#include "config.h"#include "system.h"#include "coretypes.h"#include "backend.h"#include "cfghooks.h"#include "pretty-print.h"#include "diagnostic-core.h"#include "cfganal.h"#include "cfgloop.h"#include "graph.h"#include "dumpfile.h"
Functions | |
| static FILE * | open_graph_file (const char *base, const char *mode) |
| static void | draw_cfg_node (pretty_printer *pp, int funcdef_no, basic_block bb) |
| static void | draw_cfg_node_succ_edges (pretty_printer *pp, int funcdef_no, basic_block bb) |
| static void | draw_cfg_nodes_no_loops (pretty_printer *pp, struct function *fun) |
| static void | draw_cfg_nodes_for_loop (pretty_printer *pp, int funcdef_no, class loop *loop) |
| static void | draw_cfg_nodes (pretty_printer *pp, struct function *fun) |
| static void | draw_cfg_edges (pretty_printer *pp, struct function *fun) |
| void DEBUG_FUNCTION | print_graph_cfg (FILE *fp, struct function *fun) |
| void DEBUG_FUNCTION | print_graph_cfg (FILE *fp, struct function *fun, dump_flags_t flags) |
| void | print_graph_cfg (const char *base, struct function *fun) |
| static void | start_graph_dump (FILE *fp, const char *base) |
| static void | end_graph_dump (FILE *fp) |
| void | clean_graph_dump_file (const char *base) |
| void | finish_graph_dump_file (const char *base) |
Variables | |
| static const char *const | graph_ext = ".dot" |
Function Documentation
◆ clean_graph_dump_file()
Similar as clean_dump_file, but this time for graph output files.
References ggc_alloc(), open_graph_file(), and start_graph_dump().
Referenced by execute_function_dump(), and pass_init_dump_file().
◆ draw_cfg_edges()
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static |
Draw all edges in the CFG. Retreating edges are drawin as not constraining, this makes the layout of the graph better.
References bitmap_bit_p, bitmap_set_bit, draw_cfg_node_succ_edges(), ENTRY_BLOCK, EXIT_BLOCK, FOR_ALL_BB_FN, FOR_EACH_BB_FN, FOR_EACH_EDGE, function::funcdef_no, ggc_alloc(), mark_dfs_back_edges(), pp_flush(), pp_printf(), and basic_block_def::succs.
Referenced by print_graph_cfg().
◆ draw_cfg_node()
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static |
Disable warnings about quoting issues in the pp_xxx calls below that (intentionally) don't follow GCC diagnostic conventions.
Draw a basic block BB belonging to the function with FUNCDEF_NO as its unique number.
References BB_PARTITION, dump_bb_for_graph(), ENTRY_BLOCK, EXIT_BLOCK, funcdef_no, ggc_alloc(), basic_block_def::index, pp_flush(), pp_left_brace, pp_printf(), pp_right_brace, pp_string(), and pp_write_text_to_stream().
Referenced by draw_cfg_nodes_for_loop(), and draw_cfg_nodes_no_loops().
◆ draw_cfg_node_succ_edges()
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static |
Draw all successor edges of a basic block BB belonging to the function with FUNCDEF_NO as its unique number.
References color(), FOR_EACH_EDGE, funcdef_no, ggc_alloc(), pp_flush(), pp_printf(), REG_BR_PROB_BASE, and basic_block_def::succs.
Referenced by draw_cfg_edges().
◆ draw_cfg_nodes()
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static |
Draw all the basic blocks in the CFG in case the loop tree is available. All loop bodys are printed in clusters.
References cfun, draw_cfg_nodes_for_loop(), draw_cfg_nodes_no_loops(), function::funcdef_no, get_loop(), and loops_for_fn().
Referenced by print_graph_cfg().
◆ draw_cfg_nodes_for_loop()
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static |
Draw all the basic blocks in LOOP. Print the blocks in breath-first order to get a good ranking of the nodes. This function is recursive: It first prints inner loops, then the body of LOOP itself.
References cfun, draw_cfg_node(), draw_cfg_nodes_for_loop(), EXIT_BLOCK_PTR_FOR_FN, free(), funcdef_no, get_loop_body(), get_loop_body_in_bfs_order(), ggc_alloc(), loop::header, i, loop::inner, loop::latch, loop_depth(), basic_block_def::loop_father, NULL, loop::num, loop::num_nodes, and pp_printf().
Referenced by draw_cfg_nodes(), and draw_cfg_nodes_for_loop().
◆ draw_cfg_nodes_no_loops()
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static |
Draw all the basic blocks in the CFG in case loops are not available. First compute a topological order of the blocks to get a good ranking of the nodes. Then, if any nodes are not reachable from ENTRY, add them at the end.
References BASIC_BLOCK_FOR_FN, bitmap_bit_p, bitmap_clear(), bitmap_set_bit, draw_cfg_node(), FOR_ALL_BB_FN, free(), function::funcdef_no, ggc_alloc(), i, basic_block_def::index, last_basic_block_for_fn, n_basic_blocks_for_fn, NULL, pre_and_rev_post_order_compute_fn(), and visited.
Referenced by draw_cfg_nodes().
◆ end_graph_dump()
◆ finish_graph_dump_file()
Do final work on the graph output file.
References end_graph_dump(), ggc_alloc(), and open_graph_file().
Referenced by emergency_dump_function(), and gcc::pass_manager::finish_optimization_passes().
◆ open_graph_file()
Open a file with MODE for dumping our graph to. Return the file pointer.
References fatal_error(), fopen, ggc_alloc(), graph_ext, input_location, and NULL.
Referenced by clean_graph_dump_file(), finish_graph_dump_file(), and print_graph_cfg().
◆ print_graph_cfg() [1/3]
Print a graphical representation of the CFG of function FUN. First print all basic blocks. Draw all edges at the end to get subgraphs right for GraphViz, which requires nodes to be defined before edges to cluster nodes properly.
References ggc_alloc(), open_graph_file(), and print_graph_cfg().
◆ print_graph_cfg() [2/3]
| void DEBUG_FUNCTION print_graph_cfg | ( | FILE * | fp, |
| struct function * | fun ) |
Print a graphical representation of the CFG of function FUN. First print all basic blocks. Draw all edges at the end to get subgraphs right for GraphViz, which requires nodes to be defined before edges to cluster nodes properly.
References draw_cfg_edges(), draw_cfg_nodes(), function_name(), ggc_alloc(), pp_flush(), and pp_printf().
Referenced by execute_function_dump(), print_graph_cfg(), and print_graph_cfg().
◆ print_graph_cfg() [3/3]
| void DEBUG_FUNCTION print_graph_cfg | ( | FILE * | fp, |
| struct function * | fun, | ||
| dump_flags_t | flags ) |
Overload with additional flag argument.
References dump_flags, ggc_alloc(), and print_graph_cfg().
◆ start_graph_dump()
Start the dump of a graph.
References ggc_alloc(), pp_flush(), pp_string(), pp_write_text_as_dot_label_to_stream(), and pp_write_text_to_stream().
Referenced by clean_graph_dump_file().
Variable Documentation
◆ graph_ext
Output routines for graphical representation. Copyright (C) 1998-2024 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. Rewritten for DOT output by Steven Bosscher, 2012. 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/>.
DOT files with the .dot extension are recognized as document templates by a well-known piece of word processing software out of Redmond, WA. Therefore some recommend using the .gv extension instead. Obstinately ignore that recommendation...
Referenced by open_graph_file().
