1 /* Prototypes of target machine for GNU compiler for Xtensa.
2 Copyright 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
3 Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 #ifndef __XTENSA_PROTOS_H__
22 #define __XTENSA_PROTOS_H__
24 /* Functions to test whether an immediate fits in a given field. */
25 extern bool xtensa_simm8 (HOST_WIDE_INT
);
26 extern bool xtensa_simm8x256 (HOST_WIDE_INT
);
27 extern bool xtensa_simm12b (HOST_WIDE_INT
);
28 extern bool xtensa_b4const_or_zero (HOST_WIDE_INT
);
29 extern bool xtensa_b4constu (HOST_WIDE_INT
);
30 extern bool xtensa_mask_immediate (HOST_WIDE_INT
);
31 extern bool xtensa_mem_offset (unsigned, enum machine_mode
);
33 /* Functions within xtensa.c that we reference. */
35 extern int xt_true_regnum (rtx
);
36 extern int xtensa_valid_move (enum machine_mode
, rtx
*);
37 extern int smalloffset_mem_p (rtx
);
38 extern int constantpool_address_p (rtx
);
39 extern int constantpool_mem_p (rtx
);
40 extern void xtensa_extend_reg (rtx
, rtx
);
41 extern void xtensa_expand_conditional_branch (rtx
*, enum rtx_code
);
42 extern int xtensa_expand_conditional_move (rtx
*, int);
43 extern int xtensa_expand_scc (rtx
*);
44 extern int xtensa_expand_block_move (rtx
*);
45 extern void xtensa_split_operand_pair (rtx
*, enum machine_mode
);
46 extern int xtensa_emit_move_sequence (rtx
*, enum machine_mode
);
47 extern rtx
xtensa_copy_incoming_a7 (rtx
);
48 extern void xtensa_expand_nonlocal_goto (rtx
*);
49 extern void xtensa_expand_compare_and_swap (rtx
, rtx
, rtx
, rtx
);
50 extern void xtensa_expand_atomic (enum rtx_code
, rtx
, rtx
, rtx
, bool);
51 extern void xtensa_emit_loop_end (rtx
, rtx
*);
52 extern char *xtensa_emit_branch (bool, bool, rtx
*);
53 extern char *xtensa_emit_bit_branch (bool, bool, rtx
*);
54 extern char *xtensa_emit_movcc (bool, bool, bool, rtx
*);
55 extern char *xtensa_emit_call (int, rtx
*);
56 extern bool xtensa_legitimate_address_p (enum machine_mode
, rtx
, bool);
57 extern rtx
xtensa_legitimize_address (rtx
, rtx
, enum machine_mode
);
60 extern void init_cumulative_args (CUMULATIVE_ARGS
*, int);
61 #endif /* TREE_CODE */
63 extern void print_operand (FILE *, rtx
, int);
64 extern void print_operand_address (FILE *, rtx
);
65 extern bool xtensa_output_addr_const_extra (FILE *, rtx
);
66 extern void xtensa_output_literal (FILE *, rtx
, enum machine_mode
, int);
67 extern rtx
xtensa_return_addr (int, rtx
);
68 extern enum reg_class
xtensa_preferred_reload_class (rtx
, enum reg_class
, int);
69 extern enum reg_class
xtensa_secondary_reload_class (enum reg_class
,
70 enum machine_mode
, rtx
,
72 extern void xtensa_initialize_trampoline (rtx
, rtx
, rtx
);
76 extern void function_arg_advance (CUMULATIVE_ARGS
*, enum machine_mode
, tree
);
77 extern struct rtx_def
*function_arg (CUMULATIVE_ARGS
*, enum machine_mode
,
79 extern int function_arg_boundary (enum machine_mode
, tree
);
80 #endif /* TREE_CODE */
82 extern void xtensa_setup_frame_addresses (void);
83 extern int xtensa_dbx_register_number (int);
84 extern void override_options (void);
85 extern long compute_frame_size (int);
86 extern int xtensa_frame_pointer_required (void);
87 extern void xtensa_expand_prologue (void);
88 extern void order_regs_for_local_alloc (void);
89 extern void xtensa_trampoline_template (FILE *);
91 #endif /* !__XTENSA_PROTOS_H__ */