1/* Prototypes of target machine for GNU compiler for Xtensa.
2   Copyright (C) 2001-2015 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 3, 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 COPYING3.  If not see
19<http://www.gnu.org/licenses/>.  */
20
21#ifndef __XTENSA_PROTOS_H__
22#define __XTENSA_PROTOS_H__
23
24/* Functions to test whether an immediate fits in a given field.  */
25extern bool xtensa_simm8 (HOST_WIDE_INT);
26extern bool xtensa_simm8x256 (HOST_WIDE_INT);
27extern bool xtensa_simm12b (HOST_WIDE_INT);
28extern bool xtensa_b4const_or_zero (HOST_WIDE_INT);
29extern bool xtensa_b4constu (HOST_WIDE_INT);
30extern bool xtensa_mask_immediate (HOST_WIDE_INT);
31extern bool xtensa_mem_offset (unsigned, machine_mode);
32
33/* Functions within xtensa.c that we reference.  */
34#ifdef RTX_CODE
35extern int xt_true_regnum (rtx);
36extern int xtensa_valid_move (machine_mode, rtx *);
37extern int smalloffset_mem_p (rtx);
38extern int constantpool_mem_p (rtx);
39extern void xtensa_extend_reg (rtx, rtx);
40extern void xtensa_expand_conditional_branch (rtx *, machine_mode);
41extern int xtensa_expand_conditional_move (rtx *, int);
42extern int xtensa_expand_scc (rtx *, machine_mode);
43extern int xtensa_expand_block_move (rtx *);
44extern void xtensa_split_operand_pair (rtx *, machine_mode);
45extern int xtensa_emit_move_sequence (rtx *, machine_mode);
46extern rtx xtensa_copy_incoming_a7 (rtx);
47extern void xtensa_expand_nonlocal_goto (rtx *);
48extern void xtensa_expand_compare_and_swap (rtx, rtx, rtx, rtx);
49extern void xtensa_expand_atomic (enum rtx_code, rtx, rtx, rtx, bool);
50extern void xtensa_emit_loop_end (rtx_insn *, rtx *);
51extern char *xtensa_emit_branch (bool, bool, rtx *);
52extern char *xtensa_emit_bit_branch (bool, bool, rtx *);
53extern char *xtensa_emit_movcc (bool, bool, bool, rtx *);
54extern char *xtensa_emit_call (int, rtx *);
55extern bool xtensa_tls_referenced_p (rtx);
56
57#ifdef TREE_CODE
58extern void init_cumulative_args (CUMULATIVE_ARGS *, int);
59#endif /* TREE_CODE */
60
61extern void print_operand (FILE *, rtx, int);
62extern void print_operand_address (FILE *, rtx);
63extern void xtensa_output_literal (FILE *, rtx, machine_mode, int);
64extern void xtensa_set_return_address (rtx, rtx);
65extern rtx xtensa_return_addr (int, rtx);
66#endif /* RTX_CODE */
67
68extern void xtensa_setup_frame_addresses (void);
69extern int xtensa_dbx_register_number (int);
70extern long compute_frame_size (int);
71extern void xtensa_expand_prologue (void);
72extern void xtensa_expand_epilogue (void);
73extern void order_regs_for_local_alloc (void);
74extern enum reg_class xtensa_regno_to_class (int regno);
75
76#endif /* !__XTENSA_PROTOS_H__ */
77