1 /* Top level of GCC compilers (cc1, cc1plus, etc.)
2 Copyright (C) 1987-2021 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This is the top level of cc1/c++.
21 It parses command args, opens files, invokes the various passes
22 in the proper order, and counts the time used by each.
23 Error messages and low-level interface to malloc also handled here. */
27 #include "coretypes.h"
33 #include "alloc-pool.h"
37 #include "optabs-libfuncs.h"
38 #include "insn-config.h"
43 #include "diagnostic.h"
45 #include "tree-inline.h"
46 #include "realmpfr.h" /* For GMP/MPFR/MPC versions, in print_version. */
49 #include "insn-attr.h"
54 #include "tree-diagnostic.h"
57 #include "dwarf2asm.h"
59 #include "common/common-target.h"
60 #include "langhooks.h"
61 #include "cfgloop.h" /* for init_set_costs */
62 #include "hosthooks.h"
64 #include "opts-diagnostic.h"
65 #include "stringpool.h"
71 #include "pass_manager.h"
72 #include "auto-profile.h"
73 #include "dwarf2out.h"
74 #include "ipa-reference.h"
75 #include "symbol-summary.h"
79 #include "omp-offload.h"
80 #include "edit-context.h"
81 #include "tree-pass.h"
83 #include "ipa-fnsummary.h"
84 #include "dump-context.h"
85 #include "print-tree.h"
86 #include "optinfo-emit-json.h"
87 #include "ipa-modref-tree.h"
88 #include "ipa-modref.h"
89 #include "ipa-param-manipulation.h"
92 #if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO)
96 #ifdef XCOFF_DEBUGGING_INFO
97 #include "xcoffout.h" /* Needed for external data declarations. */
100 #include "selftest.h"
103 #include <isl/version.h>
106 static void general_init (const char *, bool);
107 static void do_compile ();
108 static void process_options (void);
109 static void backend_init (void);
110 static int lang_dependent_init (const char *);
111 static void init_asm_output (const char *);
112 static void finalize (bool);
114 static void crash_signal (int) ATTRIBUTE_NORETURN
;
115 static void compile_file (void);
117 /* True if we don't need a backend (e.g. preprocessing only). */
118 static bool no_backend
;
120 /* Decoded options, and number of such options. */
121 struct cl_decoded_option
*save_decoded_options
;
122 unsigned int save_decoded_options_count
;
124 /* Used to enable -fvar-tracking, -fweb and -frename-registers according
125 to optimize in process_options (). */
126 #define AUTODETECT_VALUE 2
128 /* Debug hooks - dependent upon command line options. */
130 const struct gcc_debug_hooks
*debug_hooks
;
132 /* The FUNCTION_DECL for the function currently being compiled,
133 or 0 if between functions. */
134 tree current_function_decl
;
136 /* Set to the FUNC_BEGIN label of the current function, or NULL
138 const char * current_function_func_begin_label
;
140 /* A random sequence of characters, unless overridden by user. */
141 static const char *flag_random_seed
;
143 /* A local time stamp derived from the time of compilation. It will be
144 zero if the system cannot provide a time. It will be -1u, if the
145 user has specified a particular random seed. */
148 /* Random number for this compilation */
149 HOST_WIDE_INT random_seed
;
153 /* When non-NULL, indicates that whenever space is allocated on the
154 stack, the resulting stack pointer must not pass this
155 address---that is, for stacks that grow downward, the stack pointer
156 must always be greater than or equal to this address; for stacks
157 that grow upward, the stack pointer must be less than this address.
158 At present, the rtx may be either a REG or a SYMBOL_REF, although
159 the support provided depends on the backend. */
162 class target_flag_state default_target_flag_state
;
163 #if SWITCHABLE_TARGET
164 class target_flag_state
*this_target_flag_state
= &default_target_flag_state
;
166 #define this_target_flag_state (&default_target_flag_state)
169 /* The user symbol prefix after having resolved same. */
170 const char *user_label_prefix
;
172 /* Output files for assembler code (real compiler output)
173 and debugging dumps. */
177 FILE *callgraph_info_file
= NULL
;
178 static bitmap callgraph_info_external_printed
;
179 FILE *stack_usage_file
= NULL
;
181 /* The current working directory of a translation. It's generally the
182 directory from which compilation was initiated, but a preprocessed
183 file may specify the original directory in which it was
186 static const char *src_pwd
;
188 /* Initialize src_pwd with the given string, and return true. If it
189 was already initialized, return false. As a special case, it may
190 be called with a NULL argument to test whether src_pwd has NOT been
194 set_src_pwd (const char *pwd
)
198 if (strcmp (src_pwd
, pwd
) == 0)
204 src_pwd
= xstrdup (pwd
);
208 /* Return the directory from which the translation unit was initiated,
209 in case set_src_pwd() was not called before to assign it a
225 /* Called when the start of a function definition is parsed,
226 this function prints on stderr the name of the function. */
228 announce_function (tree decl
)
232 if (rtl_dump_and_exit
)
233 fprintf (stderr
, "%s ",
234 identifier_to_locale (IDENTIFIER_POINTER (DECL_NAME (decl
))));
236 fprintf (stderr
, " %s",
237 identifier_to_locale (lang_hooks
.decl_printable_name (decl
, 2)));
239 pp_needs_newline (global_dc
->printer
) = true;
240 diagnostic_set_last_function (global_dc
, (diagnostic_info
*) NULL
);
244 /* Initialize local_tick with the time of day, or -1 if
245 flag_random_seed is set. */
248 init_local_tick (void)
250 if (!flag_random_seed
)
252 #ifdef HAVE_GETTIMEOFDAY
256 gettimeofday (&tv
, NULL
);
257 local_tick
= (unsigned) tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
261 time_t now
= time (NULL
);
263 if (now
!= (time_t)-1)
264 local_tick
= (unsigned) now
;
272 /* Obtain the random_seed. Unless NOINIT, initialize it if
273 it's not provided in the command line. */
276 get_random_seed (bool noinit
)
278 if (!random_seed
&& !noinit
)
280 int fd
= open ("/dev/urandom", O_RDONLY
);
283 if (read (fd
, &random_seed
, sizeof (random_seed
))
284 != sizeof (random_seed
))
289 random_seed
= local_tick
^ getpid ();
294 /* Set flag_random_seed to VAL, and if non-null, reinitialize random_seed. */
297 set_random_seed (const char *val
)
299 flag_random_seed
= val
;
300 if (flag_random_seed
)
304 /* When the driver passed in a hex number don't crc it again */
305 random_seed
= strtoul (flag_random_seed
, &endp
, 0);
306 if (!(endp
> flag_random_seed
&& *endp
== 0))
307 random_seed
= crc32_string (0, flag_random_seed
);
311 /* Handler for fatal signals, such as SIGSEGV. These are transformed
312 into ICE messages, which is much more user friendly. In case the
313 error printer crashes, reset the signal to prevent infinite recursion. */
316 crash_signal (int signo
)
318 signal (signo
, SIG_DFL
);
320 /* If we crashed while processing an ASM statement, then be a little more
321 graceful. It's most likely the user's fault. */
322 if (this_is_asm_operands
)
324 output_operand_lossage ("unrecoverable error");
325 exit (FATAL_EXIT_CODE
);
328 internal_error ("%s", strsignal (signo
));
331 /* A subroutine of wrapup_global_declarations. We've come to the end of
332 the compilation unit. All deferred variables should be undeferred,
333 and all incomplete decls should be finalized. */
336 wrapup_global_declaration_1 (tree decl
)
338 /* We're not deferring this any longer. Assignment is conditional to
339 avoid needlessly dirtying PCH pages. */
340 if (CODE_CONTAINS_STRUCT (TREE_CODE (decl
), TS_DECL_WITH_VIS
)
341 && DECL_DEFER_OUTPUT (decl
) != 0)
342 DECL_DEFER_OUTPUT (decl
) = 0;
344 if (VAR_P (decl
) && DECL_SIZE (decl
) == 0)
345 lang_hooks
.finish_incomplete_decl (decl
);
348 /* A subroutine of wrapup_global_declarations. Decide whether or not DECL
349 needs to be output. Return true if it is output. */
352 wrapup_global_declaration_2 (tree decl
)
354 if (TREE_ASM_WRITTEN (decl
) || DECL_EXTERNAL (decl
)
355 || (VAR_P (decl
) && DECL_HAS_VALUE_EXPR_P (decl
)))
358 /* Don't write out static consts, unless we still need them.
360 We also keep static consts if not optimizing (for debugging),
361 unless the user specified -fno-keep-static-consts.
362 ??? They might be better written into the debug information.
363 This is possible when using DWARF.
365 A language processor that wants static constants to be always
366 written out (even if it is not used) is responsible for
367 calling rest_of_decl_compilation itself. E.g. the C front-end
368 calls rest_of_decl_compilation from finish_decl.
369 One motivation for this is that is conventional in some
370 environments to write things like:
371 static const char rcsid[] = "... version string ...";
372 intending to force the string to be in the executable.
374 A language processor that would prefer to have unneeded
375 static constants "optimized away" would just defer writing
376 them out until here. E.g. C++ does this, because static
377 constants are often defined in header files.
379 ??? A tempting alternative (for both C and C++) would be
380 to force a constant to be written if and only if it is
381 defined in a main file, as opposed to an include file. */
383 if (VAR_P (decl
) && TREE_STATIC (decl
))
387 node
= varpool_node::get (decl
);
389 if (!node
&& flag_ltrans
)
391 else if (node
&& node
->definition
)
393 else if (node
&& node
->alias
)
395 else if (!symtab
->global_info_ready
397 || TREE_USED (DECL_ASSEMBLER_NAME (decl
))))
399 else if (node
&& node
->analyzed
)
401 else if (DECL_COMDAT (decl
))
403 else if (TREE_READONLY (decl
) && !TREE_PUBLIC (decl
)
404 && (optimize
|| !flag_keep_static_consts
405 || DECL_ARTIFICIAL (decl
)))
410 rest_of_decl_compilation (decl
, 1, 1);
418 /* Do any final processing required for the declarations in VEC, of
419 which there are LEN. We write out inline functions and variables
420 that have been deferred until this point, but which are required.
421 Returns nonzero if anything was put out. */
424 wrapup_global_declarations (tree
*vec
, int len
)
426 bool reconsider
, output_something
= false;
429 for (i
= 0; i
< len
; i
++)
430 wrapup_global_declaration_1 (vec
[i
]);
432 /* Now emit any global variables or functions that we have been
433 putting off. We need to loop in case one of the things emitted
434 here references another one which comes earlier in the list. */
438 for (i
= 0; i
< len
; i
++)
439 reconsider
|= wrapup_global_declaration_2 (vec
[i
]);
441 output_something
= true;
445 return output_something
;
448 /* Compile an entire translation unit. Write a file of assembly
449 output and various debugging dumps. */
454 timevar_start (TV_PHASE_PARSING
);
455 timevar_push (TV_PARSE_GLOBAL
);
457 /* Parse entire file and generate initial debug information. */
458 lang_hooks
.parse_file ();
460 timevar_pop (TV_PARSE_GLOBAL
);
461 timevar_stop (TV_PHASE_PARSING
);
463 if (flag_dump_locations
)
464 dump_location_info (stderr
);
466 /* Compilation is now finished except for writing
467 what's left of the symbol table output. */
469 if (flag_syntax_only
|| flag_wpa
)
472 /* Reset maximum_field_alignment, it can be adjusted by #pragma pack
473 and this shouldn't influence any types built by the middle-end
474 from now on (like gcov_info_type). */
475 maximum_field_alignment
= initial_max_fld_align
* BITS_PER_UNIT
;
477 ggc_protect_identifiers
= false;
479 /* Run the actual compilation process. */
482 timevar_start (TV_PHASE_OPT_GEN
);
483 symtab
->finalize_compilation_unit ();
484 timevar_stop (TV_PHASE_OPT_GEN
);
487 /* Perform any post compilation-proper parser cleanups and
488 processing. This is currently only needed for the C++ parser,
489 which can be hopefully cleaned up so this hook is no longer
491 if (lang_hooks
.decls
.post_compilation_parsing_cleanups
)
492 lang_hooks
.decls
.post_compilation_parsing_cleanups ();
494 dump_context::get ().finish_any_json_writer ();
499 timevar_start (TV_PHASE_LATE_ASM
);
501 /* Compilation unit is finalized. When producing non-fat LTO object, we are
502 basically finished. */
503 if ((in_lto_p
&& flag_incremental_link
!= INCREMENTAL_LINK_LTO
)
504 || !flag_lto
|| flag_fat_lto_objects
)
506 /* File-scope initialization for AddressSanitizer. */
507 if (flag_sanitize
& SANITIZE_ADDRESS
)
510 if (flag_sanitize
& SANITIZE_THREAD
)
514 hwasan_finish_file ();
518 output_shared_constant_pool ();
519 output_object_blocks ();
520 finish_tm_clone_pairs ();
522 /* Write out any pending weak symbol declarations. */
525 /* This must be at the end before unwind and debug info.
526 Some target ports emit PIC setup thunks here. */
527 insn_locations_init ();
528 targetm
.asm_out
.code_end ();
530 /* Do dbx symbols. */
531 timevar_push (TV_SYMOUT
);
533 #if defined DWARF2_DEBUGGING_INFO || defined DWARF2_UNWIND_INFO
534 dwarf2out_frame_finish ();
538 (*debug_hooks
->finish
) (main_input_filename
);
540 timevar_pop (TV_SYMOUT
);
542 /* Output some stuff at end of file if nec. */
544 dw2_output_indirect_constants ();
546 /* Flush any pending external directives. */
547 process_pending_assemble_externals ();
550 /* Let linker plugin know that this is a slim object and must be LTOed
551 even when user did not ask for it. */
552 if (flag_generate_lto
&& !flag_fat_lto_objects
)
554 #if defined ASM_OUTPUT_ALIGNED_DECL_COMMON
555 ASM_OUTPUT_ALIGNED_DECL_COMMON (asm_out_file
, NULL_TREE
, "__gnu_lto_slim",
556 HOST_WIDE_INT_1U
, 8);
557 #elif defined ASM_OUTPUT_ALIGNED_COMMON
558 ASM_OUTPUT_ALIGNED_COMMON (asm_out_file
, "__gnu_lto_slim",
559 HOST_WIDE_INT_1U
, 8);
561 ASM_OUTPUT_COMMON (asm_out_file
, "__gnu_lto_slim",
567 /* Attach a special .ident directive to the end of the file to identify
568 the version of GCC which compiled this code. The format of the .ident
569 string is patterned after the ones produced by native SVR4 compilers. */
572 const char *pkg_version
= "(GNU) ";
575 if (strcmp ("(GCC) ", pkgversion_string
))
576 pkg_version
= pkgversion_string
;
578 ident_str
= ACONCAT (("GCC: ", pkg_version
, version_string
, NULL
));
579 targetm
.asm_out
.output_ident (ident_str
);
582 /* Auto profile finalization. */
583 if (flag_auto_profile
)
586 /* Invoke registered plugin callbacks. */
587 invoke_plugin_callbacks (PLUGIN_FINISH_UNIT
, NULL
);
589 /* This must be at the end. Some target ports emit end of file directives
590 into the assembly file here, and hence we cannot output anything to the
591 assembly file after this point. */
592 targetm
.asm_out
.file_end ();
594 timevar_stop (TV_PHASE_LATE_ASM
);
597 /* Print version information to FILE.
598 Each line begins with INDENT (for the case where FILE is the
599 assembler output file).
601 If SHOW_GLOBAL_STATE is true (for cc1 etc), we are within the compiler
602 proper and can print pertinent state (e.g. params and plugins).
604 If SHOW_GLOBAL_STATE is false (for use by libgccjit), we are outside the
605 compiler, and we don't hold the mutex on the compiler's global state:
606 we can't print params and plugins, since they might not be initialized,
607 or might be being manipulated by a compile running in another
611 print_version (FILE *file
, const char *indent
, bool show_global_state
)
613 static const char fmt1
[] =
615 N_("%s%s%s %sversion %s (%s)\n%s\tcompiled by GNU C version %s, ")
617 N_("%s%s%s %sversion %s (%s) compiled by CC, ")
620 static const char fmt2
[] =
621 N_("GMP version %s, MPFR version %s, MPC version %s, isl version %s\n");
622 static const char fmt3
[] =
623 N_("%s%swarning: %s header version %s differs from library version %s.\n");
624 static const char fmt4
[] =
625 N_("%s%sGGC heuristics: --param ggc-min-expand=%d --param ggc-min-heapsize=%d\n");
627 #define __VERSION__ "[?]"
630 file
== stderr
? _(fmt1
) : fmt1
,
631 indent
, *indent
!= 0 ? " " : "",
632 lang_hooks
.name
, pkgversion_string
, version_string
, TARGET_NAME
,
633 indent
, __VERSION__
);
635 /* We need to stringify the GMP macro values. Ugh, gmp_version has
636 two string formats, "i.j.k" and "i.j" when k is zero. As of
637 gmp-4.3.0, GMP always uses the 3 number format. */
638 #define GCC_GMP_STRINGIFY_VERSION3(X) #X
639 #define GCC_GMP_STRINGIFY_VERSION2(X) GCC_GMP_STRINGIFY_VERSION3 (X)
640 #define GCC_GMP_VERSION_NUM(X,Y,Z) (((X) << 16L) | ((Y) << 8) | (Z))
641 #define GCC_GMP_VERSION \
642 GCC_GMP_VERSION_NUM(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, __GNU_MP_VERSION_PATCHLEVEL)
643 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,0) && __GNU_MP_VERSION_PATCHLEVEL == 0
644 #define GCC_GMP_STRINGIFY_VERSION \
645 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION) "." \
646 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_MINOR)
648 #define GCC_GMP_STRINGIFY_VERSION \
649 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION) "." \
650 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_MINOR) "." \
651 GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_PATCHLEVEL)
654 file
== stderr
? _(fmt2
) : fmt2
,
655 GCC_GMP_STRINGIFY_VERSION
, MPFR_VERSION_STRING
, MPC_VERSION_STRING
,
662 if (strcmp (GCC_GMP_STRINGIFY_VERSION
, gmp_version
))
664 file
== stderr
? _(fmt3
) : fmt3
,
665 indent
, *indent
!= 0 ? " " : "",
666 "GMP", GCC_GMP_STRINGIFY_VERSION
, gmp_version
);
667 if (strcmp (MPFR_VERSION_STRING
, mpfr_get_version ()))
669 file
== stderr
? _(fmt3
) : fmt3
,
670 indent
, *indent
!= 0 ? " " : "",
671 "MPFR", MPFR_VERSION_STRING
, mpfr_get_version ());
672 if (strcmp (MPC_VERSION_STRING
, mpc_get_version ()))
674 file
== stderr
? _(fmt3
) : fmt3
,
675 indent
, *indent
!= 0 ? " " : "",
676 "MPC", MPC_VERSION_STRING
, mpc_get_version ());
678 if (show_global_state
)
681 file
== stderr
? _(fmt4
) : fmt4
,
682 indent
, *indent
!= 0 ? " " : "",
683 param_ggc_min_expand
, param_ggc_min_heapsize
);
685 print_plugins_versions (file
, indent
);
691 /* Open assembly code output file. Do this even if -fsyntax-only is
692 on, because then the driver will have provided the name of a
693 temporary file or bit bucket for us. NAME is the file specified on
694 the command line, possibly NULL. */
696 init_asm_output (const char *name
)
698 if (name
== NULL
&& asm_file_name
== 0)
699 asm_out_file
= stdout
;
702 if (asm_file_name
== 0)
704 int len
= strlen (dump_base_name
);
705 char *dumpname
= XNEWVEC (char, len
+ 6);
707 memcpy (dumpname
, dump_base_name
, len
+ 1);
708 strip_off_ending (dumpname
, len
);
709 strcat (dumpname
, ".s");
710 asm_file_name
= dumpname
;
712 if (!strcmp (asm_file_name
, "-"))
713 asm_out_file
= stdout
;
714 else if (!canonical_filename_eq (asm_file_name
, name
)
715 || !strcmp (asm_file_name
, HOST_BIT_BUCKET
))
716 asm_out_file
= fopen (asm_file_name
, "w");
718 /* Use UNKOWN_LOCATION to prevent gcc from printing the first
719 line in the current file. */
720 fatal_error (UNKNOWN_LOCATION
,
721 "input file %qs is the same as output file",
723 if (asm_out_file
== 0)
724 fatal_error (UNKNOWN_LOCATION
,
725 "cannot open %qs for writing: %m", asm_file_name
);
728 if (!flag_syntax_only
)
730 targetm
.asm_out
.file_start ();
732 if (flag_record_gcc_switches
)
734 if (targetm
.asm_out
.record_gcc_switches
)
737 = gen_producer_string (lang_hooks
.name
,
738 save_decoded_options
,
739 save_decoded_options_count
);
740 targetm
.asm_out
.record_gcc_switches (str
);
743 inform (UNKNOWN_LOCATION
,
744 "%<-frecord-gcc-switches%> is not supported by "
745 "the current target");
748 if (flag_verbose_asm
)
750 print_version (asm_out_file
, ASM_COMMENT_START
, true);
751 fputs (ASM_COMMENT_START
, asm_out_file
);
752 fputs (" options passed: ", asm_out_file
);
753 char *cmdline
= gen_command_line_string (save_decoded_options
,
754 save_decoded_options_count
);
755 fputs (cmdline
, asm_out_file
);
757 fputc ('\n', asm_out_file
);
762 /* A helper function; used as the reallocator function for cpp's line
765 realloc_for_line_map (void *ptr
, size_t len
)
767 return ggc_realloc (ptr
, len
);
770 /* A helper function: used as the allocator function for
771 identifier_to_locale. */
773 alloc_for_identifier_to_locale (size_t len
)
775 return ggc_alloc_atomic (len
);
778 /* Output stack usage information. */
780 output_stack_usage_1 (FILE *cf
)
782 static bool warning_issued
= false;
783 enum stack_usage_kind_type
{ STATIC
= 0, DYNAMIC
, DYNAMIC_BOUNDED
};
784 const char *stack_usage_kind_str
[] = {
789 HOST_WIDE_INT stack_usage
= current_function_static_stack_size
;
790 enum stack_usage_kind_type stack_usage_kind
;
796 warning (0, "stack usage computation not supported for this target");
797 warning_issued
= true;
802 stack_usage_kind
= STATIC
;
804 /* Add the maximum amount of space pushed onto the stack. */
805 if (maybe_ne (current_function_pushed_stack_size
, 0))
808 if (current_function_pushed_stack_size
.is_constant (&extra
))
810 stack_usage
+= extra
;
811 stack_usage_kind
= DYNAMIC_BOUNDED
;
815 extra
= constant_lower_bound (current_function_pushed_stack_size
);
816 stack_usage
+= extra
;
817 stack_usage_kind
= DYNAMIC
;
821 /* Now on to the tricky part: dynamic stack allocation. */
822 if (current_function_allocates_dynamic_stack_space
)
824 if (stack_usage_kind
!= DYNAMIC
)
826 if (current_function_has_unbounded_dynamic_stack_size
)
827 stack_usage_kind
= DYNAMIC
;
829 stack_usage_kind
= DYNAMIC_BOUNDED
;
832 /* Add the size even in the unbounded case, this can't hurt. */
833 stack_usage
+= current_function_dynamic_stack_size
;
836 if (cf
&& flag_callgraph_info
& CALLGRAPH_INFO_STACK_USAGE
)
837 fprintf (cf
, "\\n" HOST_WIDE_INT_PRINT_DEC
" bytes (%s)",
839 stack_usage_kind_str
[stack_usage_kind
]);
841 if (stack_usage_file
)
843 print_decl_identifier (stack_usage_file
, current_function_decl
,
844 PRINT_DECL_ORIGIN
| PRINT_DECL_NAME
);
845 fprintf (stack_usage_file
, "\t" HOST_WIDE_INT_PRINT_DEC
"\t%s\n",
846 stack_usage
, stack_usage_kind_str
[stack_usage_kind
]);
849 if (warn_stack_usage
>= 0 && warn_stack_usage
< HOST_WIDE_INT_MAX
)
851 const location_t loc
= DECL_SOURCE_LOCATION (current_function_decl
);
853 if (stack_usage_kind
== DYNAMIC
)
854 warning_at (loc
, OPT_Wstack_usage_
, "stack usage might be unbounded");
855 else if (stack_usage
> warn_stack_usage
)
857 if (stack_usage_kind
== DYNAMIC_BOUNDED
)
859 OPT_Wstack_usage_
, "stack usage might be %wu bytes",
862 warning_at (loc
, OPT_Wstack_usage_
, "stack usage is %wu bytes",
868 /* Dump placeholder node for indirect calls in VCG format. */
870 #define INDIRECT_CALL_NAME "__indirect_call"
873 dump_final_node_vcg_start (FILE *f
, tree decl
)
875 fputs ("node: { title: \"", f
);
877 print_decl_identifier (f
, decl
, PRINT_DECL_UNIQUE_NAME
);
879 fputs (INDIRECT_CALL_NAME
, f
);
880 fputs ("\" label: \"", f
);
883 print_decl_identifier (f
, decl
, PRINT_DECL_NAME
);
885 print_decl_identifier (f
, decl
, PRINT_DECL_ORIGIN
);
888 fputs ("Indirect Call Placeholder", f
);
891 /* Dump final cgraph edge in VCG format. */
894 dump_final_callee_vcg (FILE *f
, location_t location
, tree callee
)
896 if ((!callee
|| DECL_EXTERNAL (callee
))
897 && bitmap_set_bit (callgraph_info_external_printed
,
898 callee
? DECL_UID (callee
) + 1 : 0))
900 dump_final_node_vcg_start (f
, callee
);
901 fputs ("\" shape : ellipse }\n", f
);
904 fputs ("edge: { sourcename: \"", f
);
905 print_decl_identifier (f
, current_function_decl
, PRINT_DECL_UNIQUE_NAME
);
906 fputs ("\" targetname: \"", f
);
908 print_decl_identifier (f
, callee
, PRINT_DECL_UNIQUE_NAME
);
910 fputs (INDIRECT_CALL_NAME
, f
);
911 if (LOCATION_LOCUS (location
) != UNKNOWN_LOCATION
)
913 expanded_location loc
;
914 fputs ("\" label: \"", f
);
915 loc
= expand_location (location
);
916 fprintf (f
, "%s:%d:%d", loc
.file
, loc
.line
, loc
.column
);
921 /* Dump final cgraph node in VCG format. */
924 dump_final_node_vcg (FILE *f
)
926 dump_final_node_vcg_start (f
, current_function_decl
);
928 if (flag_stack_usage_info
929 || (flag_callgraph_info
& CALLGRAPH_INFO_STACK_USAGE
))
930 output_stack_usage_1 (f
);
932 if (flag_callgraph_info
& CALLGRAPH_INFO_DYNAMIC_ALLOC
)
934 fprintf (f
, "\\n%u dynamic objects", vec_safe_length (cfun
->su
->dallocs
));
937 callinfo_dalloc
*cda
;
938 FOR_EACH_VEC_SAFE_ELT (cfun
->su
->dallocs
, i
, cda
)
940 expanded_location loc
= expand_location (cda
->location
);
941 fprintf (f
, "\\n %s", cda
->name
);
942 fprintf (f
, " %s:%d:%d", loc
.file
, loc
.line
, loc
.column
);
945 vec_free (cfun
->su
->dallocs
);
946 cfun
->su
->dallocs
= NULL
;
953 FOR_EACH_VEC_SAFE_ELT (cfun
->su
->callees
, i
, c
)
954 dump_final_callee_vcg (f
, c
->location
, c
->decl
);
955 vec_free (cfun
->su
->callees
);
956 cfun
->su
->callees
= NULL
;
959 /* Output stack usage and callgraph info, as requested. */
961 output_stack_usage (void)
963 if (flag_callgraph_info
)
964 dump_final_node_vcg (callgraph_info_file
);
966 output_stack_usage_1 (NULL
);
969 /* Open an auxiliary output file. */
971 open_auxiliary_file (const char *ext
)
976 filename
= concat (aux_base_name
, ".", ext
, NULL
);
977 file
= fopen (filename
, "w");
979 fatal_error (input_location
, "cannot open %s for writing: %m", filename
);
984 /* Alternative diagnostics callback for reentered ICE reporting. */
987 internal_error_reentered (diagnostic_context
*, const char *, va_list *)
989 /* Flush the dump file if emergency_dump_function itself caused an ICE. */
994 /* Auxiliary callback for the diagnostics code. */
997 internal_error_function (diagnostic_context
*, const char *, va_list *)
999 global_dc
->internal_error
= internal_error_reentered
;
1001 emergency_dump_function ();
1004 /* Initialization of the front end environment, before command line
1005 options are parsed. Signal handlers, internationalization etc.
1006 ARGV0 is main's argv[0]. */
1008 general_init (const char *argv0
, bool init_signals
)
1012 p
= argv0
+ strlen (argv0
);
1013 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
1017 xmalloc_set_program_name (progname
);
1021 /* Unlock the stdio streams. */
1022 unlock_std_streams ();
1024 gcc_init_libintl ();
1026 identifier_to_locale_alloc
= alloc_for_identifier_to_locale
;
1027 identifier_to_locale_free
= ggc_free
;
1029 /* Initialize the diagnostics reporting machinery, so option parsing
1030 can give warnings and errors. */
1031 diagnostic_initialize (global_dc
, N_OPTS
);
1032 global_dc
->lang_mask
= lang_hooks
.option_lang_mask ();
1033 /* Set a default printer. Language specific initializations will
1034 override it later. */
1035 tree_diagnostics_defaults (global_dc
);
1037 global_dc
->show_caret
1038 = global_options_init
.x_flag_diagnostics_show_caret
;
1039 global_dc
->show_labels_p
1040 = global_options_init
.x_flag_diagnostics_show_labels
;
1041 global_dc
->show_line_numbers_p
1042 = global_options_init
.x_flag_diagnostics_show_line_numbers
;
1044 = global_options_init
.x_flag_diagnostics_show_cwe
;
1045 global_dc
->path_format
1046 = (enum diagnostic_path_format
)global_options_init
.x_flag_diagnostics_path_format
;
1047 global_dc
->show_path_depths
1048 = global_options_init
.x_flag_diagnostics_show_path_depths
;
1049 global_dc
->show_option_requested
1050 = global_options_init
.x_flag_diagnostics_show_option
;
1051 global_dc
->min_margin_width
1052 = global_options_init
.x_diagnostics_minimum_margin_width
;
1053 global_dc
->show_column
1054 = global_options_init
.x_flag_show_column
;
1055 global_dc
->internal_error
= internal_error_function
;
1056 global_dc
->option_enabled
= option_enabled
;
1057 global_dc
->option_state
= &global_options
;
1058 global_dc
->option_name
= option_name
;
1059 global_dc
->get_option_url
= get_option_url
;
1063 /* Trap fatal signals, e.g. SIGSEGV, and convert them to ICE messages. */
1065 signal (SIGSEGV
, crash_signal
);
1068 signal (SIGILL
, crash_signal
);
1071 signal (SIGBUS
, crash_signal
);
1074 signal (SIGABRT
, crash_signal
);
1076 #if defined SIGIOT && (!defined SIGABRT || SIGABRT != SIGIOT)
1077 signal (SIGIOT
, crash_signal
);
1080 signal (SIGFPE
, crash_signal
);
1083 /* Other host-specific signal setup. */
1084 (*host_hooks
.extra_signals
)();
1087 /* Initialize the garbage-collector, string pools and tree type hash
1091 input_location
= UNKNOWN_LOCATION
;
1092 line_table
= ggc_alloc
<line_maps
> ();
1093 linemap_init (line_table
, BUILTINS_LOCATION
);
1094 line_table
->reallocator
= realloc_for_line_map
;
1095 line_table
->round_alloc_size
= ggc_round_alloc_size
;
1096 line_table
->default_range_bits
= 5;
1099 /* Initialize register usage now so switches may override. */
1102 /* Create the singleton holder for global state. This creates the
1104 g
= new gcc::context ();
1106 /* Allow languages and middle-end to register their dumps before the
1107 optimization passes. */
1108 g
->get_dumps ()->register_dumps ();
1110 /* Create the passes. */
1111 g
->set_passes (new gcc::pass_manager (g
));
1113 symtab
= new (ggc_alloc
<symbol_table
> ()) symbol_table ();
1115 statistics_early_init ();
1116 debuginfo_early_init ();
1119 /* Return true if the current target supports -fsection-anchors. */
1122 target_supports_section_anchors_p (void)
1124 if (targetm
.min_anchor_offset
== 0 && targetm
.max_anchor_offset
== 0)
1127 if (targetm
.asm_out
.output_anchor
== NULL
)
1133 /* Parse "N[:M][:...]" into struct align_flags A.
1134 VALUES contains parsed values (in reverse order), all processed
1135 values are popped. */
1138 read_log_maxskip (auto_vec
<unsigned> &values
, align_flags_tuple
*a
)
1140 unsigned n
= values
.pop ();
1142 a
->log
= floor_log2 (n
* 2 - 1);
1144 if (values
.is_empty ())
1145 a
->maxskip
= n
? n
- 1 : 0;
1148 unsigned m
= values
.pop ();
1149 /* -falign-foo=N:M means M-1 max bytes of padding, not M. */
1155 /* Normalize the tuple. */
1159 /* Parse "N[:M[:N2[:M2]]]" string FLAG into a pair of struct align_flags. */
1162 parse_N_M (const char *flag
, align_flags
&a
)
1166 static hash_map
<nofree_string_hash
, align_flags
> cache
;
1167 align_flags
*entry
= cache
.get (flag
);
1174 auto_vec
<unsigned> result_values
;
1175 bool r
= parse_and_check_align_values (flag
, NULL
, result_values
, false,
1180 /* Reverse values for easier manipulation. */
1181 result_values
.reverse ();
1183 read_log_maxskip (result_values
, &a
.levels
[0]);
1184 if (!result_values
.is_empty ())
1185 read_log_maxskip (result_values
, &a
.levels
[1]);
1189 /* N2[:M2] is not specified. This arch has a default for N2.
1190 Before -falign-foo=N:M:N2:M2 was introduced, x86 had a tweak.
1191 -falign-functions=N with N > 8 was adding secondary alignment.
1192 -falign-functions=10 was emitting this before every function:
1195 Now this behavior (and more) can be explicitly requested:
1196 -falign-functions=16:10:8
1197 Retain old behavior if N2 is missing: */
1199 int align
= 1 << a
.levels
[0].log
;
1200 int subalign
= 1 << SUBALIGN_LOG
;
1202 if (a
.levels
[0].log
> SUBALIGN_LOG
1203 && a
.levels
[0].maxskip
>= subalign
- 1)
1205 /* Set N2 unless subalign can never have any effect. */
1206 if (align
> a
.levels
[0].maxskip
+ 1)
1208 a
.levels
[1].log
= SUBALIGN_LOG
;
1209 a
.levels
[1].normalize ();
1215 /* Cache seen value. */
1216 cache
.put (flag
, a
);
1220 /* Process -falign-foo=N[:M[:N2[:M2]]] options. */
1223 parse_alignment_opts (void)
1225 parse_N_M (str_align_loops
, align_loops
);
1226 parse_N_M (str_align_jumps
, align_jumps
);
1227 parse_N_M (str_align_labels
, align_labels
);
1228 parse_N_M (str_align_functions
, align_functions
);
1231 /* Process the options that have been parsed. */
1233 process_options (void)
1235 const char *language_string
= lang_hooks
.name
;
1236 /* Just in case lang_hooks.post_options ends up calling a debug_hook.
1237 This can happen with incorrect pre-processed input. */
1238 debug_hooks
= &do_nothing_debug_hooks
;
1240 maximum_field_alignment
= initial_max_fld_align
* BITS_PER_UNIT
;
1242 /* Allow the front end to perform consistency checks and do further
1243 initialization based on the command line options. This hook also
1244 sets the original filename if appropriate (e.g. foo.i -> foo.c)
1245 so we can correctly initialize debug output. */
1246 no_backend
= lang_hooks
.post_options (&main_input_filename
);
1248 /* Some machines may reject certain combinations of options. */
1249 location_t saved_location
= input_location
;
1250 input_location
= UNKNOWN_LOCATION
;
1251 targetm
.target_option
.override ();
1252 input_location
= saved_location
;
1254 if (flag_diagnostics_generate_patch
)
1255 global_dc
->edit_context_ptr
= new edit_context ();
1257 /* Avoid any informative notes in the second run of -fcompare-debug. */
1258 if (flag_compare_debug
)
1259 diagnostic_inhibit_notes (global_dc
);
1261 if (flag_section_anchors
&& !target_supports_section_anchors_p ())
1263 warning_at (UNKNOWN_LOCATION
, OPT_fsection_anchors
,
1264 "this target does not support %qs",
1265 "-fsection-anchors");
1266 flag_section_anchors
= 0;
1269 if (flag_short_enums
== 2)
1270 flag_short_enums
= targetm
.default_short_enums ();
1272 /* Set aux_base_name if not already set. */
1275 else if (dump_base_name
)
1277 const char *name
= dump_base_name
;
1280 if (dump_base_ext
&& (len
= strlen (dump_base_ext
))
1281 && (nlen
= strlen (name
)) && nlen
> len
1282 && strcmp (name
+ nlen
- len
, dump_base_ext
) == 0)
1284 char *p
= xstrndup (name
, nlen
- len
);
1288 aux_base_name
= name
;
1291 aux_base_name
= "gccaux";
1295 || flag_loop_nest_optimize
1296 || flag_graphite_identity
1297 || flag_loop_parallelize_all
)
1298 sorry ("Graphite loop optimizations cannot be used (isl is not available) "
1299 "(%<-fgraphite%>, %<-fgraphite-identity%>, "
1300 "%<-floop-nest-optimize%>, %<-floop-parallelize-all%>)");
1303 if (flag_cf_protection
!= CF_NONE
1304 && !(flag_cf_protection
& CF_SET
))
1306 if (flag_cf_protection
== CF_FULL
)
1308 error_at (UNKNOWN_LOCATION
,
1309 "%<-fcf-protection=full%> is not supported for this "
1311 flag_cf_protection
= CF_NONE
;
1313 if (flag_cf_protection
== CF_BRANCH
)
1315 error_at (UNKNOWN_LOCATION
,
1316 "%<-fcf-protection=branch%> is not supported for this "
1318 flag_cf_protection
= CF_NONE
;
1320 if (flag_cf_protection
== CF_RETURN
)
1322 error_at (UNKNOWN_LOCATION
,
1323 "%<-fcf-protection=return%> is not supported for this "
1325 flag_cf_protection
= CF_NONE
;
1329 /* One region RA really helps to decrease the code size. */
1330 if (flag_ira_region
== IRA_REGION_AUTODETECT
)
1332 = optimize_size
|| !optimize
? IRA_REGION_ONE
: IRA_REGION_MIXED
;
1334 if (!abi_version_at_least (2))
1336 /* -fabi-version=1 support was removed after GCC 4.9. */
1337 error_at (UNKNOWN_LOCATION
,
1338 "%<-fabi-version=1%> is no longer supported");
1339 flag_abi_version
= 2;
1342 /* web and rename-registers help when run after loop unrolling. */
1343 if (flag_web
== AUTODETECT_VALUE
)
1344 flag_web
= flag_unroll_loops
;
1346 if (flag_rename_registers
== AUTODETECT_VALUE
)
1347 flag_rename_registers
= flag_unroll_loops
;
1349 if (flag_non_call_exceptions
)
1350 flag_asynchronous_unwind_tables
= 1;
1351 if (flag_asynchronous_unwind_tables
)
1352 flag_unwind_tables
= 1;
1354 if (flag_value_profile_transformations
)
1355 flag_profile_values
= 1;
1357 /* Warn about options that are not supported on this machine. */
1358 #ifndef INSN_SCHEDULING
1359 if (flag_schedule_insns
|| flag_schedule_insns_after_reload
)
1360 warning_at (UNKNOWN_LOCATION
, 0,
1361 "instruction scheduling not supported on this target machine");
1363 if (!DELAY_SLOTS
&& flag_delayed_branch
)
1364 warning_at (UNKNOWN_LOCATION
, 0,
1365 "this target machine does not have delayed branches");
1367 user_label_prefix
= USER_LABEL_PREFIX
;
1368 if (flag_leading_underscore
!= -1)
1370 /* If the default prefix is more complicated than "" or "_",
1371 issue a warning and ignore this option. */
1372 if (user_label_prefix
[0] == 0 ||
1373 (user_label_prefix
[0] == '_' && user_label_prefix
[1] == 0))
1375 user_label_prefix
= flag_leading_underscore
? "_" : "";
1378 warning_at (UNKNOWN_LOCATION
, 0,
1379 "%<-f%sleading-underscore%> not supported on this "
1380 "target machine", flag_leading_underscore
? "" : "no-");
1383 /* If we are in verbose mode, write out the version and maybe all the
1384 option flags in use. */
1387 print_version (stderr
, "", true);
1390 fputs ("options passed: ", stderr
);
1391 char *cmdline
= gen_command_line_string (save_decoded_options
,
1392 save_decoded_options_count
);
1394 fputs (cmdline
, stderr
);
1396 fputc ('\n', stderr
);
1400 if (flag_syntax_only
)
1402 write_symbols
= NO_DEBUG
;
1408 if (debug_info_level
== DINFO_LEVEL_NONE
)
1410 debug_info_level
= DINFO_LEVEL_NORMAL
;
1412 if (write_symbols
== NO_DEBUG
)
1413 write_symbols
= PREFERRED_DEBUGGING_TYPE
;
1416 debug_info_level
= DINFO_LEVEL_NONE
;
1419 /* CTF is supported for only C at this time.
1420 Compiling with -flto results in frontend language of GNU GIMPLE. */
1422 && ctf_debug_info_level
> CTFINFO_LEVEL_NONE
)
1424 inform (UNKNOWN_LOCATION
,
1425 "CTF debug info requested, but not supported for %qs frontend",
1427 ctf_debug_info_level
= CTFINFO_LEVEL_NONE
;
1430 if (flag_dump_final_insns
&& !flag_syntax_only
&& !no_backend
)
1432 FILE *final_output
= fopen (flag_dump_final_insns
, "w");
1435 error_at (UNKNOWN_LOCATION
,
1436 "could not open final insn dump file %qs: %m",
1437 flag_dump_final_insns
);
1438 flag_dump_final_insns
= NULL
;
1440 else if (fclose (final_output
))
1442 error_at (UNKNOWN_LOCATION
,
1443 "could not close zeroed insn dump file %qs: %m",
1444 flag_dump_final_insns
);
1445 flag_dump_final_insns
= NULL
;
1449 /* A lot of code assumes write_symbols == NO_DEBUG if the debugging
1451 if (debug_info_level
== DINFO_LEVEL_NONE
1452 && ctf_debug_info_level
== CTFINFO_LEVEL_NONE
)
1453 write_symbols
= NO_DEBUG
;
1455 if (write_symbols
== NO_DEBUG
)
1457 #if defined(DBX_DEBUGGING_INFO)
1458 else if (write_symbols
== DBX_DEBUG
)
1459 debug_hooks
= &dbx_debug_hooks
;
1461 #if defined(XCOFF_DEBUGGING_INFO)
1462 else if (write_symbols
== XCOFF_DEBUG
)
1463 debug_hooks
= &xcoff_debug_hooks
;
1465 #ifdef DWARF2_DEBUGGING_INFO
1466 else if (dwarf_debuginfo_p ())
1467 debug_hooks
= &dwarf2_debug_hooks
;
1469 #ifdef CTF_DEBUGGING_INFO
1470 else if (ctf_debuginfo_p ())
1471 debug_hooks
= &dwarf2_debug_hooks
;
1473 #ifdef BTF_DEBUGGING_INFO
1474 else if (btf_debuginfo_p ())
1475 debug_hooks
= &dwarf2_debug_hooks
;
1477 #ifdef VMS_DEBUGGING_INFO
1478 else if (write_symbols
== VMS_DEBUG
|| write_symbols
== VMS_AND_DWARF2_DEBUG
)
1479 debug_hooks
= &vmsdbg_debug_hooks
;
1481 #ifdef DWARF2_LINENO_DEBUGGING_INFO
1482 else if (write_symbols
== DWARF2_DEBUG
)
1483 debug_hooks
= &dwarf2_lineno_debug_hooks
;
1487 gcc_assert (debug_set_count (write_symbols
) <= 1);
1488 error_at (UNKNOWN_LOCATION
,
1489 "target system does not support the %qs debug format",
1490 debug_type_names
[debug_set_to_format (write_symbols
)]);
1493 /* We know which debug output will be used so we can set flag_var_tracking
1494 and flag_var_tracking_uninit if the user has not specified them. */
1495 if (debug_info_level
< DINFO_LEVEL_NORMAL
1496 || !dwarf_debuginfo_p ()
1497 || debug_hooks
->var_location
== do_nothing_debug_hooks
.var_location
)
1499 if (flag_var_tracking
== 1
1500 || flag_var_tracking_uninit
== 1)
1502 if (debug_info_level
< DINFO_LEVEL_NORMAL
)
1503 warning_at (UNKNOWN_LOCATION
, 0,
1504 "variable tracking requested, but useless unless "
1505 "producing debug info");
1507 warning_at (UNKNOWN_LOCATION
, 0,
1508 "variable tracking requested, but not supported "
1509 "by this debug format");
1511 flag_var_tracking
= 0;
1512 flag_var_tracking_uninit
= 0;
1515 /* The debug hooks are used to implement -fdump-go-spec because it
1516 gives a simple and stable API for all the information we need to
1518 if (flag_dump_go_spec
!= NULL
)
1519 debug_hooks
= dump_go_spec_init (flag_dump_go_spec
, debug_hooks
);
1521 /* If the user specifically requested variable tracking with tagging
1522 uninitialized variables, we need to turn on variable tracking.
1523 (We already determined above that variable tracking is feasible.) */
1524 if (flag_var_tracking_uninit
== 1)
1525 flag_var_tracking
= 1;
1527 if (flag_var_tracking
== AUTODETECT_VALUE
)
1528 flag_var_tracking
= optimize
>= 1;
1530 if (flag_var_tracking_uninit
== AUTODETECT_VALUE
)
1531 flag_var_tracking_uninit
= flag_var_tracking
;
1533 if (flag_var_tracking_assignments
== AUTODETECT_VALUE
)
1534 flag_var_tracking_assignments
1535 = (flag_var_tracking
1536 && !(flag_selective_scheduling
|| flag_selective_scheduling2
));
1538 if (flag_var_tracking_assignments_toggle
)
1539 flag_var_tracking_assignments
= !flag_var_tracking_assignments
;
1541 if (flag_var_tracking_assignments
&& !flag_var_tracking
)
1542 flag_var_tracking
= flag_var_tracking_assignments
= -1;
1544 if (flag_var_tracking_assignments
1545 && (flag_selective_scheduling
|| flag_selective_scheduling2
))
1546 warning_at (UNKNOWN_LOCATION
, 0,
1547 "var-tracking-assignments changes selective scheduling");
1549 if (debug_nonbind_markers_p
== AUTODETECT_VALUE
)
1550 debug_nonbind_markers_p
1552 && debug_info_level
>= DINFO_LEVEL_NORMAL
1553 && dwarf_debuginfo_p ()
1554 && !(flag_selective_scheduling
|| flag_selective_scheduling2
));
1556 if (dwarf2out_as_loc_support
== AUTODETECT_VALUE
)
1557 dwarf2out_as_loc_support
1558 = dwarf2out_default_as_loc_support ();
1559 if (dwarf2out_as_locview_support
== AUTODETECT_VALUE
)
1560 dwarf2out_as_locview_support
1561 = dwarf2out_default_as_locview_support ();
1563 if (debug_variable_location_views
== AUTODETECT_VALUE
)
1565 debug_variable_location_views
1566 = (flag_var_tracking
1567 && debug_info_level
>= DINFO_LEVEL_NORMAL
1568 && dwarf_debuginfo_p ()
1570 && dwarf2out_as_loc_support
1571 && dwarf2out_as_locview_support
);
1573 else if (debug_variable_location_views
== -1 && dwarf_version
!= 5)
1575 warning_at (UNKNOWN_LOCATION
, 0,
1576 "without %<-gdwarf-5%>, "
1577 "%<-gvariable-location-views=incompat5%> "
1578 "is equivalent to %<-gvariable-location-views%>");
1579 debug_variable_location_views
= 1;
1582 if (debug_internal_reset_location_views
== 2)
1584 debug_internal_reset_location_views
1585 = (debug_variable_location_views
1586 && targetm
.reset_location_view
);
1588 else if (debug_internal_reset_location_views
1589 && !debug_variable_location_views
)
1591 warning_at (UNKNOWN_LOCATION
, 0,
1592 "%<-ginternal-reset-location-views%> is forced disabled "
1593 "without %<-gvariable-location-views%>");
1594 debug_internal_reset_location_views
= 0;
1597 if (debug_inline_points
== AUTODETECT_VALUE
)
1598 debug_inline_points
= debug_variable_location_views
;
1599 else if (debug_inline_points
&& !debug_nonbind_markers_p
)
1601 warning_at (UNKNOWN_LOCATION
, 0,
1602 "%<-ginline-points%> is forced disabled without "
1603 "%<-gstatement-frontiers%>");
1604 debug_inline_points
= 0;
1607 if (flag_tree_cselim
== AUTODETECT_VALUE
)
1609 if (HAVE_conditional_move
)
1610 flag_tree_cselim
= 1;
1612 flag_tree_cselim
= 0;
1615 /* If auxiliary info generation is desired, open the output file.
1616 This goes in the same directory as the source file--unlike
1617 all the other output files. */
1618 if (flag_gen_aux_info
)
1620 aux_info_file
= fopen (aux_info_file_name
, "w");
1621 if (aux_info_file
== 0)
1622 fatal_error (UNKNOWN_LOCATION
,
1623 "cannot open %s: %m", aux_info_file_name
);
1626 if (!targetm_common
.have_named_sections
)
1628 if (flag_function_sections
)
1630 warning_at (UNKNOWN_LOCATION
, 0,
1631 "%<-ffunction-sections%> not supported for this target");
1632 flag_function_sections
= 0;
1634 if (flag_data_sections
)
1636 warning_at (UNKNOWN_LOCATION
, 0,
1637 "%<-fdata-sections%> not supported for this target");
1638 flag_data_sections
= 0;
1642 if (flag_prefetch_loop_arrays
> 0 && !targetm
.code_for_prefetch
)
1644 warning_at (UNKNOWN_LOCATION
, 0,
1645 "%<-fprefetch-loop-arrays%> not supported for this target");
1646 flag_prefetch_loop_arrays
= 0;
1648 else if (flag_prefetch_loop_arrays
> 0 && !targetm
.have_prefetch ())
1650 warning_at (UNKNOWN_LOCATION
, 0,
1651 "%<-fprefetch-loop-arrays%> not supported for this target "
1652 "(try %<-march%> switches)");
1653 flag_prefetch_loop_arrays
= 0;
1656 /* This combination of options isn't handled for i386 targets and doesn't
1657 make much sense anyway, so don't allow it. */
1658 if (flag_prefetch_loop_arrays
> 0 && optimize_size
)
1660 warning_at (UNKNOWN_LOCATION
, 0,
1661 "%<-fprefetch-loop-arrays%> is not supported with %<-Os%>");
1662 flag_prefetch_loop_arrays
= 0;
1665 /* The presence of IEEE signaling NaNs, implies all math can trap. */
1666 if (flag_signaling_nans
)
1667 flag_trapping_math
= 1;
1669 /* We cannot reassociate if we want traps or signed zeros. */
1670 if (flag_associative_math
&& (flag_trapping_math
|| flag_signed_zeros
))
1672 warning_at (UNKNOWN_LOCATION
, 0,
1673 "%<-fassociative-math%> disabled; other options take "
1675 flag_associative_math
= 0;
1678 /* -fstack-clash-protection is not currently supported on targets
1679 where the stack grows up. */
1680 if (flag_stack_clash_protection
&& !STACK_GROWS_DOWNWARD
)
1682 warning_at (UNKNOWN_LOCATION
, 0,
1683 "%<-fstack-clash-protection%> is not supported on targets "
1684 "where the stack grows from lower to higher addresses");
1685 flag_stack_clash_protection
= 0;
1688 /* We cannot support -fstack-check= and -fstack-clash-protection at
1690 if (flag_stack_check
!= NO_STACK_CHECK
&& flag_stack_clash_protection
)
1692 warning_at (UNKNOWN_LOCATION
, 0,
1693 "%<-fstack-check=%> and %<-fstack-clash_protection%> are "
1694 "mutually exclusive; disabling %<-fstack-check=%>");
1695 flag_stack_check
= NO_STACK_CHECK
;
1698 /* Targets must be able to place spill slots at lower addresses. If the
1699 target already uses a soft frame pointer, the transition is trivial. */
1700 if (!FRAME_GROWS_DOWNWARD
&& flag_stack_protect
)
1702 warning_at (UNKNOWN_LOCATION
, 0,
1703 "%<-fstack-protector%> not supported for this target");
1704 flag_stack_protect
= 0;
1706 if (!flag_stack_protect
)
1707 warn_stack_protect
= 0;
1709 /* Address Sanitizer needs porting to each target architecture. */
1711 if ((flag_sanitize
& SANITIZE_ADDRESS
)
1712 && !FRAME_GROWS_DOWNWARD
)
1714 warning_at (UNKNOWN_LOCATION
, 0,
1715 "%<-fsanitize=address%> and %<-fsanitize=kernel-address%> "
1716 "are not supported for this target");
1717 flag_sanitize
&= ~SANITIZE_ADDRESS
;
1720 if ((flag_sanitize
& SANITIZE_USER_ADDRESS
)
1721 && ((targetm
.asan_shadow_offset
== NULL
)
1722 || (targetm
.asan_shadow_offset () == 0)))
1724 warning_at (UNKNOWN_LOCATION
, 0,
1725 "%<-fsanitize=address%> not supported for this target");
1726 flag_sanitize
&= ~SANITIZE_ADDRESS
;
1729 if ((flag_sanitize
& SANITIZE_KERNEL_ADDRESS
)
1730 && (targetm
.asan_shadow_offset
== NULL
1731 && !asan_shadow_offset_set_p ()))
1733 warning_at (UNKNOWN_LOCATION
, 0,
1734 "%<-fsanitize=kernel-address%> with stack protection "
1735 "is not supported without %<-fasan-shadow-offset=%> "
1737 flag_sanitize
&= ~SANITIZE_ADDRESS
;
1740 /* HWAsan requires top byte ignore feature in the backend. */
1741 if (flag_sanitize
& SANITIZE_HWADDRESS
1742 && ! targetm
.memtag
.can_tag_addresses ())
1744 warning_at (UNKNOWN_LOCATION
, 0, "%qs is not supported for this target",
1745 "-fsanitize=hwaddress");
1746 flag_sanitize
&= ~SANITIZE_HWADDRESS
;
1749 HOST_WIDE_INT patch_area_size
, patch_area_start
;
1750 parse_and_check_patch_area (flag_patchable_function_entry
, false,
1751 &patch_area_size
, &patch_area_start
);
1753 /* Do not use IPA optimizations for register allocation if profiler is active
1754 or patchable function entries are inserted for run-time instrumentation
1755 or port does not emit prologue and epilogue as RTL. */
1756 if (profile_flag
|| patch_area_size
1757 || !targetm
.have_prologue () || !targetm
.have_epilogue ())
1760 /* Enable -Werror=coverage-mismatch when -Werror and -Wno-error
1761 have not been set. */
1762 if (!global_options_set
.x_warnings_are_errors
)
1764 if (warn_coverage_mismatch
1765 && (global_dc
->classify_diagnostic
[OPT_Wcoverage_mismatch
] ==
1767 diagnostic_classify_diagnostic (global_dc
, OPT_Wcoverage_mismatch
,
1768 DK_ERROR
, UNKNOWN_LOCATION
);
1769 if (warn_coverage_invalid_linenum
1770 && (global_dc
->classify_diagnostic
[OPT_Wcoverage_invalid_line_number
] ==
1772 diagnostic_classify_diagnostic (global_dc
, OPT_Wcoverage_invalid_line_number
,
1773 DK_ERROR
, UNKNOWN_LOCATION
);
1776 /* Save the current optimization options. */
1777 optimization_default_node
1778 = build_optimization_node (&global_options
, &global_options_set
);
1779 optimization_current_node
= optimization_default_node
;
1781 if (flag_checking
>= 2)
1782 hash_table_sanitize_eq_limit
1783 = param_hash_table_verification_limit
;
1785 if (flag_large_source_files
)
1786 line_table
->default_range_bits
= 0;
1788 /* Please don't change global_options after this point, those changes won't
1789 be reflected in optimization_{default,current}_node. */
1792 /* This function can be called multiple times to reinitialize the compiler
1793 back end when register classes or instruction sets have changed,
1794 before each function. */
1796 backend_init_target (void)
1798 /* This depends on stack_pointer_rtx. */
1799 init_fake_stack_mems ();
1801 /* Sets static_base_value[HARD_FRAME_POINTER_REGNUM], which is
1803 init_alias_target ();
1805 /* Depends on HARD_FRAME_POINTER_REGNUM. */
1809 /* Depends on the enabled attribute. */
1812 /* The following initialization functions need to generate rtl, so
1813 provide a dummy function context for them. */
1814 init_dummy_function_start ();
1816 /* rtx_cost is mode-dependent, so cached values need to be recomputed
1817 on a mode change. */
1819 init_lower_subreg ();
1822 init_expr_target ();
1825 /* We may need to recompute regno_save_code[] and regno_restore_code[]
1826 after a mode change as well. */
1827 caller_save_initialized_p
= false;
1829 expand_dummy_function_end ();
1832 /* Initialize the compiler back end. This function is called only once,
1833 when starting the compiler. */
1840 init_inline_once ();
1841 init_varasm_once ();
1842 save_register_info ();
1844 /* Middle end needs this initialization for default mem attributes
1845 used by early calls to make_decl_rtl. */
1848 /* Middle end needs this initialization for mode tables used to assign
1849 modes to vector variables. */
1853 /* Initialize things that are both lang-dependent and target-dependent.
1854 This function can be called more than once if target parameters change. */
1856 lang_dependent_init_target (void)
1858 /* This creates various _DECL nodes, so needs to be called after the
1859 front end is initialized. It also depends on the HAVE_xxx macros
1860 generated from the target machine description. */
1863 gcc_assert (!this_target_rtl
->target_specific_initialized
);
1866 /* Perform initializations that are lang-dependent or target-dependent.
1867 but matters only for late optimizations and RTL generation. */
1869 static int rtl_initialized
;
1872 initialize_rtl (void)
1874 auto_timevar
tv (g_timer
, TV_INITIALIZE_RTL
);
1876 /* Initialization done just once per compilation, but delayed
1877 till code generation. */
1878 if (!rtl_initialized
)
1880 rtl_initialized
= true;
1882 /* Target specific RTL backend initialization. */
1883 if (!this_target_rtl
->target_specific_initialized
)
1885 backend_init_target ();
1886 this_target_rtl
->target_specific_initialized
= true;
1890 /* Language-dependent initialization. Returns nonzero on success. */
1892 lang_dependent_init (const char *name
)
1894 location_t save_loc
= input_location
;
1895 if (!dump_base_name
)
1897 dump_base_name
= name
&& name
[0] ? name
: "gccdump";
1899 /* We do not want to derive a non-empty dumpbase-ext from an
1900 explicit -dumpbase argument, only from a defaulted
1904 const char *base
= lbasename (dump_base_name
);
1905 const char *ext
= strrchr (base
, '.');
1907 dump_base_ext
= ext
;
1911 /* Other front-end initialization. */
1912 input_location
= BUILTINS_LOCATION
;
1913 if (lang_hooks
.init () == 0)
1915 input_location
= save_loc
;
1919 init_asm_output (name
);
1921 if (!flag_generate_lto
&& !flag_compare_debug
)
1923 /* If stack usage information is desired, open the output file. */
1924 if (flag_stack_usage
)
1925 stack_usage_file
= open_auxiliary_file ("su");
1927 /* If call graph information is desired, open the output file. */
1928 if (flag_callgraph_info
)
1930 callgraph_info_file
= open_auxiliary_file ("ci");
1931 /* Write the file header. */
1932 fprintf (callgraph_info_file
,
1933 "graph: { title: \"%s\"\n", main_input_filename
);
1934 bitmap_obstack_initialize (NULL
);
1935 callgraph_info_external_printed
= BITMAP_ALLOC (NULL
);
1939 flag_stack_usage
= flag_callgraph_info
= false;
1942 /* This creates various _DECL nodes, so needs to be called after the
1943 front end is initialized. */
1946 /* Do the target-specific parts of the initialization. */
1947 lang_dependent_init_target ();
1951 /* If dbx symbol table desired, initialize writing it and output the
1952 predefined types. */
1953 timevar_push (TV_SYMOUT
);
1955 /* Now we have the correct original filename, we can initialize
1957 (*debug_hooks
->init
) (name
);
1959 timevar_pop (TV_SYMOUT
);
1966 /* Reinitialize everything when target parameters, such as register usage,
1969 target_reinit (void)
1971 struct rtl_data saved_x_rtl
;
1972 rtx
*saved_regno_reg_rtx
;
1973 tree saved_optimization_current_node
;
1974 struct target_optabs
*saved_this_fn_optabs
;
1976 /* Temporarily switch to the default optimization node, so that
1977 *this_target_optabs is set to the default, not reflecting
1978 whatever a previous function used for the optimize
1980 saved_optimization_current_node
= optimization_current_node
;
1981 saved_this_fn_optabs
= this_fn_optabs
;
1982 if (saved_optimization_current_node
!= optimization_default_node
)
1984 optimization_current_node
= optimization_default_node
;
1985 cl_optimization_restore
1986 (&global_options
, &global_options_set
,
1987 TREE_OPTIMIZATION (optimization_default_node
));
1989 this_fn_optabs
= this_target_optabs
;
1991 /* Save *crtl and regno_reg_rtx around the reinitialization
1992 to allow target_reinit being called even after prepare_function_start. */
1993 saved_regno_reg_rtx
= regno_reg_rtx
;
1994 if (saved_regno_reg_rtx
)
1996 saved_x_rtl
= *crtl
;
1997 memset (crtl
, '\0', sizeof (*crtl
));
1998 regno_reg_rtx
= NULL
;
2001 this_target_rtl
->target_specific_initialized
= false;
2003 /* This initializes hard_frame_pointer, and calls init_reg_modes_target()
2004 to initialize reg_raw_mode[]. */
2007 /* This invokes target hooks to set fixed_reg[] etc, which is
2011 /* Reinitialize lang-dependent parts. */
2012 lang_dependent_init_target ();
2014 /* Restore the original optimization node. */
2015 if (saved_optimization_current_node
!= optimization_default_node
)
2017 optimization_current_node
= saved_optimization_current_node
;
2018 cl_optimization_restore (&global_options
, &global_options_set
,
2019 TREE_OPTIMIZATION (optimization_current_node
));
2021 this_fn_optabs
= saved_this_fn_optabs
;
2023 /* Restore regno_reg_rtx at the end, as free_after_compilation from
2024 expand_dummy_function_end clears it. */
2025 if (saved_regno_reg_rtx
)
2027 *crtl
= saved_x_rtl
;
2028 regno_reg_rtx
= saved_regno_reg_rtx
;
2029 saved_regno_reg_rtx
= NULL
;
2034 dump_memory_report (const char *header
)
2036 /* Print significant header. */
2037 fputc ('\n', stderr
);
2038 for (unsigned i
= 0; i
< 80; i
++)
2039 fputc ('#', stderr
);
2040 fprintf (stderr
, "\n# %-77s#\n", header
);
2041 for (unsigned i
= 0; i
< 80; i
++)
2042 fputc ('#', stderr
);
2043 fputs ("\n\n", stderr
);
2045 dump_line_table_statistics ();
2046 ggc_print_statistics ();
2047 stringpool_statistics ();
2048 dump_tree_statistics ();
2049 dump_gimple_statistics ();
2050 dump_rtx_statistics ();
2051 dump_alloc_pool_statistics ();
2052 dump_bitmap_statistics ();
2053 dump_hash_table_loc_statistics ();
2054 dump_vec_loc_statistics ();
2055 dump_ggc_loc_statistics ();
2056 dump_alias_stats (stderr
);
2057 dump_pta_stats (stderr
);
2060 /* Clean up: close opened files, etc. */
2063 finalize (bool no_backend
)
2065 /* Close the dump files. */
2066 if (flag_gen_aux_info
)
2068 fclose (aux_info_file
);
2069 aux_info_file
= NULL
;
2071 unlink (aux_info_file_name
);
2074 /* Close non-debugging input and output files. Take special care to note
2075 whether fclose returns an error, since the pages might still be on the
2076 buffer chain while the file is open. */
2080 if (ferror (asm_out_file
) != 0)
2081 fatal_error (input_location
, "error writing to %s: %m", asm_file_name
);
2082 if (fclose (asm_out_file
) != 0)
2083 fatal_error (input_location
, "error closing %s: %m", asm_file_name
);
2084 asm_out_file
= NULL
;
2087 if (stack_usage_file
)
2089 fclose (stack_usage_file
);
2090 stack_usage_file
= NULL
;
2093 if (callgraph_info_file
)
2095 fputs ("}\n", callgraph_info_file
);
2096 fclose (callgraph_info_file
);
2097 callgraph_info_file
= NULL
;
2098 BITMAP_FREE (callgraph_info_external_printed
);
2099 bitmap_obstack_release (NULL
);
2103 coverage_remove_note_file ();
2110 g
->get_passes ()->finish_optimization_passes ();
2116 dump_memory_report ("Final");
2119 dump_profile_report ();
2121 if (flag_dbg_cnt_list
)
2122 dbg_cnt_list_all_counters ();
2124 /* Language-specific end of compilation actions. */
2125 lang_hooks
.finish ();
2129 standard_type_bitsize (int bitsize
)
2131 /* As a special exception, we always want __int128 enabled if possible. */
2134 if (bitsize
== CHAR_TYPE_SIZE
2135 || bitsize
== SHORT_TYPE_SIZE
2136 || bitsize
== INT_TYPE_SIZE
2137 || bitsize
== LONG_TYPE_SIZE
2138 || bitsize
== LONG_LONG_TYPE_SIZE
)
2143 /* Initialize the compiler, and compile the input file. */
2149 /* Don't do any more if an error has already occurred. */
2154 timevar_start (TV_PHASE_SETUP
);
2156 if (flag_save_optimization_record
)
2158 dump_context::get ().set_json_writer (new optrecord_json_writer ());
2161 /* This must be run always, because it is needed to compute the FP
2162 predefined macros, such as __LDBL_MAX__, for targets using non
2163 default FP formats. */
2164 init_adjust_machine_modes ();
2165 init_derived_machine_modes ();
2167 /* This must happen after the backend has a chance to process
2168 command line options, but before the parsers are
2170 for (i
= 0; i
< NUM_INT_N_ENTS
; i
++)
2171 if (targetm
.scalar_mode_supported_p (int_n_data
[i
].m
)
2172 && ! standard_type_bitsize (int_n_data
[i
].bitsize
))
2173 int_n_enabled_p
[i
] = true;
2175 int_n_enabled_p
[i
] = false;
2177 /* Initialize mpfrs exponent range. This is important to get
2178 underflow/overflow in a reasonable timeframe. */
2182 FOR_EACH_MODE_IN_CLASS (mode
, MODE_FLOAT
)
2183 if (SCALAR_FLOAT_MODE_P (mode
))
2185 const real_format
*fmt
= REAL_MODE_FORMAT (mode
);
2188 /* fmt->emin - fmt->p + 1 should be enough but the
2189 back-and-forth dance in real_to_decimal_for_mode we
2190 do for checking fails due to rounding effects then. */
2191 if ((fmt
->emin
- fmt
->p
) < min_exp
)
2192 min_exp
= fmt
->emin
- fmt
->p
;
2193 if (fmt
->emax
> max_exp
)
2194 max_exp
= fmt
->emax
;
2197 /* E.g. mpc_norm assumes it can square a number without bothering with
2198 with range scaling, so until that is fixed, double the minimum
2199 and maximum exponents, plus add some buffer for arithmetics
2200 on the squared numbers. */
2201 if (mpfr_set_emin (2 * (min_exp
- 1))
2202 || mpfr_set_emax (2 * (max_exp
+ 1)))
2203 sorry ("mpfr not configured to handle all floating modes");
2205 /* Set up the back-end if requested. */
2209 /* Language-dependent initialization. Returns true on success. */
2210 if (lang_dependent_init (main_input_filename
))
2212 /* Initialize yet another pass. */
2214 ggc_protect_identifiers
= true;
2216 symtab
->initialize ();
2217 init_final (main_input_filename
);
2218 coverage_init (aux_base_name
);
2221 invoke_plugin_callbacks (PLUGIN_START_UNIT
, NULL
);
2223 timevar_stop (TV_PHASE_SETUP
);
2229 timevar_stop (TV_PHASE_SETUP
);
2232 timevar_start (TV_PHASE_FINALIZE
);
2234 finalize (no_backend
);
2236 timevar_stop (TV_PHASE_FINALIZE
);
2240 toplev::toplev (timer
*external_timer
,
2242 : m_use_TV_TOTAL (external_timer
== NULL
),
2243 m_init_signals (init_signals
)
2246 g_timer
= external_timer
;
2251 if (g_timer
&& m_use_TV_TOTAL
)
2253 g_timer
->stop (TV_TOTAL
);
2254 g_timer
->print (stderr
);
2260 /* Potentially call timevar_init (which will create g_timevars if it
2261 doesn't already exist). */
2264 toplev::start_timevars ()
2266 if (time_report
|| !quiet_flag
|| flag_detailed_statistics
)
2269 timevar_start (TV_TOTAL
);
2272 /* Handle -fself-test. */
2275 toplev::run_self_tests ()
2279 error_at (UNKNOWN_LOCATION
, "self-tests incompatible with %<-E%>");
2283 /* Reset some state. */
2284 input_location
= UNKNOWN_LOCATION
;
2285 bitmap_obstack_initialize (NULL
);
2287 /* Run the tests; any failures will lead to an abort of the process.
2288 Use "make selftests-gdb" to run under the debugger. */
2289 ::selftest::run_tests ();
2292 bitmap_obstack_release (NULL
);
2294 inform (UNKNOWN_LOCATION
, "self-tests are not enabled in this build");
2295 #endif /* #if CHECKING_P */
2298 /* Entry point of cc1, cc1plus, jc1, f771, etc.
2299 Exit code is FATAL_EXIT_CODE if can't open files or if there were
2300 any errors, or SUCCESS_EXIT_CODE if compilation succeeded.
2302 It is not safe to call this function more than once. */
2305 toplev::main (int argc
, char **argv
)
2307 /* Parsing and gimplification sometimes need quite large stack.
2308 Increase stack size limits if possible. */
2309 stack_limit_increase (64 * 1024 * 1024);
2311 expandargv (&argc
, &argv
);
2313 /* Initialization of GCC's environment, and diagnostics. */
2314 general_init (argv
[0], m_init_signals
);
2316 /* One-off initialization of options that does not need to be
2317 repeated when options are added for particular functions. */
2318 init_options_once ();
2319 init_opts_obstack ();
2321 /* Initialize global options structures; this must be repeated for
2322 each structure used for parsing options. */
2323 init_options_struct (&global_options
, &global_options_set
);
2324 lang_hooks
.init_options_struct (&global_options
);
2326 /* Init GGC heuristics must be caller after we initialize
2328 init_ggc_heuristics ();
2330 /* Convert the options to an array. */
2331 decode_cmdline_options_to_array_default_mask (argc
,
2332 CONST_CAST2 (const char **,
2334 &save_decoded_options
,
2335 &save_decoded_options_count
);
2337 /* Perform language-specific options initialization. */
2338 lang_hooks
.init_options (save_decoded_options_count
, save_decoded_options
);
2340 /* Parse the options and do minimal processing; basically just
2341 enough to default flags appropriately. */
2342 decode_options (&global_options
, &global_options_set
,
2343 save_decoded_options
, save_decoded_options_count
,
2344 UNKNOWN_LOCATION
, global_dc
,
2345 targetm
.target_option
.override
);
2347 handle_common_deferred_options ();
2351 initialize_plugins ();
2354 print_version (stderr
, "", true);
2357 print_plugins_help (stderr
, "");
2359 /* Exit early if we can (e.g. -help). */
2360 if (!exit_after_options
)
2367 if (warningcount
|| errorcount
|| werrorcount
)
2368 print_ignored_options ();
2373 /* Invoke registered plugin callbacks if any. Some plugins could
2374 emit some diagnostics here. */
2375 invoke_plugin_callbacks (PLUGIN_FINISH
, NULL
);
2377 if (flag_diagnostics_generate_patch
)
2379 gcc_assert (global_dc
->edit_context_ptr
);
2382 pp_show_color (&pp
) = pp_show_color (global_dc
->printer
);
2383 global_dc
->edit_context_ptr
->print_diff (&pp
, true);
2387 diagnostic_finish (global_dc
);
2389 finalize_plugins ();
2391 after_memory_report
= true;
2393 if (seen_error () || werrorcount
)
2394 return (FATAL_EXIT_CODE
);
2396 return (SUCCESS_EXIT_CODE
);
2399 /* For those that want to, this function aims to clean up enough state that
2400 you can call toplev::main again. */
2402 toplev::finalize (void)
2404 rtl_initialized
= false;
2405 this_target_rtl
->target_specific_initialized
= false;
2407 /* Needs to be called before cgraph_c_finalize since it uses symtab. */
2408 ipa_reference_c_finalize ();
2409 ipa_fnsummary_c_finalize ();
2410 ipa_modref_c_finalize ();
2411 ipa_edge_modifications_finalize ();
2413 cgraph_c_finalize ();
2414 cgraphunit_c_finalize ();
2415 symtab_thunks_cc_finalize ();
2416 dwarf2out_c_finalize ();
2418 ipa_cp_c_finalize ();
2419 ira_costs_c_finalize ();
2421 /* save_decoded_options uses opts_obstack, so these must
2422 be cleaned up together. */
2423 obstack_free (&opts_obstack
, NULL
);
2424 XDELETEVEC (save_decoded_options
);
2425 save_decoded_options
= NULL
;
2426 save_decoded_options_count
= 0;
2428 /* Clean up the context (and pass_manager etc). */