toplev.cc File Reference

#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "backend.h"
#include "target.h"
#include "rtl.h"
#include "tree.h"
#include "gimple.h"
#include "alloc-pool.h"
#include "timevar.h"
#include "memmodel.h"
#include "tm_p.h"
#include "optabs-libfuncs.h"
#include "insn-config.h"
#include "ira.h"
#include "recog.h"
#include "cgraph.h"
#include "coverage.h"
#include "diagnostic.h"
#include "varasm.h"
#include "tree-inline.h"
#include "realmpfr.h"
#include "version.h"
#include "flags.h"
#include "insn-attr.h"
#include "output.h"
#include "toplev.h"
#include "expr.h"
#include "intl.h"
#include "tree-diagnostic.h"
#include "reload.h"
#include "lra.h"
#include "dwarf2asm.h"
#include "debug.h"
#include "common/common-target.h"
#include "langhooks.h"
#include "cfgloop.h"
#include "hosthooks.h"
#include "opts.h"
#include "opts-diagnostic.h"
#include "stringpool.h"
#include "attribs.h"
#include "asan.h"
#include "tsan.h"
#include "plugin.h"
#include "context.h"
#include "pass_manager.h"
#include "auto-profile.h"
#include "dwarf2out.h"
#include "ipa-reference.h"
#include "symbol-summary.h"
#include "tree-vrp.h"
#include "sreal.h"
#include "ipa-cp.h"
#include "ipa-prop.h"
#include "ipa-utils.h"
#include "gcse.h"
#include "omp-offload.h"
#include "edit-context.h"
#include "tree-pass.h"
#include "dumpfile.h"
#include "ipa-fnsummary.h"
#include "dump-context.h"
#include "print-tree.h"
#include "optinfo-emit-json.h"
#include "ipa-modref-tree.h"
#include "ipa-modref.h"
#include "ipa-param-manipulation.h"
#include "dbgcnt.h"
#include "gcc-urlifier.h"
#include "unique-argv.h"
#include "selftest.h"

Macros
#define	INCLUDE_MEMORY
#define	this_target_flag_state   (&default_target_flag_state)
#define	__VERSION__   "[?]"
#define	GCC_GMP_STRINGIFY_VERSION3(X)
#define	GCC_GMP_STRINGIFY_VERSION2(X)
#define	GCC_GMP_VERSION_NUM(X, Y, Z)
#define	GCC_GMP_VERSION    GCC_GMP_VERSION_NUM(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, __GNU_MP_VERSION_PATCHLEVEL)
#define	GCC_GMP_STRINGIFY_VERSION
#define	INDIRECT_CALL_NAME   "__indirect_call"

Functions
static void	general_init (const char *, bool, unique_argv original_argv)
static void	backend_init (void)
static int	lang_dependent_init (const char *)
static void	init_asm_output (const char *)
static void	finalize ()
static void	crash_signal (int) ATTRIBUTE_NORETURN
static void	compile_file (void)
bool	set_src_pwd (const char *pwd)
const char *	get_src_pwd (void)
void	announce_function (tree decl)
static void	init_local_tick (void)
HOST_WIDE_INT	get_random_seed (bool noinit)
void	set_random_seed (const char *val)
void	wrapup_global_declaration_1 (tree decl)
bool	wrapup_global_declaration_2 (tree decl)
bool	wrapup_global_declarations (tree *vec, int len)
void	print_version (FILE *file, const char *indent, bool show_global_state)
static void *	realloc_for_line_map (void *ptr, size_t len)
static void *	alloc_for_identifier_to_locale (size_t len)
static void	output_stack_usage_1 (FILE *cf)
static void	dump_final_node_vcg_start (FILE *f, tree decl)
static void	dump_final_callee_vcg (FILE *f, location_t location, tree callee)
static bool	dump_final_alias_vcg (cgraph_node *alias, void *f_)
static void	dump_final_node_vcg (FILE *f)
void	output_stack_usage (void)
static FILE *	open_auxiliary_file (const char *ext)
static void	internal_error_reentered (diagnostic_context *, const char *, va_list *)
static void	internal_error_function (diagnostic_context *, const char *, va_list *)
static bool	target_supports_section_anchors_p (void)
static void	read_log_maxskip (auto_vec< unsigned > &values, align_flags_tuple *a)
static void	parse_N_M (const char *flag, align_flags &a)
void	parse_alignment_opts (void)
static void	process_options ()
static void	backend_init_target (void)
static void	lang_dependent_init_target (void)
void	initialize_rtl (void)
void	target_reinit (void)
void	dump_memory_report (const char *header)
static bool	standard_type_bitsize (int bitsize)
static void	do_compile ()

Variables
struct cl_decoded_option *	save_decoded_options
unsigned int	save_decoded_options_count
vec< cl_decoded_option > *	save_opt_decoded_options
const struct gcc_debug_hooks *	debug_hooks
tree	current_function_decl
const char *	current_function_func_begin_label
static const char *	flag_random_seed
unsigned	local_tick
HOST_WIDE_INT	random_seed
rtx	stack_limit_rtx
class target_flag_state	default_target_flag_state
const char *	user_label_prefix
FILE *	asm_out_file
FILE *	aux_info_file
FILE *	callgraph_info_file = NULL
static bitmap	callgraph_info_external_printed
FILE *	stack_usage_file = NULL
static bool	no_backend = false
static const char *	src_pwd
static int	rtl_initialized

Macro Definition Documentation

__VERSION__

#define __VERSION__   "[?]"

Referenced by print_version().

GCC_GMP_STRINGIFY_VERSION

#define GCC_GMP_STRINGIFY_VERSION

Value:

  GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION) "." \
  GCC_GMP_STRINGIFY_VERSION2 (__GNU_MP_VERSION_MINOR)

Referenced by print_version().

GCC_GMP_STRINGIFY_VERSION2

#define GCC_GMP_STRINGIFY_VERSION2

(

X

)

Value:

GCC_GMP_STRINGIFY_VERSION3 (X)

GCC_GMP_STRINGIFY_VERSION3

#define GCC_GMP_STRINGIFY_VERSION3

(

X

)

Value:

#X

GCC_GMP_VERSION

#define GCC_GMP_VERSION    GCC_GMP_VERSION_NUM(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, __GNU_MP_VERSION_PATCHLEVEL)

GCC_GMP_VERSION_NUM

#define GCC_GMP_VERSION_NUM	(		X,
			Y,
			Z )

Value:

(((X) << 16L) | ((Y) << 8) | (Z))

INCLUDE_MEMORY

#define INCLUDE_MEMORY

Top level of GCC compilers (cc1, cc1plus, etc.)
   Copyright (C) 1987-2024 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.   

This is the top level of cc1/c++.
It parses command args, opens files, invokes the various passes
in the proper order, and counts the time used by each.
Error messages and low-level interface to malloc also handled here.   

INDIRECT_CALL_NAME

#define INDIRECT_CALL_NAME   "__indirect_call"

Dump placeholder node for indirect calls in VCG format.   

Referenced by dump_final_callee_vcg(), and dump_final_node_vcg_start().

this_target_flag_state

#define this_target_flag_state   (&default_target_flag_state)

Function Documentation

alloc_for_identifier_to_locale()

static void * alloc_for_identifier_to_locale ( size_t len )

static

A helper function: used as the allocator function for
identifier_to_locale.   

References ggc_alloc_atomic().

Referenced by general_init().

announce_function()

void announce_function

(

tree

decl

)

Called when the start of a function definition is parsed,
this function prints on stderr the name of the function.   

References DECL_NAME, lang_hooks::decl_printable_name, diagnostic_set_last_function, global_dc, IDENTIFIER_POINTER, identifier_to_locale(), diagnostic_context::m_printer, NULL, and pp_needs_newline().

Referenced by cgraph_node::expand().

backend_init()

static void backend_init ( void )

static

Initialize the compiler back end.  This function is called only once,
when starting the compiler.   

References init_emit_once(), init_emit_regs(), init_inline_once(), init_regs(), init_rtlanal(), init_varasm_once(), and save_register_info().

Referenced by do_compile().

backend_init_target()

static void backend_init_target ( void )

static

This function can be called multiple times to reinitialize the compiler
back end when register classes or instruction sets have changed,
before each function.   

References caller_save_initialized_p, expand_dummy_function_end(), init_alias_target(), init_dummy_function_start(), init_expmed(), init_expr_target(), init_fake_stack_mems(), init_lower_subreg(), init_reload(), init_set_costs(), ira_init(), ira_use_lra_p, and recog_init().

Referenced by initialize_rtl().

compile_file()

static void compile_file ( void )

static

Compile an entire translation unit.  Write a file of assembly
output and various debugging dumps.   

References asan_finish_file(), asm_out_file, debug_hooks, debuginfo_start(), debuginfo_stop(), lang_hooks::decls, dump_location_info(), dw2_output_indirect_constants(), dwarf2out_frame_finish(), end_auto_profile(), symbol_table::finalize_compilation_unit(), gcc_debug_hooks::finish, dump_context::finish_any_json_writer(), finish_tm_clone_pairs(), free_attr_data(), gate_hwasan(), dump_context::get(), ggc_protect_identifiers, HOST_WIDE_INT_1U, hwasan_finish_file(), INCREMENTAL_LINK_LTO, insn_locations_init(), invoke_plugin_callbacks(), maximum_field_alignment, NULL, NULL_TREE, omp_finish_file(), output_object_blocks(), output_shared_constant_pool(), lang_hooks::parse_file, lang_hooks_for_decls::post_compilation_parsing_cleanups, process_pending_assemble_externals(), SANITIZE_ADDRESS, SANITIZE_THREAD, seen_error(), symtab, targetm, timevar_pop(), timevar_push(), timevar_start(), timevar_stop(), tsan_finish_file(), and weak_finish().

Referenced by do_compile().

crash_signal()

static void crash_signal ( int signo )

static

Handler for fatal signals, such as SIGSEGV.  These are transformed
into ICE messages, which is much more user friendly.  In case the
error printer crashes, reset the signal to prevent infinite recursion.   

References FATAL_EXIT_CODE, internal_error(), output_operand_lossage(), strsignal(), and this_is_asm_operands.

Referenced by general_init().

do_compile()

static void do_compile ( )

static

Initialize the compiler, and compile the input file.   

References backend_init(), compile_file(), coverage_init(), debuginfo_init(), real_format::emax, real_format::emin, finalize(), FOR_EACH_MODE_IN_CLASS, dump_context::get(), ggc_protect_identifiers, i, init_adjust_machine_modes(), init_derived_machine_modes(), init_final(), symbol_table::initialize(), int_n_data, int_n_enabled_p, invoke_plugin_callbacks(), lang_dependent_init(), int_n_data_t::m, no_backend, NULL, real_format::p, REAL_MODE_FORMAT, SCALAR_FLOAT_MODE_P, seen_error(), dump_context::set_json_writer(), sorry(), standard_type_bitsize(), statistics_init(), symtab, targetm, timevar_start(), and timevar_stop().

Referenced by toplev::main().

dump_final_alias_vcg()

static bool dump_final_alias_vcg ( cgraph_node * alias, void * f_ )

static

Callback for cgraph_node::call_for_symbol_thunks_and_aliases to dump to F_ a
node and an edge from ALIAS->DECL to CURRENT_FUNCTION_DECL.   

References current_function_decl, symtab_node::decl, DECL_SOURCE_LOCATION, dump_final_node_vcg_start(), expand_location(), LOCATION_LOCUS, print_decl_identifier(), PRINT_DECL_UNIQUE_NAME, and UNKNOWN_LOCATION.

Referenced by dump_final_node_vcg().

dump_final_callee_vcg()

static void dump_final_callee_vcg ( FILE * f, location_t location, tree callee )

static

Dump final cgraph edge in VCG format.   

References bitmap_set_bit, callgraph_info_external_printed, current_function_decl, DECL_EXTERNAL, DECL_UID, dump_final_node_vcg_start(), expand_location(), INDIRECT_CALL_NAME, LOCATION_LOCUS, print_decl_identifier(), PRINT_DECL_UNIQUE_NAME, and UNKNOWN_LOCATION.

Referenced by dump_final_node_vcg().

dump_final_node_vcg()

static void dump_final_node_vcg ( FILE * f )

static

Dump final cgraph node in VCG format.   

References cgraph_node::call_for_symbol_thunks_and_aliases(), CALLGRAPH_INFO_DYNAMIC_ALLOC, CALLGRAPH_INFO_STACK_USAGE, cfun, current_function_decl, callinfo_callee::decl, dump_final_alias_vcg(), dump_final_callee_vcg(), dump_final_node_vcg_start(), expand_location(), FOR_EACH_VEC_SAFE_ELT, cgraph_node::get(), i, callinfo_callee::location, callinfo_dalloc::location, callinfo_dalloc::name, NULL, output_stack_usage_1(), vec_free(), and vec_safe_length().

Referenced by output_stack_usage().

dump_final_node_vcg_start()

static void dump_final_node_vcg_start ( FILE * f, tree decl )

static

References INDIRECT_CALL_NAME, print_decl_identifier(), PRINT_DECL_NAME, PRINT_DECL_ORIGIN, and PRINT_DECL_UNIQUE_NAME.

Referenced by dump_final_alias_vcg(), dump_final_callee_vcg(), and dump_final_node_vcg().

dump_memory_report()

void dump_memory_report

(

const char *

header

)

References dump_alias_stats(), dump_alloc_pool_statistics(), dump_bitmap_statistics(), dump_ggc_loc_statistics(), dump_gimple_statistics(), dump_hash_table_loc_statistics(), dump_line_table_statistics(), dump_pta_stats(), dump_rtx_statistics(), dump_tree_statistics(), dump_vec_loc_statistics(), fputc(), ggc_print_statistics(), i, and stringpool_statistics().

Referenced by symbol_table::compile(), and finalize().

finalize()

static void finalize ( )

static

Clean up: close opened files, etc.   

References asm_out_file, aux_info_file, BITMAP_FREE, bitmap_obstack_release(), callgraph_info_external_printed, callgraph_info_file, coverage_remove_note_file(), dbg_cnt_list_all_counters(), debuginfo_fini(), dump_memory_report(), dump_profile_report(), fatal_error(), lang_hooks::finish, gcc::pass_manager::finish_optimization_passes(), g, gcc::context::get_passes(), input_location, lra_finish_once(), no_backend, NULL, seen_error(), stack_usage_file, and statistics_fini().

Referenced by do_compile(), ggc_alloc(), ggc_cleared_alloc(), ggc_cleared_vec_alloc(), ggc_vec_alloc(), and rest_of_decl_compilation().

general_init()

static void general_init ( const char * argv0, bool init_signals, unique_argv original_argv )

static

Initialization of the front end environment, before command line
options are parsed.  Signal handlers, internationalization etc.
ARGV0 is main's argv[0].   

References alloc_for_identifier_to_locale(), BUILTINS_LOCATION, crash_signal(), debuginfo_early_init(), diagnostic_initialize(), diagnostic_source_printing_options::enabled, host_hooks::extra_signals, g, gcc_init_libintl, gcc::context::get_dumps(), ggc_alloc(), ggc_free(), ggc_round_alloc_size(), global_dc, global_options, identifier_to_locale_alloc, identifier_to_locale_free, init_ggc(), init_reg_sets(), init_stringpool(), init_ttree(), input_location, internal_error_function(), line_table, diagnostic_context::m_internal_error, diagnostic_context::m_show_column, diagnostic_context::m_source_printing, make_gcc_urlifier(), diagnostic_source_printing_options::min_margin_width, lang_hooks::option_lang_mask, progname, realloc_for_line_map(), gcc::dump_manager::register_dumps(), diagnostic_context::set_option_manager(), diagnostic_context::set_original_argv(), gcc::context::set_passes(), diagnostic_context::set_path_format(), diagnostic_context::set_show_cwe(), diagnostic_context::set_show_highlight_colors(), diagnostic_context::set_show_option_requested(), diagnostic_context::set_show_path_depths(), diagnostic_context::set_show_rules(), diagnostic_context::set_urlifier(), diagnostic_source_printing_options::show_event_links_p, diagnostic_source_printing_options::show_labels_p, diagnostic_source_printing_options::show_line_numbers_p, statistics_early_init(), symtab, tree_diagnostics_defaults(), and UNKNOWN_LOCATION.

Referenced by toplev::main().

get_random_seed()

HOST_WIDE_INT get_random_seed

(

bool

noinit

)

Obtain the random_seed.  Unless NOINIT, initialize it if
it's not provided in the command line.   

References local_tick, O_RDONLY, and random_seed.

Referenced by get_file_function_name(), and lto_get_section_name().

get_src_pwd()

const char * get_src_pwd

(

void

)

Return the directory from which the translation unit was initiated,
in case set_src_pwd() was not called before to assign it a
different value.   

References src_pwd.

Referenced by comp_dir_string(), ctf_add_cuname(), lto_location_cache::input_location_and_block(), and lto_output_location_1().

init_asm_output()

static void init_asm_output ( const char * name )

static

Open assembly code output file.  Do this even if -fsyntax-only is
on, because then the driver will have provided the name of a
temporary file or bit bucket for us.  NAME is the file specified on
the command line, possibly NULL.   

References ASM_COMMENT_START, asm_out_file, fatal_error(), fopen, fputc(), free(), gen_command_line_string(), gen_producer_string(), diagnostic_context::get_lang_mask(), global_dc, HOST_BIT_BUCKET, inform(), lang_hooks::name, NULL, print_version, save_decoded_options, save_decoded_options_count, strip_off_ending(), targetm, and UNKNOWN_LOCATION.

Referenced by lang_dependent_init().

init_local_tick()

static void init_local_tick ( void )

static

Initialize local_tick with the time of day, or -1 if
flag_random_seed is set.   

References flag_random_seed, local_tick, and NULL.

Referenced by toplev::main().

initialize_rtl()

void initialize_rtl

(

void

)

References backend_init_target(), g_timer, ira_init_once(), rtl_initialized, and this_target_rtl.

Referenced by init_function_start(), read_rtl_function_body(), and read_rtl_function_body_from_file_range().

internal_error_function()

static void internal_error_function ( diagnostic_context * , const char * , va_list *  )

static

Auxiliary callback for the diagnostics code.   

References emergency_dump_function(), global_dc, internal_error_reentered(), diagnostic_context::m_internal_error, and warn_if_plugins().

Referenced by general_init().

internal_error_reentered()

static void internal_error_reentered ( diagnostic_context * , const char * , va_list *  )

static

Alternative diagnostics callback for reentered ICE reporting.   

References dump_file.

Referenced by internal_error_function().

lang_dependent_init()

static int lang_dependent_init ( const char * name )

static

Language-dependent initialization.  Returns nonzero on success.   

References BITMAP_ALLOC, bitmap_obstack_initialize(), BUILTINS_LOCATION, callgraph_info_external_printed, callgraph_info_file, debug_hooks, gcc_debug_hooks::init, lang_hooks::init, init_asm_output(), init_eh(), input_location, lang_dependent_init_target(), NULL, open_auxiliary_file(), stack_usage_file, timevar_pop(), and timevar_push().

Referenced by do_compile().

lang_dependent_init_target()

static void lang_dependent_init_target ( void )

static

Initialize things that are both lang-dependent and target-dependent.
This function can be called more than once if target parameters change.   

References gcc_assert, init_optabs(), and this_target_rtl.

Referenced by lang_dependent_init(), and target_reinit().

open_auxiliary_file()

static FILE * open_auxiliary_file ( const char * ext )

static

Open an auxiliary output file.   

References fatal_error(), fopen, free(), input_location, and NULL.

Referenced by lang_dependent_init().

output_stack_usage()

void output_stack_usage

(

void

)

Output stack usage and callgraph info, as requested.   

References callgraph_info_file, dump_final_node_vcg(), NULL, and output_stack_usage_1().

Referenced by rest_of_handle_thread_prologue_and_epilogue().

output_stack_usage_1()

static void output_stack_usage_1 ( FILE * cf )

static

Output stack usage information.   

References CALLGRAPH_INFO_STACK_USAGE, current_function_allocates_dynamic_stack_space, current_function_decl, current_function_dynamic_stack_size, current_function_has_unbounded_dynamic_stack_size, current_function_pushed_stack_size, current_function_static_stack_size, DECL_SOURCE_LOCATION, HOST_WIDE_INT_MAX, HOST_WIDE_INT_PRINT_DEC, print_decl_identifier(), PRINT_DECL_NAME, PRINT_DECL_ORIGIN, PRINT_DECL_REMAP_DEBUG, stack_usage_file, STATIC, warning(), and warning_at().

Referenced by dump_final_node_vcg(), and output_stack_usage().

parse_alignment_opts()

void parse_alignment_opts

(

void

)

Process -falign-foo=N[:M[:N2[:M2]]] options.   

References align_functions, align_jumps, align_labels, align_loops, and parse_N_M().

Referenced by invoke_set_current_function_hook().

parse_N_M()

static void parse_N_M ( const char * flag, align_flags & a )

static

Parse "N[:M[:N2[:M2]]]" string FLAG into a pair of struct align_flags.   

References a, cache, NULL, parse_and_check_align_values(), r, read_log_maxskip(), and UNKNOWN_LOCATION.

Referenced by parse_alignment_opts().

print_version()

void print_version	(	FILE *	file,
		const char *	indent,
		bool	show_global_state )

Print version information to FILE.
Each line begins with INDENT (for the case where FILE is the
assembler output file).

If SHOW_GLOBAL_STATE is true (for cc1 etc), we are within the compiler
proper and can print pertinent state (e.g. params and plugins).

If SHOW_GLOBAL_STATE is false (for use by libgccjit), we are outside the
compiler, and we don't hold the mutex on the compiler's global state:
we can't print params and plugins, since they might not be initialized,
or might be being manipulated by a compile running in another
thread.   

References _, __VERSION__, GCC_GMP_STRINGIFY_VERSION, N_, lang_hooks::name, and print_plugins_versions().

process_options()

static void process_options ( )

static

Process the options that have been parsed.   

References abi_version_at_least, asan_shadow_offset_set_p(), aux_info_file, btf_debuginfo_p(), build_optimization_node(), CF_BRANCH, CF_FULL, CF_NONE, CF_RETURN, CF_SET, codeview_debuginfo_p(), diagnostic_context::create_edit_context(), ctf_debuginfo_p(), CTFINFO_LEVEL_NONE, debug_hooks, debug_set_count(), debug_set_to_format(), debug_type_names, diagnose_options(), diagnostic_classify_diagnostic(), diagnostic_inhibit_notes(), DINFO_LEVEL_NONE, DINFO_LEVEL_NORMAL, dump_go_spec_init(), DWARF2_DEBUG, dwarf2_debug_hooks, dwarf2_lineno_debug_hooks, dwarf2out_default_as_loc_support(), dwarf2out_default_as_locview_support(), dwarf_debuginfo_p(), error_at(), fatal_error(), flag_stack_protector_set_by_fhardened_p, fopen, fputc(), FRAME_GROWS_DOWNWARD, free(), gcc_assert, gen_command_line_string(), global_dc, global_options, global_options_set, hash_table_sanitize_eq_limit, inform(), input_location, IRA_REGION_MIXED, IRA_REGION_ONE, lang_GNU_C(), line_table, maximum_field_alignment, lang_hooks::name, no_backend, NO_DEBUG, NO_STACK_CHECK, NULL, optimization_current_node, optimization_default_node, OPTION_SET_P, option_unspecified_p(), parse_and_check_patch_area(), SANITIZE_ADDRESS, SANITIZE_HWADDRESS, SANITIZE_KERNEL_ADDRESS, SANITIZE_SHADOW_CALL_STACK, SANITIZE_USER_ADDRESS, save_decoded_options, save_decoded_options_count, sorry(), STACK_GROWS_DOWNWARD, startswith(), target_supports_section_anchors_p(), targetm, UNKNOWN_LOCATION, USER_LABEL_PREFIX, user_label_prefix, VMS_AND_DWARF2_DEBUG, VMS_DEBUG, vmsdbg_debug_hooks, and warning_at().

Referenced by toplev::main().

read_log_maxskip()

static void read_log_maxskip ( auto_vec< unsigned > & values, align_flags_tuple * a )

static

Parse "N[:M][:...]" into struct align_flags A.
VALUES contains parsed values (in reverse order), all processed
values are popped.   

References a, and floor_log2().

Referenced by parse_N_M().

realloc_for_line_map()

static void * realloc_for_line_map ( void * ptr, size_t len )

static

A helper function; used as the reallocator function for cpp's line
table.   

References ggc_realloc().

Referenced by general_init().

set_random_seed()

void set_random_seed

(

const char *

val

)

Set flag_random_seed to VAL, and if non-null, reinitialize random_seed.   

References crc32_string(), flag_random_seed, and random_seed.

Referenced by handle_common_deferred_options().

set_src_pwd()

bool set_src_pwd

(

const char *

pwd

)

Initialize src_pwd with the given string, and return true.  If it
was already initialized, return false.  As a special case, it may
be called with a NULL argument to test whether src_pwd has NOT been
initialized yet.   

References src_pwd.

standard_type_bitsize()

static bool standard_type_bitsize ( int bitsize )

static

References CHAR_TYPE_SIZE, INT_TYPE_SIZE, LONG_LONG_TYPE_SIZE, LONG_TYPE_SIZE, and SHORT_TYPE_SIZE.

Referenced by do_compile().

target_reinit()

void target_reinit

(

void

)

Reinitialize everything when target parameters, such as register usage,
have changed.   

References crtl, global_options, global_options_set, init_emit_regs(), init_regs(), lang_dependent_init_target(), no_backend, NULL, optimization_current_node, optimization_default_node, regno_reg_rtx, this_fn_optabs, this_target_rtl, and TREE_OPTIMIZATION.

target_supports_section_anchors_p()

static bool target_supports_section_anchors_p ( void )

static

Return true if the current target supports -fsection-anchors.   

References NULL, and targetm.

Referenced by process_options().

wrapup_global_declaration_1()

void wrapup_global_declaration_1

(

tree

decl

)

A subroutine of wrapup_global_declarations.  We've come to the end of
the compilation unit.  All deferred variables should be undeferred,
and all incomplete decls should be finalized.   

References DECL_DEFER_OUTPUT, DECL_SIZE, lang_hooks::finish_incomplete_decl, HAS_DECL_ASSEMBLER_NAME_P, and VAR_P.

Referenced by wrapup_global_declarations().

wrapup_global_declaration_2()

bool wrapup_global_declaration_2

(

tree

decl

)

A subroutine of wrapup_global_declarations.  Decide whether or not DECL
needs to be output.  Return true if it is output.   

References symtab_node::alias, symtab_node::analyzed, DECL_ARTIFICIAL, DECL_ASSEMBLER_NAME, DECL_COMDAT, DECL_EXTERNAL, DECL_HAS_VALUE_EXPR_P, symtab_node::definition, varpool_node::get(), symbol_table::global_info_ready, rest_of_decl_compilation(), symtab, TREE_ASM_WRITTEN, TREE_PUBLIC, TREE_READONLY, TREE_STATIC, TREE_USED, and VAR_P.

Referenced by wrapup_global_declarations().

wrapup_global_declarations()

bool wrapup_global_declarations	(	tree *	vec,
		int	len )

Do any final processing required for the declarations in VEC, of
which there are LEN.  We write out inline functions and variables
that have been deferred until this point, but which are required.
Returns nonzero if anything was put out.   

References i, wrapup_global_declaration_1(), and wrapup_global_declaration_2().

Referenced by global_decl_processing().

Variable Documentation

asm_out_file

FILE* asm_out_file

Output files for assembler code (real compiler output)
and debugging dumps.   

Referenced by app_disable(), app_enable(), asan_function_start(), asm_fprintf(), asm_show_source(), assemble_align(), assemble_asm(), assemble_constant_contents(), assemble_end_function(), assemble_external(), assemble_integer_with_op(), assemble_start_function(), assemble_static_space(), assemble_string(), assemble_trampoline_template(), assemble_undefined_decl(), assemble_variable(), assemble_variable_contents(), assemble_zeros(), compile_file(), default_asm_output_ident_directive(), default_assemble_visibility(), default_coff_asm_named_section(), default_elf_asm_named_section(), default_external_libcall(), default_file_start(), default_pe_asm_named_section(), do_assemble_alias(), do_assemble_symver(), dump_basic_block_info(), dw2_asm_output_addr(), dw2_asm_output_addr_rtx(), dw2_asm_output_data(), dw2_asm_output_data_raw(), dw2_asm_output_data_sleb128(), dw2_asm_output_data_sleb128_raw(), dw2_asm_output_data_uleb128(), dw2_asm_output_data_uleb128_raw(), dw2_asm_output_delta(), dw2_asm_output_delta_uleb128(), dw2_asm_output_encoded_addr_rtx(), dw2_asm_output_nstring(), dw2_asm_output_offset(), dw2_asm_output_offset(), dw2_asm_output_symname_uleb128(), dw2_assemble_integer(), dwarf2out_begin_prologue(), dwarf2out_do_cfi_startproc(), dwarf2out_emit_cfi(), dwarf2out_end_epilogue(), dwarf2out_switch_text_section(), dwarf2out_vms_begin_epilogue(), dwarf2out_vms_end_prologue(), elf_record_gcc_switches(), emit_common(), emit_local(), emit_tls_common(), expand_thunk(), final_end_function(), final_scan_insn_1(), finalize(), find_empty_loc_ranges_at_text_label(), generic_type_p(), globalize_decl(), init_asm_output(), make_decl_rtl(), output_addr_table(), output_address(), output_asm_insn(), output_asm_label(), output_asm_name(), output_asm_operand_names(), output_btf_header(), output_call_frame_info(), output_cfa_loc_raw(), output_cfi_directive(), output_comp_unit(), output_constant(), output_constant_def_contents(), output_constant_pool(), output_constant_pool_1(), output_constant_pool_contents(), output_constructor(), output_ctf_header(), output_die(), output_fde(), output_function_exception_table(), output_line_info(), output_loc_list(), output_loc_operands(), output_loc_operands_raw(), output_loc_sequence_raw(), output_one_function_exception_table(), output_operand(), output_ranges(), output_rnglists(), output_section_asm_op(), output_skeleton_debug_sections(), rest_of_decl_compilation(), rest_of_handle_final(), switch_to_eh_frame_section(), weak_finish(), and weak_finish_1().

aux_info_file

FILE* aux_info_file

Referenced by finalize(), and process_options().

callgraph_info_external_printed

bitmap callgraph_info_external_printed

static

Referenced by dump_final_callee_vcg(), finalize(), and lang_dependent_init().

callgraph_info_file

FILE* callgraph_info_file = NULL

Referenced by finalize(), lang_dependent_init(), and output_stack_usage().

current_function_decl

tree current_function_decl

The FUNCTION_DECL for the function currently being compiled,
or 0 if between functions.   

Referenced by add_call_edges_for_seq(), adjust_assumption_stmt_r(), adjust_context_and_scope(), adjust_return_value_with_ops(), autofdo::afdo_annotate_cfg(), autofdo::afdo_indirect_call(), autofdo::afdo_vpt_for_early_inline(), asan_emit_stack_protection(), assemble_start_function(), assign_parm_find_data_types(), assign_parm_find_entry_rtl(), assign_parm_setup_reg(), assign_parms(), assign_parms_augmented_arg_list(), assign_parms_initialize_all(), assign_stack_local_1(), autofdo::auto_profile(), branch_prob(), build_duplicate_type(), build_instrumentation_call(), can_implement_as_sibling_call_p(), cfg_layout_merge_blocks(), cgraph_build_static_cdtor_1(), cgraph_debug_gimple_stmt(), check_bb_profile(), check_call(), check_counter(), check_omp_nesting_restrictions(), clobber_return_register(), collect_fn_hard_reg_usage(), computable_teams_clause(), computation_cost(), compute_discriminator(), compute_fn_summary_for_current(), compute_frame_pointer_to_fb_displacement(), compute_function_frequency(), consider_split(), const_ok_for_output_1(), convert_cfa_to_fb_loc_list(), convert_local_reference_op(), convert_nonlocal_reference_op(), convert_to_integer_1(), copy_fn(), copy_gimple_seq_and_replace_locals(), coverage_begin_function(), coverage_compute_lineno_checksum(), coverage_counter_alloc(), coverage_end_function(), create_access_replacement(), create_artificial_label(), create_asan_shadow_var(), create_assumption_fn(), create_coalesce_list_for_region(), function_reader::create_function(), create_omp_child_function(), create_omp_child_function_name(), create_stack_guard(), create_tailcall_accumulator(), current_function_section(), decide_function_section(), decl_address_invariant_p(), default_print_patchable_function_entry(), detect_type_change(), detect_type_change_ssa(), determine_unlikely_bbs(), df_get_entry_block_def_set(), diagnose_omp_structured_block_errors(), diagnose_tm_blocks(), do_per_function(), do_per_function_toporder(), do_reload(), dump_alias_info(), dump_bb_info(), dump_dfa_stats(), dump_final_alias_vcg(), dump_final_callee_vcg(), dump_final_node_vcg(), dump_function_to_file(), dump_loc(), dump_loc(), dump_one_pass(), gcc::pass_manager::dump_passes(), dump_ranger(), dump_scope_blocks(), dump_tree_ssa(), dw_loc_list(), dwarf2out_alloc_current_fde(), dwarf2out_begin_prologue(), dwarf2out_do_cfi_startproc(), autofdo::early_inline(), early_inliner(), eliminate_regs_1(), eliminate_dom_walker::eliminate_stmt(), eliminate_tail_call(), tree_switch_conversion::switch_decision_tree::emit(), estimate_bb_frequencies(), execute_all_ipa_transforms(), execute_build_cfg(), execute_fixup_cfg(), execute_ipa_pass_list(), execute_lower_coro_builtins(), execute_lower_omp(), execute_lower_tm(), execute_oacc_device_lower(), execute_oacc_loop_designation(), execute_omp_oacc_neuter_broadcast(), execute_one_pass(), execute_ranger_vrp(), execute_split_functions(), execute_todo(), expand_block_edges(), expand_builtin(), expand_builtin_goacc_parlevel_id_size(), expand_builtin_setjmp_receiver(), expand_builtin_strub_leave(), expand_builtin_strub_update(), expand_call(), expand_debug_source_expr(), expand_expr_real_1(), expand_function_end(), expand_function_start(), expand_gimple_stmt_1(), expand_goto(), expand_oacc_for(), expand_omp(), expand_omp_target(), expand_omp_taskreg(), expand_one_var(), expand_regions_1(), expand_return(), expand_thunk(), expand_used_vars(), expand_value_return(), final_end_function(), final_scan_insn_1(), final_start_function_1(), symbol_table::finalize_compilation_unit(), find_empty_loc_ranges_at_text_label(), find_obviously_necessary_stmts(), find_return_bb(), find_tail_calls(), find_var_candidates(), finite_loop_p(), fixup_reorder_chain(), fold_builtin_FUNCTION(), fold_builtin_next_arg(), fold_internal_goacc_dim(), cfn_goacc_dim::fold_range(), for_all_parms(), function_called_by_processed_nodes_p(), function_mergeable_rodata_prefix(), gate_tm_init(), gen_call_used_regs_seq(), generate_setjmp_warnings(), get_coverage_counts(), compiler_data_hooks::get_current_logical_location(), autofdo::get_inline_stack(), current_fndecl_logical_location::get_internal_name(), current_fndecl_logical_location::get_kind(), get_loop_location(), get_modref_function_summary(), current_fndecl_logical_location::get_name_for_path_output(), current_fndecl_logical_location::get_name_with_scope(), autofdo::get_relative_location_for_stmt(), current_fndecl_logical_location::get_short_name(), get_spill_slot_decl(), get_stack_dynamic_offset(), gimple_add_tmp_var(), gimple_dump_bb_buff(), gimple_dump_cfg(), gimple_gen_ic_func_profiler(), gimple_verify_flow_info(), gimplify_bind_expr(), gimplify_body(), gimplify_cond_expr(), gimplify_expr(), gimplify_function_tree(), gimplify_label_expr(), gimplify_modify_expr(), gimplify_oacc_declare(), gimplify_omp_loop(), gimplify_return_expr(), gimplify_var_or_parm_decl(), in_initial_view_p(), infer_nonnull_range_by_attribute(), init_lowered_empty_function(), initialize_inlined_parameters(), initialize_parameter_reductions(), inline_transform(), instantiate_virtual_regs(), instrument_derefs(), instrument_object_size(), ipa_analyze_call_uses(), ipa_passes(), ipa_polymorphic_call_context::ipa_polymorphic_call_context(), ipa_read_optimization_summaries_1(), ipa_read_summaries_1(), ipa_record_return_value_range(), ipa_reference_get_read_global(), ipa_reference_get_written_global(), ipa_tm_insert_gettmclone_call(), ipa_tm_scan_irr_block(), ipa_tm_scan_irr_function(), ipa_tm_transform_calls_redirect(), ipa_write_optimization_summaries_1(), ipa_write_summaries_2(), ipcp_get_parm_bits(), ipcp_transform_function(), is_redundant_typedef(), lhd_print_error_function(), loc_list_from_tree_1(), lower_assumption(), lower_function_body(), lower_gimple_bind(), lower_lastprivate_conditional_clauses(), lower_omp_critical(), lra_eliminate_regs_1(), mark_all_vars_used_1(), mark_nonssa_use(), maybe_add_sra_candidate(), maybe_build_inner_data_region(), maybe_inline_call_in_expr(), maybe_remove_omp_member_access_dummy_vars(), ipa_param_adjustments::modify_call(), needs_to_live_in_memory(), new_omp_context(), noncall_stmt_may_be_vtbl_ptr_store(), note_no_context_vars(), note_simd_array_uses_cb(), oacc_do_neutering(), oacc_loop_discovery(), omp_apply_tile(), omp_construct_selector_matches(), omp_context_selector_matches(), omp_copy_decl(), omp_copy_decl_2(), omp_default_clause(), omp_maybe_offloaded(), omp_maybe_offloaded_ctx(), omp_member_access_dummy_var(), omp_notice_variable(), omp_oacc_kernels_decompose(), optimize_atomic_compare_exchange_p(), optimize_inline_calls(), optimize_va_list_gpr_fpr_size(), optrecord_json_writer::optinfo_to_json(), output_function(), output_function_exception_table(), output_stack_usage_1(), pass_init_dump_file(), points_to_local_or_readonly_memory_p(), points_to_possible_sra_candidate_p(), pop_cfun(), pop_function_context(), possible_polymorphic_call_target_p(), possible_polymorphic_call_targets(), predict_loops(), process_assignment(), profile_function(), promote_decl_mode(), push_cfun(), push_struct_function(), read_thunk_profile(), cgraph_edge::rebuild_edges(), cgraph_edge::rebuild_references(), record_vars(), refs_local_or_readonly_memory_p(), remove_unused_locals(), reorder_blocks(), ipa_param_body_adjustments::reset_debug_stmts(), rest_of_clean_state(), rest_of_decl_compilation(), rest_of_handle_final(), cgraph_node::rtl_info(), rtl_merge_blocks(), rtx_addr_can_trap_p_1(), rtx_for_function_call(), scan_omp_for(), scan_omp_simd(), secname_for_decl(), self_recursive_call_p(), set_nothrow_function_flags(), setjmp_args_warning(), setup_incoming_promotions(), sjlj_emit_function_enter(), split_function(), stack_protect_decl_phase(), suitable_for_tail_call_opt_p(), switch_to_exception_section(), tail_merge_optimize(), test_nonssa_use(), tree_bb_level_predictions(), tree_optimize_tail_calls_1(), ubsan_create_edge(), ubsan_encode_value(), unlikely_executed_stmt_p(), unlikely_text_section(), unlikely_text_section_p(), update_call_edge_frequencies(), use_register_for_decl(), verify_gimple_label(), vt_add_function_parameter(), vt_add_function_parameters(), vt_init_cfa_base(), and vt_initialize().

current_function_func_begin_label

const char* current_function_func_begin_label

Set to the FUNC_BEGIN label of the current function, or NULL
if none.   

Referenced by dw2_output_call_site_table(), and dwarf2out_begin_prologue().

debug_hooks

const struct gcc_debug_hooks* debug_hooks

Debug hooks - dependent upon command line options.   

Referenced by analyze_functions(), varpool_node::assemble_decl(), assemble_start_function(), symbol_table::compile(), compile_file(), expand_call_inline(), final_end_function(), final_scan_insn_1(), final_start_function_1(), symbol_table::finalize_compilation_unit(), cgraph_node::finalize_function(), finalize_size_functions(), lang_dependent_init(), lhd_finalize_early_debug(), lto_input_tree(), lto_write_tree_1(), toplev::main(), mark_scope_block_unused(), maybe_output_next_view(), process_options(), symbol_table::remove_unreachable_nodes(), rest_of_decl_compilation(), rest_of_handle_final(), rest_of_type_compilation(), run_rtl_passes(), and tree_function_versioning().

default_target_flag_state

class target_flag_state default_target_flag_state

flag_random_seed

const char* flag_random_seed

static

A random sequence of characters, unless overridden by user.   

Referenced by init_local_tick(), and set_random_seed().

local_tick

unsigned local_tick

A local time stamp derived from the time of compilation. It will be
zero if the system cannot provide a time.  It will be -1u, if the
user has specified a particular random seed.   

Referenced by coverage_finish(), coverage_init(), get_random_seed(), and init_local_tick().

no_backend

bool no_backend = false

static

Referenced by do_compile(), finalize(), toplev::finalize(), toplev::main(), process_options(), and target_reinit().

random_seed

HOST_WIDE_INT random_seed

Random number for this compilation  

Referenced by compare_debug_dump_opt_spec_function(), get_random_seed(), and set_random_seed().

rtl_initialized

int rtl_initialized

static

Perform initializations that are lang-dependent or target-dependent.
but matters only for late optimizations and RTL generation.   

Referenced by toplev::finalize(), and initialize_rtl().

save_decoded_options

struct cl_decoded_option* save_decoded_options

Decoded options, and number of such options.   

Referenced by toplev::finalize(), init_asm_output(), lto_write_options(), toplev::main(), and process_options().

save_decoded_options_count

unsigned int save_decoded_options_count

Referenced by toplev::finalize(), init_asm_output(), lto_write_options(), toplev::main(), and process_options().

save_opt_decoded_options

vec<cl_decoded_option>* save_opt_decoded_options

Vector of saved Optimization decoded command line options.   

Referenced by toplev::main().

src_pwd

const char* src_pwd

static

The current working directory of a translation.  It's generally the
directory from which compilation was initiated, but a preprocessed
file may specify the original directory in which it was
created.   

Referenced by get_src_pwd(), lto_location_cache::input_location_and_block(), and set_src_pwd().

stack_limit_rtx

rtx stack_limit_rtx

-f flags.   

When non-NULL, indicates that whenever space is allocated on the
stack, the resulting stack pointer must not pass this
address---that is, for stacks that grow downward, the stack pointer
must always be greater than or equal to this address; for stacks
that grow upward, the stack pointer must be less than this address.
At present, the rtx may be either a REG or a SYMBOL_REF, although
the support provided depends on the backend.   

Referenced by allocate_dynamic_stack_space(), expand_function_start(), handle_common_deferred_options(), and init_emit_regs().

stack_usage_file

FILE* stack_usage_file = NULL

Referenced by finalize(), lang_dependent_init(), and output_stack_usage_1().

user_label_prefix

const char* user_label_prefix

The user symbol prefix after having resolved same.   

Referenced by asm_fprintf(), symbol_table::assembler_names_equal_p(), symbol_table::decl_assembler_name_hash(), default_mangle_assembler_name(), and process_options().