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[thirdparty/gcc.git] / gcc / config / mips / mips-protos.h
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bd9f1972 1/* Prototypes of target machine for GNU compiler. MIPS version.
214be03f 2 Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
df770e04 3 1999, 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
bd9f1972
KG		 4 Contributed by A. Lichnewsky (lich@inria.inria.fr).
5 Changed by Michael Meissner (meissner@osf.org).
85f65093 6 64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
bd9f1972
KG		 7 Brendan Eich (brendan@microunity.com).
8
7ec022b2 9This file is part of GCC.
bd9f1972 10
7ec022b2 11GCC is free software; you can redistribute it and/or modify
bd9f1972 12it under the terms of the GNU General Public License as published by
2f83c7d6 13the Free Software Foundation; either version 3, or (at your option)
bd9f1972
KG		 14any later version.
15
7ec022b2 16GCC is distributed in the hope that it will be useful,
bd9f1972
KG		 17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19GNU General Public License for more details.
20
21You should have received a copy of the GNU General Public License
2f83c7d6
NC		 22along with GCC; see the file COPYING3. If not see
23<http://www.gnu.org/licenses/>. */
bd9f1972 24
88657302
RH		 25#ifndef GCC_MIPS_PROTOS_H
26#define GCC_MIPS_PROTOS_H
bd9f1972 27
e245bd81
RS		 28/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
29
30 SYMBOL_GENERAL
31 Used when none of the below apply.
32
33 SYMBOL_SMALL_DATA
34 The symbol refers to something in a small data section.
35
36 SYMBOL_CONSTANT_POOL
37 The symbol refers to something in the mips16 constant pool.
38
08e7ceb3
RS		 39 SYMBOL_GOT_PAGE_OFST
40 The symbol's value will be calculated by loading an address
41 from the GOT and then applying a 16-bit offset.
e245bd81 42
08e7ceb3
RS		 43 SYMBOL_GOT_DISP
44 The symbol's value will be loaded directly from the GOT.
e245bd81
RS		 45
46 SYMBOL_GOTOFF_PAGE
08e7ceb3
RS		 47 An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the
48 offset from _gp of the GOT entry.
e245bd81 49
08e7ceb3
RS		 50 SYMBOL_GOTOFF_DISP
51 An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the
e245bd81
RS		 52 the offset from _gp of the symbol's GOT entry.
53
54 SYMBOL_GOTOFF_CALL
08e7ceb3 55 Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
e245bd81
RS		 56 The GOT entry is allowed to point to a stub rather than to the
57 function itself.
58
59 SYMBOL_GOTOFF_LOADGP
60 An UNSPEC wrapper around a function's address. It represents the
61 offset of _gp from the start of the function.
62
69229b81
DJ		 63 SYMBOL_TLS
64 A thread-local symbol.
65
66 SYMBOL_TLSGD
67 SYMBOL_TLSLDM
68 SYMBOL_DTPREL
69 SYMBOL_GOTTPREL
70 SYMBOL_TPREL
71 UNSPEC wrappers around SYMBOL_TLS, corresponding to the
72 thread-local storage relocation operators.
73
e245bd81
RS		 74 SYMBOL_64_HIGH
75 For a 64-bit symbolic address X, this is the value of
76 (%highest(X) << 16) + %higher(X).
77
78 SYMBOL_64_MID
79 For a 64-bit symbolic address X, this is the value of
80 (%higher(X) << 16) + %hi(X).
81
82 SYMBOL_64_LOW
83 For a 64-bit symbolic address X, this is the value of
8cb6400c
RS		 84 (%hi(X) << 16) + %lo(X).
85
86 SYMBOL_HALF
87 An UNSPEC wrapper around any kind of address. It represents the
88 low 16 bits of that address. */
e245bd81
RS		 89enum mips_symbol_type {
90 SYMBOL_GENERAL,
91 SYMBOL_SMALL_DATA,
92 SYMBOL_CONSTANT_POOL,
08e7ceb3
RS		 93 SYMBOL_GOT_PAGE_OFST,
94 SYMBOL_GOT_DISP,
e245bd81 95 SYMBOL_GOTOFF_PAGE,
08e7ceb3 96 SYMBOL_GOTOFF_DISP,
e245bd81
RS		 97 SYMBOL_GOTOFF_CALL,
98 SYMBOL_GOTOFF_LOADGP,
69229b81
DJ		 99 SYMBOL_TLS,
100 SYMBOL_TLSGD,
101 SYMBOL_TLSLDM,
102 SYMBOL_DTPREL,
103 SYMBOL_GOTTPREL,
104 SYMBOL_TPREL,
e245bd81
RS		 105 SYMBOL_64_HIGH,
106 SYMBOL_64_MID,
8cb6400c
RS		 107 SYMBOL_64_LOW,
108 SYMBOL_HALF
e245bd81 109};
8cb6400c 110#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
e245bd81 111
d9870b7e
RS		 112/* Identifiers a style of $gp initialization sequence.
113
114 LOADGP_NONE
115 No initialization sequence is needed.
116
117 LOADGP_OLDABI
118 The o32 and o64 PIC sequence (the kind traditionally generated
119 by .cpload).
120
121 LOADGP_NEWABI
122 The n32 and n64 PIC sequence (the kind traditionally generated
123 by .cpsetup).
124
125 LOADGP_ABSOLUTE
8cb6400c
RS		 126 The GNU absolute sequence, as generated by loadgp_absolute.
127
128 LOADGP_RTP
129 The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */
d9870b7e
RS		 130enum mips_loadgp_style {
131 LOADGP_NONE,
132 LOADGP_OLDABI,
133 LOADGP_NEWABI,
8cb6400c
RS		 134 LOADGP_ABSOLUTE,
135 LOADGP_RTP
d9870b7e
RS		 136};
137
e1260576
RS		 138struct mips16e_save_restore_info;
139
96a30b18 140extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_type *);
bcbc6b7f 141extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, int);
96a30b18 142extern bool mips_stack_address_p (rtx, enum machine_mode);
b4966b1b
RS		 143extern int mips_address_insns (rtx, enum machine_mode);
144extern int mips_const_insns (rtx);
145extern int mips_fetch_insns (rtx);
46490403 146extern int mips_idiv_insns (void);
50d32cf6
JW		 147extern int fp_register_operand (rtx, enum machine_mode);
148extern int lo_operand (rtx, enum machine_mode);
b4966b1b 149extern bool mips_legitimate_address_p (enum machine_mode, rtx, int);
ea462dd0 150extern rtx mips_split_symbol (rtx, rtx);
e245bd81 151extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
b4966b1b 152extern bool mips_legitimize_address (rtx *, enum machine_mode);
ea462dd0 153extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
b4966b1b 154extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
b4966b1b
RS		 155
156extern int m16_uimm3_b (rtx, enum machine_mode);
157extern int m16_simm4_1 (rtx, enum machine_mode);
158extern int m16_nsimm4_1 (rtx, enum machine_mode);
159extern int m16_simm5_1 (rtx, enum machine_mode);
160extern int m16_nsimm5_1 (rtx, enum machine_mode);
161extern int m16_uimm5_4 (rtx, enum machine_mode);
162extern int m16_nuimm5_4 (rtx, enum machine_mode);
163extern int m16_simm8_1 (rtx, enum machine_mode);
164extern int m16_nsimm8_1 (rtx, enum machine_mode);
165extern int m16_uimm8_1 (rtx, enum machine_mode);
166extern int m16_nuimm8_1 (rtx, enum machine_mode);
167extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
168extern int m16_uimm8_4 (rtx, enum machine_mode);
169extern int m16_nuimm8_4 (rtx, enum machine_mode);
170extern int m16_simm8_8 (rtx, enum machine_mode);
171extern int m16_nsimm8_8 (rtx, enum machine_mode);
6b7d57c7 172
b4966b1b
RS		 173extern rtx mips_subword (rtx, int);
174extern bool mips_split_64bit_move_p (rtx, rtx);
175extern void mips_split_64bit_move (rtx, rtx);
176extern const char *mips_output_move (rtx, rtx);
b73ce23b 177extern void mips_restore_gp (void);
6b7d57c7 178#ifdef RTX_CODE
a012718f 179extern bool mips_emit_scc (enum rtx_code, rtx);
b4966b1b 180extern void gen_conditional_branch (rtx *, enum rtx_code);
ec4fc7ed 181extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
6b7d57c7 182#endif
b4966b1b
RS		 183extern void gen_conditional_move (rtx *);
184extern void mips_gen_conditional_trap (rtx *);
185extern void mips_expand_call (rtx, rtx, rtx, rtx, int);
186extern void mips_emit_fcc_reload (rtx, rtx, rtx);
187extern void mips_set_return_address (rtx, rtx);
188extern bool mips_expand_block_move (rtx, rtx, rtx);
df770e04 189extern void mips_expand_synci_loop (rtx, rtx);
b4966b1b
RS		 190
191extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
192extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
193 tree, int);
194extern struct rtx_def *function_arg (const CUMULATIVE_ARGS *,
195 enum machine_mode, tree, int);
e64ca6c4 196extern int function_arg_boundary (enum machine_mode, tree);
648bb159
RS		 197extern bool mips_pad_arg_upward (enum machine_mode, tree);
198extern bool mips_pad_reg_upward (enum machine_mode, tree);
b4966b1b 199extern void mips_va_start (tree, rtx);
b4966b1b
RS		 200
201extern bool mips_expand_unaligned_load (rtx, rtx, unsigned int, int);
202extern bool mips_expand_unaligned_store (rtx, rtx, unsigned int, int);
9226543b 203extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
b4966b1b
RS		 204extern void override_options (void);
205extern void mips_conditional_register_usage (void);
206extern void mips_order_regs_for_local_alloc (void);
207extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
208
209extern void print_operand (FILE *, rtx, int);
210extern void print_operand_address (FILE *, rtx);
f8fdb503 211extern void mips_output_external (FILE *, tree, const char *);
b4966b1b 212extern void mips_output_filename (FILE *, const char *);
584e5527 213extern void mips_output_ascii (FILE *, const char *, size_t, const char *);
b4966b1b
RS		 214extern void mips_output_aligned_bss (FILE *, tree, const char *,
215 unsigned HOST_WIDE_INT, int);
35f5add9
RS		 216extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
217 unsigned HOST_WIDE_INT,
218 unsigned int);
48b2e0a7
RS		 219extern void mips_declare_common_object (FILE *, const char *,
220 const char *, unsigned HOST_WIDE_INT,
221 unsigned int, bool);
b4966b1b 222extern void mips_declare_object (FILE *, const char *, const char *,
99a3237a 223 const char *, ...) ATTRIBUTE_PRINTF_4;
b4966b1b
RS		 224extern void mips_declare_object_name (FILE *, const char *, tree);
225extern void mips_finish_declare_object (FILE *, tree, int, int);
226
96a30b18 227extern bool mips_small_data_pattern_p (rtx);
108b61d5 228extern rtx mips_rewrite_small_data (rtx);
b4966b1b 229extern HOST_WIDE_INT compute_frame_size (HOST_WIDE_INT);
e88fb323 230extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
b4966b1b 231extern rtx mips_return_addr (int, rtx);
d9870b7e 232extern enum mips_loadgp_style mips_current_loadgp_style (void);
b4966b1b
RS		 233extern void mips_expand_prologue (void);
234extern void mips_expand_epilogue (int);
235extern int mips_can_use_return_insn (void);
236extern struct rtx_def *mips_function_value (tree, tree, enum machine_mode);
b4966b1b
RS		 237
238extern bool mips_cannot_change_mode_class (enum machine_mode,
239 enum machine_mode, enum reg_class);
a6008bd8
RS		 240extern bool mips_dangerous_for_la25_p (rtx);
241extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);
b4966b1b
RS		 242extern enum reg_class mips_secondary_reload_class (enum reg_class,
243 enum machine_mode,
244 rtx, int);
245extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
b4966b1b
RS		 246extern int build_mips16_call_stub (rtx, rtx, rtx, int);
247extern int mips_register_move_cost (enum machine_mode, enum reg_class,
248 enum reg_class);
249
250extern int mips_adjust_insn_length (rtx, int);
251extern const char *mips_output_load_label (void);
a8c1d5f8
RS		 252extern const char *mips_output_conditional_branch (rtx, rtx *, const char *,
253 const char *);
254extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool);
b4966b1b
RS		 255extern const char *mips_output_division (const char *, rtx *);
256extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
39ba1719 257extern bool mips_linked_madd_p (rtx, rtx);
c81d6e2a 258extern int mips_store_data_bypass_p (rtx, rtx);
4767c570 259extern rtx mips_prefetch_cookie (rtx, rtx);
b4966b1b 260
3c7404d3 261extern void irix_asm_output_align (FILE *, unsigned);
b4966b1b
RS		 262extern const char *current_section_name (void);
263extern unsigned int current_section_flags (void);
05adfd82 264extern bool mips_use_ins_ext_p (rtx, rtx, rtx);
bd9f1972 265
e1260576
RS		 266extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
267extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
268 struct mips16e_save_restore_info *);
269
88657302 270#endif /* ! GCC_MIPS_PROTOS_H */
Mirror of https://gcc.gnu.org/git/gcc.git