re PR target/57744 (Power8 support has problems with quad word atomic instructions)
[official-gcc.git] / gcc / bb-reorder.h
blob025300ca4819a0b2b2371e0181596d153f5aff7e
1 /* Basic block reordering routines for the GNU compiler.
2 Copyright (C) 2000-2013 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
11 GCC is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14 License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_BB_REORDER
21 #define GCC_BB_REORDER
23 /* Target-specific globals. */
24 struct target_bb_reorder {
25 /* Length of unconditional jump instruction. */
26 int x_uncond_jump_length;
29 extern GTY(()) struct target_bb_reorder default_target_bb_reorder;
30 #if SWITCHABLE_TARGET
31 extern struct target_bb_reorder *this_target_bb_reorder;
32 #else
33 #define this_target_bb_reorder (&default_target_bb_reorder)
34 #endif
36 extern int get_uncond_jump_length (void);
38 extern void insert_section_boundary_note (void);
40 #endif