1/* Prototypes for alpha.cc functions used in the md file & elsewhere.
2   Copyright (C) 1999-2022 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 3, or (at your option)
9any later version.
10
11GCC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3.  If not see
18<http://www.gnu.org/licenses/>.  */
19
20extern int alpha_next_sequence_number;
21
22extern void literal_section (void);
23extern int zap_mask (HOST_WIDE_INT);
24extern bool direct_return (void);
25
26extern HOST_WIDE_INT alpha_initial_elimination_offset (unsigned int,
27						       unsigned int);
28extern void alpha_expand_prologue (void);
29extern void alpha_expand_epilogue (void);
30extern void alpha_output_filename (FILE *, const char *);
31
32extern bool alpha_legitimate_constant_p (machine_mode, rtx);
33extern rtx alpha_legitimize_reload_address (rtx, machine_mode,
34					    int, int, int);
35
36extern rtx split_small_symbolic_operand (rtx);
37
38extern void get_aligned_mem (rtx, rtx *, rtx *);
39extern rtx get_unaligned_address (rtx);
40extern rtx get_unaligned_offset (rtx, HOST_WIDE_INT);
41extern enum reg_class alpha_preferred_reload_class (rtx, enum reg_class);
42
43extern void alpha_set_memflags (rtx, rtx);
44extern bool alpha_split_const_mov (machine_mode, rtx *);
45extern bool alpha_expand_mov (machine_mode, rtx *);
46extern bool alpha_expand_mov_nobwx (machine_mode, rtx *);
47extern void alpha_expand_movmisalign (machine_mode, rtx *);
48extern void alpha_emit_floatuns (rtx[]);
49extern rtx alpha_emit_conditional_move (rtx, machine_mode);
50extern void alpha_split_tmode_pair (rtx[], machine_mode, bool);
51extern void alpha_split_tfmode_frobsign (rtx[], rtx (*)(rtx, rtx, rtx));
52extern void alpha_expand_unaligned_load (rtx, rtx, HOST_WIDE_INT,
53					 HOST_WIDE_INT, int);
54extern void alpha_expand_unaligned_store (rtx, rtx, HOST_WIDE_INT,
55					  HOST_WIDE_INT);
56extern int alpha_expand_block_move (rtx []);
57extern int alpha_expand_block_clear (rtx []);
58extern rtx alpha_expand_zap_mask (HOST_WIDE_INT);
59extern void alpha_expand_builtin_vector_binop (rtx (*)(rtx, rtx, rtx),
60					       machine_mode,
61					       rtx, rtx, rtx);
62extern void alpha_expand_builtin_establish_vms_condition_handler (rtx, rtx);
63extern void alpha_expand_builtin_revert_vms_condition_handler (rtx);
64
65extern rtx alpha_return_addr (int, rtx);
66extern rtx alpha_gp_save_rtx (void);
67extern void alpha_initialize_trampoline (rtx, rtx, rtx, int, int, int);
68
69extern rtx alpha_va_arg (tree, tree);
70
71extern void alpha_start_function (FILE *, const char *, tree);
72extern void alpha_end_function (FILE *, const char *, tree);
73
74extern bool alpha_find_lo_sum_using_gp (rtx);
75
76extern int alpha_store_data_bypass_p (rtx_insn *, rtx_insn *);
77
78#ifdef REAL_VALUE_TYPE
79extern int check_float_value (machine_mode, REAL_VALUE_TYPE *, int);
80#endif
81
82#ifdef RTX_CODE
83extern void alpha_emit_conditional_branch (rtx[], machine_mode);
84extern bool alpha_emit_setcc (rtx[], machine_mode);
85extern int alpha_split_conditional_move (enum rtx_code, rtx, rtx, rtx, rtx);
86extern void alpha_emit_xfloating_arith (enum rtx_code, rtx[]);
87extern void alpha_emit_xfloating_cvt (enum rtx_code, rtx[]);
88extern void alpha_split_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx,
89				   enum memmodel);
90extern void alpha_split_compare_and_swap (rtx op[]);
91extern void alpha_expand_compare_and_swap_12 (rtx op[]);
92extern void alpha_split_compare_and_swap_12 (rtx op[]);
93extern void alpha_split_atomic_exchange (rtx op[]);
94extern void alpha_expand_atomic_exchange_12 (rtx op[]);
95extern void alpha_split_atomic_exchange_12 (rtx op[]);
96#endif
97
98extern rtx alpha_use_linkage (rtx, bool, bool);
99
100#if TARGET_ABI_OPEN_VMS
101extern enum avms_arg_type alpha_arg_type (machine_mode);
102extern rtx alpha_arg_info_reg_val (CUMULATIVE_ARGS);
103extern void avms_asm_output_external (FILE *, tree, const char *);
104extern void vms_output_aligned_decl_common (FILE *, tree, const char *,
105					    unsigned HOST_WIDE_INT,
106					    unsigned int);
107extern HOST_WIDE_INT alpha_vms_initial_elimination_offset (unsigned int,
108							   unsigned int);
109#endif
110
111extern rtx unicosmk_add_call_info_word (rtx);
112
113extern bool some_small_symbolic_operand_int (rtx);
114extern int tls_symbolic_operand_1 (rtx, int, int);
115extern rtx resolve_reload_operand (rtx);
116
117namespace gcc { class context; }
118class rtl_opt_pass;
119
120extern rtl_opt_pass *make_pass_handle_trap_shadows (gcc::context *);
121extern rtl_opt_pass *make_pass_align_insns (gcc::context *);
122