1 /* Definitions of target machine for GNU compiler. Sun 68000/68020 version.
2 Copyright (C) 2000-2023 Free Software Foundation, Inc.
3
4 This file is part of GCC.
5
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
10
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
19
20 /* Define functions defined in aux-output.c and used in templates. */
21
22 #ifdef RTX_CODE
23 extern enum m68k_function_kind m68k_get_function_kind (tree);
24 extern HOST_WIDE_INT m68k_initial_elimination_offset (int from, int to);
25
26 extern void split_di (rtx[], int, rtx[], rtx[]);
27
28 extern bool valid_mov3q_const (HOST_WIDE_INT);
29 extern const char *output_move_simode (rtx *);
30 extern const char *output_move_himode (rtx *);
31 extern const char *output_move_qimode (rtx *);
32 extern const char *output_move_stricthi (rtx *);
33 extern const char *output_move_strictqi (rtx *);
34 extern const char *output_move_double (rtx *);
35 extern const char *output_move_const_single (rtx *);
36 extern const char *output_move_const_double (rtx *);
37 extern const char *output_btst (rtx *, rtx, rtx, rtx_insn *, int);
38 extern const char *output_scc_di (rtx, rtx, rtx, rtx);
39 extern const char *output_addsi3 (rtx *);
40 extern const char *output_andsi3 (rtx *);
41 extern const char *output_iorsi3 (rtx *);
42 extern const char *output_xorsi3 (rtx *);
43 extern const char *output_call (rtx);
44 extern const char *output_sibcall (rtx);
45 extern void m68k_init_cc ();
46 extern void output_dbcc_and_branch (rtx *, rtx_code);
47 extern rtx_code m68k_output_compare_di (rtx, rtx, rtx, rtx, rtx_insn *, rtx_code);
48 extern rtx_code m68k_output_compare_si (rtx, rtx, rtx_code);
49 extern rtx_code m68k_output_compare_hi (rtx, rtx, rtx_code);
50 extern rtx_code m68k_output_compare_qi (rtx, rtx, rtx_code);
51 extern rtx_code m68k_output_compare_fp (rtx, rtx, rtx_code);
52 extern rtx_code m68k_output_btst (rtx, rtx, rtx_code, int);
53 extern rtx_code m68k_output_bftst (rtx, rtx, rtx, rtx_code);
54 extern rtx_code m68k_find_flags_value (rtx, rtx, rtx_code);
55
56 extern const char *m68k_output_scc (rtx_code);
57 extern const char *m68k_output_scc_float (rtx_code);
58 extern const char *m68k_output_branch_integer (rtx_code);
59 extern const char *m68k_output_branch_integer_rev (rtx_code);
60 extern const char *m68k_output_branch_float (rtx_code);
61 extern const char *m68k_output_branch_float_rev (rtx_code);
62 extern int floating_exact_log2 (rtx);
63 extern bool strict_low_part_peephole_ok (machine_mode mode,
64 rtx_insn *first_insn, rtx target);
65
66 /* Functions from m68k.cc used in macros. */
67 extern int standard_68881_constant_p (rtx);
68 extern void print_operand_address (FILE *, rtx);
69 extern void print_operand (FILE *, rtx, int);
70 extern void notice_update_cc (rtx, rtx);
71 extern bool m68k_legitimate_base_reg_p (rtx, bool);
72 extern bool m68k_legitimate_index_reg_p (rtx, bool);
73 extern bool m68k_illegitimate_symbolic_constant_p (rtx);
74 extern bool m68k_legitimate_constant_p (machine_mode, rtx);
75 extern bool m68k_matches_q_p (rtx);
76 extern bool m68k_matches_u_p (rtx);
77 extern rtx legitimize_pic_address (rtx, machine_mode, rtx);
78 extern rtx m68k_legitimize_tls_address (rtx);
79 extern bool m68k_tls_reference_p (rtx, bool);
80 extern int valid_dbcc_comparison_p_2 (rtx, machine_mode);
81 extern rtx m68k_libcall_value (machine_mode);
82 extern rtx m68k_function_value (const_tree, const_tree);
83 extern int emit_move_sequence (rtx *, machine_mode, rtx);
84 extern bool m68k_movem_pattern_p (rtx, rtx, HOST_WIDE_INT, bool);
85 extern const char *m68k_output_movem (rtx *, rtx, HOST_WIDE_INT, bool);
86 extern bool m68k_epilogue_uses (int);
87 extern void m68k_final_prescan_insn (rtx_insn *, rtx *, int);
88
89 /* Functions from m68k.cc used in constraints.md. */
90 extern rtx m68k_unwrap_symbol (rtx, bool);
91
92 /* Functions from m68k.cc used in genattrtab. */
93 #ifdef HAVE_ATTR_cpu
94 extern enum attr_cpu m68k_sched_cpu;
95 extern enum attr_mac m68k_sched_mac;
96
97 extern enum attr_opx_type m68k_sched_attr_opx_type (rtx_insn *, int);
98 extern enum attr_opy_type m68k_sched_attr_opy_type (rtx_insn *, int);
99 extern enum attr_size m68k_sched_attr_size (rtx_insn *);
100 extern enum attr_op_mem m68k_sched_attr_op_mem (rtx_insn *);
101 #endif /* HAVE_ATTR_cpu */
102
103 #endif /* RTX_CODE */
104
105 extern enum reg_class m68k_secondary_reload_class (enum reg_class,
106 machine_mode, rtx);
107 extern enum reg_class m68k_preferred_reload_class (rtx, enum reg_class);
108 extern void m68k_expand_prologue (void);
109 extern bool m68k_use_return_insn (void);
110 extern void m68k_expand_epilogue (bool);
111 extern const char *m68k_cpp_cpu_ident (const char *);
112 extern const char *m68k_cpp_cpu_family (const char *);
113 extern void init_68881_table (void);
114 extern rtx m68k_legitimize_call_address (rtx);
115 extern rtx m68k_legitimize_sibcall_address (rtx);
116 extern int m68k_hard_regno_rename_ok(unsigned int, unsigned int);
117 extern poly_int64 m68k_push_rounding (poly_int64);