1 /* Definitions of target machine for GNU compiler for Renesas / SuperH SH.
2 Copyright (C) 1993-2014 Free Software Foundation, Inc.
3 Contributed by Steve Chamberlain (sac@cygnus.com).
4 Improved by Jim Wilson (wilson@cygnus.com).
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_SH_PROTOS_H
23 #define GCC_SH_PROTOS_H
25 enum sh_function_kind
{
26 /* A function with normal C ABI */
28 /* A special function that guarantees that some otherwise call-clobbered
29 registers are not clobbered. These can't go through the SH5 resolver,
30 because it only saves argument passing registers. */
32 /* A special function that should be linked statically. These are typically
33 smaller or not much larger than a PLT entry.
34 Some also have a non-standard ABI which precludes dynamic linking. */
39 struct sh_atomic_model
52 /* If strict is set, disallow mixing of different models, as it would
57 /* Name string as it was specified on the command line. */
60 /* Name string as it is used in C/C++ defines. */
61 const char* cdef_name
;
63 /* GBR offset variable for TCB model. */
67 extern const sh_atomic_model
& selected_atomic_model (void);
69 /* Shortcuts to check the currently selected atomic model. */
70 #define TARGET_ATOMIC_ANY \
71 selected_atomic_model ().type != sh_atomic_model::none
73 #define TARGET_ATOMIC_STRICT \
74 selected_atomic_model ().strict
76 #define TARGET_ATOMIC_SOFT_GUSA \
77 selected_atomic_model ().type == sh_atomic_model::soft_gusa
79 #define TARGET_ATOMIC_HARD_LLCS \
80 selected_atomic_model ().type == sh_atomic_model::hard_llcs
82 #define TARGET_ATOMIC_SOFT_TCB \
83 selected_atomic_model ().type == sh_atomic_model::soft_tcb
85 #define TARGET_ATOMIC_SOFT_TCB_GBR_OFFSET_RTX \
86 GEN_INT (selected_atomic_model ().tcb_gbr_offset)
88 #define TARGET_ATOMIC_SOFT_IMASK \
89 selected_atomic_model ().type == sh_atomic_model::soft_imask
92 extern rtx
sh_fsca_sf2int (void);
93 extern rtx
sh_fsca_int2sf (void);
95 /* Declare functions defined in sh.c and used in templates. */
97 extern const char *output_branch (int, rtx_insn
*, rtx
*);
98 extern const char *output_ieee_ccmpeq (rtx_insn
*, rtx
*);
99 extern const char *output_branchy_insn (enum rtx_code
, const char *,
101 extern const char *output_movedouble (rtx
, rtx
[], machine_mode
);
102 extern const char *output_movepcrel (rtx
, rtx
[], machine_mode
);
103 extern const char *output_far_jump (rtx_insn
*, rtx
);
105 extern rtx
sfunc_uses_reg (rtx_insn
*);
106 extern int barrier_align (rtx_insn
*);
107 extern int sh_loop_align (rtx_insn
*);
108 extern bool fp_zero_operand (rtx
);
109 extern bool fp_one_operand (rtx
);
110 extern bool sh_legitimate_index_p (machine_mode
, rtx
, bool, bool);
111 extern bool sh_legitimize_reload_address (rtx
*, machine_mode
, int, int);
112 extern rtx
legitimize_pic_address (rtx
, machine_mode
, rtx
);
113 extern bool nonpic_symbol_mentioned_p (rtx
);
114 extern void output_pic_addr_const (FILE *, rtx
);
115 extern bool expand_block_move (rtx
*);
116 extern void prepare_move_operands (rtx
[], machine_mode mode
);
117 extern bool sh_expand_cmpstr (rtx
*);
118 extern bool sh_expand_cmpnstr (rtx
*);
119 extern bool sh_expand_strlen (rtx
*);
120 extern void sh_expand_setmem (rtx
*);
121 extern enum rtx_code
prepare_cbranch_operands (rtx
*, machine_mode mode
,
122 enum rtx_code comparison
);
123 extern void expand_cbranchsi4 (rtx
*operands
, enum rtx_code comparison
, int);
124 extern bool expand_cbranchdi4 (rtx
*operands
, enum rtx_code comparison
);
125 extern void sh_emit_scc_to_t (enum rtx_code
, rtx
, rtx
);
126 extern rtx
sh_emit_cheap_store_flag (machine_mode
, enum rtx_code
, rtx
, rtx
);
127 extern void sh_emit_compare_and_branch (rtx
*, machine_mode
);
128 extern void sh_emit_compare_and_set (rtx
*, machine_mode
);
129 extern bool sh_ashlsi_clobbers_t_reg_p (rtx
);
130 extern bool sh_lshrsi_clobbers_t_reg_p (rtx
);
131 extern void gen_shifty_op (int, rtx
*);
132 extern void gen_shifty_hi_op (int, rtx
*);
133 extern bool expand_ashiftrt (rtx
*);
134 extern bool sh_dynamicalize_shift_p (rtx
);
135 extern int shl_and_kind (rtx
, rtx
, int *);
136 extern int shl_and_length (rtx
);
137 extern int shl_and_scr_length (rtx
);
138 extern bool gen_shl_and (rtx
, rtx
, rtx
, rtx
);
139 extern int shl_sext_kind (rtx
, rtx
, int *);
140 extern int shl_sext_length (rtx
);
141 extern bool gen_shl_sext (rtx
, rtx
, rtx
, rtx
);
142 extern rtx
gen_datalabel_ref (rtx
);
143 extern int regs_used (rtx
, int);
144 extern void fixup_addr_diff_vecs (rtx_insn
*);
145 extern int get_dest_uid (rtx
, int);
146 extern void final_prescan_insn (rtx_insn
*, rtx
*, int);
147 extern enum tls_model
tls_symbolic_operand (rtx
, machine_mode
);
148 extern bool system_reg_operand (rtx
, machine_mode
);
149 extern bool reg_unused_after (rtx
, rtx_insn
*);
150 extern int sh_insn_length_adjustment (rtx_insn
*);
151 extern bool sh_can_redirect_branch (rtx_insn
*, rtx_insn
*);
152 extern void sh_expand_unop_v2sf (enum rtx_code
, rtx
, rtx
);
153 extern void sh_expand_binop_v2sf (enum rtx_code
, rtx
, rtx
, rtx
);
154 extern bool sh_expand_t_scc (rtx
*);
155 extern rtx
sh_gen_truncate (machine_mode
, rtx
, int);
156 extern bool sh_vector_mode_supported_p (machine_mode
);
157 extern bool sh_cfun_trap_exit_p (void);
158 extern rtx
sh_find_equiv_gbr_addr (rtx_insn
* cur_insn
, rtx mem
);
159 extern int sh_eval_treg_value (rtx op
);
160 extern HOST_WIDE_INT
sh_disp_addr_displacement (rtx mem_op
);
161 extern int sh_max_mov_insn_displacement (machine_mode mode
, bool consider_sh2a
);
163 /* Result value of sh_find_set_of_reg. */
166 /* The insn where sh_find_set_of_reg stopped looking.
167 Can be NULL_RTX if the end of the insn list was reached. */
170 /* The set rtx of the specified reg if found, NULL_RTX otherwise. */
173 /* The set source rtx of the specified reg if found, NULL_RTX otherwise.
174 Usually, this is the most interesting return value. */
178 extern set_of_reg
sh_find_set_of_reg (rtx reg
, rtx insn
, rtx_insn
*(*stepfunc
)(rtx
));
179 extern bool sh_is_logical_t_store_expr (rtx op
, rtx insn
);
180 extern rtx
sh_try_omit_signzero_extend (rtx extended_op
, rtx insn
);
181 #endif /* RTX_CODE */
183 extern void sh_cpu_cpp_builtins (cpp_reader
* pfile
);
185 extern const char *output_jump_label_table (void);
186 extern rtx
get_t_reg_rtx (void);
187 extern int sh_media_register_for_return (void);
188 extern void sh_expand_prologue (void);
189 extern void sh_expand_epilogue (bool);
190 extern void sh_set_return_address (rtx
, rtx
);
191 extern int initial_elimination_offset (int, int);
192 extern bool sh_hard_regno_rename_ok (unsigned int, unsigned int);
193 extern bool sh_cfun_interrupt_handler_p (void);
194 extern bool sh_cfun_resbank_handler_p (void);
195 extern bool sh_attr_renesas_p (const_tree
);
196 extern bool sh_cfun_attr_renesas_p (void);
197 extern bool sh_cannot_change_mode_class
198 (machine_mode
, machine_mode
, enum reg_class
);
199 extern bool sh_small_register_classes_for_mode_p (machine_mode
);
200 extern void sh_mark_label (rtx
, int);
201 extern bool check_use_sfunc_addr (rtx_insn
*, rtx
);
204 extern void fpscr_set_from_mem (int, HARD_REG_SET
);
207 extern void sh_pr_interrupt (struct cpp_reader
*);
208 extern void sh_pr_trapa (struct cpp_reader
*);
209 extern void sh_pr_nosave_low_regs (struct cpp_reader
*);
210 extern rtx
function_symbol (rtx
, const char *, enum sh_function_kind
);
211 extern rtx
sh_get_pr_initial_val (void);
213 extern void sh_init_cumulative_args (CUMULATIVE_ARGS
*, tree
, rtx
, tree
,
214 signed int, machine_mode
);
215 extern rtx
sh_dwarf_register_span (rtx
);
217 extern rtx
replace_n_hard_rtx (rtx
, rtx
*, int , int);
218 extern int shmedia_cleanup_truncate (rtx
);
220 extern bool sh_contains_memref_p (rtx
);
221 extern bool sh_loads_bankedreg_p (rtx
);
222 extern rtx
shmedia_prepare_call_address (rtx fnaddr
, int is_sibcall
);
223 extern int sh2a_get_function_vector_number (rtx
);
224 extern bool sh2a_is_function_vector_call (rtx
);
225 extern void sh_fix_range (const char *);
226 extern bool sh_hard_regno_mode_ok (unsigned int, machine_mode
);
227 extern bool sh_can_use_simple_return_p (void);
228 #endif /* ! GCC_SH_PROTOS_H */