#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "backend.h"
#include "tree.h"
#include "gimple.h"
#include "tree-streamer.h"
#include "cgraph.h"
#include "lto-streamer.h"
#include "toplev.h"
#include "lto-section-names.h"

Include dependency graph for lto-streamer.cc:

Functions
const char *	lto_tag_name (enum LTO_tags tag)
char *	lto_get_section_name (int section_type, const char name, int node_order, struct lto_file_decl_data f)
void	print_lto_report (const char *s)
void	lto_streamer_init (void)
bool	gate_lto_out (void)
void	lto_check_version (int major, int minor, const char *file_name)
void	lto_streamer_hooks_init (void)

Variables
struct lto_stats_d	lto_stats
const char *	section_name_prefix = LTO_SECTION_NAME_PREFIX
bool	lto_stream_offload_p
FILE *	streamer_dump_file

Function Documentation

◆ gate_lto_out()

bool gate_lto_out ( void )

Gate function for all LTO streaming passes.

References seen_error().

◆ lto_check_version()

void lto_check_version	(	int	major,
		int	minor,
		const char *	file_name )

Check that the version MAJOR.MINOR is the correct version number.

References fatal_error(), input_location, LTO_major_version, and LTO_minor_version.

◆ lto_get_section_name()

char * lto_get_section_name	(	int	section_type,
		const char *	name,
		int	node_order,
		struct lto_file_decl_data *	f )

Get a section name for a particular type or name.  The NAME field
is only used if SECTION_TYPE is LTO_section_function_body. For all
others it is ignored.  The callee of this function is responsible
to free the returned name.

References free(), gcc_assert, get_random_seed(), HOST_WIDE_INT_PRINT_HEX_PURE, lto_file_decl_data::id, internal_error(), LTO_N_SECTION_TYPES, LTO_section_function_body, lto_section_name, LTO_section_opts, NULL, and section_name_prefix.

Referenced by copy_function_or_variable(), lto_destroy_simple_output_block(), lto_output_toplevel_asms(), lto_write_mode_table(), lto_write_options(), produce_asm_for_decls(), produce_lto_section(), produce_symbol_asm(), produce_symtab(), and produce_symtab_extension().

◆ lto_streamer_hooks_init()

void lto_streamer_hooks_init ( void )

Initialize all the streamer hooks used for streaming GIMPLE.

References streamer_hooks::input_location, lto_input_location(), lto_input_tree(), lto_output_location(), lto_output_location_and_block(), lto_output_tree(), streamer_hooks::output_location, streamer_hooks::output_location_and_block, streamer_hooks::read_tree, streamer_hooks_init(), and streamer_hooks::write_tree.

Referenced by symbol_table::compile().

◆ lto_streamer_init()

void lto_streamer_init ( void )

Initialization common to the LTO reader and writer.

References streamer_check_handled_ts_structures().

Referenced by lto_output(), and lto_reader_init().

◆ lto_tag_name()

const char * lto_tag_name ( enum LTO_tags tag )

Return a string representing LTO tag TAG.

References get_tree_code_name(), gimple_code_name, LTO_bb0, LTO_bb1, LTO_eh_region, LTO_eh_table, LTO_ert_allowed_exceptions, LTO_ert_cleanup, LTO_ert_must_not_throw, LTO_ert_try, LTO_function, LTO_global_stream_ref, LTO_null, LTO_ssa_name_ref, lto_tag_is_gimple_code_p(), lto_tag_is_tree_code_p(), lto_tag_to_gimple_code(), lto_tag_to_tree_code(), and LTO_tree_pickle_reference.

Referenced by input_gimple_stmt(), lto_tag_check(), lto_tag_check_range(), and lto_tag_check_set().

◆ print_lto_report()

void print_lto_report ( const char * s )

Show various memory usage statistics related to LTO.

References get_tree_code_name(), HOST_WIDE_INT_PRINT_UNSIGNED, i, LTO_N_SECTION_TYPES, lto_section_name, lto_stats, and NUM_TREE_CODES.

Variable Documentation

◆ lto_stats

struct lto_stats_d lto_stats

Miscellaneous utilities for GIMPLE streaming.  Things that are used
   in both input and output are here.

   Copyright (C) 2009-2025 Free Software Foundation, Inc.
   Contributed by Doug Kwan <dougkwan@google.com>

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/>.

Statistics gathered during LTO, WPA and LTRANS.

Referenced by cl_optimization_stream_in(), varpool_node::get_constructor(), cgraph_node::get_untransformed_body(), lto_compress_block(), lto_compression_zlib(), lto_get_section_data(), lto_output_tree(), lto_uncompress_block(), lto_uncompression_zlib(), print_lto_report(), and streamer_write_tree_body().

◆ lto_stream_offload_p

bool lto_stream_offload_p

Set when streaming LTO for offloading compiler.

Referenced by hash_tree(), inline_read_section(), ipa_fn_summary_write(), ipa_passes(), lto_output_node(), lto_write_mode_table(), lto_write_options(), output_symtab(), pack_ts_base_value_fields(), pack_ts_decl_common_value_fields(), pack_ts_type_common_value_fields(), preload_common_nodes(), produce_asm_for_decls(), select_what_to_stream(), streamer_write_tree_bitfields(), unpack_ts_type_common_value_fields(), and write_ts_function_decl_tree_pointers().

◆ section_name_prefix

const char* section_name_prefix = LTO_SECTION_NAME_PREFIX

Can be either OFFLOAD_SECTION_NAME_PREFIX when we stream IR for offload
compiler, or LTO_SECTION_NAME_PREFIX for LTO case.

Referenced by ipa_passes(), and lto_get_section_name().

◆ streamer_dump_file

FILE* streamer_dump_file

Referenced by copy_function_or_variable(), create_output_block(), DFS::DFS(), ipa_write_summaries(), lto_begin_section(), lto_get_index(), lto_output_tree(), lto_write_tree_1(), output_bb(), output_constructor(), output_function(), produce_asm_for_decls(), streamer_write_integer_cst(), streamer_write_tree_header(), and write_global_stream().

Functions

Variables