xtensa-protos.h revision 1.1.1.1 
1/* Prototypes of target machine for GNU compiler for Xtensa.
2   Copyright 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
3   Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING.  If not, write to the Free
19Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
2002110-1301, USA.  */
21
22#ifndef __XTENSA_PROTOS_H__
23#define __XTENSA_PROTOS_H__
24
25/* Functions to test whether an immediate fits in a given field.  */
26extern bool xtensa_simm8 (HOST_WIDE_INT);
27extern bool xtensa_simm8x256 (HOST_WIDE_INT);
28extern bool xtensa_simm12b (HOST_WIDE_INT);
29extern bool xtensa_b4const_or_zero (HOST_WIDE_INT);
30extern bool xtensa_b4constu (HOST_WIDE_INT);
31extern bool xtensa_mask_immediate (HOST_WIDE_INT);
32extern bool xtensa_const_ok_for_letter_p (HOST_WIDE_INT, int);
33extern bool xtensa_mem_offset (unsigned, enum machine_mode);
34
35/* Functions within xtensa.c that we reference.  */
36#ifdef RTX_CODE
37extern int xt_true_regnum (rtx);
38extern int xtensa_valid_move (enum machine_mode, rtx *);
39extern int smalloffset_mem_p (rtx);
40extern int constantpool_address_p (rtx);
41extern int constantpool_mem_p (rtx);
42extern void xtensa_extend_reg (rtx, rtx);
43extern bool xtensa_extra_constraint (rtx, int);
44extern void xtensa_expand_conditional_branch (rtx *, enum rtx_code);
45extern int xtensa_expand_conditional_move (rtx *, int);
46extern int xtensa_expand_scc (rtx *);
47extern int xtensa_expand_block_move (rtx *);
48extern void xtensa_split_operand_pair (rtx *, enum machine_mode);
49extern int xtensa_emit_move_sequence (rtx *, enum machine_mode);
50extern rtx xtensa_copy_incoming_a7 (rtx);
51extern void xtensa_expand_nonlocal_goto (rtx *);
52extern void xtensa_emit_loop_end (rtx, rtx *);
53extern char *xtensa_emit_call (int, rtx *);
54
55#ifdef TREE_CODE
56extern void init_cumulative_args (CUMULATIVE_ARGS *, int);
57extern void xtensa_va_start (tree, rtx);
58#endif /* TREE_CODE */
59
60extern void print_operand (FILE *, rtx, int);
61extern void print_operand_address (FILE *, rtx);
62extern void xtensa_output_literal (FILE *, rtx, enum machine_mode, int);
63extern rtx xtensa_return_addr (int, rtx);
64extern enum reg_class xtensa_preferred_reload_class (rtx, enum reg_class, int);
65extern enum reg_class xtensa_secondary_reload_class (enum reg_class,
66						     enum machine_mode, rtx,
67						     int);
68#endif /* RTX_CODE */
69
70#ifdef TREE_CODE
71extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode, tree);
72extern struct rtx_def *function_arg (CUMULATIVE_ARGS *, enum machine_mode,
73				     tree, int);
74#endif /* TREE_CODE */
75
76extern void xtensa_setup_frame_addresses (void);
77extern int xtensa_dbx_register_number (int);
78extern void override_options (void);
79extern long compute_frame_size (int);
80extern int xtensa_frame_pointer_required (void);
81extern void xtensa_expand_prologue (void);
82extern void order_regs_for_local_alloc (void);
83
84#endif /* !__XTENSA_PROTOS_H__ */
85