1 /* Prototypes of target machine for GNU compiler. MIPS version.
2 Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
4 Contributed by A. Lichnewsky (lich@inria.inria.fr).
5 Changed by Michael Meissner (meissner@osf.org).
6 64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
7 Brendan Eich (brendan@microunity.com).
9 This file is part of GCC.
11 GCC is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
16 GCC is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING. If not, write to
23 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
24 Boston, MA 02110-1301, USA. */
26 #ifndef GCC_MIPS_PROTOS_H
27 #define GCC_MIPS_PROTOS_H
29 /* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
32 Used when none of the below apply.
35 The symbol refers to something in a small data section.
38 The symbol refers to something in the mips16 constant pool.
41 The symbol's value will be calculated by loading an address
42 from the GOT and then applying a 16-bit offset.
45 The symbol's value will be loaded directly from the GOT.
48 An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the
49 offset from _gp of the GOT entry.
52 An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the
53 the offset from _gp of the symbol's GOT entry.
56 Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
57 The GOT entry is allowed to point to a stub rather than to the
61 An UNSPEC wrapper around a function's address. It represents the
62 offset of _gp from the start of the function.
65 A thread-local symbol.
72 UNSPEC wrappers around SYMBOL_TLS, corresponding to the
73 thread-local storage relocation operators.
76 For a 64-bit symbolic address X, this is the value of
77 (%highest(X) << 16) + %higher(X).
80 For a 64-bit symbolic address X, this is the value of
81 (%higher(X) << 16) + %hi(X).
84 For a 64-bit symbolic address X, this is the value of
85 (%hi(X) << 16) + %lo(X).
88 An UNSPEC wrapper around any kind of address. It represents the
89 low 16 bits of that address. */
90 enum mips_symbol_type {
111 #define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
113 /* Identifiers a style of $gp initialization sequence.
116 No initialization sequence is needed.
119 The o32 and o64 PIC sequence (the kind traditionally generated
123 The n32 and n64 PIC sequence (the kind traditionally generated
127 The GNU absolute sequence, as generated by loadgp_absolute.
130 The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */
131 enum mips_loadgp_style {
139 struct mips16e_save_restore_info;
141 extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_type *);
142 extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, int);
143 extern bool mips_stack_address_p (rtx, enum machine_mode);
144 extern int mips_address_insns (rtx, enum machine_mode);
145 extern int mips_const_insns (rtx);
146 extern int mips_fetch_insns (rtx);
147 extern int mips_idiv_insns (void);
148 extern int fp_register_operand (rtx, enum machine_mode);
149 extern int lo_operand (rtx, enum machine_mode);
150 extern bool mips_legitimate_address_p (enum machine_mode, rtx, int);
151 extern rtx mips_split_symbol (rtx, rtx);
152 extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
153 extern bool mips_legitimize_address (rtx *, enum machine_mode);
154 extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
155 extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
157 extern int m16_uimm3_b (rtx, enum machine_mode);
158 extern int m16_simm4_1 (rtx, enum machine_mode);
159 extern int m16_nsimm4_1 (rtx, enum machine_mode);
160 extern int m16_simm5_1 (rtx, enum machine_mode);
161 extern int m16_nsimm5_1 (rtx, enum machine_mode);
162 extern int m16_uimm5_4 (rtx, enum machine_mode);
163 extern int m16_nuimm5_4 (rtx, enum machine_mode);
164 extern int m16_simm8_1 (rtx, enum machine_mode);
165 extern int m16_nsimm8_1 (rtx, enum machine_mode);
166 extern int m16_uimm8_1 (rtx, enum machine_mode);
167 extern int m16_nuimm8_1 (rtx, enum machine_mode);
168 extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
169 extern int m16_uimm8_4 (rtx, enum machine_mode);
170 extern int m16_nuimm8_4 (rtx, enum machine_mode);
171 extern int m16_simm8_8 (rtx, enum machine_mode);
172 extern int m16_nsimm8_8 (rtx, enum machine_mode);
174 extern rtx mips_subword (rtx, int);
175 extern bool mips_split_64bit_move_p (rtx, rtx);
176 extern void mips_split_64bit_move (rtx, rtx);
177 extern const char *mips_output_move (rtx, rtx);
178 extern void mips_restore_gp (void);
180 extern bool mips_emit_scc (enum rtx_code, rtx);
181 extern void gen_conditional_branch (rtx *, enum rtx_code);
182 extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
184 extern void gen_conditional_move (rtx *);
185 extern void mips_gen_conditional_trap (rtx *);
186 extern void mips_expand_call (rtx, rtx, rtx, rtx, int);
187 extern void mips_emit_fcc_reload (rtx, rtx, rtx);
188 extern void mips_set_return_address (rtx, rtx);
189 extern bool mips_expand_block_move (rtx, rtx, rtx);
191 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
192 extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
194 extern struct rtx_def *function_arg (const CUMULATIVE_ARGS *,
195 enum machine_mode, tree, int);
196 extern int function_arg_boundary (enum machine_mode, tree);
197 extern bool mips_pad_arg_upward (enum machine_mode, tree);
198 extern bool mips_pad_reg_upward (enum machine_mode, tree);
199 extern void mips_va_start (tree, rtx);
201 extern bool mips_expand_unaligned_load (rtx, rtx, unsigned int, int);
202 extern bool mips_expand_unaligned_store (rtx, rtx, unsigned int, int);
203 extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
204 extern void override_options (void);
205 extern void mips_conditional_register_usage (void);
206 extern void mips_order_regs_for_local_alloc (void);
207 extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
209 extern void print_operand (FILE *, rtx, int);
210 extern void print_operand_address (FILE *, rtx);
211 extern void mips_output_external (FILE *, tree, const char *);
212 extern void mips_output_filename (FILE *, const char *);
213 extern void mips_output_ascii (FILE *, const char *, size_t, const char *);
214 extern void mips_output_aligned_bss (FILE *, tree, const char *,
215 unsigned HOST_WIDE_INT, int);
216 extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
217 unsigned HOST_WIDE_INT,
219 extern void mips_declare_common_object (FILE *, const char *,
220 const char *, unsigned HOST_WIDE_INT,
222 extern void mips_declare_object (FILE *, const char *, const char *,
223 const char *, ...) ATTRIBUTE_PRINTF_4;
224 extern void mips_declare_object_name (FILE *, const char *, tree);
225 extern void mips_finish_declare_object (FILE *, tree, int, int);
227 extern bool mips_small_data_pattern_p (rtx);
228 extern rtx mips_rewrite_small_data (rtx);
229 extern HOST_WIDE_INT compute_frame_size (HOST_WIDE_INT);
230 extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
231 extern rtx mips_return_addr (int, rtx);
232 extern enum mips_loadgp_style mips_current_loadgp_style (void);
233 extern void mips_expand_prologue (void);
234 extern void mips_expand_epilogue (int);
235 extern int mips_can_use_return_insn (void);
236 extern struct rtx_def *mips_function_value (tree, tree, enum machine_mode);
238 extern bool mips_cannot_change_mode_class (enum machine_mode,
239 enum machine_mode, enum reg_class);
240 extern bool mips_dangerous_for_la25_p (rtx);
241 extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);
242 extern enum reg_class mips_secondary_reload_class (enum reg_class,
245 extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
246 extern int build_mips16_call_stub (rtx, rtx, rtx, int);
247 extern int mips_register_move_cost (enum machine_mode, enum reg_class,
250 extern int mips_adjust_insn_length (rtx, int);
251 extern const char *mips_output_load_label (void);
252 extern const char *mips_output_conditional_branch (rtx, rtx *, const char *,
254 extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool);
255 extern const char *mips_output_division (const char *, rtx *);
256 extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
257 extern bool mips_linked_madd_p (rtx, rtx);
258 extern int mips_store_data_bypass_p (rtx, rtx);
259 extern rtx mips_prefetch_cookie (rtx, rtx);
261 extern void irix_asm_output_align (FILE *, unsigned);
262 extern const char *current_section_name (void);
263 extern unsigned int current_section_flags (void);
264 extern bool mips_use_ins_ext_p (rtx, rtx, rtx);
266 extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
267 extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
268 struct mips16e_save_restore_info *);
270 #endif /* ! GCC_MIPS_PROTOS_H */