* java/util/Properties.java (load): Only skip line if the first
[official-gcc.git] / gcc / cfglayout.h
blobaec5e7ebba319c2e362045a76f5caef7abfffe29
1 /* Basic block reordering routines for the GNU compiler.
2 Copyright (C) 2000 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 2, 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 COPYING. If not, write to the Free
18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
19 02111-1307, USA. */
21 /* Structure to hold information about the blocks during reordering. */
22 typedef struct reorder_block_def
24 rtx header;
25 rtx footer;
26 basic_block next;
27 basic_block original;
28 /* Used by loop copying. */
29 basic_block copy;
30 int duplicated;
32 /* These fields are used by bb-reorder pass. */
33 int visited;
34 } *reorder_block_def;
36 #define RBI(BB) ((reorder_block_def) (BB)->aux)
38 extern void cfg_layout_initialize PARAMS ((struct loops *));
39 extern void cfg_layout_finalize PARAMS ((void));
40 extern bool cfg_layout_can_duplicate_bb_p PARAMS ((basic_block));
41 extern basic_block cfg_layout_duplicate_bb PARAMS ((basic_block, edge));
42 extern void scope_to_insns_initialize PARAMS ((void));
43 extern void scope_to_insns_finalize PARAMS ((void));
44 extern bool cfg_layout_redirect_edge PARAMS ((edge, basic_block));
45 extern edge cfg_layout_split_block PARAMS ((basic_block, rtx));