GCC Middle and Back End API Reference
lra.h
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1 /* Communication between the Local Register Allocator (LRA) and
2  the rest of the compiler.
3  Copyright (C) 2010-2013 Free Software Foundation, Inc.
4  Contributed by Vladimir Makarov <vmakarov@redhat.com>.
5 
6 This file is part of GCC.
7 
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 extern bool lra_simple_p;
23 
24 /* Return the allocno reg class of REGNO. If it is a reload pseudo,
25  the pseudo should finally get hard register of the allocno
26  class. */
27 static inline enum reg_class
28 lra_get_allocno_class (int regno)
29 {
30  resize_reg_info ();
31  return reg_allocno_class (regno);
32 }
33 
34 extern rtx lra_create_new_reg (enum machine_mode, rtx, enum reg_class,
35  const char *);
36 extern void lra_init_elimination (void);
37 extern rtx lra_eliminate_regs (rtx, enum machine_mode, rtx);
38 extern void lra (FILE *);
39 extern void lra_init_once (void);
40 extern void lra_init (void);
41 extern void lra_finish_once (void);