gcc/profile.h

   1 /* Header file for minimum-cost maximal flow routines used to smooth basic
   2    block and edge frequency counts.
   3    Copyright (C) 2008-2013 Free Software Foundation, Inc.
   4    Contributed by Paul Yuan (yingbo.com@gmail.com)
   5        and Vinodha Ramasamy (vinodha@google.com).
   6
   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.
  12
  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.
  17
  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/>.  */
  21
  22 #ifndef PROFILE_H
  23 #define PROFILE_H
  24
  25 /* Additional information about edges. */
  26 struct edge_info
  27 {
  28   unsigned int count_valid:1;
  29
  30   /* Is on the spanning tree.  */
  31   unsigned int on_tree:1;
  32
  33   /* Pretend this edge does not exist (it is abnormal and we've
  34      inserted a fake to compensate).  */
  35   unsigned int ignore:1;
  36 };
  37
  38 #define EDGE_INFO(e)  ((struct edge_info *) (e)->aux)
  39
  40 /* Smoothes the initial assigned basic block and edge counts using
  41    a minimum cost flow algorithm. */
  42 extern void mcf_smooth_cfg (void);
  43
  44 extern gcov_type sum_edge_counts (vec<edge, va_gc> *edges);
  45
  46 extern void init_node_map (void);
  47 extern void del_node_map (void);
  48
  49 extern void get_working_sets (void);
  50
  51 /* In predict.c.  */
  52 extern gcov_type get_hot_bb_threshold (void);
  53 extern void set_hot_bb_threshold (gcov_type);
  54
  55 #endif /* PROFILE_H */