987 | int final_time; | |
988 | int symout_time; | |
989 | int dump_time; | |
990 | \f | |
991 | /* Return time used so far, in microseconds. */ | |
992 | ||
993 | int | |
994 | get_run_time () | |
995 | { | |
4291d9c8 RS |
996 | if (quiet_flag) |
997 | return 0; | |
83c8ddef | 998 | |
332c1bb4 JL |
999 | #ifdef __BEOS__ |
1000 | return 0; | |
1001 | #else /* not BeOS */ | |
ea466196 | 1002 | #if defined (_WIN32) && !defined (__CYGWIN32__) |
15f00097 RK |
1003 | if (clock() < 0) |
1004 | return 0; | |
1005 | else | |
1006 | return (clock() * 1000); | |
9580b583 | 1007 | #else /* not _WIN32 */ |
4e762a38 JC |
1008 | #ifdef _SC_CLK_TCK |
1009 | { | |
1010 | static int tick; | |
83c8ddef | 1011 | struct tms tms; |
4e762a38 JC |
1012 | if (tick == 0) |
1013 | tick = 1000000 / sysconf(_SC_CLK_TCK); | |
1014 | times (&tms); | |
1015 | return (tms.tms_utime + tms.tms_stime) * tick; | |
1016 | } | |
1017 | #else | |
4291d9c8 | 1018 | #ifdef USG |
83c8ddef RH |
1019 | { |
1020 | struct tms tms; | |
1021 | times (&tms); | |
1022 | return (tms.tms_utime + tms.tms_stime) * (1000000 / HZ); | |
1023 | } | |
4291d9c8 RS |
1024 | #else |
1025 | #ifndef VMS | |
83c8ddef RH |
1026 | { |
1027 | struct rusage rusage; | |
1028 | getrusage (0, &rusage); | |
1029 | return (rusage.ru_utime.tv_sec * 1000000 + rusage.ru_utime.tv_usec | |
1030 | + rusage.ru_stime.tv_sec * 1000000 + rusage.ru_stime.tv_usec); | |
1031 | } | |
4291d9c8 | 1032 | #else /* VMS */ |
83c8ddef RH |
1033 | { |
1034 | struct | |
1035 | { | |
1036 | int proc_user_time; | |
1037 | int proc_system_time; | |
1038 | int child_user_time; | |
1039 | int child_system_time; | |
1040 | } vms_times; | |
1041 | times ((void *) &vms_times); | |
1042 | return (vms_times.proc_user_time + vms_times.proc_system_time) * 10000; | |
1043 | } | |
c55dcc7d FF |
1044 | #endif /* VMS */ |
1045 | #endif /* USG */ | |
4e762a38 | 1046 | #endif /* _SC_CLK_TCK */ |
c55dcc7d FF |
1047 | #endif /* _WIN32 */ |
1048 | #endif /* __BEOS__ */ | |
4291d9c8 RS |
1049 | } |
1050 | ||
1051 | #define TIMEVAR(VAR, BODY) \ | |
1052 | do { int otime = get_run_time (); BODY; VAR += get_run_time () - otime; } while (0) | |
1053 | ||
1054 | void | |
1055 | print_time (str, total) | |
1056 | char *str; | |
1057 | int total; | |
1058 | { | |
1059 | fprintf (stderr, | |
1060 | "time in %s: %d.%06d\n", | |
1061 | str, total / 1000000, total % 1000000); | |
1062 | } | |
1063 | ||
1064 | /* Count an error or warning. Return 1 if the message should be printed. */ | |
1065 | ||
1066 | int | |
1067 | count_error (warningp) | |
1068 | int warningp; | |
1069 | { | |
1070 | if (warningp && inhibit_warnings) | |
1071 | return 0; | |
1072 | ||
1073 | if (warningp && !warnings_are_errors) | |
1074 | warningcount++; | |
1075 | else | |
1076 | { | |
1077 | static int warning_message = 0; | |
1078 | ||
1079 | if (warningp && !warning_message) | |
1080 | { | |
1081 | fprintf (stderr, "%s: warnings being treated as errors\n", progname); | |
1082 | warning_message = 1; | |
1083 | } | |
1084 | errorcount++; | |
1085 | } | |
1086 | ||
1087 | return 1; | |
1088 | } | |
1089 | ||
1090 | /* Print a fatal error message. NAME is the text. | |
1091 | Also include a system error message based on `errno'. */ | |
1092 | ||
1093 | void | |
1094 | pfatal_with_name (name) | |
1095 | char *name; | |
1096 | { | |
1097 | fprintf (stderr, "%s: ", progname); | |
1098 | perror (name); | |
299846f2 | 1099 | exit (FATAL_EXIT_CODE); |
4291d9c8 RS |
1100 | } |
1101 | ||
1102 | void | |
1103 | fatal_io_error (name) | |
1104 | char *name; | |
1105 | { | |
1106 | fprintf (stderr, "%s: %s: I/O error\n", progname, name); | |
299846f2 | 1107 | exit (FATAL_EXIT_CODE); |
4291d9c8 RS |
1108 | } |
1109 | ||
a89b2cc4 MM |
1110 | /* Called to give a better error message for a bad insn rather than |
1111 | just calling abort(). */ | |
4291d9c8 RS |
1112 | |
1113 | void | |
a89b2cc4 MM |
1114 | fatal_insn (message, insn) |
1115 | char *message; | |
4291d9c8 RS |
1116 | rtx insn; |
1117 | { | |
b93a436e JL |
1118 | error (message); |
1119 | debug_rtx (insn); | |
4291d9c8 RS |
1120 | if (asm_out_file) |
1121 | fflush (asm_out_file); | |
1122 | if (aux_info_file) | |
1123 | fflush (aux_info_file); | |
032713aa | 1124 | if (rtl_dump_file != NULL) |
4291d9c8 | 1125 | fflush (rtl_dump_file); |
1902f7fd MM |
1126 | fflush (stdout); |
1127 | fflush (stderr); | |
4291d9c8 RS |
1128 | abort (); |
1129 | } | |
1130 | ||
a89b2cc4 MM |
1131 | /* Called to give a better error message when we don't have an insn to match |
1132 | what we are looking for or if the insn's constraints aren't satisfied, | |
1133 | rather than just calling abort(). */ | |
1134 | ||
1135 | void | |
1136 | fatal_insn_not_found (insn) | |
1137 | rtx insn; | |
1138 | { | |
1139 | if (INSN_CODE (insn) < 0) | |
1140 | fatal_insn ("internal error--unrecognizable insn:", insn); | |
1141 | else | |
1142 | fatal_insn ("internal error--insn does not satisfy its constraints:", insn); | |
1143 | } | |
1144 | ||
4291d9c8 RS |
1145 | /* This is the default decl_printable_name function. */ |
1146 | ||
1147 | static char * | |
a1d7ffe3 | 1148 | decl_name (decl, verbosity) |
4291d9c8 | 1149 | tree decl; |
a1d7ffe3 | 1150 | int verbosity; |
4291d9c8 RS |
1151 | { |
1152 | return IDENTIFIER_POINTER (DECL_NAME (decl)); | |
1153 | } | |
1154 | \f | |
1155 | static int need_error_newline; | |
1156 | ||
1157 | /* Function of last error message; | |
1158 | more generally, function such that if next error message is in it | |
1159 | then we don't have to mention the function name. */ | |
1160 | static tree last_error_function = NULL; | |
1161 | ||
1162 | /* Used to detect when input_file_stack has changed since last described. */ | |
1163 | static int last_error_tick; | |
1164 | ||
1165 | /* Called when the start of a function definition is parsed, | |
1166 | this function prints on stderr the name of the function. */ | |
1167 | ||
1168 | void | |
1169 | announce_function (decl) | |
1170 | tree decl; | |
1171 | { | |
1172 | if (! quiet_flag) | |
1173 | { | |
4291d9c8 RS |
1174 | if (rtl_dump_and_exit) |
1175 | fprintf (stderr, "%s ", IDENTIFIER_POINTER (DECL_NAME (decl))); | |
1176 | else | |
a1d7ffe3 | 1177 | fprintf (stderr, " %s", (*decl_printable_name) (decl, 2)); |
4291d9c8 RS |
1178 | fflush (stderr); |
1179 | need_error_newline = 1; | |
1180 | last_error_function = current_function_decl; | |
1181 | } | |
1182 | } | |
1183 | ||
b64e9948 PB |
1184 | /* The default function to print out name of current function that caused |
1185 | an error. */ | |
4291d9c8 RS |
1186 | |
1187 | void | |
b64e9948 | 1188 | default_print_error_function (file) |
4291d9c8 RS |
1189 | char *file; |
1190 | { | |
4291d9c8 RS |
1191 | if (last_error_function != current_function_decl) |
1192 | { | |
1193 | char *kind = "function"; | |
1194 | if (current_function_decl != 0 | |
1195 | && TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE) | |
1196 | kind = "method"; | |
1197 | ||
1198 | if (file) | |
1199 | fprintf (stderr, "%s: ", file); | |
1200 | ||
1201 | if (current_function_decl == NULL) | |
1202 | fprintf (stderr, "At top level:\n"); | |
1203 | else | |
1204 | { | |
a1d7ffe3 | 1205 | char *name = (*decl_printable_name) (current_function_decl, 2); |
4291d9c8 RS |
1206 | fprintf (stderr, "In %s `%s':\n", kind, name); |
1207 | } | |
1208 | ||
1209 | last_error_function = current_function_decl; | |
1210 | } | |
b64e9948 PB |
1211 | } |
1212 | ||
1213 | /* Called by report_error_function to print out function name. | |
0f41302f | 1214 | * Default may be overridden by language front-ends. */ |
b64e9948 | 1215 | |
0f41302f | 1216 | void (*print_error_function) PROTO((char *)) = default_print_error_function; |
b64e9948 PB |
1217 | |
1218 | /* Prints out, if necessary, the name of the current function | |
1219 | that caused an error. Called from all error and warning functions. */ | |
1220 | ||
1221 | void | |
1222 | report_error_function (file) | |
1223 | char *file; | |
1224 | { | |
1225 | struct file_stack *p; | |
1226 | ||
1227 | if (need_error_newline) | |
1228 | { | |
1229 | fprintf (stderr, "\n"); | |
1230 | need_error_newline = 0; | |
1231 | } | |
1232 | ||
1233 | (*print_error_function) (file); | |
1234 | ||
4291d9c8 | 1235 | if (input_file_stack && input_file_stack->next != 0 |
2efc92ed RK |
1236 | && input_file_stack_tick != last_error_tick |
1237 | && file == input_filename) | |
4291d9c8 RS |
1238 | { |
1239 | fprintf (stderr, "In file included"); | |
1240 | for (p = input_file_stack->next; p; p = p->next) | |
1241 | { | |
1242 | fprintf (stderr, " from %s:%d", p->name, p->line); | |
1243 | if (p->next) | |
e5301904 | 1244 | fprintf (stderr, ",\n "); |
4291d9c8 RS |
1245 | } |
1246 | fprintf (stderr, ":\n"); | |
1247 | last_error_tick = input_file_stack_tick; | |
1248 | } | |
1249 | } | |
eb711c86 RK |
1250 | \f |
1251 | /* Print a message. */ | |
4291d9c8 | 1252 | |
eb711c86 RK |
1253 | static void |
1254 | vmessage (prefix, s, ap) | |
1255 | char *prefix; | |
4291d9c8 | 1256 | char *s; |
eb711c86 | 1257 | va_list ap; |
4291d9c8 | 1258 | { |
eb711c86 RK |
1259 | if (prefix) |
1260 | fprintf (stderr, "%s: ", prefix); | |
1261 | ||
1262 | #ifdef HAVE_VPRINTF | |
1263 | vfprintf (stderr, s, ap); | |
1264 | #else | |
1265 | { | |
1266 | HOST_WIDE_INT v1 = va_arg(ap, HOST_WIDE_INT); | |
1267 | HOST_WIDE_INT v2 = va_arg(ap, HOST_WIDE_INT); | |
1268 | HOST_WIDE_INT v3 = va_arg(ap, HOST_WIDE_INT); | |
a4326b4d RK |
1269 | HOST_WIDE_INT v4 = va_arg(ap, HOST_WIDE_INT); |
1270 | fprintf (stderr, s, v1, v2, v3, v4); | |
eb711c86 RK |
1271 | } |
1272 | #endif | |
4291d9c8 RS |
1273 | } |
1274 | ||
eb711c86 | 1275 | /* Print a message relevant to line LINE of file FILE. */ |
4291d9c8 | 1276 | |
eb711c86 RK |
1277 | static void |
1278 | v_message_with_file_and_line (file, line, prefix, s, ap) | |
4291d9c8 RS |
1279 | char *file; |
1280 | int line; | |
eb711c86 | 1281 | char *prefix; |
4291d9c8 | 1282 | char *s; |
eb711c86 | 1283 | va_list ap; |
4291d9c8 | 1284 | { |
4291d9c8 RS |
1285 | if (file) |
1286 | fprintf (stderr, "%s:%d: ", file, line); | |
1287 | else | |
1288 | fprintf (stderr, "%s: ", progname); | |
d78c6ad5 | 1289 | |
eb711c86 RK |
1290 | vmessage (prefix, s, ap); |
1291 | fputc ('\n', stderr); | |
4291d9c8 RS |
1292 | } |
1293 | ||
eb711c86 | 1294 | /* Print a message relevant to the given DECL. */ |
4291d9c8 | 1295 | |
eb711c86 RK |
1296 | static void |
1297 | v_message_with_decl (decl, prefix, s, ap) | |
4291d9c8 | 1298 | tree decl; |
eb711c86 | 1299 | char *prefix; |
4291d9c8 | 1300 | char *s; |
eb711c86 | 1301 | va_list ap; |
4291d9c8 | 1302 | { |
a1d7ffe3 | 1303 | char *n, *p; |
4291d9c8 RS |
1304 | |
1305 | fprintf (stderr, "%s:%d: ", | |
1306 | DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl)); | |
1307 | ||
eb711c86 RK |
1308 | if (prefix) |
1309 | fprintf (stderr, "%s: ", prefix); | |
1310 | ||
1311 | /* Do magic to get around lack of varargs support for insertion | |
1312 | of arguments into existing list. We know that the decl is first; | |
1313 | we ass_u_me that it will be printed with "%s". */ | |
1314 | ||
1315 | for (p = s; *p; ++p) | |
1316 | { | |
1317 | if (*p == '%') | |
1318 | { | |
1319 | if (*(p + 1) == '%') | |
1320 | ++p; | |
1321 | else | |
1322 | break; | |
1323 | } | |
1324 | } | |
1325 | ||
cb039f8a RK |
1326 | if (p > s) /* Print the left-hand substring. */ |
1327 | { | |
1328 | char fmt[sizeof "%.255s"]; | |
1329 | long width = p - s; | |
1330 | ||
1331 | if (width > 255L) width = 255L; /* arbitrary */ | |
1332 | sprintf (fmt, "%%.%lds", width); | |
1333 | fprintf (stderr, fmt, s); | |
1334 | } | |
eb711c86 | 1335 | |
cb039f8a | 1336 | if (*p == '%') /* Print the name. */ |
eb711c86 RK |
1337 | { |
1338 | char *n = (DECL_NAME (decl) | |
a1d7ffe3 | 1339 | ? (*decl_printable_name) (decl, 2) |
eb711c86 RK |
1340 | : "((anonymous))"); |
1341 | fputs (n, stderr); | |
1342 | while (*p) | |
1343 | { | |
1344 | ++p; | |
1345 | if (isalpha (*(p - 1) & 0xFF)) | |
1346 | break; | |
1347 | } | |
1348 | } | |
1349 | ||
cb039f8a | 1350 | if (*p) /* Print the rest of the message. */ |
eb711c86 RK |
1351 | vmessage ((char *)NULL, p, ap); |
1352 | ||
1353 | fputc ('\n', stderr); | |
4291d9c8 RS |
1354 | } |
1355 | ||
eb711c86 | 1356 | /* Figure file and line of the given INSN. */ |
4291d9c8 | 1357 | |
eb711c86 RK |
1358 | static void |
1359 | file_and_line_for_asm (insn, pfile, pline) | |
4291d9c8 | 1360 | rtx insn; |
eb711c86 RK |
1361 | char **pfile; |
1362 | int *pline; | |
4291d9c8 | 1363 | { |
4291d9c8 RS |
1364 | rtx body = PATTERN (insn); |
1365 | rtx asmop; | |
1366 | ||
1367 | /* Find the (or one of the) ASM_OPERANDS in the insn. */ | |
1368 | if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS) | |
1369 | asmop = SET_SRC (body); | |
1370 | else if (GET_CODE (body) == ASM_OPERANDS) | |
1371 | asmop = body; | |
1372 | else if (GET_CODE (body) == PARALLEL | |
1373 | && GET_CODE (XVECEXP (body, 0, 0)) == SET) | |
1374 | asmop = SET_SRC (XVECEXP (body, 0, 0)); | |
1375 | else if (GET_CODE (body) == PARALLEL | |
1376 | && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS) | |
1377 | asmop = XVECEXP (body, 0, 0); | |
eb711c86 RK |
1378 | else |
1379 | asmop = NULL; | |
1380 | ||
1381 | if (asmop) | |
1382 | { | |
1383 | *pfile = ASM_OPERANDS_SOURCE_FILE (asmop); | |
1384 | *pline = ASM_OPERANDS_SOURCE_LINE (asmop); | |
1385 | } | |
1386 | else | |
1387 | { | |
1388 | *pfile = input_filename; | |
1389 | *pline = lineno; | |
1390 | } | |
1391 | } | |
4291d9c8 | 1392 | |
eb711c86 | 1393 | /* Report an error at line LINE of file FILE. */ |
4291d9c8 | 1394 | |
eb711c86 RK |
1395 | static void |
1396 | v_error_with_file_and_line (file, line, s, ap) | |
1397 | char *file; | |
1398 | int line; | |
1399 | char *s; | |
1400 | va_list ap; | |
1401 | { | |
1402 | count_error (0); | |
1403 | report_error_function (file); | |
1404 | v_message_with_file_and_line (file, line, (char *)NULL, s, ap); | |
d78c6ad5 RK |
1405 | } |
1406 | ||
1407 | void | |
e0e2a8da | 1408 | error_with_file_and_line VPROTO((char *file, int line, char *s, ...)) |
d78c6ad5 | 1409 | { |
e0e2a8da | 1410 | #ifndef __STDC__ |
eb711c86 RK |
1411 | char *file; |
1412 | int line; | |
1413 | char *s; | |
e0e2a8da RK |
1414 | #endif |
1415 | va_list ap; | |
1416 | ||
1417 | VA_START (ap, s); | |
eb711c86 | 1418 | |
e0e2a8da | 1419 | #ifndef __STDC__ |
eb711c86 RK |
1420 | file = va_arg (ap, char *); |
1421 | line = va_arg (ap, int); | |
1422 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1423 | #endif |
1424 | ||
eb711c86 RK |
1425 | v_error_with_file_and_line (file, line, s, ap); |
1426 | va_end (ap); | |
4291d9c8 RS |
1427 | } |
1428 | ||
eb711c86 RK |
1429 | /* Report an error at the declaration DECL. |
1430 | S is a format string which uses %s to substitute the declaration | |
1431 | name; subsequent substitutions are a la printf. */ | |
1432 | ||
1433 | static void | |
1434 | v_error_with_decl (decl, s, ap) | |
1435 | tree decl; | |
1436 | char *s; | |
1437 | va_list ap; | |
1438 | { | |
1439 | count_error (0); | |
1440 | report_error_function (DECL_SOURCE_FILE (decl)); | |
1441 | v_message_with_decl (decl, (char *)NULL, s, ap); | |
1442 | } | |
4291d9c8 RS |
1443 | |
1444 | void | |
e0e2a8da | 1445 | error_with_decl VPROTO((tree decl, char *s, ...)) |
eb711c86 | 1446 | { |
e0e2a8da | 1447 | #ifndef __STDC__ |
eb711c86 RK |
1448 | tree decl; |
1449 | char *s; | |
e0e2a8da RK |
1450 | #endif |
1451 | va_list ap; | |
eb711c86 | 1452 | |
e0e2a8da RK |
1453 | VA_START (ap, s); |
1454 | ||
1455 | #ifndef __STDC__ | |
eb711c86 RK |
1456 | decl = va_arg (ap, tree); |
1457 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1458 | #endif |
1459 | ||
eb711c86 RK |
1460 | v_error_with_decl (decl, s, ap); |
1461 | va_end (ap); | |
1462 | } | |
1463 | ||
1464 | /* Report an error at the line number of the insn INSN. | |
1465 | This is used only when INSN is an `asm' with operands, | |
1466 | and each ASM_OPERANDS records its own source file and line. */ | |
1467 | ||
1468 | static void | |
1469 | v_error_for_asm (insn, s, ap) | |
1470 | rtx insn; | |
4291d9c8 | 1471 | char *s; |
eb711c86 | 1472 | va_list ap; |
4291d9c8 | 1473 | { |
eb711c86 RK |
1474 | char *file; |
1475 | int line; | |
4291d9c8 | 1476 | |
eb711c86 RK |
1477 | count_error (0); |
1478 | file_and_line_for_asm (insn, &file, &line); | |
4291d9c8 | 1479 | report_error_function (file); |
eb711c86 RK |
1480 | v_message_with_file_and_line (file, line, (char *)NULL, s, ap); |
1481 | } | |
4291d9c8 | 1482 | |
eb711c86 | 1483 | void |
e0e2a8da | 1484 | error_for_asm VPROTO((rtx insn, char *s, ...)) |
eb711c86 | 1485 | { |
e0e2a8da | 1486 | #ifndef __STDC__ |
eb711c86 RK |
1487 | rtx insn; |
1488 | char *s; | |
e0e2a8da RK |
1489 | #endif |
1490 | va_list ap; | |
eb711c86 | 1491 | |
e0e2a8da RK |
1492 | VA_START (ap, s); |
1493 | ||
1494 | #ifndef __STDC__ | |
eb711c86 RK |
1495 | insn = va_arg (ap, rtx); |
1496 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1497 | #endif |
1498 | ||
eb711c86 RK |
1499 | v_error_for_asm (insn, s, ap); |
1500 | va_end (ap); | |
4291d9c8 RS |
1501 | } |
1502 | ||
eb711c86 | 1503 | /* Report an error at the current line number. */ |
4291d9c8 | 1504 | |
eb711c86 RK |
1505 | static void |
1506 | verror (s, ap) | |
4291d9c8 | 1507 | char *s; |
eb711c86 | 1508 | va_list ap; |
4291d9c8 | 1509 | { |
eb711c86 | 1510 | v_error_with_file_and_line (input_filename, lineno, s, ap); |
4291d9c8 RS |
1511 | } |
1512 | ||
eb711c86 | 1513 | void |
e0e2a8da | 1514 | error VPROTO((char *s, ...)) |
eb711c86 | 1515 | { |
e0e2a8da | 1516 | #ifndef __STDC__ |
eb711c86 | 1517 | char *s; |
e0e2a8da RK |
1518 | #endif |
1519 | va_list ap; | |
1520 | ||
1521 | VA_START (ap, s); | |
eb711c86 | 1522 | |
e0e2a8da | 1523 | #ifndef __STDC__ |
eb711c86 | 1524 | s = va_arg (ap, char *); |
e0e2a8da RK |
1525 | #endif |
1526 | ||
eb711c86 RK |
1527 | verror (s, ap); |
1528 | va_end (ap); | |
1529 | } | |
1530 | ||
1531 | /* Report a fatal error at the current line number. */ | |
1532 | ||
1533 | static void | |
1534 | vfatal (s, ap) | |
1535 | char *s; | |
1536 | va_list ap; | |
1537 | { | |
1538 | verror (s, ap); | |
299846f2 | 1539 | exit (FATAL_EXIT_CODE); |
eb711c86 | 1540 | } |
4291d9c8 RS |
1541 | |
1542 | void | |
e0e2a8da | 1543 | fatal VPROTO((char *s, ...)) |
eb711c86 | 1544 | { |
e0e2a8da | 1545 | #ifndef __STDC__ |
eb711c86 | 1546 | char *s; |
e0e2a8da RK |
1547 | #endif |
1548 | va_list ap; | |
1549 | ||
1550 | VA_START (ap, s); | |
eb711c86 | 1551 | |
e0e2a8da | 1552 | #ifndef __STDC__ |
eb711c86 | 1553 | s = va_arg (ap, char *); |
e0e2a8da RK |
1554 | #endif |
1555 | ||
eb711c86 RK |
1556 | vfatal (s, ap); |
1557 | va_end (ap); | |
1558 | } | |
1559 | ||
1560 | /* Report a warning at line LINE of file FILE. */ | |
1561 | ||
1562 | static void | |
1563 | v_warning_with_file_and_line (file, line, s, ap) | |
1564 | char *file; | |
1565 | int line; | |
4291d9c8 | 1566 | char *s; |
eb711c86 | 1567 | va_list ap; |
4291d9c8 | 1568 | { |
eb711c86 RK |
1569 | if (count_error (1)) |
1570 | { | |
1571 | report_error_function (file); | |
1572 | v_message_with_file_and_line (file, line, "warning", s, ap); | |
1573 | } | |
1574 | } | |
4291d9c8 | 1575 | |
eb711c86 | 1576 | void |
e0e2a8da | 1577 | warning_with_file_and_line VPROTO((char *file, int line, char *s, ...)) |
eb711c86 | 1578 | { |
e0e2a8da | 1579 | #ifndef __STDC__ |
eb711c86 RK |
1580 | char *file; |
1581 | int line; | |
1582 | char *s; | |
e0e2a8da RK |
1583 | #endif |
1584 | va_list ap; | |
1585 | ||
1586 | VA_START (ap, s); | |
eb711c86 | 1587 | |
e0e2a8da | 1588 | #ifndef __STDC__ |
eb711c86 RK |
1589 | file = va_arg (ap, char *); |
1590 | line = va_arg (ap, int); | |
1591 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1592 | #endif |
1593 | ||
eb711c86 RK |
1594 | v_warning_with_file_and_line (file, line, s, ap); |
1595 | va_end (ap); | |
1596 | } | |
4291d9c8 | 1597 | |
eb711c86 RK |
1598 | /* Report a warning at the declaration DECL. |
1599 | S is a format string which uses %s to substitute the declaration | |
1600 | name; subsequent substitutions are a la printf. */ | |
4291d9c8 | 1601 | |
eb711c86 RK |
1602 | static void |
1603 | v_warning_with_decl (decl, s, ap) | |
1604 | tree decl; | |
1605 | char *s; | |
1606 | va_list ap; | |
1607 | { | |
1608 | if (count_error (1)) | |
1609 | { | |
1610 | report_error_function (DECL_SOURCE_FILE (decl)); | |
1611 | v_message_with_decl (decl, "warning", s, ap); | |
1612 | } | |
1613 | } | |
4291d9c8 | 1614 | |
eb711c86 | 1615 | void |
e0e2a8da | 1616 | warning_with_decl VPROTO((tree decl, char *s, ...)) |
eb711c86 | 1617 | { |
e0e2a8da | 1618 | #ifndef __STDC__ |
eb711c86 RK |
1619 | tree decl; |
1620 | char *s; | |
e0e2a8da RK |
1621 | #endif |
1622 | va_list ap; | |
eb711c86 | 1623 | |
e0e2a8da RK |
1624 | VA_START (ap, s); |
1625 | ||
1626 | #ifndef __STDC__ | |
eb711c86 RK |
1627 | decl = va_arg (ap, tree); |
1628 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1629 | #endif |
1630 | ||
eb711c86 RK |
1631 | v_warning_with_decl (decl, s, ap); |
1632 | va_end (ap); | |
4291d9c8 RS |
1633 | } |
1634 | ||
1635 | /* Report a warning at the line number of the insn INSN. | |
4291d9c8 RS |
1636 | This is used only when INSN is an `asm' with operands, |
1637 | and each ASM_OPERANDS records its own source file and line. */ | |
1638 | ||
eb711c86 RK |
1639 | static void |
1640 | v_warning_for_asm (insn, s, ap) | |
4291d9c8 RS |
1641 | rtx insn; |
1642 | char *s; | |
eb711c86 | 1643 | va_list ap; |
4291d9c8 | 1644 | { |
eb711c86 RK |
1645 | if (count_error (1)) |
1646 | { | |
1647 | char *file; | |
1648 | int line; | |
4291d9c8 | 1649 | |
eb711c86 RK |
1650 | file_and_line_for_asm (insn, &file, &line); |
1651 | report_error_function (file); | |
1652 | v_message_with_file_and_line (file, line, "warning", s, ap); | |
1653 | } | |
1654 | } | |
4291d9c8 | 1655 | |
eb711c86 | 1656 | void |
e0e2a8da | 1657 | warning_for_asm VPROTO((rtx insn, char *s, ...)) |
eb711c86 | 1658 | { |
e0e2a8da | 1659 | #ifndef __STDC__ |
eb711c86 RK |
1660 | rtx insn; |
1661 | char *s; | |
e0e2a8da RK |
1662 | #endif |
1663 | va_list ap; | |
1664 | ||
1665 | VA_START (ap, s); | |
eb711c86 | 1666 | |
e0e2a8da | 1667 | #ifndef __STDC__ |
eb711c86 RK |
1668 | insn = va_arg (ap, rtx); |
1669 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1670 | #endif |
1671 | ||
eb711c86 RK |
1672 | v_warning_for_asm (insn, s, ap); |
1673 | va_end (ap); | |
1674 | } | |
4291d9c8 | 1675 | |
eb711c86 RK |
1676 | /* Report a warning at the current line number. */ |
1677 | ||
1678 | static void | |
1679 | vwarning (s, ap) | |
1680 | char *s; | |
1681 | va_list ap; | |
1682 | { | |
1683 | v_warning_with_file_and_line (input_filename, lineno, s, ap); | |
4291d9c8 | 1684 | } |
eb711c86 RK |
1685 | |
1686 | void | |
e0e2a8da | 1687 | warning VPROTO((char *s, ...)) |
eb711c86 | 1688 | { |
e0e2a8da | 1689 | #ifndef __STDC__ |
eb711c86 | 1690 | char *s; |
e0e2a8da RK |
1691 | #endif |
1692 | va_list ap; | |
1693 | ||
1694 | VA_START (ap, s); | |
eb711c86 | 1695 | |
e0e2a8da | 1696 | #ifndef __STDC__ |
eb711c86 | 1697 | s = va_arg (ap, char *); |
e0e2a8da RK |
1698 | #endif |
1699 | ||
eb711c86 RK |
1700 | vwarning (s, ap); |
1701 | va_end (ap); | |
1702 | } | |
1703 | ||
4291d9c8 RS |
1704 | /* These functions issue either warnings or errors depending on |
1705 | -pedantic-errors. */ | |
1706 | ||
eb711c86 RK |
1707 | static void |
1708 | vpedwarn (s, ap) | |
4291d9c8 | 1709 | char *s; |
eb711c86 | 1710 | va_list ap; |
4291d9c8 RS |
1711 | { |
1712 | if (flag_pedantic_errors) | |
eb711c86 | 1713 | verror (s, ap); |
4291d9c8 | 1714 | else |
eb711c86 | 1715 | vwarning (s, ap); |
4291d9c8 RS |
1716 | } |
1717 | ||
1718 | void | |
e0e2a8da | 1719 | pedwarn VPROTO((char *s, ...)) |
eb711c86 | 1720 | { |
e0e2a8da | 1721 | #ifndef __STDC__ |
eb711c86 | 1722 | char *s; |
e0e2a8da RK |
1723 | #endif |
1724 | va_list ap; | |
1725 | ||
1726 | VA_START (ap, s); | |
eb711c86 | 1727 | |
e0e2a8da | 1728 | #ifndef __STDC__ |
eb711c86 | 1729 | s = va_arg (ap, char *); |
e0e2a8da RK |
1730 | #endif |
1731 | ||
eb711c86 RK |
1732 | vpedwarn (s, ap); |
1733 | va_end (ap); | |
1734 | } | |
1735 | ||
1736 | static void | |
1737 | v_pedwarn_with_decl (decl, s, ap) | |
4291d9c8 RS |
1738 | tree decl; |
1739 | char *s; | |
eb711c86 | 1740 | va_list ap; |
4291d9c8 | 1741 | { |
1554cdf5 DE |
1742 | /* We don't want -pedantic-errors to cause the compilation to fail from |
1743 | "errors" in system header files. Sometimes fixincludes can't fix what's | |
1744 | broken (eg: unsigned char bitfields - fixing it may change the alignment | |
1745 | which will cause programs to mysteriously fail because the C library | |
22d74562 DE |
1746 | or kernel uses the original layout). There's no point in issuing a |
1747 | warning either, it's just unnecessary noise. */ | |
1554cdf5 | 1748 | |
22d74562 DE |
1749 | if (! DECL_IN_SYSTEM_HEADER (decl)) |
1750 | { | |
1751 | if (flag_pedantic_errors) | |
1752 | v_error_with_decl (decl, s, ap); | |
1753 | else | |
1754 | v_warning_with_decl (decl, s, ap); | |
1755 | } | |
4291d9c8 RS |
1756 | } |
1757 | ||
1758 | void | |
e0e2a8da | 1759 | pedwarn_with_decl VPROTO((tree decl, char *s, ...)) |
eb711c86 | 1760 | { |
e0e2a8da | 1761 | #ifndef __STDC__ |
eb711c86 RK |
1762 | tree decl; |
1763 | char *s; | |
e0e2a8da RK |
1764 | #endif |
1765 | va_list ap; | |
eb711c86 | 1766 | |
e0e2a8da RK |
1767 | VA_START (ap, s); |
1768 | ||
1769 | #ifndef __STDC__ | |
eb711c86 RK |
1770 | decl = va_arg (ap, tree); |
1771 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1772 | #endif |
1773 | ||
eb711c86 RK |
1774 | v_pedwarn_with_decl (decl, s, ap); |
1775 | va_end (ap); | |
1776 | } | |
1777 | ||
1778 | static void | |
1779 | v_pedwarn_with_file_and_line (file, line, s, ap) | |
4291d9c8 RS |
1780 | char *file; |
1781 | int line; | |
1782 | char *s; | |
eb711c86 | 1783 | va_list ap; |
4291d9c8 RS |
1784 | { |
1785 | if (flag_pedantic_errors) | |
eb711c86 | 1786 | v_error_with_file_and_line (file, line, s, ap); |
4291d9c8 | 1787 | else |
eb711c86 | 1788 | v_warning_with_file_and_line (file, line, s, ap); |
4291d9c8 RS |
1789 | } |
1790 | ||
4291d9c8 | 1791 | void |
e0e2a8da | 1792 | pedwarn_with_file_and_line VPROTO((char *file, int line, char *s, ...)) |
eb711c86 | 1793 | { |
e0e2a8da | 1794 | #ifndef __STDC__ |
eb711c86 RK |
1795 | char *file; |
1796 | int line; | |
1797 | char *s; | |
e0e2a8da RK |
1798 | #endif |
1799 | va_list ap; | |
eb711c86 | 1800 | |
e0e2a8da RK |
1801 | VA_START (ap, s); |
1802 | ||
1803 | #ifndef __STDC__ | |
eb711c86 RK |
1804 | file = va_arg (ap, char *); |
1805 | line = va_arg (ap, int); | |
1806 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1807 | #endif |
1808 | ||
eb711c86 RK |
1809 | v_pedwarn_with_file_and_line (file, line, s, ap); |
1810 | va_end (ap); | |
1811 | } | |
1812 | ||
1813 | /* Apologize for not implementing some feature. */ | |
1814 | ||
1815 | static void | |
1816 | vsorry (s, ap) | |
4291d9c8 | 1817 | char *s; |
eb711c86 | 1818 | va_list ap; |
4291d9c8 RS |
1819 | { |
1820 | sorrycount++; | |
1821 | if (input_filename) | |
1822 | fprintf (stderr, "%s:%d: ", input_filename, lineno); | |
1823 | else | |
1824 | fprintf (stderr, "%s: ", progname); | |
eb711c86 RK |
1825 | vmessage ("sorry, not implemented", s, ap); |
1826 | fputc ('\n', stderr); | |
1827 | } | |
4291d9c8 | 1828 | |
eb711c86 | 1829 | void |
e0e2a8da | 1830 | sorry VPROTO((char *s, ...)) |
eb711c86 | 1831 | { |
e0e2a8da | 1832 | #ifndef __STDC__ |
eb711c86 | 1833 | char *s; |
e0e2a8da RK |
1834 | #endif |
1835 | va_list ap; | |
1836 | ||
1837 | VA_START (ap, s); | |
eb711c86 | 1838 | |
e0e2a8da | 1839 | #ifndef __STDC__ |
eb711c86 | 1840 | s = va_arg (ap, char *); |
e0e2a8da RK |
1841 | #endif |
1842 | ||
eb711c86 RK |
1843 | vsorry (s, ap); |
1844 | va_end (ap); | |
4291d9c8 RS |
1845 | } |
1846 | ||
eb711c86 | 1847 | /* Apologize for not implementing some feature, then quit. */ |
4291d9c8 | 1848 | |
eb711c86 RK |
1849 | static void |
1850 | v_really_sorry (s, ap) | |
4291d9c8 | 1851 | char *s; |
eb711c86 | 1852 | va_list ap; |
4291d9c8 | 1853 | { |
eb711c86 | 1854 | sorrycount++; |
4291d9c8 RS |
1855 | if (input_filename) |
1856 | fprintf (stderr, "%s:%d: ", input_filename, lineno); | |
1857 | else | |
c10afc44 | 1858 | fprintf (stderr, "%s: ", progname); |
eb711c86 | 1859 | vmessage ("sorry, not implemented", s, ap); |
4291d9c8 RS |
1860 | fatal (" (fatal)\n"); |
1861 | } | |
eb711c86 RK |
1862 | |
1863 | void | |
e0e2a8da | 1864 | really_sorry VPROTO((char *s, ...)) |
eb711c86 | 1865 | { |
e0e2a8da | 1866 | #ifndef __STDC__ |
eb711c86 | 1867 | char *s; |
e0e2a8da RK |
1868 | #endif |
1869 | va_list ap; | |
1870 | ||
1871 | VA_START (ap, s); | |
eb711c86 | 1872 | |
e0e2a8da | 1873 | #ifndef __STDC__ |
eb711c86 | 1874 | s = va_arg (ap, char *); |
e0e2a8da RK |
1875 | #endif |
1876 | ||
eb711c86 RK |
1877 | v_really_sorry (s, ap); |
1878 | va_end (ap); | |
1879 | } | |
4291d9c8 RS |
1880 | \f |
1881 | /* More 'friendly' abort that prints the line and file. | |
1882 | config.h can #define abort fancy_abort if you like that sort of thing. | |
1883 | ||
1884 | I don't think this is actually a good idea. | |
1885 | Other sorts of crashes will look a certain way. | |
1886 | It is a good thing if crashes from calling abort look the same way. | |
1887 | -- RMS */ | |
1888 | ||
1889 | void | |
1890 | fancy_abort () | |
1891 | { | |
1892 | fatal ("internal gcc abort"); | |
1893 | } | |
1894 | ||
1895 | /* This calls abort and is used to avoid problems when abort if a macro. | |
1896 | It is used when we need to pass the address of abort. */ | |
1897 | ||
1898 | void | |
1899 | do_abort () | |
1900 | { | |
1901 | abort (); | |
1902 | } | |
1903 | ||
1904 | /* When `malloc.c' is compiled with `rcheck' defined, | |
1905 | it calls this function to report clobberage. */ | |
1906 | ||
1907 | void | |
1908 | botch (s) | |
1909 | { | |
1910 | abort (); | |
1911 | } | |
1912 | ||
1913 | /* Same as `malloc' but report error if no memory available. */ | |
1914 | ||
4b980e20 | 1915 | char * |
4291d9c8 RS |
1916 | xmalloc (size) |
1917 | unsigned size; | |
1918 | { | |
4b980e20 | 1919 | register char *value = (char *) malloc (size); |
809d135d | 1920 | if (value == 0 && size != 0) |
4291d9c8 RS |
1921 | fatal ("virtual memory exhausted"); |
1922 | return value; | |
1923 | } | |
1924 | ||
e9a25f70 JL |
1925 | /* Same as `realloc' but report error if no memory available. |
1926 | Also handle null PTR even if the vendor realloc gets it wrong. */ | |
4291d9c8 | 1927 | |
4b980e20 | 1928 | char * |
4291d9c8 RS |
1929 | xrealloc (ptr, size) |
1930 | char *ptr; | |
1931 | int size; | |
1932 | { | |
e9a25f70 JL |
1933 | char *result = (ptr |
1934 | ? (char *) realloc (ptr, size) | |
1935 | : (char *) malloc (size)); | |
4291d9c8 RS |
1936 | if (!result) |
1937 | fatal ("virtual memory exhausted"); | |
1938 | return result; | |
1939 | } | |
3e386b9e RK |
1940 | |
1941 | /* Same as `strdup' but report error if no memory available. */ | |
1942 | ||
1943 | char * | |
1944 | xstrdup (s) | |
1945 | register char *s; | |
1946 | { | |
1947 | register char *result = (char *) malloc (strlen (s) + 1); | |
1948 | ||
1949 | if (! result) | |
1950 | fatal ("virtual memory exhausted"); | |
1951 | strcpy (result, s); | |
1952 | return result; | |
1953 | } | |
4291d9c8 RS |
1954 | \f |
1955 | /* Return the logarithm of X, base 2, considering X unsigned, | |
37366632 RK |
1956 | if X is a power of 2. Otherwise, returns -1. |
1957 | ||
1958 | This should be used via the `exact_log2' macro. */ | |
4291d9c8 RS |
1959 | |
1960 | int | |
37366632 RK |
1961 | exact_log2_wide (x) |
1962 | register unsigned HOST_WIDE_INT x; | |
4291d9c8 RS |
1963 | { |
1964 | register int log = 0; | |
1965 | /* Test for 0 or a power of 2. */ | |
1966 | if (x == 0 || x != (x & -x)) | |
1967 | return -1; | |
1968 | while ((x >>= 1) != 0) | |
1969 | log++; | |
1970 | return log; | |
1971 | } | |
1972 | ||
1973 | /* Given X, an unsigned number, return the largest int Y such that 2**Y <= X. | |
37366632 RK |
1974 | If X is 0, return -1. |
1975 | ||
1976 | This should be used via the floor_log2 macro. */ | |
4291d9c8 RS |
1977 | |
1978 | int | |
37366632 RK |
1979 | floor_log2_wide (x) |
1980 | register unsigned HOST_WIDE_INT x; | |
4291d9c8 RS |
1981 | { |
1982 | register int log = -1; | |
1983 | while (x != 0) | |
1984 | log++, | |
1985 | x >>= 1; | |
1986 | return log; | |
1987 | } | |
1988 | ||
3bbfa296 | 1989 | static int float_handler_set; |
4291d9c8 RS |
1990 | int float_handled; |
1991 | jmp_buf float_handler; | |
1992 | ||
3bbfa296 RK |
1993 | /* Signals actually come here. */ |
1994 | ||
1995 | static void | |
1996 | float_signal (signo) | |
1997 | /* If this is missing, some compilers complain. */ | |
1998 | int signo; | |
1999 | { | |
2000 | if (float_handled == 0) | |
2001 | abort (); | |
2002 | #if defined (USG) || defined (hpux) | |
2003 | signal (SIGFPE, float_signal); /* re-enable the signal catcher */ | |
2004 | #endif | |
2005 | float_handled = 0; | |
2006 | signal (SIGFPE, float_signal); | |
2007 | longjmp (float_handler, 1); | |
2008 | } | |
2009 | ||
4291d9c8 RS |
2010 | /* Specify where to longjmp to when a floating arithmetic error happens. |
2011 | If HANDLER is 0, it means don't handle the errors any more. */ | |
2012 | ||
2013 | void | |
2014 | set_float_handler (handler) | |
2015 | jmp_buf handler; | |
2016 | { | |
2017 | float_handled = (handler != 0); | |
2018 | if (handler) | |
4c9a05bc | 2019 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); |
3bbfa296 RK |
2020 | |
2021 | if (float_handled && ! float_handler_set) | |
2022 | { | |
2023 | signal (SIGFPE, float_signal); | |
2024 | float_handler_set = 1; | |
2025 | } | |
4291d9c8 RS |
2026 | } |
2027 | ||
bff4b641 RS |
2028 | /* Specify, in HANDLER, where to longjmp to when a floating arithmetic |
2029 | error happens, pushing the previous specification into OLD_HANDLER. | |
2030 | Return an indication of whether there was a previous handler in effect. */ | |
2031 | ||
2032 | int | |
2033 | push_float_handler (handler, old_handler) | |
dc2b15dc | 2034 | jmp_buf handler, old_handler; |
bff4b641 RS |
2035 | { |
2036 | int was_handled = float_handled; | |
2037 | ||
2038 | float_handled = 1; | |
2039 | if (was_handled) | |
4c9a05bc RK |
2040 | bcopy ((char *) float_handler, (char *) old_handler, |
2041 | sizeof (float_handler)); | |
2042 | ||
2043 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); | |
bff4b641 RS |
2044 | return was_handled; |
2045 | } | |
2046 | ||
2047 | /* Restore the previous specification of whether and where to longjmp to | |
2048 | when a floating arithmetic error happens. */ | |
2049 | ||
2050 | void | |
2051 | pop_float_handler (handled, handler) | |
2052 | int handled; | |
2053 | jmp_buf handler; | |
2054 | { | |
2055 | float_handled = handled; | |
2056 | if (handled) | |
4c9a05bc | 2057 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); |
bff4b641 RS |
2058 | } |
2059 | ||
4291d9c8 RS |
2060 | /* Handler for SIGPIPE. */ |
2061 | ||
2062 | static void | |
2063 | pipe_closed (signo) | |
2064 | /* If this is missing, some compilers complain. */ | |
2065 | int signo; | |
2066 | { | |
2067 | fatal ("output pipe has been closed"); | |
2068 | } | |
2069 | ||
2070 | /* Strip off a legitimate source ending from the input string NAME of | |
c62bdc79 RK |
2071 | length LEN. Rather than having to know the names used by all of |
2072 | our front ends, we strip off an ending of a period followed by one, | |
2073 | two, or three characters. */ | |
4291d9c8 RS |
2074 | |
2075 | void | |
2076 | strip_off_ending (name, len) | |
2077 | char *name; | |
2078 | int len; | |
2079 | { | |
c62bdc79 RK |
2080 | if (len > 2 && name[len - 2] == '.') |
2081 | name[len - 2] = '\0'; | |
2082 | else if (len > 3 && name[len - 3] == '.') | |
2083 | name[len - 3] = '\0'; | |
2084 | else if (len > 4 && name[len - 4] == '.') | |
2085 | name[len - 4] = '\0'; | |
4291d9c8 RS |
2086 | } |
2087 | ||
7dce5088 | 2088 | /* Output a quoted string. */ |
0f41302f | 2089 | |
7dce5088 PE |
2090 | void |
2091 | output_quoted_string (asm_file, string) | |
2092 | FILE *asm_file; | |
2093 | char *string; | |
2094 | { | |
e9a25f70 JL |
2095 | #ifdef OUTPUT_QUOTED_STRING |
2096 | OUTPUT_QUOTED_STRING (asm_file, string); | |
2097 | #else | |
7dce5088 PE |
2098 | char c; |
2099 | ||
2100 | putc ('\"', asm_file); | |
2101 | while ((c = *string++) != 0) | |
2102 | { | |
2103 | if (c == '\"' || c == '\\') | |
2104 | putc ('\\', asm_file); | |
2105 | putc (c, asm_file); | |
2106 | } | |
2107 | putc ('\"', asm_file); | |
e9a25f70 | 2108 | #endif |
7dce5088 PE |
2109 | } |
2110 | ||
4291d9c8 RS |
2111 | /* Output a file name in the form wanted by System V. */ |
2112 | ||
2113 | void | |
2114 | output_file_directive (asm_file, input_name) | |
2115 | FILE *asm_file; | |
2116 | char *input_name; | |
2117 | { | |
2118 | int len = strlen (input_name); | |
2119 | char *na = input_name + len; | |
2120 | ||
2121 | /* NA gets INPUT_NAME sans directory names. */ | |
2122 | while (na > input_name) | |
2123 | { | |
2124 | if (na[-1] == '/') | |
2125 | break; | |
2126 | na--; | |
2127 | } | |
2128 | ||
2129 | #ifdef ASM_OUTPUT_MAIN_SOURCE_FILENAME | |
2130 | ASM_OUTPUT_MAIN_SOURCE_FILENAME (asm_file, na); | |
2131 | #else | |
2132 | #ifdef ASM_OUTPUT_SOURCE_FILENAME | |
2133 | ASM_OUTPUT_SOURCE_FILENAME (asm_file, na); | |
2134 | #else | |
7dce5088 PE |
2135 | fprintf (asm_file, "\t.file\t"); |
2136 | output_quoted_string (asm_file, na); | |
2137 | fputc ('\n', asm_file); | |
4291d9c8 RS |
2138 | #endif |
2139 | #endif | |
2140 | } | |
2141 | \f | |
0f41302f MS |
2142 | /* Routine to build language identifier for object file. */ |
2143 | ||
d0d4af87 MS |
2144 | static void |
2145 | output_lang_identify (asm_out_file) | |
2146 | FILE *asm_out_file; | |
2147 | { | |
2148 | int len = strlen (lang_identify ()) + sizeof ("__gnu_compiled_") + 1; | |
2149 | char *s = (char *) alloca (len); | |
2150 | sprintf (s, "__gnu_compiled_%s", lang_identify ()); | |
2151 | ASM_OUTPUT_LABEL (asm_out_file, s); | |
2152 | } | |
2153 | ||
dfe1a916 | 2154 | /* Routine to open a dump file. */ |
032713aa NC |
2155 | static void |
2156 | open_dump_file (suffix, function_name) | |
2157 | char *suffix; | |
2158 | char *function_name; | |
2159 | { | |
2160 | char *dumpname; | |
0f41302f | 2161 | |
032713aa NC |
2162 | TIMEVAR |
2163 | (dump_time, | |
2164 | { | |
2165 | dumpname = (char *) xmalloc (strlen (dump_base_name) + strlen (suffix) + 1); | |
2166 | ||
2167 | if (rtl_dump_file != NULL) | |
2168 | fclose (rtl_dump_file); | |
2169 | ||
2170 | strcpy (dumpname, dump_base_name); | |
2171 | strcat (dumpname, suffix); | |
2172 | ||
2173 | rtl_dump_file = fopen (dumpname, "a"); | |
2174 | ||
2175 | if (rtl_dump_file == NULL) | |
2176 | pfatal_with_name (dumpname); | |
2177 | ||
2178 | free (dumpname); | |
2179 | ||
2180 | if (function_name) | |
2181 | fprintf (rtl_dump_file, "\n;; Function %s\n\n", function_name); | |
2182 | }); | |
2183 | ||
2184 | return; | |
2185 | } | |
2186 | ||
2187 | /* Routine to close a dump file. */ | |
2188 | static void | |
2189 | close_dump_file (func, insns) | |
2190 | void (*func)(FILE *, rtx); | |
2191 | rtx insns; | |
2192 | { | |
2193 | TIMEVAR | |
2194 | (dump_time, | |
2195 | { | |
2196 | if (func) | |
2197 | func (rtl_dump_file, insns); | |
2198 | ||
2199 | fflush (rtl_dump_file); | |
2200 | fclose (rtl_dump_file); | |
2201 | ||
2202 | rtl_dump_file = NULL; | |
2203 | }); | |
2204 | ||
2205 | return; | |
2206 | } | |
2207 | ||
2208 | /* Routine to dump rtl into a file. */ | |
2209 | static void | |
2210 | dump_rtl (suffix, decl, func, insns) | |
dfe1a916 | 2211 | char *suffix; |
032713aa NC |
2212 | tree decl; |
2213 | void (*func)(FILE *, rtx); | |
2214 | rtx insns; | |
dfe1a916 | 2215 | { |
032713aa NC |
2216 | open_dump_file (suffix, decl_printable_name (decl, 2)); |
2217 | close_dump_file (func, insns); | |
2218 | } | |
2219 | ||
2220 | /* Routine to empty a dump file. */ | |
2221 | static void | |
2222 | clean_dump_file (suffix) | |
2223 | char * suffix; | |
2224 | { | |
2225 | char * dumpname; | |
dfe1a916 | 2226 | |
032713aa NC |
2227 | dumpname = (char *) xmalloc (strlen (dump_base_name) + strlen (suffix) + 1); |
2228 | ||
2229 | strcpy (dumpname, dump_base_name); | |
dfe1a916 | 2230 | strcat (dumpname, suffix); |
032713aa NC |
2231 | |
2232 | rtl_dump_file = fopen (dumpname, "w"); | |
2233 | ||
2234 | if (rtl_dump_file == NULL) | |
2235 | pfatal_with_name (dumpname); | |
2236 | ||
2237 | free (dumpname); | |
2238 | ||
2239 | fclose (rtl_dump_file); | |
2240 | rtl_dump_file = NULL; | |
2241 | ||
2242 | return; | |
dfe1a916 DE |
2243 | } |
2244 | ||
032713aa | 2245 | |
4291d9c8 RS |
2246 | /* Compile an entire file of output from cpp, named NAME. |
2247 | Write a file of assembly output and various debugging dumps. */ | |
2248 | ||
2249 | static void | |
2250 | compile_file (name) | |
2251 | char *name; | |
2252 | { | |
2253 | tree globals; | |
2254 | int start_time; | |
4291d9c8 RS |
2255 | |
2256 | int name_specified = name != 0; | |
2257 | ||
2258 | if (dump_base_name == 0) | |
2259 | dump_base_name = name ? name : "gccdump"; | |
4291d9c8 RS |
2260 | |
2261 | parse_time = 0; | |
2262 | varconst_time = 0; | |
2263 | integration_time = 0; | |
2264 | jump_time = 0; | |
2265 | cse_time = 0; | |
2266 | loop_time = 0; | |
2267 | cse2_time = 0; | |
0d332add | 2268 | branch_prob_time = 0; |
4291d9c8 RS |
2269 | flow_time = 0; |
2270 | combine_time = 0; | |
8c660648 | 2271 | regmove_time = 0; |
4291d9c8 RS |
2272 | sched_time = 0; |
2273 | local_alloc_time = 0; | |
2274 | global_alloc_time = 0; | |
2275 | sched2_time = 0; | |
2276 | dbr_sched_time = 0; | |
2277 | shorten_branch_time = 0; | |
2278 | stack_reg_time = 0; | |
2279 | final_time = 0; | |
2280 | symout_time = 0; | |
2281 | dump_time = 0; | |
2282 | ||
e3d1fd32 | 2283 | #if !USE_CPPLIB |
4291d9c8 RS |
2284 | /* Open input file. */ |
2285 | ||
2286 | if (name == 0 || !strcmp (name, "-")) | |
2287 | { | |
2288 | finput = stdin; | |
2289 | name = "stdin"; | |
2290 | } | |
2291 | else | |
2292 | finput = fopen (name, "r"); | |
2293 | if (finput == 0) | |
2294 | pfatal_with_name (name); | |
2295 | ||
282ea52a | 2296 | #ifdef IO_BUFFER_SIZE |
d7cedf4b | 2297 | setvbuf (finput, (char *) xmalloc (IO_BUFFER_SIZE), _IOFBF, IO_BUFFER_SIZE); |
282ea52a | 2298 | #endif |
e3d1fd32 | 2299 | #endif /* !USE_CPPLIB */ |
282ea52a | 2300 | |
4291d9c8 RS |
2301 | /* Initialize data in various passes. */ |
2302 | ||
2303 | init_obstacks (); | |
2304 | init_tree_codes (); | |
e3d1fd32 PB |
2305 | #if USE_CPPLIB |
2306 | init_parse (name); | |
2307 | #else | |
4291d9c8 | 2308 | init_lex (); |
e3d1fd32 | 2309 | #endif |
4291d9c8 RS |
2310 | init_rtl (); |
2311 | init_emit_once (debug_info_level == DINFO_LEVEL_NORMAL | |
0d332add DE |
2312 | || debug_info_level == DINFO_LEVEL_VERBOSE |
2313 | || flag_test_coverage); | |
7f21d440 | 2314 | init_regs (); |
4291d9c8 RS |
2315 | init_decl_processing (); |
2316 | init_optabs (); | |
2317 | init_stmt (); | |
2318 | init_expmed (); | |
4fa52007 | 2319 | init_expr_once (); |
4291d9c8 RS |
2320 | init_loop (); |
2321 | init_reload (); | |
6e73e666 | 2322 | init_alias_once (); |
4291d9c8 RS |
2323 | |
2324 | if (flag_caller_saves) | |
2325 | init_caller_save (); | |
2326 | ||
f246a305 RS |
2327 | /* If auxiliary info generation is desired, open the output file. |
2328 | This goes in the same directory as the source file--unlike | |
2329 | all the other output files. */ | |
4291d9c8 RS |
2330 | if (flag_gen_aux_info) |
2331 | { | |
4291d9c8 RS |
2332 | aux_info_file = fopen (aux_info_file_name, "w"); |
2333 | if (aux_info_file == 0) | |
2334 | pfatal_with_name (aux_info_file_name); | |
2335 | } | |
2336 | ||
032713aa | 2337 | /* Clear the dump files file. */ |
4291d9c8 | 2338 | if (rtl_dump) |
032713aa | 2339 | clean_dump_file (".rtl"); |
4291d9c8 | 2340 | if (jump_opt_dump) |
032713aa | 2341 | clean_dump_file (".jump"); |
e9a25f70 | 2342 | if (addressof_dump) |
032713aa | 2343 | clean_dump_file (".addressof"); |
4291d9c8 | 2344 | if (cse_dump) |
032713aa | 2345 | clean_dump_file (".cse"); |
4291d9c8 | 2346 | if (loop_dump) |
032713aa | 2347 | clean_dump_file (".loop"); |
4291d9c8 | 2348 | if (cse2_dump) |
032713aa | 2349 | clean_dump_file (".cse2"); |
0d332add | 2350 | if (branch_prob_dump) |
032713aa | 2351 | clean_dump_file (".bp"); |
4291d9c8 | 2352 | if (flow_dump) |
032713aa | 2353 | clean_dump_file (".flow"); |
4291d9c8 | 2354 | if (combine_dump) |
032713aa | 2355 | clean_dump_file (".combine"); |
8c660648 | 2356 | if (regmove_dump) |
032713aa | 2357 | clean_dump_file (".regmove"); |
4291d9c8 | 2358 | if (sched_dump) |
032713aa | 2359 | clean_dump_file (".sched"); |
4291d9c8 | 2360 | if (local_reg_dump) |
032713aa | 2361 | clean_dump_file (".lreg"); |
4291d9c8 | 2362 | if (global_reg_dump) |
032713aa | 2363 | clean_dump_file (".greg"); |
4291d9c8 | 2364 | if (sched2_dump) |
032713aa | 2365 | clean_dump_file (".sched2"); |
4291d9c8 | 2366 | if (jump2_opt_dump) |
032713aa | 2367 | clean_dump_file (".jump2"); |
4291d9c8 | 2368 | if (dbr_sched_dump) |
032713aa | 2369 | clean_dump_file (".dbr"); |
4291d9c8 | 2370 | #ifdef STACK_REGS |
4291d9c8 | 2371 | if (stack_reg_dump) |
032713aa NC |
2372 | clean_dump_file (".stack"); |
2373 | #endif | |
2374 | #ifdef MACHINE_DEPENDENT_REORG | |
2375 | if (mach_dep_reorg_dump) | |
2376 | clean_dump_file (".mach"); | |
4291d9c8 RS |
2377 | #endif |
2378 | ||
2379 | /* Open assembler code output file. */ | |
2380 | ||
2381 | if (! name_specified && asm_file_name == 0) | |
2382 | asm_out_file = stdout; | |
2383 | else | |
2384 | { | |
4291d9c8 | 2385 | int len = strlen (dump_base_name); |
dfe1a916 | 2386 | register char *dumpname = (char *) xmalloc (len + 6); |
4291d9c8 RS |
2387 | strcpy (dumpname, dump_base_name); |
2388 | strip_off_ending (dumpname, len); | |
2389 | strcat (dumpname, ".s"); | |
2390 | if (asm_file_name == 0) | |
2391 | { | |
2392 | asm_file_name = (char *) xmalloc (strlen (dumpname) + 1); | |
2393 | strcpy (asm_file_name, dumpname); | |
2394 | } | |
2395 | if (!strcmp (asm_file_name, "-")) | |
2396 | asm_out_file = stdout; | |
2397 | else | |
2398 | asm_out_file = fopen (asm_file_name, "w"); | |
2399 | if (asm_out_file == 0) | |
2400 | pfatal_with_name (asm_file_name); | |
2401 | } | |
2402 | ||
f246a305 | 2403 | #ifdef IO_BUFFER_SIZE |
d7cedf4b RS |
2404 | setvbuf (asm_out_file, (char *) xmalloc (IO_BUFFER_SIZE), |
2405 | _IOFBF, IO_BUFFER_SIZE); | |
f246a305 RS |
2406 | #endif |
2407 | ||
4291d9c8 RS |
2408 | input_filename = name; |
2409 | ||
18736654 RK |
2410 | /* Put an entry on the input file stack for the main input file. */ |
2411 | input_file_stack | |
2412 | = (struct file_stack *) xmalloc (sizeof (struct file_stack)); | |
2413 | input_file_stack->next = 0; | |
2414 | input_file_stack->name = input_filename; | |
2415 | ||
56bf1fd9 JL |
2416 | /* Gross. Gross. lang_init is (I think) the first callback into |
2417 | the language front end, and is thus the first opportunity to | |
2418 | have the selected language override the default value for any | |
2419 | -f option. | |
2420 | ||
2421 | So the default value for flag_exceptions is 2 (uninitialized). | |
2422 | If we encounter -fno-exceptions or -fexceptions, then flag_exceptions | |
2423 | will be set to zero or one respectively. | |
2424 | ||
2425 | flag_exceptions can also be set by lang_init to something other | |
2426 | than the default "uninitialized" value of 2. | |
2427 | ||
2428 | After lang_init, if the value is still 2, then we default to | |
2429 | -fno-exceptions (value will be reset to zero). | |
2430 | ||
2431 | When our EH mechanism is low enough overhead that we can enable | |
2432 | it by default for languages other than C++, then all this braindamage | |
2433 | will go away. */ | |
2434 | ||
4291d9c8 RS |
2435 | /* Perform language-specific initialization. |
2436 | This may set main_input_filename. */ | |
2437 | lang_init (); | |
2438 | ||
56bf1fd9 JL |
2439 | if (flag_exceptions == 2) |
2440 | flag_exceptions = 0; | |
2441 | ||
4291d9c8 RS |
2442 | /* If the input doesn't start with a #line, use the input name |
2443 | as the official input file name. */ | |
2444 | if (main_input_filename == 0) | |
2445 | main_input_filename = name; | |
2446 | ||
b93a436e | 2447 | ASM_FILE_START (asm_out_file); |
3d5cdd42 DE |
2448 | |
2449 | #ifdef ASM_COMMENT_START | |
b93a436e JL |
2450 | if (flag_verbose_asm) |
2451 | { | |
2452 | /* Print the list of options in effect. */ | |
2453 | print_version (asm_out_file, ASM_COMMENT_START); | |
2454 | print_switch_values (asm_out_file, 0, MAX_LINE, | |
3d5cdd42 | 2455 | ASM_COMMENT_START, " ", "\n"); |
b93a436e JL |
2456 | /* Add a blank line here so it appears in assembler output but not |
2457 | screen output. */ | |
2458 | fprintf (asm_out_file, "\n"); | |
ca695ac9 | 2459 | } |
b93a436e | 2460 | #endif |
4291d9c8 | 2461 | |
b93a436e | 2462 | /* Output something to inform GDB that this compilation was by GCC. */ |
4291d9c8 | 2463 | #ifndef ASM_IDENTIFY_GCC |
b93a436e | 2464 | fprintf (asm_out_file, "gcc2_compiled.:\n"); |
4291d9c8 | 2465 | #else |
b93a436e | 2466 | ASM_IDENTIFY_GCC (asm_out_file); |
4291d9c8 | 2467 | #endif |
d0d4af87 | 2468 | |
0f41302f | 2469 | /* Output something to identify which front-end produced this file. */ |
d0d4af87 MS |
2470 | #ifdef ASM_IDENTIFY_LANGUAGE |
2471 | ASM_IDENTIFY_LANGUAGE (asm_out_file); | |
2472 | #endif | |
2473 | ||
cf440348 JL |
2474 | #ifndef ASM_OUTPUT_SECTION_NAME |
2475 | if (flag_function_sections) | |
2476 | { | |
2477 | warning ("-ffunction-sections not supported for this target."); | |
2478 | flag_function_sections = 0; | |
2479 | } | |
2480 | #endif | |
2481 | ||
2482 | if (flag_function_sections | |
2483 | && (profile_flag || profile_block_flag)) | |
2484 | { | |
2485 | warning ("-ffunction-sections disabled; it makes profiling impossible."); | |
2486 | flag_function_sections = 0; | |
2487 | } | |
2488 | ||
2489 | if (flag_function_sections && write_symbols != NO_DEBUG) | |
2490 | warning ("-ffunction-sections may affect debugging on some targets."); | |
2491 | ||
b93a436e JL |
2492 | /* ??? Note: There used to be a conditional here |
2493 | to call assemble_zeros without fail if DBX_DEBUGGING_INFO is defined. | |
2494 | This was to guarantee separation between gcc_compiled. and | |
2495 | the first function, for the sake of dbx on Suns. | |
2496 | However, having the extra zero here confused the Emacs | |
2497 | code for unexec, and might confuse other programs too. | |
2498 | Therefore, I took out that change. | |
2499 | In future versions we should find another way to solve | |
2500 | that dbx problem. -- rms, 23 May 93. */ | |
ca695ac9 | 2501 | |
b93a436e JL |
2502 | /* Don't let the first function fall at the same address |
2503 | as gcc_compiled., if profiling. */ | |
2504 | if (profile_flag || profile_block_flag) | |
2505 | assemble_zeros (UNITS_PER_WORD); | |
4291d9c8 RS |
2506 | |
2507 | /* If dbx symbol table desired, initialize writing it | |
2508 | and output the predefined types. */ | |
f246a305 RS |
2509 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2510 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
2511 | TIMEVAR (symout_time, dbxout_init (asm_out_file, main_input_filename, |
2512 | getdecls ())); | |
2513 | #endif | |
2514 | #ifdef SDB_DEBUGGING_INFO | |
2515 | if (write_symbols == SDB_DEBUG) | |
2516 | TIMEVAR (symout_time, sdbout_init (asm_out_file, main_input_filename, | |
2517 | getdecls ())); | |
2518 | #endif | |
2519 | #ifdef DWARF_DEBUGGING_INFO | |
2520 | if (write_symbols == DWARF_DEBUG) | |
2521 | TIMEVAR (symout_time, dwarfout_init (asm_out_file, main_input_filename)); | |
2522 | #endif | |
0021b564 JM |
2523 | #ifdef DWARF2_UNWIND_INFO |
2524 | if (dwarf2out_do_frame ()) | |
2525 | dwarf2out_frame_init (); | |
2526 | #endif | |
9a666dda JM |
2527 | #ifdef DWARF2_DEBUGGING_INFO |
2528 | if (write_symbols == DWARF2_DEBUG) | |
2529 | TIMEVAR (symout_time, dwarf2out_init (asm_out_file, main_input_filename)); | |
2530 | #endif | |
4291d9c8 RS |
2531 | |
2532 | /* Initialize yet another pass. */ | |
2533 | ||
b93a436e | 2534 | init_final (main_input_filename); |
0d332add | 2535 | init_branch_prob (dump_base_name); |
4291d9c8 RS |
2536 | |
2537 | start_time = get_run_time (); | |
2538 | ||
2539 | /* Call the parser, which parses the entire file | |
2540 | (calling rest_of_compilation for each function). */ | |
2541 | ||
2542 | if (yyparse () != 0) | |
453dfc78 JW |
2543 | { |
2544 | if (errorcount == 0) | |
2545 | fprintf (stderr, "Errors detected in input file (your bison.simple is out of date)"); | |
2546 | ||
2547 | /* In case there were missing closebraces, | |
2548 | get us back to the global binding level. */ | |
2549 | while (! global_bindings_p ()) | |
2550 | poplevel (0, 0, 0); | |
2551 | } | |
4291d9c8 | 2552 | |
0d332add DE |
2553 | output_func_start_profiler (); |
2554 | ||
4291d9c8 RS |
2555 | /* Compilation is now finished except for writing |
2556 | what's left of the symbol table output. */ | |
2557 | ||
2558 | parse_time += get_run_time () - start_time; | |
2559 | ||
2560 | parse_time -= integration_time; | |
2561 | parse_time -= varconst_time; | |
2562 | ||
2563 | globals = getdecls (); | |
2564 | ||
2565 | /* Really define vars that have had only a tentative definition. | |
2566 | Really output inline functions that must actually be callable | |
2567 | and have not been output so far. */ | |
2568 | ||
2569 | { | |
2570 | int len = list_length (globals); | |
2571 | tree *vec = (tree *) alloca (sizeof (tree) * len); | |
2572 | int i; | |
2573 | tree decl; | |
2b6c54d6 | 2574 | int reconsider = 1; |
4291d9c8 RS |
2575 | |
2576 | /* Process the decls in reverse order--earliest first. | |
2577 | Put them into VEC from back to front, then take out from front. */ | |
2578 | ||
2579 | for (i = 0, decl = globals; i < len; i++, decl = TREE_CHAIN (decl)) | |
2580 | vec[len - i - 1] = decl; | |
2581 | ||
2582 | for (i = 0; i < len; i++) | |
2583 | { | |
2584 | decl = vec[i]; | |
07af9d16 JM |
2585 | |
2586 | /* We're not deferring this any longer. */ | |
2587 | DECL_DEFER_OUTPUT (decl) = 0; | |
2588 | ||
488b1f4f RS |
2589 | if (TREE_CODE (decl) == VAR_DECL && DECL_SIZE (decl) == 0 |
2590 | && incomplete_decl_finalize_hook != 0) | |
2b599527 | 2591 | (*incomplete_decl_finalize_hook) (decl); |
2b6c54d6 | 2592 | } |
2b599527 | 2593 | |
2b6c54d6 JM |
2594 | /* Now emit any global variables or functions that we have been putting |
2595 | off. We need to loop in case one of the things emitted here | |
2596 | references another one which comes earlier in the list. */ | |
2597 | while (reconsider) | |
2598 | { | |
2599 | reconsider = 0; | |
2600 | for (i = 0; i < len; i++) | |
4291d9c8 | 2601 | { |
2b6c54d6 JM |
2602 | decl = vec[i]; |
2603 | ||
2604 | if (TREE_ASM_WRITTEN (decl) || DECL_EXTERNAL (decl)) | |
2605 | continue; | |
2606 | ||
6b2bd61e PB |
2607 | /* Don't write out static consts, unless we still need them. |
2608 | ||
fbe912dd BK |
2609 | We also keep static consts if not optimizing (for debugging), |
2610 | unless the user specified -fno-keep-static-consts. | |
6b2bd61e PB |
2611 | ??? They might be better written into the debug information. |
2612 | This is possible when using DWARF. | |
2613 | ||
2614 | A language processor that wants static constants to be always | |
2615 | written out (even if it is not used) is responsible for | |
2616 | calling rest_of_decl_compilation itself. E.g. the C front-end | |
2617 | calls rest_of_decl_compilation from finish_decl. | |
2618 | One motivation for this is that is conventional in some | |
2619 | environments to write things like: | |
2620 | static const char rcsid[] = "... version string ..."; | |
2621 | intending to force the string to be in the executable. | |
2622 | ||
2623 | A language processor that would prefer to have unneeded | |
2624 | static constants "optimized away" would just defer writing | |
2625 | them out until here. E.g. C++ does this, because static | |
2626 | constants are often defined in header files. | |
2627 | ||
2628 | ??? A tempting alternative (for both C and C++) would be | |
2629 | to force a constant to be written if and only if it is | |
0f41302f | 2630 | defined in a main file, as opposed to an include file. */ |
6b2bd61e | 2631 | |
2b6c54d6 JM |
2632 | if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) |
2633 | && (! TREE_READONLY (decl) | |
2634 | || TREE_PUBLIC (decl) | |
fbe912dd | 2635 | || (!optimize && flag_keep_static_consts) |
2b6c54d6 JM |
2636 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) |
2637 | { | |
2638 | reconsider = 1; | |
2639 | rest_of_decl_compilation (decl, NULL_PTR, 1, 1); | |
2640 | } | |
2641 | ||
2642 | if (TREE_CODE (decl) == FUNCTION_DECL | |
2643 | && DECL_INITIAL (decl) != 0 | |
2644 | && DECL_SAVED_INSNS (decl) != 0 | |
2645 | && (flag_keep_inline_functions | |
2f8844a8 | 2646 | || TREE_PUBLIC (decl) |
2b6c54d6 JM |
2647 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) |
2648 | { | |
2649 | reconsider = 1; | |
2650 | temporary_allocation (); | |
2651 | output_inline_function (decl); | |
2652 | permanent_allocation (1); | |
2653 | } | |
4291d9c8 | 2654 | } |
2b6c54d6 | 2655 | } |
4291d9c8 | 2656 | |
3d195391 MS |
2657 | /* Now that all possible functions have been output, we can dump |
2658 | the exception table. */ | |
2659 | ||
0021b564 | 2660 | output_exception_table (); |
3d195391 | 2661 | |
2b6c54d6 JM |
2662 | for (i = 0; i < len; i++) |
2663 | { | |
2664 | decl = vec[i]; | |
2665 | ||
2666 | if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) | |
2667 | && ! TREE_ASM_WRITTEN (decl)) | |
2668 | /* Cancel the RTL for this decl so that, if debugging info | |
2669 | output for global variables is still to come, | |
2670 | this one will be omitted. */ | |
2671 | DECL_RTL (decl) = NULL; | |
4291d9c8 | 2672 | |
ac266247 RS |
2673 | /* Warn about any function |
2674 | declared static but not defined. | |
2675 | We don't warn about variables, | |
2676 | because many programs have static variables | |
2677 | that exist only to get some text into the object file. */ | |
8c461ea1 JM |
2678 | if (TREE_CODE (decl) == FUNCTION_DECL |
2679 | && (warn_unused | |
2680 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))) | |
4291d9c8 | 2681 | && DECL_INITIAL (decl) == 0 |
216d5cdd | 2682 | && DECL_EXTERNAL (decl) |
d1b01681 | 2683 | && ! DECL_ARTIFICIAL (decl) |
4291d9c8 | 2684 | && ! TREE_PUBLIC (decl)) |
7d429c41 | 2685 | { |
8c461ea1 | 2686 | pedwarn_with_decl (decl, |
7d429c41 RS |
2687 | "`%s' declared `static' but never defined"); |
2688 | /* This symbol is effectively an "extern" declaration now. */ | |
2689 | TREE_PUBLIC (decl) = 1; | |
2690 | assemble_external (decl); | |
7d429c41 | 2691 | } |
8c461ea1 | 2692 | |
4291d9c8 | 2693 | /* Warn about static fns or vars defined but not used, |
7062b881 PB |
2694 | but not about inline functions or static consts |
2695 | since defining those in header files is normal practice. */ | |
4291d9c8 | 2696 | if (warn_unused |
7062b881 PB |
2697 | && ((TREE_CODE (decl) == FUNCTION_DECL && ! DECL_INLINE (decl)) |
2698 | || (TREE_CODE (decl) == VAR_DECL && ! TREE_READONLY (decl))) | |
0c20aabf | 2699 | && ! DECL_IN_SYSTEM_HEADER (decl) |
216d5cdd | 2700 | && ! DECL_EXTERNAL (decl) |
4291d9c8 RS |
2701 | && ! TREE_PUBLIC (decl) |
2702 | && ! TREE_USED (decl) | |
f843649d | 2703 | && (TREE_CODE (decl) == FUNCTION_DECL || ! DECL_REGISTER (decl)) |
4291d9c8 RS |
2704 | /* The TREE_USED bit for file-scope decls |
2705 | is kept in the identifier, to handle multiple | |
2706 | external decls in different scopes. */ | |
2707 | && ! TREE_USED (DECL_NAME (decl))) | |
2708 | warning_with_decl (decl, "`%s' defined but not used"); | |
2709 | ||
2710 | #ifdef SDB_DEBUGGING_INFO | |
2711 | /* The COFF linker can move initialized global vars to the end. | |
2712 | And that can screw up the symbol ordering. | |
2713 | By putting the symbols in that order to begin with, | |
2714 | we avoid a problem. mcsun!unido!fauern!tumuc!pes@uunet.uu.net. */ | |
2715 | if (write_symbols == SDB_DEBUG && TREE_CODE (decl) == VAR_DECL | |
2716 | && TREE_PUBLIC (decl) && DECL_INITIAL (decl) | |
7efad3f7 | 2717 | && ! DECL_EXTERNAL (decl) |
4291d9c8 RS |
2718 | && DECL_RTL (decl) != 0) |
2719 | TIMEVAR (symout_time, sdbout_symbol (decl, 0)); | |
2720 | ||
2721 | /* Output COFF information for non-global | |
0f41302f | 2722 | file-scope initialized variables. */ |
4291d9c8 RS |
2723 | if (write_symbols == SDB_DEBUG |
2724 | && TREE_CODE (decl) == VAR_DECL | |
2725 | && DECL_INITIAL (decl) | |
7efad3f7 | 2726 | && ! DECL_EXTERNAL (decl) |
4291d9c8 RS |
2727 | && DECL_RTL (decl) != 0 |
2728 | && GET_CODE (DECL_RTL (decl)) == MEM) | |
2729 | TIMEVAR (symout_time, sdbout_toplevel_data (decl)); | |
2730 | #endif /* SDB_DEBUGGING_INFO */ | |
2731 | #ifdef DWARF_DEBUGGING_INFO | |
6dc42e49 | 2732 | /* Output DWARF information for file-scope tentative data object |
4291d9c8 RS |
2733 | declarations, file-scope (extern) function declarations (which |
2734 | had no corresponding body) and file-scope tagged type declarations | |
2735 | and definitions which have not yet been forced out. */ | |
2736 | ||
2737 | if (write_symbols == DWARF_DEBUG | |
2738 | && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl))) | |
2739 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 1)); | |
9a666dda JM |
2740 | #endif |
2741 | #ifdef DWARF2_DEBUGGING_INFO | |
2742 | /* Output DWARF2 information for file-scope tentative data object | |
2743 | declarations, file-scope (extern) function declarations (which | |
2744 | had no corresponding body) and file-scope tagged type declarations | |
2745 | and definitions which have not yet been forced out. */ | |
2746 | ||
2747 | if (write_symbols == DWARF2_DEBUG | |
2748 | && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl))) | |
88dad228 | 2749 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
4291d9c8 RS |
2750 | #endif |
2751 | } | |
2752 | } | |
2753 | ||
4b8af8d9 JM |
2754 | /* Write out any pending weak symbol declarations. */ |
2755 | ||
2756 | weak_finish (); | |
2757 | ||
4291d9c8 | 2758 | /* Do dbx symbols */ |
f246a305 RS |
2759 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2760 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
2761 | TIMEVAR (symout_time, |
2762 | { | |
2763 | dbxout_finish (asm_out_file, main_input_filename); | |
2764 | }); | |
2765 | #endif | |
2766 | ||
2767 | #ifdef DWARF_DEBUGGING_INFO | |
2768 | if (write_symbols == DWARF_DEBUG) | |
2769 | TIMEVAR (symout_time, | |
2770 | { | |
2771 | dwarfout_finish (); | |
2772 | }); | |
2773 | #endif | |
2774 | ||
0021b564 JM |
2775 | #ifdef DWARF2_UNWIND_INFO |
2776 | if (dwarf2out_do_frame ()) | |
2777 | dwarf2out_frame_finish (); | |
2778 | #endif | |
2779 | ||
9a666dda JM |
2780 | #ifdef DWARF2_DEBUGGING_INFO |
2781 | if (write_symbols == DWARF2_DEBUG) | |
2782 | TIMEVAR (symout_time, | |
2783 | { | |
2784 | dwarf2out_finish (); | |
2785 | }); | |
2786 | #endif | |
2787 | ||
4291d9c8 RS |
2788 | /* Output some stuff at end of file if nec. */ |
2789 | ||
b93a436e | 2790 | end_final (dump_base_name); |
032713aa NC |
2791 | |
2792 | if (branch_prob_dump) | |
2793 | open_dump_file (".bp", NULL); | |
2794 | ||
2795 | TIMEVAR (dump_time, end_branch_prob (rtl_dump_file)); | |
2796 | ||
2797 | if (branch_prob_dump) | |
2798 | close_dump_file (NULL, NULL_RTX); | |
2799 | ||
4291d9c8 | 2800 | #ifdef ASM_FILE_END |
b93a436e | 2801 | ASM_FILE_END (asm_out_file); |
4291d9c8 RS |
2802 | #endif |
2803 | ||
4291d9c8 RS |
2804 | /* Language-specific end of compilation actions. */ |
2805 | ||
2806 | lang_finish (); | |
2807 | ||
2808 | /* Close the dump files. */ | |
2809 | ||
2810 | if (flag_gen_aux_info) | |
2811 | { | |
2812 | fclose (aux_info_file); | |
2813 | if (errorcount) | |
2814 | unlink (aux_info_file_name); | |
2815 | } | |
2816 | ||
4291d9c8 RS |
2817 | if (combine_dump) |
2818 | { | |
032713aa NC |
2819 | open_dump_file (".combine", NULL); |
2820 | TIMEVAR (dump_time, dump_combine_total_stats (rtl_dump_file)); | |
2821 | close_dump_file (NULL, NULL_RTX); | |
4291d9c8 RS |
2822 | } |
2823 | ||
4291d9c8 RS |
2824 | /* Close non-debugging input and output files. Take special care to note |
2825 | whether fclose returns an error, since the pages might still be on the | |
2826 | buffer chain while the file is open. */ | |
2827 | ||
e3d1fd32 PB |
2828 | #if USE_CPPLIB |
2829 | finish_parse (); | |
2830 | #else | |
4291d9c8 | 2831 | fclose (finput); |
e3d1fd32 | 2832 | #endif |
4291d9c8 RS |
2833 | if (ferror (asm_out_file) != 0 || fclose (asm_out_file) != 0) |
2834 | fatal_io_error (asm_file_name); | |
2835 | ||
2836 | /* Print the times. */ | |
2837 | ||
2838 | if (! quiet_flag) | |
2839 | { | |
2840 | fprintf (stderr,"\n"); | |
2841 | print_time ("parse", parse_time); | |
ca695ac9 | 2842 | |
b93a436e JL |
2843 | print_time ("integration", integration_time); |
2844 | print_time ("jump", jump_time); | |
2845 | print_time ("cse", cse_time); | |
2846 | print_time ("loop", loop_time); | |
2847 | print_time ("cse2", cse2_time); | |
2848 | print_time ("branch-prob", branch_prob_time); | |
2849 | print_time ("flow", flow_time); | |
2850 | print_time ("combine", combine_time); | |
2851 | print_time ("regmove", regmove_time); | |
2852 | print_time ("sched", sched_time); | |
2853 | print_time ("local-alloc", local_alloc_time); | |
2854 | print_time ("global-alloc", global_alloc_time); | |
2855 | print_time ("sched2", sched2_time); | |
2856 | print_time ("dbranch", dbr_sched_time); | |
2857 | print_time ("shorten-branch", shorten_branch_time); | |
2858 | print_time ("stack-reg", stack_reg_time); | |
2859 | print_time ("final", final_time); | |
2860 | print_time ("varconst", varconst_time); | |
2861 | print_time ("symout", symout_time); | |
2862 | print_time ("dump", dump_time); | |
4291d9c8 RS |
2863 | } |
2864 | } | |
2865 | \f | |
2866 | /* This is called from various places for FUNCTION_DECL, VAR_DECL, | |
2867 | and TYPE_DECL nodes. | |
2868 | ||
2869 | This does nothing for local (non-static) variables. | |
2870 | Otherwise, it sets up the RTL and outputs any assembler code | |
2871 | (label definition, storage allocation and initialization). | |
2872 | ||
2873 | DECL is the declaration. If ASMSPEC is nonzero, it specifies | |
2874 | the assembler symbol name to be used. TOP_LEVEL is nonzero | |
2875 | if this declaration is not within a function. */ | |
2876 | ||
2877 | void | |
2878 | rest_of_decl_compilation (decl, asmspec, top_level, at_end) | |
2879 | tree decl; | |
2880 | char *asmspec; | |
2881 | int top_level; | |
2882 | int at_end; | |
2883 | { | |
2884 | /* Declarations of variables, and of functions defined elsewhere. */ | |
2885 | ||
928eb380 RS |
2886 | /* The most obvious approach, to put an #ifndef around where |
2887 | this macro is used, doesn't work since it's inside a macro call. */ | |
2888 | #ifndef ASM_FINISH_DECLARE_OBJECT | |
2889 | #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP, END) | |
2890 | #endif | |
2891 | ||
4291d9c8 RS |
2892 | /* Forward declarations for nested functions are not "external", |
2893 | but we need to treat them as if they were. */ | |
216d5cdd | 2894 | if (TREE_STATIC (decl) || DECL_EXTERNAL (decl) |
4291d9c8 RS |
2895 | || TREE_CODE (decl) == FUNCTION_DECL) |
2896 | TIMEVAR (varconst_time, | |
2897 | { | |
2898 | make_decl_rtl (decl, asmspec, top_level); | |
9a9a9643 RS |
2899 | /* Initialized extern variable exists to be replaced |
2900 | with its value, or represents something that will be | |
2901 | output in another file. */ | |
6dbf678a | 2902 | if (! (TREE_CODE (decl) == VAR_DECL |
9a9a9643 RS |
2903 | && DECL_EXTERNAL (decl) && TREE_READONLY (decl) |
2904 | && DECL_INITIAL (decl) != 0 | |
5b272d50 | 2905 | && DECL_INITIAL (decl) != error_mark_node)) |
6dbf678a RS |
2906 | /* Don't output anything |
2907 | when a tentative file-scope definition is seen. | |
2908 | But at end of compilation, do output code for them. */ | |
2909 | if (! (! at_end && top_level | |
2910 | && (DECL_INITIAL (decl) == 0 | |
9a9a9643 | 2911 | || DECL_INITIAL (decl) == error_mark_node))) |
8380e2f2 | 2912 | assemble_variable (decl, top_level, at_end, 0); |
b93a436e | 2913 | if (decl == last_assemble_variable_decl) |
5e10b3cc RS |
2914 | { |
2915 | ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl, | |
2916 | top_level, at_end); | |
2917 | } | |
4291d9c8 | 2918 | }); |
216d5cdd | 2919 | else if (DECL_REGISTER (decl) && asmspec != 0) |
4291d9c8 RS |
2920 | { |
2921 | if (decode_reg_name (asmspec) >= 0) | |
2922 | { | |
2923 | DECL_RTL (decl) = 0; | |
2924 | make_decl_rtl (decl, asmspec, top_level); | |
2925 | } | |
2926 | else | |
2927 | error ("invalid register name `%s' for register variable", asmspec); | |
2928 | } | |
f246a305 RS |
2929 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2930 | else if ((write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
2931 | && TREE_CODE (decl) == TYPE_DECL) | |
4291d9c8 RS |
2932 | TIMEVAR (symout_time, dbxout_symbol (decl, 0)); |
2933 | #endif | |
2934 | #ifdef SDB_DEBUGGING_INFO | |
2935 | else if (write_symbols == SDB_DEBUG && top_level | |
2936 | && TREE_CODE (decl) == TYPE_DECL) | |
2937 | TIMEVAR (symout_time, sdbout_symbol (decl, 0)); | |
2938 | #endif | |
2939 | } | |
2940 | ||
2941 | /* Called after finishing a record, union or enumeral type. */ | |
2942 | ||
2943 | void | |
2944 | rest_of_type_compilation (type, toplev) | |
2945 | tree type; | |
2946 | int toplev; | |
2947 | { | |
f246a305 RS |
2948 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2949 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
2950 | TIMEVAR (symout_time, dbxout_symbol (TYPE_STUB_DECL (type), !toplev)); |
2951 | #endif | |
2952 | #ifdef SDB_DEBUGGING_INFO | |
2953 | if (write_symbols == SDB_DEBUG) | |
2954 | TIMEVAR (symout_time, sdbout_symbol (TYPE_STUB_DECL (type), !toplev)); | |
2955 | #endif | |
2956 | } | |
2957 | ||
2958 | /* This is called from finish_function (within yyparse) | |
2959 | after each top-level definition is parsed. | |
2960 | It is supposed to compile that function or variable | |
2961 | and output the assembler code for it. | |
2962 | After we return, the tree storage is freed. */ | |
2963 | ||
2964 | void | |
2965 | rest_of_compilation (decl) | |
2966 | tree decl; | |
2967 | { | |
2968 | register rtx insns; | |
2969 | int start_time = get_run_time (); | |
2970 | int tem; | |
2971 | /* Nonzero if we have saved the original DECL_INITIAL of the function, | |
2972 | to be restored after we finish compiling the function | |
2973 | (for use when compiling inline calls to this function). */ | |
2974 | tree saved_block_tree = 0; | |
8a958768 RS |
2975 | /* Likewise, for DECL_ARGUMENTS. */ |
2976 | tree saved_arguments = 0; | |
ab40ad2b | 2977 | int failure = 0; |
4291d9c8 RS |
2978 | |
2979 | /* If we are reconsidering an inline function | |
2980 | at the end of compilation, skip the stuff for making it inline. */ | |
2981 | ||
2982 | if (DECL_SAVED_INSNS (decl) == 0) | |
2983 | { | |
956d6950 | 2984 | int inlinable = 0; |
4291d9c8 RS |
2985 | char *lose; |
2986 | ||
2987 | /* If requested, consider whether to make this function inline. */ | |
9deaf1b1 | 2988 | if (DECL_INLINE (decl) || flag_inline_functions) |
4291d9c8 RS |
2989 | TIMEVAR (integration_time, |
2990 | { | |
2991 | lose = function_cannot_inline_p (decl); | |
caa0eccd | 2992 | if (lose || ! optimize) |
4291d9c8 | 2993 | { |
9deaf1b1 | 2994 | if (warn_inline && DECL_INLINE (decl)) |
4291d9c8 | 2995 | warning_with_decl (decl, lose); |
9548c538 | 2996 | DECL_ABSTRACT_ORIGIN (decl) = 0; |
46dbb914 RS |
2997 | /* Don't really compile an extern inline function. |
2998 | If we can't make it inline, pretend | |
2999 | it was only declared. */ | |
3000 | if (DECL_EXTERNAL (decl)) | |
27937f46 RS |
3001 | { |
3002 | DECL_INITIAL (decl) = 0; | |
3003 | goto exit_rest_of_compilation; | |
3004 | } | |
4291d9c8 RS |
3005 | } |
3006 | else | |
9deaf1b1 RK |
3007 | /* ??? Note that this has the effect of making it look |
3008 | like "inline" was specified for a function if we choose | |
3009 | to inline it. This isn't quite right, but it's | |
3010 | probably not worth the trouble to fix. */ | |
956d6950 | 3011 | inlinable = DECL_INLINE (decl) = 1; |
4291d9c8 RS |
3012 | }); |
3013 | ||
3014 | insns = get_insns (); | |
3015 | ||
3016 | /* Dump the rtl code if we are dumping rtl. */ | |
3017 | ||
3018 | if (rtl_dump) | |
032713aa NC |
3019 | { |
3020 | open_dump_file (".rtl", decl_printable_name (decl, 2)); | |
3021 | ||
3022 | if (DECL_SAVED_INSNS (decl)) | |
3023 | fprintf (rtl_dump_file, ";; (integrable)\n\n"); | |
3024 | ||
3025 | close_dump_file (print_rtl, insns); | |
3026 | } | |
4291d9c8 | 3027 | |
c0da11c4 JM |
3028 | /* If we can, defer compiling inlines until EOF. |
3029 | save_for_inline_copying can be extremely expensive. */ | |
956d6950 | 3030 | if (inlinable && ! decl_function_context (decl)) |
c0da11c4 JM |
3031 | DECL_DEFER_OUTPUT (decl) = 1; |
3032 | ||
4291d9c8 RS |
3033 | /* If function is inline, and we don't yet know whether to |
3034 | compile it by itself, defer decision till end of compilation. | |
3035 | finish_compilation will call rest_of_compilation again | |
16411ea6 | 3036 | for those functions that need to be output. Also defer those |
ec6c615d RK |
3037 | functions that we are supposed to defer. We cannot defer |
3038 | functions containing nested functions since the nested function | |
3039 | data is in our non-saved obstack. */ | |
3040 | ||
e9a25f70 JL |
3041 | /* If this is a nested inline, remove ADDRESSOF now so we can |
3042 | finish compiling ourselves. Otherwise, wait until EOF. | |
3043 | We have to do this because the purge_addressof transformation | |
3044 | changes the DECL_RTL for many variables, which confuses integrate. */ | |
956d6950 | 3045 | if (inlinable) |
e9a25f70 JL |
3046 | { |
3047 | if (decl_function_context (decl)) | |
3048 | purge_addressof (insns); | |
3049 | else | |
3050 | DECL_DEFER_OUTPUT (decl) = 1; | |
3051 | } | |
3052 | ||
ec6c615d RK |
3053 | if (! current_function_contains_functions |
3054 | && (DECL_DEFER_OUTPUT (decl) | |
9deaf1b1 | 3055 | || (DECL_INLINE (decl) |
ec6c615d RK |
3056 | && ((! TREE_PUBLIC (decl) && ! TREE_ADDRESSABLE (decl) |
3057 | && ! flag_keep_inline_functions) | |
3058 | || DECL_EXTERNAL (decl))))) | |
4291d9c8 | 3059 | { |
951af26e JM |
3060 | DECL_DEFER_OUTPUT (decl) = 1; |
3061 | ||
a701efba MM |
3062 | /* If -Wreturn-type, we have to do a bit of compilation. |
3063 | However, if we just fall through we will call | |
3064 | save_for_inline_copying() which results in excessive | |
3065 | memory use. Instead, we just want to call | |
3066 | jump_optimize() to figure out whether or not we can fall | |
3067 | off the end of the function; we do the minimum amount of | |
3068 | work necessary to make that safe. And, we set optimize | |
3069 | to zero to keep jump_optimize from working too hard. */ | |
3070 | if (warn_return_type) | |
937522b5 | 3071 | { |
a701efba MM |
3072 | int saved_optimize = optimize; |
3073 | optimize = 0; | |
3074 | find_exception_handler_labels (); | |
3075 | jump_optimize (get_insns(), 0, 0, 0); | |
3076 | optimize = saved_optimize; | |
3077 | } | |
3078 | ||
951af26e | 3079 | #ifdef DWARF_DEBUGGING_INFO |
a701efba MM |
3080 | /* Generate the DWARF info for the "abstract" instance |
3081 | of a function which we may later generate inlined and/or | |
3082 | out-of-line instances of. */ | |
3083 | if (write_symbols == DWARF_DEBUG) | |
3084 | { | |
3085 | set_decl_abstract_flags (decl, 1); | |
3086 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
3087 | set_decl_abstract_flags (decl, 0); | |
3088 | } | |
9a666dda JM |
3089 | #endif |
3090 | #ifdef DWARF2_DEBUGGING_INFO | |
a701efba MM |
3091 | /* Generate the DWARF2 info for the "abstract" instance |
3092 | of a function which we may later generate inlined and/or | |
3093 | out-of-line instances of. */ | |
3094 | if (write_symbols == DWARF2_DEBUG) | |
3095 | { | |
3096 | set_decl_abstract_flags (decl, 1); | |
3097 | TIMEVAR (symout_time, dwarf2out_decl (decl)); | |
3098 | set_decl_abstract_flags (decl, 0); | |
937522b5 | 3099 | } |
a701efba MM |
3100 | #endif |
3101 | TIMEVAR (integration_time, save_for_inline_nocopy (decl)); | |
3102 | RTX_INTEGRATED_P (DECL_SAVED_INSNS (decl)) = inlinable; | |
3103 | goto exit_rest_of_compilation; | |
4291d9c8 RS |
3104 | } |
3105 | ||
8a958768 | 3106 | /* If we have to compile the function now, save its rtl and subdecls |
4291d9c8 | 3107 | so that its compilation will not affect what others get. */ |
956d6950 | 3108 | if (inlinable || DECL_DEFER_OUTPUT (decl)) |
4291d9c8 | 3109 | { |
937522b5 RS |
3110 | #ifdef DWARF_DEBUGGING_INFO |
3111 | /* Generate the DWARF info for the "abstract" instance of | |
3112 | a function which we will generate an out-of-line instance | |
3113 | of almost immediately (and which we may also later generate | |
3114 | various inlined instances of). */ | |
3115 | if (write_symbols == DWARF_DEBUG) | |
3116 | { | |
3117 | set_decl_abstract_flags (decl, 1); | |
3118 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
3119 | set_decl_abstract_flags (decl, 0); | |
3120 | } | |
9a666dda JM |
3121 | #endif |
3122 | #ifdef DWARF2_DEBUGGING_INFO | |
3123 | /* Generate the DWARF2 info for the "abstract" instance of | |
3124 | a function which we will generate an out-of-line instance | |
3125 | of almost immediately (and which we may also later generate | |
3126 | various inlined instances of). */ | |
3127 | if (write_symbols == DWARF2_DEBUG) | |
3128 | { | |
3129 | set_decl_abstract_flags (decl, 1); | |
88dad228 | 3130 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
9a666dda JM |
3131 | set_decl_abstract_flags (decl, 0); |
3132 | } | |
937522b5 | 3133 | #endif |
4291d9c8 | 3134 | saved_block_tree = DECL_INITIAL (decl); |
8a958768 | 3135 | saved_arguments = DECL_ARGUMENTS (decl); |
4291d9c8 | 3136 | TIMEVAR (integration_time, save_for_inline_copying (decl)); |
956d6950 | 3137 | RTX_INTEGRATED_P (DECL_SAVED_INSNS (decl)) = inlinable; |
4291d9c8 | 3138 | } |
4291d9c8 | 3139 | |
b8471b65 RK |
3140 | /* If specified extern inline but we aren't inlining it, we are |
3141 | done. */ | |
9deaf1b1 | 3142 | if (DECL_INLINE (decl) && DECL_EXTERNAL (decl)) |
b8471b65 RK |
3143 | goto exit_rest_of_compilation; |
3144 | } | |
07af9d16 | 3145 | |
951af26e JM |
3146 | if (! DECL_DEFER_OUTPUT (decl)) |
3147 | TREE_ASM_WRITTEN (decl) = 1; | |
4291d9c8 RS |
3148 | |
3149 | /* Now that integrate will no longer see our rtl, we need not distinguish | |
3150 | between the return value of this function and the return value of called | |
3151 | functions. */ | |
3152 | rtx_equal_function_value_matters = 0; | |
3153 | ||
32235b30 RS |
3154 | /* Don't return yet if -Wreturn-type; we need to do jump_optimize. */ |
3155 | if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type) | |
4291d9c8 RS |
3156 | { |
3157 | goto exit_rest_of_compilation; | |
3158 | } | |
3159 | ||
154bba13 TT |
3160 | /* Emit code to get eh context, if needed. */ |
3161 | emit_eh_context (); | |
3162 | ||
4291d9c8 RS |
3163 | #ifdef FINALIZE_PIC |
3164 | /* If we are doing position-independent code generation, now | |
3165 | is the time to output special prologues and epilogues. | |
3166 | We do not want to do this earlier, because it just clutters | |
3167 | up inline functions with meaningless insns. */ | |
3168 | if (flag_pic) | |
3169 | FINALIZE_PIC; | |
3170 | #endif | |
3171 | ||
89418a92 BK |
3172 | /* From now on, allocate rtl in current_obstack, not in saveable_obstack. |
3173 | Note that that may have been done above, in save_for_inline_copying. | |
3174 | The call to resume_temporary_allocation near the end of this function | |
3175 | goes back to the usual state of affairs. This must be done after | |
3176 | we've built up any unwinders for exception handling, and done | |
3177 | the FINALIZE_PIC work, if necessary. */ | |
3178 | ||
3179 | rtl_in_current_obstack (); | |
3d195391 | 3180 | |
4291d9c8 RS |
3181 | insns = get_insns (); |
3182 | ||
3183 | /* Copy any shared structure that should not be shared. */ | |
3184 | ||
3185 | unshare_all_rtl (insns); | |
3186 | ||
c9ec4f99 DM |
3187 | #ifdef SETJMP_VIA_SAVE_AREA |
3188 | /* This must be performed before virutal register instantiation. */ | |
3189 | if (current_function_calls_alloca) | |
3190 | optimize_save_area_alloca (insns); | |
3191 | #endif | |
3192 | ||
4291d9c8 RS |
3193 | /* Instantiate all virtual registers. */ |
3194 | ||
3195 | instantiate_virtual_regs (current_function_decl, get_insns ()); | |
3196 | ||
3197 | /* See if we have allocated stack slots that are not directly addressable. | |
3198 | If so, scan all the insns and create explicit address computation | |
3199 | for all references to such slots. */ | |
3200 | /* fixup_stack_slots (); */ | |
3201 | ||
3d195391 MS |
3202 | /* Find all the EH handlers. */ |
3203 | find_exception_handler_labels (); | |
3204 | ||
cc4e79d8 JL |
3205 | /* Always do one jump optimization pass to ensure that JUMP_LABEL fields |
3206 | are initialized and to compute whether control can drop off the end | |
3207 | of the function. */ | |
3208 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
3209 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1)); | |
4291d9c8 | 3210 | |
32235b30 | 3211 | /* Now is when we stop if -fsyntax-only and -Wreturn-type. */ |
951af26e | 3212 | if (rtl_dump_and_exit || flag_syntax_only || DECL_DEFER_OUTPUT (decl)) |
32235b30 RS |
3213 | goto exit_rest_of_compilation; |
3214 | ||
4291d9c8 RS |
3215 | /* Dump rtl code after jump, if we are doing that. */ |
3216 | ||
032713aa NC |
3217 | if (jump_opt_dump) |
3218 | dump_rtl (".jump", decl, print_rtl, insns); | |
4291d9c8 RS |
3219 | |
3220 | /* Perform common subexpression elimination. | |
3221 | Nonzero value from `cse_main' means that jumps were simplified | |
3222 | and some code may now be unreachable, so do | |
3223 | jump optimization again. */ | |
3224 | ||
4291d9c8 RS |
3225 | if (optimize > 0) |
3226 | { | |
032713aa NC |
3227 | if (cse_dump) |
3228 | open_dump_file (".cse", decl_printable_name (decl, 2)); | |
3229 | ||
4291d9c8 RS |
3230 | TIMEVAR (cse_time, reg_scan (insns, max_reg_num (), 1)); |
3231 | ||
3232 | if (flag_thread_jumps) | |
3233 | /* Hacks by tiemann & kenner. */ | |
6f606d63 | 3234 | TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 1)); |
4291d9c8 RS |
3235 | |
3236 | TIMEVAR (cse_time, tem = cse_main (insns, max_reg_num (), | |
032713aa | 3237 | 0, rtl_dump_file)); |
4291d9c8 RS |
3238 | TIMEVAR (cse_time, delete_dead_from_cse (insns, max_reg_num ())); |
3239 | ||
534bfae4 | 3240 | if (tem || optimize > 1) |
4291d9c8 | 3241 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 0)); |
4291d9c8 | 3242 | |
032713aa NC |
3243 | /* Dump rtl code after cse, if we are doing that. */ |
3244 | ||
3245 | if (cse_dump) | |
3246 | close_dump_file (print_rtl, insns); | |
3247 | } | |
4291d9c8 | 3248 | |
e9a25f70 JL |
3249 | purge_addressof (insns); |
3250 | reg_scan (insns, max_reg_num (), 1); | |
3251 | ||
3252 | if (addressof_dump) | |
032713aa NC |
3253 | dump_rtl (".addressof", decl, print_rtl, insns); |
3254 | ||
4291d9c8 RS |
3255 | /* Move constant computations out of loops. */ |
3256 | ||
3257 | if (optimize > 0) | |
3258 | { | |
032713aa NC |
3259 | if (loop_dump) |
3260 | open_dump_file (".loop", decl_printable_name (decl, 2)); | |
3261 | ||
3262 | TIMEVAR | |
3263 | (loop_time, | |
3264 | { | |
3265 | if (flag_rerun_loop_opt) | |
4291d9c8 | 3266 | { |
032713aa NC |
3267 | /* We only want to perform unrolling once. */ |
3268 | ||
3269 | loop_optimize (insns, rtl_dump_file, 0); | |
3270 | ||
3271 | /* The regscan pass may not be necessary, but let's | |
3272 | be safe until we can prove otherwise. */ | |
3273 | reg_scan (insns, max_reg_num (), 1); | |
3274 | } | |
3275 | loop_optimize (insns, rtl_dump_file, flag_unroll_loops); | |
3276 | }); | |
3277 | ||
3278 | /* Dump rtl code after loop opt, if we are doing that. */ | |
3279 | ||
3280 | if (loop_dump) | |
3281 | close_dump_file (print_rtl, insns); | |
4291d9c8 RS |
3282 | } |
3283 | ||
032713aa | 3284 | if (optimize > 0) |
c2f006ec | 3285 | { |
032713aa NC |
3286 | if (cse2_dump) |
3287 | open_dump_file (".cse2", decl_printable_name (decl, 2)); | |
3288 | ||
3289 | if (flag_rerun_cse_after_loop) | |
3290 | { | |
3291 | /* Running another jump optimization pass before the second | |
3292 | cse pass sometimes simplifies the RTL enough to allow | |
3293 | the second CSE pass to do a better job. Jump_optimize can change | |
3294 | max_reg_num so we must rerun reg_scan afterwards. | |
3295 | ??? Rework to not call reg_scan so often. */ | |
3296 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
3297 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1)); | |
3298 | ||
3299 | TIMEVAR (cse2_time, reg_scan (insns, max_reg_num (), 0)); | |
3300 | TIMEVAR (cse2_time, tem = cse_main (insns, max_reg_num (), | |
3301 | 1, rtl_dump_file)); | |
3302 | if (tem) | |
3303 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 0)); | |
3304 | } | |
0d332add | 3305 | |
032713aa NC |
3306 | if (flag_thread_jumps) |
3307 | { | |
3308 | /* This pass of jump threading straightens out code | |
3309 | that was kinked by loop optimization. */ | |
3310 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
3311 | TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 0)); | |
3312 | } | |
3313 | ||
3314 | /* Dump rtl code after cse, if we are doing that. */ | |
3315 | ||
3316 | if (cse2_dump) | |
3317 | close_dump_file (print_rtl, insns); | |
3318 | } | |
3319 | ||
0d332add | 3320 | if (profile_arc_flag || flag_test_coverage || flag_branch_probabilities) |
032713aa NC |
3321 | { |
3322 | if (branch_prob_dump) | |
3323 | open_dump_file (".bp", decl_printable_name (decl, 2)); | |
3324 | ||
3325 | TIMEVAR | |
3326 | (branch_prob_time, | |
3327 | { | |
3328 | branch_prob (insns, rtl_dump_file); | |
3329 | }); | |
3330 | ||
3331 | if (branch_prob_dump) | |
3332 | close_dump_file (print_rtl, insns); | |
3333 | } | |
3334 | ||
4291d9c8 RS |
3335 | /* We are no longer anticipating cse in this function, at least. */ |
3336 | ||
3337 | cse_not_expected = 1; | |
3338 | ||
3339 | /* Now we choose between stupid (pcc-like) register allocation | |
3340 | (if we got the -noreg switch and not -opt) | |
3341 | and smart register allocation. */ | |
3342 | ||
3343 | if (optimize > 0) /* Stupid allocation probably won't work */ | |
3344 | obey_regdecls = 0; /* if optimizations being done. */ | |
3345 | ||
3346 | regclass_init (); | |
3347 | ||
3348 | /* Print function header into flow dump now | |
3349 | because doing the flow analysis makes some of the dump. */ | |
3350 | ||
3351 | if (flow_dump) | |
032713aa NC |
3352 | open_dump_file (".flow", decl_printable_name (decl, 2)); |
3353 | ||
4291d9c8 RS |
3354 | if (obey_regdecls) |
3355 | { | |
3356 | TIMEVAR (flow_time, | |
3357 | { | |
3358 | regclass (insns, max_reg_num ()); | |
3359 | stupid_life_analysis (insns, max_reg_num (), | |
032713aa | 3360 | rtl_dump_file); |
4291d9c8 RS |
3361 | }); |
3362 | } | |
3363 | else | |
3364 | { | |
3365 | /* Do control and data flow analysis, | |
3366 | and write some of the results to dump file. */ | |
3367 | ||
3368 | TIMEVAR (flow_time, flow_analysis (insns, max_reg_num (), | |
032713aa | 3369 | rtl_dump_file)); |
4291d9c8 RS |
3370 | if (warn_uninitialized) |
3371 | { | |
3372 | uninitialized_vars_warning (DECL_INITIAL (decl)); | |
3373 | setjmp_args_warning (); | |
3374 | } | |
3375 | } | |
3376 | ||
3377 | /* Dump rtl after flow analysis. */ | |
3378 | ||
3379 | if (flow_dump) | |
032713aa NC |
3380 | close_dump_file (print_rtl_with_bb, insns); |
3381 | ||
4291d9c8 RS |
3382 | /* If -opt, try combining insns through substitution. */ |
3383 | ||
3384 | if (optimize > 0) | |
032713aa NC |
3385 | { |
3386 | TIMEVAR (combine_time, combine_instructions (insns, max_reg_num ())); | |
3387 | ||
3388 | /* Dump rtl code after insn combination. */ | |
3389 | ||
3390 | if (combine_dump) | |
3391 | dump_rtl (".combine", decl, print_rtl_with_bb, insns); | |
3392 | } | |
8c660648 JL |
3393 | |
3394 | /* Register allocation pre-pass, to reduce number of moves | |
3395 | necessary for two-address machines. */ | |
3396 | if (optimize > 0 && flag_regmove) | |
032713aa NC |
3397 | { |
3398 | if (regmove_dump) | |
3399 | open_dump_file (".regmove", decl_printable_name (decl, 2)); | |
3400 | ||
3401 | TIMEVAR (regmove_time, regmove_optimize (insns, max_reg_num (), | |
3402 | rtl_dump_file)); | |
3403 | ||
3404 | if (regmove_dump) | |
3405 | close_dump_file (print_rtl_with_bb, insns); | |
3406 | } | |
8c660648 | 3407 | |
4291d9c8 RS |
3408 | /* Print function header into sched dump now |
3409 | because doing the sched analysis makes some of the dump. */ | |
3410 | ||
4291d9c8 RS |
3411 | if (optimize > 0 && flag_schedule_insns) |
3412 | { | |
032713aa NC |
3413 | if (sched_dump) |
3414 | open_dump_file (".sched", decl_printable_name (decl, 2)); | |
3415 | ||
4291d9c8 RS |
3416 | /* Do control and data sched analysis, |
3417 | and write some of the results to dump file. */ | |
3418 | ||
032713aa NC |
3419 | TIMEVAR (sched_time, schedule_insns (rtl_dump_file)); |
3420 | ||
3421 | /* Dump rtl after instruction scheduling. */ | |
3422 | ||
3423 | if (sched_dump) | |
3424 | close_dump_file (print_rtl_with_bb, insns); | |
4291d9c8 RS |
3425 | } |
3426 | ||
4291d9c8 RS |
3427 | /* Unless we did stupid register allocation, |
3428 | allocate pseudo-regs that are used only within 1 basic block. */ | |
3429 | ||
3430 | if (!obey_regdecls) | |
3431 | TIMEVAR (local_alloc_time, | |
3432 | { | |
3433 | regclass (insns, max_reg_num ()); | |
3434 | local_alloc (); | |
3435 | }); | |
3436 | ||
3437 | /* Dump rtl code after allocating regs within basic blocks. */ | |
3438 | ||
3439 | if (local_reg_dump) | |
032713aa NC |
3440 | { |
3441 | open_dump_file (".lreg", decl_printable_name (decl, 2)); | |
3442 | ||
3443 | TIMEVAR (dump_time, dump_flow_info (rtl_dump_file)); | |
3444 | TIMEVAR (dump_time, dump_local_alloc (rtl_dump_file)); | |
3445 | ||
3446 | close_dump_file (print_rtl_with_bb, insns); | |
3447 | } | |
4291d9c8 RS |
3448 | |
3449 | if (global_reg_dump) | |
032713aa | 3450 | open_dump_file (".greg", decl_printable_name (decl, 2)); |
4291d9c8 | 3451 | |
bf8b4985 RK |
3452 | /* Save the last label number used so far, so reorg can tell |
3453 | when it's safe to kill spill regs. */ | |
3454 | max_label_num_after_reload = max_label_num (); | |
3455 | ||
4291d9c8 RS |
3456 | /* Unless we did stupid register allocation, |
3457 | allocate remaining pseudo-regs, then do the reload pass | |
3458 | fixing up any insns that are invalid. */ | |
3459 | ||
3460 | TIMEVAR (global_alloc_time, | |
3461 | { | |
3462 | if (!obey_regdecls) | |
032713aa | 3463 | failure = global_alloc (rtl_dump_file); |
4291d9c8 | 3464 | else |
032713aa | 3465 | failure = reload (insns, 0, rtl_dump_file); |
4291d9c8 RS |
3466 | }); |
3467 | ||
3468 | if (global_reg_dump) | |
032713aa NC |
3469 | { |
3470 | TIMEVAR (dump_time, dump_global_regs (rtl_dump_file)); | |
3471 | close_dump_file (print_rtl_with_bb, insns); | |
3472 | } | |
4291d9c8 | 3473 | |
ab40ad2b RS |
3474 | if (failure) |
3475 | goto exit_rest_of_compilation; | |
3476 | ||
4291d9c8 RS |
3477 | reload_completed = 1; |
3478 | ||
c8ed219d RK |
3479 | /* Do a very simple CSE pass over just the hard registers. */ |
3480 | if (optimize > 0) | |
3481 | reload_cse_regs (insns); | |
3482 | ||
bdac5f58 TW |
3483 | /* On some machines, the prologue and epilogue code, or parts thereof, |
3484 | can be represented as RTL. Doing so lets us schedule insns between | |
3485 | it and the rest of the code and also allows delayed branch | |
3486 | scheduling to operate in the epilogue. */ | |
3487 | ||
3488 | thread_prologue_and_epilogue_insns (insns); | |
3489 | ||
4291d9c8 RS |
3490 | if (optimize > 0 && flag_schedule_insns_after_reload) |
3491 | { | |
3492 | if (sched2_dump) | |
032713aa | 3493 | open_dump_file (".sched2", decl_printable_name (decl, 2)); |
4291d9c8 RS |
3494 | |
3495 | /* Do control and data sched analysis again, | |
3496 | and write some more of the results to dump file. */ | |
3497 | ||
032713aa | 3498 | TIMEVAR (sched2_time, schedule_insns (rtl_dump_file)); |
4291d9c8 RS |
3499 | |
3500 | /* Dump rtl after post-reorder instruction scheduling. */ | |
3501 | ||
3502 | if (sched2_dump) | |
032713aa | 3503 | close_dump_file (print_rtl_with_bb, insns); |
4291d9c8 RS |
3504 | } |
3505 | ||
3506 | #ifdef LEAF_REGISTERS | |
3507 | leaf_function = 0; | |
3508 | if (optimize > 0 && only_leaf_regs_used () && leaf_function_p ()) | |
ab40ad2b | 3509 | leaf_function = 1; |
4291d9c8 RS |
3510 | #endif |
3511 | ||
3512 | /* One more attempt to remove jumps to .+1 | |
3513 | left by dead-store-elimination. | |
3514 | Also do cross-jumping this time | |
3515 | and delete no-op move insns. */ | |
3516 | ||
3517 | if (optimize > 0) | |
3518 | { | |
3519 | TIMEVAR (jump_time, jump_optimize (insns, 1, 1, 0)); | |
032713aa NC |
3520 | |
3521 | /* Dump rtl code after jump, if we are doing that. */ | |
4291d9c8 | 3522 | |
032713aa NC |
3523 | if (jump2_opt_dump) |
3524 | dump_rtl (".jump2", decl, print_rtl_with_bb, insns); | |
3525 | } | |
4291d9c8 | 3526 | |
2c65021a RK |
3527 | /* If a machine dependent reorganization is needed, call it. */ |
3528 | #ifdef MACHINE_DEPENDENT_REORG | |
3529 | MACHINE_DEPENDENT_REORG (insns); | |
032713aa NC |
3530 | |
3531 | if (mach_dep_reorg_dump) | |
3532 | dump_rtl (".mach", decl, print_rtl_with_bb, insns); | |
2c65021a RK |
3533 | #endif |
3534 | ||
4291d9c8 | 3535 | /* If a scheduling pass for delayed branches is to be done, |
0f41302f | 3536 | call the scheduling code. */ |
4291d9c8 RS |
3537 | |
3538 | #ifdef DELAY_SLOTS | |
3539 | if (optimize > 0 && flag_delayed_branch) | |
3540 | { | |
3541 | TIMEVAR (dbr_sched_time, dbr_schedule (insns, dbr_sched_dump_file)); | |
032713aa | 3542 | |
4291d9c8 | 3543 | if (dbr_sched_dump) |
032713aa | 3544 | dump_rtl (".dbr", decl, print_rtl_with_bb, insns); |
4291d9c8 RS |
3545 | } |
3546 | #endif | |
3547 | ||
d0c874f6 TG |
3548 | /* Shorten branches. */ |
3549 | TIMEVAR (shorten_branch_time, | |
3550 | { | |
3551 | shorten_branches (get_insns ()); | |
3552 | }); | |
4291d9c8 RS |
3553 | |
3554 | #ifdef STACK_REGS | |
3555 | TIMEVAR (stack_reg_time, reg_to_stack (insns, stack_reg_dump_file)); | |
032713aa | 3556 | |
4291d9c8 | 3557 | if (stack_reg_dump) |
032713aa | 3558 | dump_rtl (".stack", decl, print_rtl_with_bb, insns); |
4291d9c8 RS |
3559 | #endif |
3560 | ||
3561 | /* Now turn the rtl into assembler code. */ | |
3562 | ||
3563 | TIMEVAR (final_time, | |
3564 | { | |
3565 | rtx x; | |
3566 | char *fnname; | |
3567 | ||
3568 | /* Get the function's name, as described by its RTL. | |
3569 | This may be different from the DECL_NAME name used | |
3570 | in the source file. */ | |
3571 | ||
3572 | x = DECL_RTL (decl); | |
3573 | if (GET_CODE (x) != MEM) | |
3574 | abort (); | |
3575 | x = XEXP (x, 0); | |
3576 | if (GET_CODE (x) != SYMBOL_REF) | |
3577 | abort (); | |
3578 | fnname = XSTR (x, 0); | |
3579 | ||
3580 | assemble_start_function (decl, fnname); | |
3581 | final_start_function (insns, asm_out_file, optimize); | |
3582 | final (insns, asm_out_file, optimize, 0); | |
3583 | final_end_function (insns, asm_out_file, optimize); | |
3584 | assemble_end_function (decl, fnname); | |
3585 | fflush (asm_out_file); | |
9ddca353 RK |
3586 | |
3587 | /* Release all memory held by regsets now */ | |
3588 | regset_release_memory (); | |
4291d9c8 RS |
3589 | }); |
3590 | ||
3591 | /* Write DBX symbols if requested */ | |
3592 | ||
3593 | /* Note that for those inline functions where we don't initially | |
3594 | know for certain that we will be generating an out-of-line copy, | |
3595 | the first invocation of this routine (rest_of_compilation) will | |
3596 | skip over this code by doing a `goto exit_rest_of_compilation;'. | |
3597 | Later on, finish_compilation will call rest_of_compilation again | |
3598 | for those inline functions that need to have out-of-line copies | |
3599 | generated. During that call, we *will* be routed past here. */ | |
3600 | ||
3601 | #ifdef DBX_DEBUGGING_INFO | |
3602 | if (write_symbols == DBX_DEBUG) | |
3603 | TIMEVAR (symout_time, dbxout_function (decl)); | |
3604 | #endif | |
3605 | ||
3606 | #ifdef DWARF_DEBUGGING_INFO | |
3607 | if (write_symbols == DWARF_DEBUG) | |
3608 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
3609 | #endif | |
3610 | ||
9a666dda JM |
3611 | #ifdef DWARF2_DEBUGGING_INFO |
3612 | if (write_symbols == DWARF2_DEBUG) | |
88dad228 | 3613 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
9a666dda JM |
3614 | #endif |
3615 | ||
4291d9c8 RS |
3616 | exit_rest_of_compilation: |
3617 | ||
f246a305 RS |
3618 | /* In case the function was not output, |
3619 | don't leave any temporary anonymous types | |
3620 | queued up for sdb output. */ | |
3621 | #ifdef SDB_DEBUGGING_INFO | |
3622 | if (write_symbols == SDB_DEBUG) | |
37366632 | 3623 | sdbout_types (NULL_TREE); |
f246a305 RS |
3624 | #endif |
3625 | ||
8a958768 RS |
3626 | /* Put back the tree of subblocks and list of arguments |
3627 | from before we copied them. | |
4291d9c8 RS |
3628 | Code generation and the output of debugging info may have modified |
3629 | the copy, but the original is unchanged. */ | |
3630 | ||
3631 | if (saved_block_tree != 0) | |
fb19c456 JM |
3632 | { |
3633 | DECL_INITIAL (decl) = saved_block_tree; | |
3634 | DECL_ARGUMENTS (decl) = saved_arguments; | |
3635 | DECL_ABSTRACT_ORIGIN (decl) = NULL_TREE; | |
3636 | } | |
4291d9c8 RS |
3637 | |
3638 | reload_completed = 0; | |
3639 | ||
9fe320d7 RK |
3640 | /* Clear out the insn_length contents now that they are no longer valid. */ |
3641 | init_insn_lengths (); | |
3642 | ||
4291d9c8 RS |
3643 | /* Clear out the real_constant_chain before some of the rtx's |
3644 | it runs through become garbage. */ | |
3645 | ||
3646 | clear_const_double_mem (); | |
3647 | ||
3648 | /* Cancel the effect of rtl_in_current_obstack. */ | |
3649 | ||
3650 | resume_temporary_allocation (); | |
3651 | ||
adcd38c9 RK |
3652 | /* Show no temporary slots allocated. */ |
3653 | ||
3654 | init_temp_slots (); | |
3655 | ||
4291d9c8 RS |
3656 | /* The parsing time is all the time spent in yyparse |
3657 | *except* what is spent in this function. */ | |
3658 | ||
3659 | parse_time -= get_run_time () - start_time; | |
3660 | } | |
3661 | \f | |
3662 | /* Entry point of cc1/c++. Decode command args, then call compile_file. | |
3663 | Exit code is 35 if can't open files, 34 if fatal error, | |
3664 | 33 if had nonfatal errors, else success. */ | |
3665 | ||
3666 | int | |
3667 | main (argc, argv, envp) | |
3668 | int argc; | |
3669 | char **argv; | |
3670 | char **envp; | |
3671 | { | |
3672 | register int i; | |
3673 | char *filename = 0; | |
3674 | int flag_print_mem = 0; | |
3675 | int version_flag = 0; | |
3676 | char *p; | |
3677 | ||
3678 | /* save in case md file wants to emit args as a comment. */ | |
3679 | save_argc = argc; | |
3680 | save_argv = argv; | |
3681 | ||
3682 | p = argv[0] + strlen (argv[0]); | |
128373ac RK |
3683 | while (p != argv[0] && p[-1] != '/' |
3684 | #ifdef DIR_SEPARATOR | |
3685 | && p[-1] != DIR_SEPARATOR | |
3686 | #endif | |
3687 | ) | |
3688 | --p; | |
4291d9c8 RS |
3689 | progname = p; |
3690 | ||
08ce3276 | 3691 | #if defined (RLIMIT_STACK) && defined (HAVE_GETRLIMIT) && defined (HAVE_SETRLIMIT) |
4291d9c8 RS |
3692 | /* Get rid of any avoidable limit on stack size. */ |
3693 | { | |
3694 | struct rlimit rlim; | |
3695 | ||
0f41302f | 3696 | /* Set the stack limit huge so that alloca does not fail. */ |
4291d9c8 RS |
3697 | getrlimit (RLIMIT_STACK, &rlim); |
3698 | rlim.rlim_cur = rlim.rlim_max; | |
3699 | setrlimit (RLIMIT_STACK, &rlim); | |
3700 | } | |
c85f7c16 | 3701 | #endif |
4291d9c8 RS |
3702 | |
3703 | signal (SIGFPE, float_signal); | |
3704 | ||
935d4b07 | 3705 | #ifdef SIGPIPE |
4291d9c8 | 3706 | signal (SIGPIPE, pipe_closed); |
935d4b07 | 3707 | #endif |
4291d9c8 RS |
3708 | |
3709 | decl_printable_name = decl_name; | |
3710 | lang_expand_expr = (struct rtx_def *(*)()) do_abort; | |
3711 | ||
3712 | /* Initialize whether `char' is signed. */ | |
3713 | flag_signed_char = DEFAULT_SIGNED_CHAR; | |
3714 | #ifdef DEFAULT_SHORT_ENUMS | |
3715 | /* Initialize how much space enums occupy, by default. */ | |
3716 | flag_short_enums = DEFAULT_SHORT_ENUMS; | |
3717 | #endif | |
3718 | ||
3719 | /* Scan to see what optimization level has been specified. That will | |
3720 | determine the default value of many flags. */ | |
3721 | for (i = 1; i < argc; i++) | |
3722 | { | |
3723 | if (!strcmp (argv[i], "-O")) | |
3724 | { | |
3725 | optimize = 1; | |
3726 | } | |
3727 | else if (argv[i][0] == '-' && argv[i][1] == 'O') | |
3728 | { | |
c6aded7c | 3729 | /* Handle -Os, -O2, -O3, -O69, ... */ |
4291d9c8 RS |
3730 | char *p = &argv[i][2]; |
3731 | int c; | |
c6aded7c AG |
3732 | |
3733 | if ((p[0] == 's') && (p[1] == 0)) | |
3734 | optimize_size = 1; | |
3735 | else | |
3736 | { | |
3737 | while (c = *p++) | |
3738 | if (! (c >= '0' && c <= '9')) | |
3739 | break; | |
3740 | if (c == 0) | |
3741 | optimize = atoi (&argv[i][2]); | |
3742 | } | |
4291d9c8 RS |
3743 | } |
3744 | } | |
3745 | ||
c6aded7c AG |
3746 | /* Optimizing for size forces optimize to be no less than 2. */ |
3747 | if (optimize_size && (optimize < 2)) | |
3748 | optimize = 2; | |
3749 | ||
4291d9c8 | 3750 | obey_regdecls = (optimize == 0); |
4291d9c8 RS |
3751 | |
3752 | if (optimize >= 1) | |
3753 | { | |
6731a3e3 | 3754 | flag_defer_pop = 1; |
4291d9c8 RS |
3755 | flag_thread_jumps = 1; |
3756 | #ifdef DELAY_SLOTS | |
3757 | flag_delayed_branch = 1; | |
7e89c3a3 RK |
3758 | #endif |
3759 | #ifdef CAN_DEBUG_WITHOUT_FP | |
3760 | flag_omit_frame_pointer = 1; | |
4291d9c8 RS |
3761 | #endif |
3762 | } | |
3763 | ||
3764 | if (optimize >= 2) | |
3765 | { | |
3766 | flag_cse_follow_jumps = 1; | |
8b3686ed | 3767 | flag_cse_skip_blocks = 1; |
4291d9c8 RS |
3768 | flag_expensive_optimizations = 1; |
3769 | flag_strength_reduce = 1; | |
3770 | flag_rerun_cse_after_loop = 1; | |
6d6d0fa0 | 3771 | flag_rerun_loop_opt = 1; |
ac266247 | 3772 | flag_caller_saves = 1; |
4ac8e06e | 3773 | flag_force_mem = 1; |
4291d9c8 RS |
3774 | #ifdef INSN_SCHEDULING |
3775 | flag_schedule_insns = 1; | |
3776 | flag_schedule_insns_after_reload = 1; | |
3777 | #endif | |
8c660648 | 3778 | flag_regmove = 1; |
4291d9c8 RS |
3779 | } |
3780 | ||
7e89c3a3 RK |
3781 | if (optimize >= 3) |
3782 | { | |
3783 | flag_inline_functions = 1; | |
3784 | } | |
3785 | ||
c6aded7c AG |
3786 | /* Disable code bloating optimizations if optimizing for size. */ |
3787 | if (optimize_size) | |
3788 | { | |
3789 | flag_inline_functions = 0; | |
3790 | } | |
3791 | ||
c1da383f DE |
3792 | /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can |
3793 | modify it. */ | |
3794 | target_flags = 0; | |
3795 | set_target_switch (""); | |
3796 | ||
4291d9c8 RS |
3797 | #ifdef OPTIMIZATION_OPTIONS |
3798 | /* Allow default optimizations to be specified on a per-machine basis. */ | |
c6aded7c | 3799 | OPTIMIZATION_OPTIONS (optimize, optimize_size); |
4291d9c8 RS |
3800 | #endif |
3801 | ||
3802 | /* Initialize register usage now so switches may override. */ | |
3803 | init_reg_sets (); | |
3804 | ||
4291d9c8 RS |
3805 | for (i = 1; i < argc; i++) |
3806 | { | |
b99933c7 RS |
3807 | int j; |
3808 | /* If this is a language-specific option, | |
3809 | decode it in a language-specific way. */ | |
3810 | for (j = 0; lang_options[j] != 0; j++) | |
7e6c0864 RK |
3811 | if (!strncmp (argv[i], lang_options[j], |
3812 | strlen (lang_options[j]))) | |
b99933c7 RS |
3813 | break; |
3814 | if (lang_options[j] != 0) | |
3815 | /* If the option is valid for *some* language, | |
3816 | treat it as valid even if this language doesn't understand it. */ | |
3817 | lang_decode_option (argv[i]); | |
3818 | else if (argv[i][0] == '-' && argv[i][1] != 0) | |
4291d9c8 RS |
3819 | { |
3820 | register char *str = argv[i] + 1; | |
3821 | if (str[0] == 'Y') | |
3822 | str++; | |
3823 | ||
3824 | if (str[0] == 'm') | |
3825 | set_target_switch (&str[1]); | |
3826 | else if (!strcmp (str, "dumpbase")) | |
3827 | { | |
3828 | dump_base_name = argv[++i]; | |
3829 | } | |
3830 | else if (str[0] == 'd') | |
3831 | { | |
3832 | register char *p = &str[1]; | |
3833 | while (*p) | |
3834 | switch (*p++) | |
3835 | { | |
3836 | case 'a': | |
0d332add | 3837 | branch_prob_dump = 1; |
4291d9c8 RS |
3838 | combine_dump = 1; |
3839 | dbr_sched_dump = 1; | |
3840 | flow_dump = 1; | |
3841 | global_reg_dump = 1; | |
3842 | jump_opt_dump = 1; | |
e9a25f70 | 3843 | addressof_dump = 1; |
4291d9c8 RS |
3844 | jump2_opt_dump = 1; |
3845 | local_reg_dump = 1; | |
3846 | loop_dump = 1; | |
8c660648 | 3847 | regmove_dump = 1; |
4291d9c8 RS |
3848 | rtl_dump = 1; |
3849 | cse_dump = 1, cse2_dump = 1; | |
3850 | sched_dump = 1; | |
3851 | sched2_dump = 1; | |
032713aa | 3852 | #ifdef STACK_REGS |
4291d9c8 | 3853 | stack_reg_dump = 1; |
032713aa NC |
3854 | #endif |
3855 | #ifdef MACHINE_DEPENDENT_REORG | |
3856 | mach_dep_reorg_dump = 1; | |
3857 | #endif | |
4291d9c8 | 3858 | break; |
0d332add DE |
3859 | case 'b': |
3860 | branch_prob_dump = 1; | |
3861 | break; | |
032713aa | 3862 | #ifdef STACK_REGS |
4291d9c8 RS |
3863 | case 'k': |
3864 | stack_reg_dump = 1; | |
3865 | break; | |
032713aa | 3866 | #endif |
4291d9c8 RS |
3867 | case 'c': |
3868 | combine_dump = 1; | |
3869 | break; | |
3870 | case 'd': | |
3871 | dbr_sched_dump = 1; | |
3872 | break; | |
3873 | case 'f': | |
3874 | flow_dump = 1; | |
3875 | break; | |
3876 | case 'g': | |
3877 | global_reg_dump = 1; | |
3878 | break; | |
3879 | case 'j': | |
3880 | jump_opt_dump = 1; | |
3881 | break; | |
e9a25f70 JL |
3882 | case 'D': |
3883 | addressof_dump = 1; | |
3884 | break; | |
4291d9c8 RS |
3885 | case 'J': |
3886 | jump2_opt_dump = 1; | |
3887 | break; | |
3888 | case 'l': | |
3889 | local_reg_dump = 1; | |
3890 | break; | |
3891 | case 'L': | |
3892 | loop_dump = 1; | |
3893 | break; | |
3894 | case 'm': | |
3895 | flag_print_mem = 1; | |
3896 | break; | |
032713aa NC |
3897 | #ifdef MACHINE_DEPENDENT_REORG |
3898 | case 'M': | |
3899 | mach_dep_reorg_dump = 1; | |
3900 | break; | |
3901 | #endif | |
4291d9c8 RS |
3902 | case 'p': |
3903 | flag_print_asm_name = 1; | |
3904 | break; | |
3905 | case 'r': | |
3906 | rtl_dump = 1; | |
3907 | break; | |
3908 | case 's': | |
3909 | cse_dump = 1; | |
3910 | break; | |
3911 | case 't': | |
3912 | cse2_dump = 1; | |
3913 | break; | |
8c660648 JL |
3914 | case 'N': |
3915 | regmove_dump = 1; | |
3916 | break; | |
4291d9c8 RS |
3917 | case 'S': |
3918 | sched_dump = 1; | |
3919 | break; | |
3920 | case 'R': | |
3921 | sched2_dump = 1; | |
3922 | break; | |
3923 | case 'y': | |
3924 | set_yydebug (1); | |
3925 | break; | |
4291d9c8 RS |
3926 | case 'x': |
3927 | rtl_dump_and_exit = 1; | |
3928 | break; | |
3d5cdd42 DE |
3929 | case 'A': |
3930 | flag_debug_asm = 1; | |
3931 | break; | |
032713aa NC |
3932 | default: |
3933 | warning ("unrecognised gcc debugging option: %c", p[-1]); | |
3934 | break; | |
4291d9c8 RS |
3935 | } |
3936 | } | |
3937 | else if (str[0] == 'f') | |
3938 | { | |
4291d9c8 RS |
3939 | register char *p = &str[1]; |
3940 | int found = 0; | |
3941 | ||
3942 | /* Some kind of -f option. | |
3943 | P's value is the option sans `-f'. | |
3944 | Search for it in the table of options. */ | |
3945 | ||
3946 | for (j = 0; | |
3947 | !found && j < sizeof (f_options) / sizeof (f_options[0]); | |
3948 | j++) | |
3949 | { | |
3950 | if (!strcmp (p, f_options[j].string)) | |
3951 | { | |
3952 | *f_options[j].variable = f_options[j].on_value; | |
3953 | /* A goto here would be cleaner, | |
3954 | but breaks the vax pcc. */ | |
3955 | found = 1; | |
3956 | } | |
3957 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
3958 | && ! strcmp (p+3, f_options[j].string)) | |
3959 | { | |
3960 | *f_options[j].variable = ! f_options[j].on_value; | |
3961 | found = 1; | |
3962 | } | |
3963 | } | |
3964 | ||
3965 | if (found) | |
3966 | ; | |
8c660648 JL |
3967 | #ifdef HAIFA |
3968 | #ifdef INSN_SCHEDULING | |
3969 | else if (!strncmp (p, "sched-verbose-",14)) | |
3970 | fix_sched_param("verbose",&p[14]); | |
3971 | else if (!strncmp (p, "sched-max-",10)) | |
3972 | fix_sched_param("max",&p[10]); | |
3973 | else if (!strncmp (p, "sched-inter-max-b-",18)) | |
3974 | fix_sched_param("interblock-max-blocks",&p[18]); | |
3975 | else if (!strncmp (p, "sched-inter-max-i-",18)) | |
3976 | fix_sched_param("interblock-max-insns",&p[18]); | |
3977 | #endif | |
3978 | #endif /* HAIFA */ | |
4291d9c8 RS |
3979 | else if (!strncmp (p, "fixed-", 6)) |
3980 | fix_register (&p[6], 1, 1); | |
3981 | else if (!strncmp (p, "call-used-", 10)) | |
3982 | fix_register (&p[10], 0, 1); | |
3983 | else if (!strncmp (p, "call-saved-", 11)) | |
3984 | fix_register (&p[11], 0, 0); | |
b99933c7 | 3985 | else |
4291d9c8 RS |
3986 | error ("Invalid option `%s'", argv[i]); |
3987 | } | |
3988 | else if (str[0] == 'O') | |
3989 | { | |
3990 | register char *p = str+1; | |
c6aded7c | 3991 | if (*p == 's') |
4291d9c8 | 3992 | p++; |
c6aded7c AG |
3993 | else |
3994 | while (*p && *p >= '0' && *p <= '9') | |
3995 | p++; | |
4291d9c8 RS |
3996 | if (*p == '\0') |
3997 | ; | |
3998 | else | |
3999 | error ("Invalid option `%s'", argv[i]); | |
4000 | } | |
4001 | else if (!strcmp (str, "pedantic")) | |
4002 | pedantic = 1; | |
4003 | else if (!strcmp (str, "pedantic-errors")) | |
4004 | flag_pedantic_errors = pedantic = 1; | |
4291d9c8 RS |
4005 | else if (!strcmp (str, "quiet")) |
4006 | quiet_flag = 1; | |
4007 | else if (!strcmp (str, "version")) | |
4008 | version_flag = 1; | |
4009 | else if (!strcmp (str, "w")) | |
4010 | inhibit_warnings = 1; | |
4011 | else if (!strcmp (str, "W")) | |
4012 | { | |
4013 | extra_warnings = 1; | |
fa1a4543 RS |
4014 | /* We save the value of warn_uninitialized, since if they put |
4015 | -Wuninitialized on the command line, we need to generate a | |
4016 | warning about not using it without also specifying -O. */ | |
4017 | if (warn_uninitialized != 1) | |
4018 | warn_uninitialized = 2; | |
4291d9c8 RS |
4019 | } |
4020 | else if (str[0] == 'W') | |
4021 | { | |
4291d9c8 RS |
4022 | register char *p = &str[1]; |
4023 | int found = 0; | |
4024 | ||
4025 | /* Some kind of -W option. | |
4026 | P's value is the option sans `-W'. | |
4027 | Search for it in the table of options. */ | |
4028 | ||
4029 | for (j = 0; | |
4030 | !found && j < sizeof (W_options) / sizeof (W_options[0]); | |
4031 | j++) | |
4032 | { | |
4033 | if (!strcmp (p, W_options[j].string)) | |
4034 | { | |
4035 | *W_options[j].variable = W_options[j].on_value; | |
4036 | /* A goto here would be cleaner, | |
4037 | but breaks the vax pcc. */ | |
4038 | found = 1; | |
4039 | } | |
4040 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
4041 | && ! strcmp (p+3, W_options[j].string)) | |
4042 | { | |
4043 | *W_options[j].variable = ! W_options[j].on_value; | |
4044 | found = 1; | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | if (found) | |
4049 | ; | |
4050 | else if (!strncmp (p, "id-clash-", 9)) | |
4051 | { | |
4052 | char *endp = p + 9; | |
4053 | ||
4054 | while (*endp) | |
4055 | { | |
4056 | if (*endp >= '0' && *endp <= '9') | |
4057 | endp++; | |
4058 | else | |
7085b873 RS |
4059 | { |
4060 | error ("Invalid option `%s'", argv[i]); | |
4061 | goto id_clash_lose; | |
4062 | } | |
4291d9c8 RS |
4063 | } |
4064 | warn_id_clash = 1; | |
4065 | id_clash_len = atoi (str + 10); | |
7085b873 | 4066 | id_clash_lose: ; |
4291d9c8 | 4067 | } |
b51e9c62 RK |
4068 | else if (!strncmp (p, "larger-than-", 12)) |
4069 | { | |
4070 | char *endp = p + 12; | |
4071 | ||
4072 | while (*endp) | |
4073 | { | |
4074 | if (*endp >= '0' && *endp <= '9') | |
4075 | endp++; | |
4076 | else | |
4077 | { | |
4078 | error ("Invalid option `%s'", argv[i]); | |
4079 | goto larger_than_lose; | |
4080 | } | |
4081 | } | |
4082 | warn_larger_than = 1; | |
4083 | larger_than_size = atoi (str + 13); | |
4084 | larger_than_lose: ; | |
4085 | } | |
4291d9c8 RS |
4086 | else |
4087 | error ("Invalid option `%s'", argv[i]); | |
4088 | } | |
4089 | else if (!strcmp (str, "p")) | |
ca695ac9 | 4090 | { |
c2d12c8b | 4091 | profile_flag = 1; |
ca695ac9 | 4092 | } |
4291d9c8 RS |
4093 | else if (!strcmp (str, "a")) |
4094 | { | |
4095 | #if !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER) | |
4096 | warning ("`-a' option (basic block profile) not supported"); | |
4097 | #else | |
ec6c615d RK |
4098 | profile_block_flag = (profile_block_flag < 2) ? 1 : 3; |
4099 | #endif | |
4100 | } | |
4101 | else if (!strcmp (str, "ax")) | |
4102 | { | |
4103 | #if !defined (FUNCTION_BLOCK_PROFILER_EXIT) || !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER) | |
4104 | warning ("`-ax' option (jump profiling) not supported"); | |
4105 | #else | |
4106 | profile_block_flag = (!profile_block_flag | |
4107 | || profile_block_flag == 2) ? 2 : 3; | |
4291d9c8 RS |
4108 | #endif |
4109 | } | |
4110 | else if (str[0] == 'g') | |
4111 | { | |
4291d9c8 RS |
4112 | unsigned len; |
4113 | unsigned level; | |
ff482cef DE |
4114 | /* A lot of code assumes write_symbols == NO_DEBUG if the |
4115 | debugging level is 0 (thus -gstabs1 -gstabs0 would lose track | |
4116 | of what debugging type has been selected). This records the | |
4117 | selected type. It is an error to specify more than one | |
4118 | debugging type. */ | |
4119 | static enum debug_info_type selected_debug_type = NO_DEBUG; | |
4120 | /* Non-zero if debugging format has been explicitly set. | |
4121 | -g and -ggdb don't explicitly set the debugging format so | |
4122 | -gdwarf -g3 is equivalent to -gdwarf3. */ | |
4123 | static int type_explicitly_set_p = 0; | |
4124 | /* Table of supported debugging formats. */ | |
4125 | static struct { | |
4126 | char *arg; | |
4127 | /* Since PREFERRED_DEBUGGING_TYPE isn't necessarily a | |
4128 | constant expression, we use NO_DEBUG in its place. */ | |
4129 | enum debug_info_type debug_type; | |
4130 | int use_extensions_p; | |
4131 | } *da, debug_args[] = { | |
4132 | { "g", NO_DEBUG, DEFAULT_GDB_EXTENSIONS }, | |
4133 | { "ggdb", NO_DEBUG, 1 }, | |
4134 | #ifdef DBX_DEBUGGING_INFO | |
4135 | { "gstabs", DBX_DEBUG, 0 }, | |
4136 | { "gstabs+", DBX_DEBUG, 1 }, | |
4137 | #endif | |
4138 | #ifdef DWARF_DEBUGGING_INFO | |
4139 | { "gdwarf", DWARF_DEBUG, 0 }, | |
4140 | { "gdwarf+", DWARF_DEBUG, 1 }, | |
9a666dda | 4141 | #endif |
a94dbf2c JM |
4142 | #ifdef DWARF2_DEBUGGING_INFO |
4143 | { "gdwarf-2", DWARF2_DEBUG, 0 }, | |
ff482cef DE |
4144 | #endif |
4145 | #ifdef XCOFF_DEBUGGING_INFO | |
4146 | { "gxcoff", XCOFF_DEBUG, 0 }, | |
4147 | { "gxcoff+", XCOFF_DEBUG, 1 }, | |
4148 | #endif | |
4149 | #ifdef SDB_DEBUGGING_INFO | |
4150 | { "gcoff", SDB_DEBUG, 0 }, | |
4151 | #endif | |
4152 | { 0, 0, 0 } | |
4153 | }; | |
4154 | /* Indexed by enum debug_info_type. */ | |
4155 | static char *debug_type_names[] = { | |
9a666dda | 4156 | "none", "stabs", "coff", "dwarf-1", "dwarf-2", "xcoff" |
ff482cef | 4157 | }; |
4291d9c8 | 4158 | |
ff482cef DE |
4159 | /* Look up STR in the table. */ |
4160 | for (da = debug_args; da->arg; da++) | |
4161 | { | |
9a666dda | 4162 | if (! strncmp (str, da->arg, strlen (da->arg))) |
ff482cef DE |
4163 | { |
4164 | enum debug_info_type type = da->debug_type; | |
9a666dda JM |
4165 | char *p, *q; |
4166 | ||
4167 | p = str + strlen (da->arg); | |
4168 | if (*p && (*p < '0' || *p > '9')) | |
4169 | continue; | |
5d38efae | 4170 | len = p - str; |
e9a25f70 | 4171 | q = p; |
9a666dda JM |
4172 | while (*q && (*q >= '0' && *q <= '9')) |
4173 | q++; | |
4174 | if (*p) | |
33e5c8c3 JM |
4175 | { |
4176 | level = atoi (p); | |
4177 | if (len > 1 && !strncmp (str, "gdwarf", len)) | |
4178 | { | |
4179 | error ("use -gdwarf -g%d for DWARF v1, level %d", | |
4180 | level, level); | |
4181 | if (level == 2) | |
4182 | error ("use -gdwarf-2 for DWARF v2"); | |
4183 | } | |
4184 | } | |
9a666dda JM |
4185 | else |
4186 | level = 2; /* default debugging info level */ | |
4187 | if (*q || level > 3) | |
4188 | { | |
4189 | warning ("invalid debug level specification in option: `-%s'", | |
4190 | str); | |
4191 | /* ??? This error message is incorrect in the case of | |
4192 | -g4 -g. */ | |
4193 | warning ("no debugging information will be generated"); | |
4194 | level = 0; | |
4195 | } | |
4196 | ||
ff482cef | 4197 | if (type == NO_DEBUG) |
fe0986b4 JM |
4198 | { |
4199 | type = PREFERRED_DEBUGGING_TYPE; | |
4200 | if (len > 1 && strncmp (str, "ggdb", len) == 0) | |
4201 | { | |
4202 | #ifdef DWARF2_DEBUGGING_INFO | |
4203 | type = DWARF2_DEBUG; | |
417b0fa2 JW |
4204 | #else |
4205 | #ifdef DBX_DEBUGGING_INFO | |
fe0986b4 | 4206 | type = DBX_DEBUG; |
417b0fa2 | 4207 | #endif |
fe0986b4 JM |
4208 | #endif |
4209 | } | |
4210 | } | |
ff482cef | 4211 | |
e38eaffd RK |
4212 | if (type == NO_DEBUG) |
4213 | warning ("`-%s' not supported by this configuration of GCC", | |
4214 | str); | |
4215 | ||
ff482cef DE |
4216 | /* Does it conflict with an already selected type? */ |
4217 | if (type_explicitly_set_p | |
4218 | /* -g/-ggdb don't conflict with anything */ | |
4219 | && da->debug_type != NO_DEBUG | |
4220 | && type != selected_debug_type) | |
4221 | warning ("`-%s' ignored, conflicts with `-g%s'", | |
4222 | str, debug_type_names[(int) selected_debug_type]); | |
4223 | else | |
4224 | { | |
4225 | /* If the format has already been set, -g/-ggdb | |
4226 | only change the debug level. */ | |
4227 | if (type_explicitly_set_p | |
4228 | && da->debug_type == NO_DEBUG) | |
4229 | ; /* don't change debugging type */ | |
4230 | else | |
4231 | { | |
4232 | selected_debug_type = type; | |
4233 | type_explicitly_set_p = da->debug_type != NO_DEBUG; | |
4234 | } | |
4235 | write_symbols = (level == 0 | |
4236 | ? NO_DEBUG | |
4237 | : selected_debug_type); | |
4238 | use_gnu_debug_info_extensions = da->use_extensions_p; | |
4239 | debug_info_level = (enum debug_info_level) level; | |
4240 | } | |
4241 | break; | |
4242 | } | |
4243 | } | |
4244 | if (! da->arg) | |
7276e85d RK |
4245 | warning ("`-%s' not supported by this configuration of GCC", |
4246 | str); | |
4291d9c8 RS |
4247 | } |
4248 | else if (!strcmp (str, "o")) | |
4249 | { | |
4250 | asm_file_name = argv[++i]; | |
4251 | } | |
4252 | else if (str[0] == 'G') | |
4253 | { | |
4254 | g_switch_set = TRUE; | |
4255 | g_switch_value = atoi ((str[1] != '\0') ? str+1 : argv[++i]); | |
4256 | } | |
f246a305 RS |
4257 | else if (!strncmp (str, "aux-info", 8)) |
4258 | { | |
4259 | flag_gen_aux_info = 1; | |
4260 | aux_info_file_name = (str[8] != '\0' ? str+8 : argv[++i]); | |
4261 | } | |
4291d9c8 RS |
4262 | else |
4263 | error ("Invalid option `%s'", argv[i]); | |
4264 | } | |
4265 | else if (argv[i][0] == '+') | |
b99933c7 | 4266 | error ("Invalid option `%s'", argv[i]); |
4291d9c8 RS |
4267 | else |
4268 | filename = argv[i]; | |
4269 | } | |
4270 | ||
f602c208 RK |
4271 | /* Checker uses the frame pointer. */ |
4272 | if (flag_check_memory_usage) | |
4273 | flag_omit_frame_pointer = 0; | |
4274 | ||
f246a305 RS |
4275 | if (optimize == 0) |
4276 | { | |
a2468e45 BK |
4277 | /* Inlining does not work if not optimizing, |
4278 | so force it not to be done. */ | |
f246a305 RS |
4279 | flag_no_inline = 1; |
4280 | warn_inline = 0; | |
a2468e45 BK |
4281 | |
4282 | /* The c_decode_option and lang_decode_option functions set | |
4283 | this to `2' if -Wall is used, so we can avoid giving out | |
4284 | lots of errors for people who don't realize what -Wall does. */ | |
4285 | if (warn_uninitialized == 1) | |
4286 | warning ("-Wuninitialized is not supported without -O"); | |
f246a305 RS |
4287 | } |
4288 | ||
4291d9c8 RS |
4289 | #ifdef OVERRIDE_OPTIONS |
4290 | /* Some machines may reject certain combinations of options. */ | |
4291 | OVERRIDE_OPTIONS; | |
4292 | #endif | |
4293 | ||
d1485032 JM |
4294 | if (exceptions_via_longjmp == 2) |
4295 | { | |
4296 | #ifdef DWARF2_UNWIND_INFO | |
4297 | exceptions_via_longjmp = ! DWARF2_UNWIND_INFO; | |
4298 | #else | |
4299 | exceptions_via_longjmp = 1; | |
4300 | #endif | |
4301 | } | |
4302 | ||
ec6c615d RK |
4303 | if (profile_block_flag == 3) |
4304 | { | |
4305 | warning ("`-ax' and `-a' are conflicting options. `-a' ignored."); | |
4306 | profile_block_flag = 2; | |
4307 | } | |
4308 | ||
4291d9c8 RS |
4309 | /* Unrolling all loops implies that standard loop unrolling must also |
4310 | be done. */ | |
4311 | if (flag_unroll_all_loops) | |
4312 | flag_unroll_loops = 1; | |
4313 | /* Loop unrolling requires that strength_reduction be on also. Silently | |
4314 | turn on strength reduction here if it isn't already on. Also, the loop | |
4315 | unrolling code assumes that cse will be run after loop, so that must | |
4316 | be turned on also. */ | |
4317 | if (flag_unroll_loops) | |
4318 | { | |
4319 | flag_strength_reduce = 1; | |
4320 | flag_rerun_cse_after_loop = 1; | |
4321 | } | |
4322 | ||
4323 | /* Warn about options that are not supported on this machine. */ | |
4324 | #ifndef INSN_SCHEDULING | |
4325 | if (flag_schedule_insns || flag_schedule_insns_after_reload) | |
4326 | warning ("instruction scheduling not supported on this target machine"); | |
4327 | #endif | |
4328 | #ifndef DELAY_SLOTS | |
4329 | if (flag_delayed_branch) | |
4330 | warning ("this target machine does not have delayed branches"); | |
4331 | #endif | |
4332 | ||
4333 | /* If we are in verbose mode, write out the version and maybe all the | |
4334 | option flags in use. */ | |
4335 | if (version_flag) | |
4336 | { | |
3d5cdd42 | 4337 | print_version (stderr, ""); |
4291d9c8 | 4338 | if (! quiet_flag) |
3d5cdd42 | 4339 | print_switch_values (stderr, 0, MAX_LINE, "", " ", "\n"); |
4291d9c8 RS |
4340 | } |
4341 | ||
4291d9c8 RS |
4342 | compile_file (filename); |
4343 | ||
876ac40d | 4344 | #if !defined(OS2) && !defined(VMS) && (!defined(_WIN32) || defined (__CYGWIN32__)) |
4291d9c8 RS |
4345 | if (flag_print_mem) |
4346 | { | |
4347 | char *lim = (char *) sbrk (0); | |
4348 | ||
4349 | fprintf (stderr, "Data size %d.\n", | |
b61b1c91 | 4350 | lim - (char *) &environ); |
4291d9c8 RS |
4351 | fflush (stderr); |
4352 | ||
e9a25f70 | 4353 | #ifndef __MSDOS__ |
4291d9c8 RS |
4354 | #ifdef USG |
4355 | system ("ps -l 1>&2"); | |
4356 | #else /* not USG */ | |
4357 | system ("ps v"); | |
4358 | #endif /* not USG */ | |
e9a25f70 | 4359 | #endif |
4291d9c8 | 4360 | } |
876ac40d | 4361 | #endif /* ! OS2 && ! VMS && (! _WIN32 || CYGWIN32) */ |
4291d9c8 RS |
4362 | |
4363 | if (errorcount) | |
4364 | exit (FATAL_EXIT_CODE); | |
4365 | if (sorrycount) | |
4366 | exit (FATAL_EXIT_CODE); | |
4367 | exit (SUCCESS_EXIT_CODE); | |
299846f2 | 4368 | return 0; |
4291d9c8 RS |
4369 | } |
4370 | \f | |
4371 | /* Decode -m switches. */ | |
4372 | ||
4373 | /* Here is a table, controlled by the tm.h file, listing each -m switch | |
4374 | and which bits in `target_switches' it should set or clear. | |
4375 | If VALUE is positive, it is bits to set. | |
4376 | If VALUE is negative, -VALUE is bits to clear. | |
4377 | (The sign bit is not used so there is no confusion.) */ | |
4378 | ||
4379 | struct {char *name; int value;} target_switches [] | |
4380 | = TARGET_SWITCHES; | |
4381 | ||
4382 | /* This table is similar, but allows the switch to have a value. */ | |
4383 | ||
4384 | #ifdef TARGET_OPTIONS | |
4385 | struct {char *prefix; char ** variable;} target_options [] | |
4386 | = TARGET_OPTIONS; | |
4387 | #endif | |
4388 | ||
4389 | /* Decode the switch -mNAME. */ | |
4390 | ||
4391 | void | |
4392 | set_target_switch (name) | |
4393 | char *name; | |
4394 | { | |
4395 | register int j; | |
4396 | int valid = 0; | |
4397 | ||
4398 | for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++) | |
4399 | if (!strcmp (target_switches[j].name, name)) | |
4400 | { | |
4401 | if (target_switches[j].value < 0) | |
4402 | target_flags &= ~-target_switches[j].value; | |
4403 | else | |
4404 | target_flags |= target_switches[j].value; | |
4405 | valid = 1; | |
4406 | } | |
4407 | ||
4408 | #ifdef TARGET_OPTIONS | |
4409 | if (!valid) | |
4410 | for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++) | |
4411 | { | |
4412 | int len = strlen (target_options[j].prefix); | |
4413 | if (!strncmp (target_options[j].prefix, name, len)) | |
4414 | { | |
4415 | *target_options[j].variable = name + len; | |
4416 | valid = 1; | |
4417 | } | |
4418 | } | |
4419 | #endif | |
4420 | ||
4421 | if (!valid) | |
4422 | error ("Invalid option `%s'", name); | |
4423 | } | |
4424 | \f | |
3d5cdd42 DE |
4425 | /* Print version information to FILE. |
4426 | Each line begins with INDENT (for the case where FILE is the | |
4427 | assembler output file). */ | |
4291d9c8 | 4428 | |
3d5cdd42 DE |
4429 | void |
4430 | print_version (file, indent) | |
4431 | FILE *file; | |
4432 | char *indent; | |
4291d9c8 | 4433 | { |
3d5cdd42 DE |
4434 | fprintf (file, "%s%s%s version %s", indent, *indent != 0 ? " " : "", |
4435 | language_string, version_string); | |
4436 | fprintf (file, " (%s)", TARGET_NAME); | |
4437 | #ifdef __GNUC__ | |
4438 | #ifndef __VERSION__ | |
4439 | #define __VERSION__ "[unknown]" | |
4440 | #endif | |
4441 | fprintf (file, " compiled by GNU C version %s.\n", __VERSION__); | |
4442 | #else | |
4443 | fprintf (file, " compiled by CC.\n"); | |
4444 | #endif | |
4445 | } | |
4291d9c8 | 4446 | |
3d5cdd42 | 4447 | /* Print an option value and return the adjusted position in the line. |
309a8875 DE |
4448 | ??? We don't handle error returns from fprintf (disk full); presumably |
4449 | other code will catch a disk full though. */ | |
4291d9c8 | 4450 | |
3d5cdd42 DE |
4451 | int |
4452 | print_single_switch (file, pos, max, indent, sep, term, type, name) | |
4453 | FILE *file; | |
4454 | int pos, max; | |
4455 | char *indent, *sep, *term, *type, *name; | |
4456 | { | |
309a8875 DE |
4457 | /* The ultrix fprintf returns 0 on success, so compute the result we want |
4458 | here since we need it for the following test. */ | |
4459 | int len = strlen (sep) + strlen (type) + strlen (name); | |
4460 | ||
3d5cdd42 | 4461 | if (pos != 0 |
309a8875 | 4462 | && pos + len > max) |
4291d9c8 | 4463 | { |
3d5cdd42 DE |
4464 | fprintf (file, "%s", term); |
4465 | pos = 0; | |
4291d9c8 | 4466 | } |
3d5cdd42 DE |
4467 | if (pos == 0) |
4468 | { | |
309a8875 DE |
4469 | fprintf (file, "%s", indent); |
4470 | pos = strlen (indent); | |
3d5cdd42 | 4471 | } |
309a8875 DE |
4472 | fprintf (file, "%s%s%s", sep, type, name); |
4473 | pos += len; | |
3d5cdd42 | 4474 | return pos; |
4291d9c8 RS |
4475 | } |
4476 | ||
3d5cdd42 DE |
4477 | /* Print active target switches to FILE. |
4478 | POS is the current cursor position and MAX is the size of a "line". | |
4479 | Each line begins with INDENT and ends with TERM. | |
4480 | Each switch is separated from the next by SEP. */ | |
4291d9c8 | 4481 | |
3d5cdd42 DE |
4482 | void |
4483 | print_switch_values (file, pos, max, indent, sep, term) | |
4484 | FILE *file; | |
4485 | int pos, max; | |
4486 | char *indent, *sep, *term; | |
4291d9c8 | 4487 | { |
3d5cdd42 DE |
4488 | int j, flags; |
4489 | char **p; | |
4490 | ||
4491 | /* Print the options as passed. */ | |
4291d9c8 | 4492 | |
3d5cdd42 DE |
4493 | pos = print_single_switch (file, pos, max, indent, *indent ? " " : "", term, |
4494 | "options passed: ", ""); | |
4495 | ||
520e7ff5 | 4496 | for (p = &save_argv[1]; *p != NULL; p++) |
3d5cdd42 DE |
4497 | if (**p == '-') |
4498 | { | |
4499 | /* Ignore these. */ | |
520e7ff5 DE |
4500 | if (strcmp (*p, "-o") == 0) |
4501 | { | |
4502 | if (p[1] != NULL) | |
4503 | p++; | |
4504 | continue; | |
4505 | } | |
3d5cdd42 DE |
4506 | if (strcmp (*p, "-quiet") == 0) |
4507 | continue; | |
4508 | if (strcmp (*p, "-version") == 0) | |
4509 | continue; | |
4510 | if ((*p)[1] == 'd') | |
4511 | continue; | |
4512 | ||
4513 | pos = print_single_switch (file, pos, max, indent, sep, term, *p, ""); | |
4514 | } | |
4515 | if (pos > 0) | |
4516 | fprintf (file, "%s", term); | |
4517 | ||
4518 | /* Print the -f and -m options that have been enabled. | |
4519 | We don't handle language specific options but printing argv | |
4520 | should suffice. */ | |
4521 | ||
4522 | pos = print_single_switch (file, 0, max, indent, *indent ? " " : "", term, | |
4523 | "options enabled: ", ""); | |
4291d9c8 RS |
4524 | |
4525 | for (j = 0; j < sizeof f_options / sizeof f_options[0]; j++) | |
4526 | if (*f_options[j].variable == f_options[j].on_value) | |
3d5cdd42 DE |
4527 | pos = print_single_switch (file, pos, max, indent, sep, term, |
4528 | "-f", f_options[j].string); | |
4291d9c8 | 4529 | |
3d5cdd42 | 4530 | /* Print target specific options. */ |
4291d9c8 | 4531 | |
3d5cdd42 | 4532 | flags = target_flags; |
4291d9c8 RS |
4533 | for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++) |
4534 | if (target_switches[j].name[0] != '\0' | |
4535 | && target_switches[j].value > 0 | |
4536 | && ((target_switches[j].value & target_flags) | |
4537 | == target_switches[j].value)) | |
3d5cdd42 DE |
4538 | { |
4539 | pos = print_single_switch (file, pos, max, indent, sep, term, | |
4540 | "-m", target_switches[j].name); | |
4541 | flags &= ~ target_switches[j].value; | |
4542 | } | |
4543 | ||
4544 | #ifdef TARGET_OPTIONS | |
4545 | for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++) | |
4546 | if (*target_options[j].variable != NULL) | |
4547 | { | |
4548 | char prefix[256]; | |
4549 | sprintf (prefix, "-m%s", target_options[j].prefix); | |
4550 | pos = print_single_switch (file, pos, max, indent, sep, term, | |
4551 | prefix, *target_options[j].variable); | |
4552 | } | |
4553 | #endif | |
4291d9c8 | 4554 | |
3d5cdd42 | 4555 | fprintf (file, "%s", term); |
4291d9c8 | 4556 | } |
9a666dda JM |
4557 | |
4558 | /* Record the beginning of a new source file, named FILENAME. */ | |
4559 | ||
4560 | void | |
4561 | debug_start_source_file (filename) | |
4562 | register char *filename; | |
4563 | { | |
4564 | #ifdef DBX_DEBUGGING_INFO | |
4565 | if (write_symbols == DBX_DEBUG) | |
4566 | dbxout_start_new_source_file (filename); | |
4567 | #endif | |
4568 | #ifdef DWARF_DEBUGGING_INFO | |
4569 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4570 | && write_symbols == DWARF_DEBUG) | |
4571 | dwarfout_start_new_source_file (filename); | |
4572 | #endif /* DWARF_DEBUGGING_INFO */ | |
4573 | #ifdef DWARF2_DEBUGGING_INFO | |
4574 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4575 | && write_symbols == DWARF2_DEBUG) | |
4576 | dwarf2out_start_source_file (filename); | |
4577 | #endif /* DWARF2_DEBUGGING_INFO */ | |
cc694a81 DE |
4578 | #ifdef SDB_DEBUGGING_INFO |
4579 | if (write_symbols == SDB_DEBUG) | |
4580 | sdbout_start_new_source_file (filename); | |
4581 | #endif | |
9a666dda JM |
4582 | } |
4583 | ||
4584 | /* Record the resumption of a source file. LINENO is the line number in | |
4585 | the source file we are returning to. */ | |
4586 | ||
4587 | void | |
4588 | debug_end_source_file (lineno) | |
4589 | register unsigned lineno; | |
4590 | { | |
4591 | #ifdef DBX_DEBUGGING_INFO | |
4592 | if (write_symbols == DBX_DEBUG) | |
4593 | dbxout_resume_previous_source_file (); | |
4594 | #endif | |
4595 | #ifdef DWARF_DEBUGGING_INFO | |
4596 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4597 | && write_symbols == DWARF_DEBUG) | |
4598 | dwarfout_resume_previous_source_file (lineno); | |
4599 | #endif /* DWARF_DEBUGGING_INFO */ | |
4600 | #ifdef DWARF2_DEBUGGING_INFO | |
4601 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4602 | && write_symbols == DWARF2_DEBUG) | |
4603 | dwarf2out_end_source_file (); | |
4604 | #endif /* DWARF2_DEBUGGING_INFO */ | |
cc694a81 DE |
4605 | #ifdef SDB_DEBUGGING_INFO |
4606 | if (write_symbols == SDB_DEBUG) | |
4607 | sdbout_resume_previous_source_file (); | |
4608 | #endif | |
9a666dda JM |
4609 | } |
4610 | ||
4611 | /* Called from check_newline in c-parse.y. The `buffer' parameter contains | |
4612 | the tail part of the directive line, i.e. the part which is past the | |
4613 | initial whitespace, #, whitespace, directive-name, whitespace part. */ | |
4614 | ||
4615 | void | |
4616 | debug_define (lineno, buffer) | |
4617 | register unsigned lineno; | |
4618 | register char *buffer; | |
4619 | { | |
4620 | #ifdef DWARF_DEBUGGING_INFO | |
4621 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4622 | && write_symbols == DWARF_DEBUG) | |
4623 | dwarfout_define (lineno, buffer); | |
4624 | #endif /* DWARF_DEBUGGING_INFO */ | |
4625 | #ifdef DWARF2_DEBUGGING_INFO | |
4626 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4627 | && write_symbols == DWARF2_DEBUG) | |
4628 | dwarf2out_define (lineno, buffer); | |
4629 | #endif /* DWARF2_DEBUGGING_INFO */ | |
4630 | } | |
4631 | ||
4632 | /* Called from check_newline in c-parse.y. The `buffer' parameter contains | |
4633 | the tail part of the directive line, i.e. the part which is past the | |
4634 | initial whitespace, #, whitespace, directive-name, whitespace part. */ | |
4635 | ||
4636 | void | |
4637 | debug_undef (lineno, buffer) | |
4638 | register unsigned lineno; | |
4639 | register char *buffer; | |
4640 | { | |
4641 | #ifdef DWARF_DEBUGGING_INFO | |
4642 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4643 | && write_symbols == DWARF_DEBUG) | |
4644 | dwarfout_undef (lineno, buffer); | |
4645 | #endif /* DWARF_DEBUGGING_INFO */ | |
4646 | #ifdef DWARF2_DEBUGGING_INFO | |
4647 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4648 | && write_symbols == DWARF2_DEBUG) | |
4649 | dwarf2out_undef (lineno, buffer); | |
4650 | #endif /* DWARF2_DEBUGGING_INFO */ | |
4651 | } |