1 /* Definitions of target machine for GCC for IA-32.
2 Copyright (C) 1988, 1992, 1994, 1995, 1996, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
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 /* Functions in i386.c */
23 extern void override_options (bool);
24 extern void optimization_options (int, int);
25 extern void ix86_conditional_register_usage (void);
27 extern int ix86_can_use_return_insn_p (void);
28 extern void ix86_setup_frame_addresses (void);
30 extern void ix86_file_end (void);
31 extern int ix86_can_eliminate (int, int);
32 extern HOST_WIDE_INT
ix86_initial_elimination_offset (int, int);
33 extern void ix86_expand_prologue (void);
34 extern void ix86_expand_epilogue (int);
36 extern void ix86_output_addr_vec_elt (FILE *, int);
37 extern void ix86_output_addr_diff_elt (FILE *, int, int);
40 extern int standard_80387_constant_p (rtx
);
41 extern const char *standard_80387_constant_opcode (rtx
);
42 extern rtx
standard_80387_constant_rtx (int);
43 extern int standard_sse_constant_p (rtx
);
44 extern const char *standard_sse_constant_opcode (rtx
, rtx
);
45 extern int symbolic_reference_mentioned_p (rtx
);
46 extern bool extended_reg_mentioned_p (rtx
);
47 extern bool x86_extended_QIreg_mentioned_p (rtx
);
48 extern bool x86_extended_reg_mentioned_p (rtx
);
49 extern enum machine_mode
ix86_cc_mode (enum rtx_code
, rtx
, rtx
);
51 extern int ix86_expand_movmem (rtx
, rtx
, rtx
, rtx
, rtx
, rtx
);
52 extern int ix86_expand_setmem (rtx
, rtx
, rtx
, rtx
, rtx
, rtx
);
53 extern int ix86_expand_strlen (rtx
, rtx
, rtx
, rtx
);
55 extern bool legitimate_constant_p (rtx
);
56 extern bool constant_address_p (rtx
);
57 extern bool legitimate_pic_operand_p (rtx
);
58 extern int legitimate_pic_address_disp_p (rtx
);
60 extern void print_reg (rtx
, int, FILE*);
61 extern void print_operand (FILE*, rtx
, int);
62 extern void print_operand_address (FILE*, rtx
);
63 extern bool output_addr_const_extra (FILE*, rtx
);
65 extern void split_di (rtx
[], int, rtx
[], rtx
[]);
66 extern void split_ti (rtx
[], int, rtx
[], rtx
[]);
68 extern const char *output_set_got (rtx
, rtx
);
69 extern const char *output_387_binary_op (rtx
, rtx
*);
70 extern const char *output_387_reg_move (rtx
, rtx
*);
71 extern const char *output_fix_trunc (rtx
, rtx
*, int);
72 extern const char *output_fp_compare (rtx
, rtx
*, int, int);
74 extern void ix86_expand_clear (rtx
);
75 extern void ix86_expand_move (enum machine_mode
, rtx
[]);
76 extern void ix86_expand_vector_move (enum machine_mode
, rtx
[]);
77 extern void ix86_expand_vector_move_misalign (enum machine_mode
, rtx
[]);
78 extern void ix86_expand_push (enum machine_mode
, rtx
);
79 extern rtx
ix86_fixup_binary_operands (enum rtx_code
,
80 enum machine_mode
, rtx
[]);
81 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code
,
82 enum machine_mode
, rtx
[]);
83 extern void ix86_expand_binary_operator (enum rtx_code
,
84 enum machine_mode
, rtx
[]);
85 extern int ix86_binary_operator_ok (enum rtx_code
, enum machine_mode
, rtx
[]);
86 extern bool ix86_lea_for_add_ok (enum rtx_code
, rtx
, rtx
[]);
87 extern bool ix86_dep_by_shift_count (const_rtx set_insn
, const_rtx use_insn
);
88 extern bool ix86_agi_dependent (rtx set_insn
, rtx use_insn
);
89 extern void ix86_expand_unary_operator (enum rtx_code
, enum machine_mode
,
91 extern rtx
ix86_build_const_vector (enum machine_mode
, bool, rtx
);
92 extern void ix86_split_convert_uns_si_sse (rtx
[]);
93 extern void ix86_expand_convert_uns_didf_sse (rtx
, rtx
);
94 extern void ix86_expand_convert_uns_sixf_sse (rtx
, rtx
);
95 extern void ix86_expand_convert_uns_sidf_sse (rtx
, rtx
);
96 extern void ix86_expand_convert_uns_sisf_sse (rtx
, rtx
);
97 extern void ix86_expand_convert_sign_didf_sse (rtx
, rtx
);
98 extern enum ix86_fpcmp_strategy
ix86_fp_comparison_strategy (enum rtx_code
);
99 extern void ix86_expand_fp_absneg_operator (enum rtx_code
, enum machine_mode
,
101 extern void ix86_expand_copysign (rtx
[]);
102 extern void ix86_split_copysign_const (rtx
[]);
103 extern void ix86_split_copysign_var (rtx
[]);
104 extern int ix86_unary_operator_ok (enum rtx_code
, enum machine_mode
, rtx
[]);
105 extern int ix86_match_ccmode (rtx
, enum machine_mode
);
106 extern rtx
ix86_expand_compare (enum rtx_code
);
107 extern int ix86_use_fcomi_compare (enum rtx_code
);
108 extern void ix86_expand_branch (enum rtx_code
, rtx
);
109 extern void ix86_expand_setcc (enum rtx_code
, rtx
);
110 extern int ix86_expand_int_movcc (rtx
[]);
111 extern int ix86_expand_fp_movcc (rtx
[]);
112 extern bool ix86_expand_fp_vcond (rtx
[]);
113 extern bool ix86_expand_int_vcond (rtx
[]);
114 extern void ix86_expand_sse_unpack (rtx
[], bool, bool);
115 extern void ix86_expand_sse4_unpack (rtx
[], bool, bool);
116 extern void ix86_expand_sse5_unpack (rtx
[], bool, bool);
117 extern void ix86_expand_sse5_pack (rtx
[]);
118 extern int ix86_expand_int_addcc (rtx
[]);
119 extern void ix86_expand_call (rtx
, rtx
, rtx
, rtx
, rtx
, int);
120 extern void x86_initialize_trampoline (rtx
, rtx
, rtx
);
121 extern rtx
ix86_zero_extend_to_Pmode (rtx
);
122 extern void ix86_split_long_move (rtx
[]);
123 extern void ix86_split_ashl (rtx
*, rtx
, enum machine_mode
);
124 extern void ix86_split_ashr (rtx
*, rtx
, enum machine_mode
);
125 extern void ix86_split_lshr (rtx
*, rtx
, enum machine_mode
);
126 extern rtx
ix86_find_base_term (rtx
);
127 extern int ix86_check_movabs (rtx
, int);
129 extern rtx
assign_386_stack_local (enum machine_mode
, enum ix86_stack_slot
);
130 extern int ix86_attr_length_immediate_default (rtx
, int);
131 extern int ix86_attr_length_address_default (rtx
);
132 extern int ix86_attr_length_vex_default (rtx
, int, int);
134 extern enum machine_mode
ix86_fp_compare_mode (enum rtx_code
);
136 extern rtx
ix86_libcall_value (enum machine_mode
);
137 extern bool ix86_function_value_regno_p (int);
138 extern bool ix86_function_arg_regno_p (int);
139 extern int ix86_function_arg_boundary (enum machine_mode
, tree
);
140 extern bool ix86_sol10_return_in_memory (const_tree
,const_tree
);
141 extern rtx
ix86_force_to_memory (enum machine_mode
, rtx
);
142 extern void ix86_free_from_memory (enum machine_mode
);
143 extern enum calling_abi
ix86_cfun_abi (void);
144 extern enum calling_abi
ix86_function_type_abi (const_tree
);
145 extern void ix86_call_abi_override (const_tree
);
146 extern tree
ix86_fn_abi_va_list (tree
);
147 extern tree
ix86_canonical_va_list_type (tree
);
148 extern int ix86_enum_va_list (int, const char **, tree
*);
149 extern int ix86_reg_parm_stack_space (const_tree
);
151 extern void ix86_split_fp_branch (enum rtx_code code
, rtx
, rtx
,
153 extern bool ix86_hard_regno_mode_ok (int, enum machine_mode
);
154 extern bool ix86_modes_tieable_p (enum machine_mode
, enum machine_mode
);
155 extern int ix86_register_move_cost (enum machine_mode
, enum reg_class
,
157 extern int ix86_secondary_memory_needed (enum reg_class
, enum reg_class
,
158 enum machine_mode
, int);
159 extern bool ix86_cannot_change_mode_class (enum machine_mode
,
160 enum machine_mode
, enum reg_class
);
161 extern enum reg_class
ix86_preferred_reload_class (rtx
, enum reg_class
);
162 extern enum reg_class
ix86_preferred_output_reload_class (rtx
, enum reg_class
);
163 extern int ix86_memory_move_cost (enum machine_mode
, enum reg_class
, int);
164 extern int ix86_mode_needed (int, rtx
);
165 extern void emit_i387_cw_initialization (int);
166 extern void x86_order_regs_for_local_alloc (void);
167 extern void x86_function_profiler (FILE *, int);
168 extern void x86_emit_floatuns (rtx
[2]);
169 extern void ix86_emit_fp_unordered_jump (rtx
);
171 extern void ix86_emit_i387_log1p (rtx
, rtx
);
172 extern void ix86_emit_swdivsf (rtx
, rtx
, rtx
, enum machine_mode
);
173 extern void ix86_emit_swsqrtsf (rtx
, rtx
, enum machine_mode
, bool);
175 extern enum rtx_code
ix86_reverse_condition (enum rtx_code
, enum machine_mode
);
177 extern void ix86_expand_lround (rtx
, rtx
);
178 extern void ix86_expand_lfloorceil (rtx
, rtx
, bool);
179 extern void ix86_expand_rint (rtx
, rtx
);
180 extern void ix86_expand_floorceil (rtx
, rtx
, bool);
181 extern void ix86_expand_floorceildf_32 (rtx
, rtx
, bool);
182 extern void ix86_expand_round (rtx
, rtx
);
183 extern void ix86_expand_rounddf_32 (rtx
, rtx
);
184 extern void ix86_expand_trunc (rtx
, rtx
);
185 extern void ix86_expand_truncdf_32 (rtx
, rtx
);
188 extern void init_cumulative_args (CUMULATIVE_ARGS
*, tree
, rtx
, tree
);
189 extern rtx
function_arg (CUMULATIVE_ARGS
*, enum machine_mode
, tree
, int);
190 extern void function_arg_advance (CUMULATIVE_ARGS
*, enum machine_mode
,
197 extern int ix86_return_pops_args (tree
, tree
, int);
199 extern int ix86_data_alignment (tree
, int);
200 extern unsigned int ix86_local_alignment (tree
, enum machine_mode
,
202 extern int ix86_constant_alignment (tree
, int);
203 extern tree
ix86_handle_shared_attribute (tree
*, tree
, tree
, int, bool *);
204 extern tree
ix86_handle_selectany_attribute (tree
*, tree
, tree
, int, bool *);
205 extern int x86_field_alignment (tree
, int);
206 extern tree
ix86_valid_target_attribute_tree (tree
);
209 extern rtx
ix86_tls_get_addr (void);
210 extern rtx
ix86_tls_module_base (void);
212 extern void ix86_expand_vector_init (bool, rtx
, rtx
);
213 extern void ix86_expand_vector_set (bool, rtx
, rtx
, int);
214 extern void ix86_expand_vector_extract (bool, rtx
, rtx
, int);
215 extern void ix86_expand_reduc_v4sf (rtx (*)(rtx
, rtx
, rtx
), rtx
, rtx
);
217 extern bool ix86_sse5_valid_op_p (rtx
[], rtx
, int, bool, int, bool);
218 extern void ix86_expand_sse5_multiple_memory (rtx
[], int, enum machine_mode
);
221 extern void ix86_target_macros (void);
222 extern void ix86_register_pragmas (void);
225 extern void i386_pe_unique_section (tree
, int);
226 extern void i386_pe_declare_function_type (FILE *, const char *, int);
227 extern void i386_pe_record_external_function (tree
, const char *);
228 extern void i386_pe_maybe_record_exported_symbol (tree
, const char *, int);
229 extern void i386_pe_encode_section_info (tree
, rtx
, int);
230 extern bool i386_pe_binds_local_p (const_tree
);
231 extern const char *i386_pe_strip_name_encoding_full (const char *);
232 extern bool i386_pe_valid_dllimport_attribute_p (const_tree
);
233 extern unsigned int i386_pe_section_type_flags (tree
, const char *, int);
234 extern void i386_pe_asm_named_section (const char *, unsigned int, tree
);
235 extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree
,
239 extern void i386_pe_file_end (void);
240 extern tree
i386_pe_mangle_decl_assembler_name (tree
, tree
);
242 /* In winnt-cxx.c and winnt-stubs.c */
243 extern void i386_pe_adjust_class_at_definition (tree
);
244 extern bool i386_pe_type_dllimport_p (tree
);
245 extern bool i386_pe_type_dllexport_p (tree
);
247 extern rtx
maybe_get_pool_constant (rtx
);
249 extern char internal_label_prefix
[16];
250 extern int internal_label_prefix_len
;
252 enum ix86_address_seg
{ SEG_DEFAULT
, SEG_FS
, SEG_GS
};
255 rtx base
, index
, disp
;
257 enum ix86_address_seg seg
;
260 extern int ix86_decompose_address (rtx
, struct ix86_address
*);
261 extern int memory_address_length (rtx addr
);
262 extern void x86_output_aligned_bss (FILE *, tree
, const char *,
263 unsigned HOST_WIDE_INT
, int);
264 extern void x86_elf_aligned_common (FILE *, const char *,
265 unsigned HOST_WIDE_INT
, int);
268 extern void ix86_fp_comparison_codes (enum rtx_code code
, enum rtx_code
*,
269 enum rtx_code
*, enum rtx_code
*);
270 extern enum rtx_code
ix86_fp_compare_code_to_integer (enum rtx_code
);
271 extern rtx
construct_plt_address (rtx
);
273 extern int asm_preferred_eh_data_format (int, int);
276 extern enum attr_cpu ix86_schedule
;