1 /* Definitions of target machine for GNU compiler.
2 Renesas H8/300 version
3 Copyright (C) 2000-2023 Free Software Foundation, Inc.
4 Contributed by Steve Chamberlain (sac@cygnus.com),
5 Jim Wilson (wilson@cygnus.com), and Doug Evans (dje@cygnus.com).
6
7 This file is part of GCC.
8
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
12 any later version.
13
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
22
23 #ifndef GCC_H8300_PROTOS_H
24 #define GCC_H8300_PROTOS_H
25
26 /* Declarations for functions used in insn-output.cc. */
27 #ifdef RTX_CODE
28 extern unsigned int compute_mov_length (rtx *);
29 extern const char *output_plussi (rtx *, bool);
30 extern unsigned int compute_plussi_length (rtx *, bool);
31 extern const char *output_a_shift (rtx[4], rtx_code);
32 extern unsigned int compute_a_shift_length (rtx[4], rtx_code);
33 extern const char *output_a_rotate (enum rtx_code, rtx *);
34 extern unsigned int compute_a_rotate_length (rtx *);
35 extern const char *output_simode_bld (int, rtx[]);
36 extern void final_prescan_insn (rtx_insn *, rtx *, int);
37 extern int h8300_expand_movsi (rtx[]);
38 extern machine_mode h8300_select_cc_mode (RTX_CODE, rtx, rtx);
39 extern const char *output_logical_op (machine_mode, rtx_code code,
40 rtx *, rtx_insn *);
41 extern unsigned int compute_logical_op_length (machine_mode, rtx_code,
42 rtx *, rtx_insn *);
43
44 extern int compute_a_shift_cc (rtx *, rtx_code);
45 #ifdef HAVE_ATTR_cc
46 extern enum attr_cc compute_plussi_cc (rtx *);
47 #endif
48 extern void h8300_expand_store (rtx[]);
49 extern bool expand_a_shift (machine_mode, enum rtx_code, rtx[]);
50 extern int h8300_shift_needs_scratch_p (int, machine_mode, rtx_code);
51 extern int expand_a_rotate (rtx[]);
52 extern int fix_bit_operand (rtx *, enum rtx_code);
53 extern int h8300_adjust_insn_length (rtx, int);
54 extern void split_adds_subs (machine_mode, rtx[]);
55
56 extern int h8300_eightbit_constant_address_p (rtx);
57 extern int h8300_tiny_constant_address_p (rtx);
58 extern int byte_accesses_mergeable_p (rtx, rtx);
59 extern int same_cmp_preceding_p (rtx_insn *);
60 extern int same_cmp_following_p (rtx_insn *);
61
62 /* Used in builtins.cc */
63 extern rtx h8300_return_addr_rtx (int, rtx);
64
65 /* Classifies an h8sx shift operation.
66
67 H8SX_SHIFT_NONE
68 The shift cannot be done in a single instruction.
69
70 H8SX_SHIFT_UNARY
71 The shift is effectively a unary operation. The instruction will
72 allow any sort of destination operand and have a format similar
73 to neg and not. This is true of certain power-of-2 shifts.
74
75 H8SX_SHIFT_BINARY
76 The shift is a binary operation. The destination must be a
77 register and the source can be a register or a constant. */
78 enum h8sx_shift_type {
79 H8SX_SHIFT_NONE,
80 H8SX_SHIFT_UNARY,
81 H8SX_SHIFT_BINARY
82 };
83
84 extern enum h8sx_shift_type h8sx_classify_shift (machine_mode, enum rtx_code, rtx);
85 extern int h8300_ldm_stm_parallel (rtvec, int, int);
86 #endif /* RTX_CODE */
87
88 #ifdef TREE_CODE
89 extern int h8300_funcvec_function_p (tree);
90 extern int h8300_eightbit_data_p (tree);
91 extern int h8300_tiny_data_p (tree);
92 #endif /* TREE_CODE */
93
94 extern int h8300_can_use_return_insn_p (void);
95 extern void h8300_expand_prologue (void);
96 extern void h8300_expand_epilogue (bool);
97 extern int h8300_current_function_interrupt_function_p (void);
98 extern int h8300_current_function_monitor_function_p (void);
99 extern int h8300_initial_elimination_offset (int, int);
100 extern int h8300_regs_ok_for_stm (int, rtx[]);
101 extern int h8300_hard_regno_rename_ok (unsigned int, unsigned int);
102 extern bool h8300_move_ok (rtx, rtx);
103 extern bool pre_incdec_with_reg (rtx, unsigned int);
104
105 struct cpp_reader;
106 extern void h8300_pr_interrupt (struct cpp_reader *);
107 extern void h8300_pr_saveall (struct cpp_reader *);
108 extern enum reg_class h8300_reg_class_from_letter (int);
109 extern unsigned int h8300_insn_length_from_table (rtx_insn *, rtx *);
110 extern const char * output_h8sx_shift (rtx *, int, int);
111 extern bool h8300_operands_match_p (rtx *);
112 extern bool h8sx_mergeable_memrefs_p (rtx, rtx);
113 extern poly_int64 h8300_push_rounding (poly_int64);
114
115 #endif /* ! GCC_H8300_PROTOS_H */