* tree-ssa-loop-ivopts.c (ivopts_estimate_reg_pressure): New
[official-gcc.git] / gcc / profile.h
blob5ff806e5535d77977c197152690feafd5069477b
1 /* Header file for minimum-cost maximal flow routines used to smooth basic
2 block and edge frequency counts.
3 Copyright (C) 2008-2017 Free Software Foundation, Inc.
4 Contributed by Paul Yuan (yingbo.com@gmail.com)
5 and Vinodha Ramasamy (vinodha@google.com).
7 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
11 version.
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef PROFILE_H
23 #define PROFILE_H
25 /* Additional information about edges. */
26 struct edge_profile_info
28 unsigned int count_valid:1;
30 /* Is on the spanning tree. */
31 unsigned int on_tree:1;
33 /* Pretend this edge does not exist (it is abnormal and we've
34 inserted a fake to compensate). */
35 unsigned int ignore:1;
38 #define EDGE_INFO(e) ((struct edge_profile_info *) (e)->aux)
40 /* Helpers annotating edges/basic blocks to GCOV counts. */
42 extern vec<gcov_type> bb_gcov_counts;
43 extern hash_map<edge,gcov_type> edge_gcov_counts;
45 inline gcov_type &
46 edge_gcov_count (edge e)
48 bool existed;
49 gcov_type &c = edge_gcov_counts.get_or_insert (e, &existed);
50 if (!existed)
51 c = 0;
52 return c;
55 inline gcov_type &
56 bb_gcov_count (basic_block bb)
58 return bb_gcov_counts[bb->index];
61 typedef struct gcov_working_set_info gcov_working_set_t;
62 extern gcov_working_set_t *find_working_set (unsigned pct_times_10);
63 extern void add_working_set (gcov_working_set_t *);
65 /* Smoothes the initial assigned basic block and edge counts using
66 a minimum cost flow algorithm. */
67 extern void mcf_smooth_cfg (void);
69 extern gcov_type sum_edge_counts (vec<edge, va_gc> *edges);
71 extern void init_node_map (bool);
72 extern void del_node_map (void);
74 extern void get_working_sets (void);
76 /* Counter summary from the last set of coverage counts read by
77 profile.c. */
78 extern const struct gcov_ctr_summary *profile_info;
80 #endif /* PROFILE_H */