81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* Header file for minimum-cost maximal flow routines used to smooth basic
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block and edge frequency counts.
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Copyright (C) 2008-2020 Free Software Foundation, Inc.
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Contributed by Paul Yuan (yingbo.com@gmail.com)
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and Vinodha Ramasamy (vinodha@google.com).
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef PROFILE_H
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#define PROFILE_H
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/* Additional information about edges. */
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struct edge_profile_info
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{
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unsigned int count_valid:1;
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/* Is on the spanning tree. */
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unsigned int on_tree:1;
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/* Pretend this edge does not exist (it is abnormal and we've
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inserted a fake to compensate). */
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unsigned int ignore:1;
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};
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#define EDGE_INFO(e) ((struct edge_profile_info *) (e)->aux)
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/* Helpers annotating edges/basic blocks to GCOV counts. */
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extern vec<gcov_type> bb_gcov_counts;
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extern hash_map<edge,gcov_type> *edge_gcov_counts;
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inline gcov_type &
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edge_gcov_count (edge e)
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{
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bool existed;
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gcov_type &c = edge_gcov_counts->get_or_insert (e, &existed);
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if (!existed)
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c = 0;
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return c;
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}
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inline gcov_type &
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bb_gcov_count (basic_block bb)
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{
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return bb_gcov_counts[bb->index];
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}
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typedef struct gcov_working_set_info gcov_working_set_t;
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extern gcov_working_set_t *find_working_set (unsigned pct_times_10);
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extern void add_working_set (gcov_working_set_t *);
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/* Smoothes the initial assigned basic block and edge counts using
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a minimum cost flow algorithm. */
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extern void mcf_smooth_cfg (void);
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extern gcov_type sum_edge_counts (vec<edge, va_gc> *edges);
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extern void init_node_map (bool);
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extern void del_node_map (void);
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extern void get_working_sets (void);
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/* Counter summary from the last set of coverage counts read by
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profile.c. */
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extern struct gcov_summary *profile_info;
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#endif /* PROFILE_H */
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