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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,
a2130901 3 1999, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
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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).
8
7ec022b2 9This file is part of GCC.
bd9f1972 10
7ec022b2 11GCC is free software; you can redistribute it and/or modify
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12it under the terms of the GNU General Public License as published by
13the Free Software Foundation; either version 2, or (at your option)
14any later version.
15
7ec022b2 16GCC is distributed in the hope that it will be useful,
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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
7ec022b2 22along with GCC; see the file COPYING. If not, write to
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23the Free Software Foundation, 51 Franklin Street, Fifth Floor,
24Boston, MA 02110-1301, USA. */
bd9f1972 25
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26#ifndef GCC_MIPS_PROTOS_H
27#define GCC_MIPS_PROTOS_H
bd9f1972 28
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29/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
30
31 SYMBOL_GENERAL
32 Used when none of the below apply.
33
34 SYMBOL_SMALL_DATA
35 The symbol refers to something in a small data section.
36
37 SYMBOL_CONSTANT_POOL
38 The symbol refers to something in the mips16 constant pool.
39
40 SYMBOL_GOT_LOCAL
41 The symbol refers to local data that will be found using
42 the global offset table.
43
44 SYMBOL_GOT_GLOBAL
45 Likewise non-local data.
46
47 SYMBOL_GOTOFF_PAGE
48 An UNSPEC wrapper around a SYMBOL_GOT_LOCAL. It represents the
49 offset from _gp of a GOT page entry.
50
51 SYMBOL_GOTOFF_GLOBAL
52 An UNSPEC wrapper around a SYMBOL_GOT_GLOBAL. It represents the
53 the offset from _gp of the symbol's GOT entry.
54
55 SYMBOL_GOTOFF_CALL
56 Like SYMBOL_GOTOFF_GLOBAL, but used when calling a global function.
57 The GOT entry is allowed to point to a stub rather than to the
58 function itself.
59
60 SYMBOL_GOTOFF_LOADGP
61 An UNSPEC wrapper around a function's address. It represents the
62 offset of _gp from the start of the function.
63
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64 SYMBOL_TLS
65 A thread-local symbol.
66
67 SYMBOL_TLSGD
68 SYMBOL_TLSLDM
69 SYMBOL_DTPREL
70 SYMBOL_GOTTPREL
71 SYMBOL_TPREL
72 UNSPEC wrappers around SYMBOL_TLS, corresponding to the
73 thread-local storage relocation operators.
74
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75 SYMBOL_64_HIGH
76 For a 64-bit symbolic address X, this is the value of
77 (%highest(X) << 16) + %higher(X).
78
79 SYMBOL_64_MID
80 For a 64-bit symbolic address X, this is the value of
81 (%higher(X) << 16) + %hi(X).
82
83 SYMBOL_64_LOW
84 For a 64-bit symbolic address X, this is the value of
85 (%hi(X) << 16) + %lo(X). */
86enum mips_symbol_type {
87 SYMBOL_GENERAL,
88 SYMBOL_SMALL_DATA,
89 SYMBOL_CONSTANT_POOL,
90 SYMBOL_GOT_LOCAL,
91 SYMBOL_GOT_GLOBAL,
92 SYMBOL_GOTOFF_PAGE,
93 SYMBOL_GOTOFF_GLOBAL,
94 SYMBOL_GOTOFF_CALL,
95 SYMBOL_GOTOFF_LOADGP,
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96 SYMBOL_TLS,
97 SYMBOL_TLSGD,
98 SYMBOL_TLSLDM,
99 SYMBOL_DTPREL,
100 SYMBOL_GOTTPREL,
101 SYMBOL_TPREL,
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102 SYMBOL_64_HIGH,
103 SYMBOL_64_MID,
104 SYMBOL_64_LOW
105};
106#define NUM_SYMBOL_TYPES (SYMBOL_64_LOW + 1)
107
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108extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_type *);
109extern bool mips_atomic_symbolic_constant_p (rtx);
bcbc6b7f 110extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, int);
96a30b18 111extern bool mips_stack_address_p (rtx, enum machine_mode);
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112extern int mips_address_insns (rtx, enum machine_mode);
113extern int mips_const_insns (rtx);
114extern int mips_fetch_insns (rtx);
46490403 115extern int mips_idiv_insns (void);
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116extern int fp_register_operand (rtx, enum machine_mode);
117extern int lo_operand (rtx, enum machine_mode);
b4966b1b 118extern bool mips_legitimate_address_p (enum machine_mode, rtx, int);
e245bd81 119extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
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120extern bool mips_legitimize_address (rtx *, enum machine_mode);
121extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
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122
123extern int m16_uimm3_b (rtx, enum machine_mode);
124extern int m16_simm4_1 (rtx, enum machine_mode);
125extern int m16_nsimm4_1 (rtx, enum machine_mode);
126extern int m16_simm5_1 (rtx, enum machine_mode);
127extern int m16_nsimm5_1 (rtx, enum machine_mode);
128extern int m16_uimm5_4 (rtx, enum machine_mode);
129extern int m16_nuimm5_4 (rtx, enum machine_mode);
130extern int m16_simm8_1 (rtx, enum machine_mode);
131extern int m16_nsimm8_1 (rtx, enum machine_mode);
132extern int m16_uimm8_1 (rtx, enum machine_mode);
133extern int m16_nuimm8_1 (rtx, enum machine_mode);
134extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
135extern int m16_uimm8_4 (rtx, enum machine_mode);
136extern int m16_nuimm8_4 (rtx, enum machine_mode);
137extern int m16_simm8_8 (rtx, enum machine_mode);
138extern int m16_nsimm8_8 (rtx, enum machine_mode);
6b7d57c7 139
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140extern rtx mips_subword (rtx, int);
141extern bool mips_split_64bit_move_p (rtx, rtx);
142extern void mips_split_64bit_move (rtx, rtx);
143extern const char *mips_output_move (rtx, rtx);
b73ce23b 144extern void mips_restore_gp (void);
6b7d57c7 145#ifdef RTX_CODE
a012718f 146extern bool mips_emit_scc (enum rtx_code, rtx);
b4966b1b 147extern void gen_conditional_branch (rtx *, enum rtx_code);
6b7d57c7 148#endif
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149extern void gen_conditional_move (rtx *);
150extern void mips_gen_conditional_trap (rtx *);
151extern void mips_expand_call (rtx, rtx, rtx, rtx, int);
152extern void mips_emit_fcc_reload (rtx, rtx, rtx);
153extern void mips_set_return_address (rtx, rtx);
154extern bool mips_expand_block_move (rtx, rtx, rtx);
155
156extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
157extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
158 tree, int);
159extern struct rtx_def *function_arg (const CUMULATIVE_ARGS *,
160 enum machine_mode, tree, int);
e64ca6c4 161extern int function_arg_boundary (enum machine_mode, tree);
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162extern bool mips_pad_arg_upward (enum machine_mode, tree);
163extern bool mips_pad_reg_upward (enum machine_mode, tree);
b4966b1b 164extern void mips_va_start (tree, rtx);
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165
166extern bool mips_expand_unaligned_load (rtx, rtx, unsigned int, int);
167extern bool mips_expand_unaligned_store (rtx, rtx, unsigned int, int);
168extern void override_options (void);
169extern void mips_conditional_register_usage (void);
170extern void mips_order_regs_for_local_alloc (void);
171extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
172
173extern void print_operand (FILE *, rtx, int);
174extern void print_operand_address (FILE *, rtx);
175extern int mips_output_external (FILE *, tree, const char *);
b4966b1b 176extern void mips_output_filename (FILE *, const char *);
584e5527 177extern void mips_output_ascii (FILE *, const char *, size_t, const char *);
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178extern void mips_output_aligned_bss (FILE *, tree, const char *,
179 unsigned HOST_WIDE_INT, int);
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180extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
181 unsigned HOST_WIDE_INT,
182 unsigned int);
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183extern void mips_declare_common_object (FILE *, const char *,
184 const char *, unsigned HOST_WIDE_INT,
185 unsigned int, bool);
b4966b1b 186extern void mips_declare_object (FILE *, const char *, const char *,
99a3237a 187 const char *, ...) ATTRIBUTE_PRINTF_4;
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188extern void mips_declare_object_name (FILE *, const char *, tree);
189extern void mips_finish_declare_object (FILE *, tree, int, int);
190
96a30b18 191extern bool mips_small_data_pattern_p (rtx);
108b61d5 192extern rtx mips_rewrite_small_data (rtx);
b4966b1b 193extern HOST_WIDE_INT compute_frame_size (HOST_WIDE_INT);
e88fb323 194extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
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195extern rtx mips_return_addr (int, rtx);
196extern void mips_expand_prologue (void);
197extern void mips_expand_epilogue (int);
198extern int mips_can_use_return_insn (void);
199extern struct rtx_def *mips_function_value (tree, tree, enum machine_mode);
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200
201extern bool mips_cannot_change_mode_class (enum machine_mode,
202 enum machine_mode, enum reg_class);
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203extern bool mips_dangerous_for_la25_p (rtx);
204extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);
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205extern enum reg_class mips_secondary_reload_class (enum reg_class,
206 enum machine_mode,
207 rtx, int);
208extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
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209extern int build_mips16_call_stub (rtx, rtx, rtx, int);
210extern int mips_register_move_cost (enum machine_mode, enum reg_class,
211 enum reg_class);
212
213extern int mips_adjust_insn_length (rtx, int);
214extern const char *mips_output_load_label (void);
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215extern const char *mips_output_conditional_branch (rtx, rtx *, const char *,
216 const char *);
217extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool);
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218extern const char *mips_output_division (const char *, rtx *);
219extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
39ba1719 220extern bool mips_linked_madd_p (rtx, rtx);
4767c570 221extern rtx mips_prefetch_cookie (rtx, rtx);
b4966b1b 222
3c7404d3 223extern void irix_asm_output_align (FILE *, unsigned);
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224extern const char *current_section_name (void);
225extern unsigned int current_section_flags (void);
05adfd82 226extern bool mips_use_ins_ext_p (rtx, rtx, rtx);
bd9f1972 227
88657302 228#endif /* ! GCC_MIPS_PROTOS_H */