xref: /dragonfly/contrib/gcc-8.0/gcc/lra.h (revision 38fd1498)
1*38fd1498Szrj /* Communication between the Local Register Allocator (LRA) and
2*38fd1498Szrj    the rest of the compiler.
3*38fd1498Szrj    Copyright (C) 2010-2018 Free Software Foundation, Inc.
4*38fd1498Szrj    Contributed by Vladimir Makarov <vmakarov@redhat.com>.
5*38fd1498Szrj 
6*38fd1498Szrj This file is part of GCC.
7*38fd1498Szrj 
8*38fd1498Szrj GCC is free software; you can redistribute it and/or modify it under
9*38fd1498Szrj the terms of the GNU General Public License as published by the Free
10*38fd1498Szrj Software Foundation; either version 3, or (at your option) any later
11*38fd1498Szrj version.
12*38fd1498Szrj 
13*38fd1498Szrj GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14*38fd1498Szrj WARRANTY; without even the implied warranty of MERCHANTABILITY or
15*38fd1498Szrj FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16*38fd1498Szrj for more details.
17*38fd1498Szrj 
18*38fd1498Szrj You should have received a copy of the GNU General Public License
19*38fd1498Szrj along with GCC; see the file COPYING3.	If not see
20*38fd1498Szrj <http://www.gnu.org/licenses/>.	 */
21*38fd1498Szrj 
22*38fd1498Szrj #ifndef GCC_LRA_H
23*38fd1498Szrj #define GCC_LRA_H
24*38fd1498Szrj 
25*38fd1498Szrj extern bool lra_simple_p;
26*38fd1498Szrj 
27*38fd1498Szrj /* Return the allocno reg class of REGNO.  If it is a reload pseudo,
28*38fd1498Szrj    the pseudo should finally get hard register of the allocno
29*38fd1498Szrj    class.  */
30*38fd1498Szrj static inline enum reg_class
lra_get_allocno_class(int regno)31*38fd1498Szrj lra_get_allocno_class (int regno)
32*38fd1498Szrj {
33*38fd1498Szrj   resize_reg_info ();
34*38fd1498Szrj   return reg_allocno_class (regno);
35*38fd1498Szrj }
36*38fd1498Szrj 
37*38fd1498Szrj extern rtx lra_create_new_reg (machine_mode, rtx, enum reg_class,
38*38fd1498Szrj 			       const char *);
39*38fd1498Szrj extern rtx lra_eliminate_regs (rtx, machine_mode, rtx);
40*38fd1498Szrj extern void lra (FILE *);
41*38fd1498Szrj extern void lra_init_once (void);
42*38fd1498Szrj extern void lra_finish_once (void);
43*38fd1498Szrj 
44*38fd1498Szrj #endif /* GCC_LRA_H */
45