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188fc5b5 | 1 | /* Definitions of target machine for GCC for IA-32. |
0e4970d7 | 2 | Copyright (C) 1988, 1992, 1994, 1995, 1996, 1996, 1997, 1998, 1999, |
5234b8f5 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
5bf5a10b | 4 | Free Software Foundation, Inc. |
6baf1cc8 | 5 | |
188fc5b5 | 6 | This file is part of GCC. |
6baf1cc8 | 7 | |
188fc5b5 | 8 | GCC is free software; you can redistribute it and/or modify |
6baf1cc8 | 9 | it under the terms of the GNU General Public License as published by |
2f83c7d6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
6baf1cc8 BS |
11 | any later version. |
12 | ||
188fc5b5 | 13 | GCC is distributed in the hope that it will be useful, |
6baf1cc8 BS |
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
2f83c7d6 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
6baf1cc8 BS |
21 | |
22 | /* Functions in i386.c */ | |
b96a374d AJ |
23 | extern void override_options (void); |
24 | extern void optimization_options (int, int); | |
6baf1cc8 | 25 | |
b96a374d AJ |
26 | extern int ix86_can_use_return_insn_p (void); |
27 | extern int ix86_frame_pointer_required (void); | |
28 | extern void ix86_setup_frame_addresses (void); | |
6baf1cc8 | 29 | |
b96a374d AJ |
30 | extern void ix86_file_end (void); |
31 | extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int); | |
32 | extern void ix86_expand_prologue (void); | |
33 | extern void ix86_expand_epilogue (int); | |
6baf1cc8 | 34 | |
b96a374d AJ |
35 | extern void ix86_output_addr_vec_elt (FILE *, int); |
36 | extern void ix86_output_addr_diff_elt (FILE *, int, int); | |
f88c65f7 | 37 | |
6baf1cc8 | 38 | #ifdef RTX_CODE |
b96a374d AJ |
39 | extern int ix86_aligned_p (rtx); |
40 | ||
41 | extern int standard_80387_constant_p (rtx); | |
42 | extern const char *standard_80387_constant_opcode (rtx); | |
43 | extern rtx standard_80387_constant_rtx (int); | |
44 | extern int standard_sse_constant_p (rtx); | |
5656a184 | 45 | extern const char *standard_sse_constant_opcode (rtx, rtx); |
b96a374d AJ |
46 | extern int symbolic_reference_mentioned_p (rtx); |
47 | extern bool extended_reg_mentioned_p (rtx); | |
48 | extern bool x86_extended_QIreg_mentioned_p (rtx); | |
49 | extern bool x86_extended_reg_mentioned_p (rtx); | |
b96a374d AJ |
50 | extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx); |
51 | ||
8c996513 JH |
52 | extern int ix86_expand_movmem (rtx, rtx, rtx, rtx, rtx, rtx); |
53 | extern int ix86_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx); | |
b96a374d AJ |
54 | extern int ix86_expand_strlen (rtx, rtx, rtx, rtx); |
55 | ||
56 | extern bool legitimate_constant_p (rtx); | |
57 | extern bool constant_address_p (rtx); | |
58 | extern bool legitimate_pic_operand_p (rtx); | |
59 | extern int legitimate_pic_address_disp_p (rtx); | |
60 | extern int legitimate_address_p (enum machine_mode, rtx, int); | |
b96a374d AJ |
61 | extern rtx legitimize_address (rtx, rtx, enum machine_mode); |
62 | ||
63 | extern void print_reg (rtx, int, FILE*); | |
64 | extern void print_operand (FILE*, rtx, int); | |
65 | extern void print_operand_address (FILE*, rtx); | |
66 | extern bool output_addr_const_extra (FILE*, rtx); | |
67 | ||
68 | extern void split_di (rtx[], int, rtx[], rtx[]); | |
69 | extern void split_ti (rtx[], int, rtx[], rtx[]); | |
70 | ||
7d072037 | 71 | extern const char *output_set_got (rtx, rtx); |
b96a374d | 72 | extern const char *output_387_binary_op (rtx, rtx*); |
5ea9cb6e | 73 | extern const char *output_387_reg_move (rtx, rtx*); |
9199f050 | 74 | extern const char *output_fix_trunc (rtx, rtx*, int); |
b96a374d AJ |
75 | extern const char *output_fp_compare (rtx, rtx*, int, int); |
76 | ||
b96a374d AJ |
77 | extern void ix86_expand_clear (rtx); |
78 | extern void ix86_expand_move (enum machine_mode, rtx[]); | |
79 | extern void ix86_expand_vector_move (enum machine_mode, rtx[]); | |
c38573a8 | 80 | extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]); |
6b79c03c | 81 | extern void ix86_expand_push (enum machine_mode, rtx); |
ef719a44 RH |
82 | extern rtx ix86_fixup_binary_operands (enum rtx_code, |
83 | enum machine_mode, rtx[]); | |
84 | extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, | |
85 | enum machine_mode, rtx[]); | |
b96a374d AJ |
86 | extern void ix86_expand_binary_operator (enum rtx_code, |
87 | enum machine_mode, rtx[]); | |
88 | extern int ix86_binary_operator_ok (enum rtx_code, enum machine_mode, rtx[]); | |
89 | extern void ix86_expand_unary_operator (enum rtx_code, enum machine_mode, | |
90 | rtx[]); | |
174c12c7 RH |
91 | extern rtx ix86_build_const_vector (enum machine_mode, bool, rtx); |
92 | extern void ix86_split_convert_uns_si_sse (rtx[]); | |
ebff937c SH |
93 | extern void ix86_expand_convert_uns_didf_sse (rtx, rtx); |
94 | extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx); | |
95 | extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx); | |
96 | extern void ix86_expand_convert_sign_didf_sse (rtx, rtx); | |
046625fa | 97 | extern rtx ix86_build_signbit_mask (enum machine_mode, bool, bool); |
7cacf53e RH |
98 | extern void ix86_expand_fp_absneg_operator (enum rtx_code, enum machine_mode, |
99 | rtx[]); | |
b99d6d2b RH |
100 | extern void ix86_expand_copysign (rtx []); |
101 | extern void ix86_split_copysign_const (rtx []); | |
102 | extern void ix86_split_copysign_var (rtx []); | |
b96a374d AJ |
103 | extern int ix86_unary_operator_ok (enum rtx_code, enum machine_mode, rtx[]); |
104 | extern int ix86_match_ccmode (rtx, enum machine_mode); | |
105 | extern rtx ix86_expand_compare (enum rtx_code, rtx *, rtx *); | |
106 | extern int ix86_use_fcomi_compare (enum rtx_code); | |
107 | extern void ix86_expand_branch (enum rtx_code, rtx); | |
108 | extern int ix86_expand_setcc (enum rtx_code, rtx); | |
109 | extern int ix86_expand_int_movcc (rtx[]); | |
110 | extern int ix86_expand_fp_movcc (rtx[]); | |
ae46a07a | 111 | extern bool ix86_expand_fp_vcond (rtx[]); |
9fb93f89 | 112 | extern bool ix86_expand_int_vcond (rtx[]); |
89d67cca | 113 | extern void ix86_expand_sse_unpack (rtx[], bool, bool); |
e5ac0b9b | 114 | extern void ix86_expand_sse4_unpack (rtx[], bool, bool); |
b96a374d AJ |
115 | extern int ix86_expand_int_addcc (rtx[]); |
116 | extern void ix86_expand_call (rtx, rtx, rtx, rtx, rtx, int); | |
117 | extern void x86_initialize_trampoline (rtx, rtx, rtx); | |
118 | extern rtx ix86_zero_extend_to_Pmode (rtx); | |
119 | extern void ix86_split_long_move (rtx[]); | |
28356f52 JB |
120 | extern void ix86_split_ashl (rtx *, rtx, enum machine_mode); |
121 | extern void ix86_split_ashr (rtx *, rtx, enum machine_mode); | |
122 | extern void ix86_split_lshr (rtx *, rtx, enum machine_mode); | |
b96a374d | 123 | extern rtx ix86_find_base_term (rtx); |
7e6dc358 | 124 | extern int ix86_check_movabs (rtx, int); |
b96a374d | 125 | |
ff680eb1 | 126 | extern rtx assign_386_stack_local (enum machine_mode, enum ix86_stack_slot); |
b96a374d AJ |
127 | extern int ix86_attr_length_immediate_default (rtx, int); |
128 | extern int ix86_attr_length_address_default (rtx); | |
129 | ||
130 | extern enum machine_mode ix86_fp_compare_mode (enum rtx_code); | |
131 | ||
b96a374d AJ |
132 | extern rtx ix86_libcall_value (enum machine_mode); |
133 | extern bool ix86_function_value_regno_p (int); | |
134 | extern bool ix86_function_arg_regno_p (int); | |
135 | extern int ix86_function_arg_boundary (enum machine_mode, tree); | |
136 | extern int ix86_return_in_memory (tree); | |
29173496 | 137 | extern int ix86_sol10_return_in_memory (tree); |
b96a374d AJ |
138 | extern void ix86_va_start (tree, rtx); |
139 | extern rtx ix86_va_arg (tree, tree); | |
b96a374d AJ |
140 | |
141 | extern rtx ix86_force_to_memory (enum machine_mode, rtx); | |
142 | extern void ix86_free_from_memory (enum machine_mode); | |
7c82106f UB |
143 | extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx, |
144 | rtx, rtx, rtx, rtx); | |
c1c5b5e3 RH |
145 | extern bool ix86_hard_regno_mode_ok (int, enum machine_mode); |
146 | extern bool ix86_modes_tieable_p (enum machine_mode, enum machine_mode); | |
b96a374d AJ |
147 | extern int ix86_register_move_cost (enum machine_mode, enum reg_class, |
148 | enum reg_class); | |
149 | extern int ix86_secondary_memory_needed (enum reg_class, enum reg_class, | |
150 | enum machine_mode, int); | |
1272914c RH |
151 | extern bool ix86_cannot_change_mode_class (enum machine_mode, |
152 | enum machine_mode, enum reg_class); | |
b96a374d | 153 | extern enum reg_class ix86_preferred_reload_class (rtx, enum reg_class); |
b5c82fa1 | 154 | extern enum reg_class ix86_preferred_output_reload_class (rtx, enum reg_class); |
b96a374d | 155 | extern int ix86_memory_move_cost (enum machine_mode, enum reg_class, int); |
ff680eb1 UB |
156 | extern int ix86_mode_needed (int, rtx); |
157 | extern void emit_i387_cw_initialization (int); | |
b96a374d AJ |
158 | extern bool ix86_fp_jump_nontrivial_p (enum rtx_code); |
159 | extern void x86_order_regs_for_local_alloc (void); | |
160 | extern void x86_function_profiler (FILE *, int); | |
161 | extern void x86_emit_floatuns (rtx [2]); | |
5ae27cfa | 162 | extern void ix86_emit_fp_unordered_jump (rtx); |
397be6cf | 163 | |
c2fcfa4f | 164 | extern void ix86_emit_i387_log1p (rtx, rtx); |
6b889d89 UB |
165 | extern void ix86_emit_swdivsf (rtx, rtx, rtx, enum machine_mode); |
166 | extern void ix86_emit_swsqrtsf (rtx, rtx, enum machine_mode, bool); | |
c2fcfa4f | 167 | |
3c5cb3e4 | 168 | extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode); |
4211a8fb | 169 | |
4d81bf84 | 170 | extern void ix86_expand_lround (rtx, rtx); |
c3a4177f | 171 | extern void ix86_expand_lfloorceil (rtx, rtx, bool); |
c7d32ff6 | 172 | extern void ix86_expand_rint (rtx, rtx); |
d096ecdd RG |
173 | extern void ix86_expand_floorceil (rtx, rtx, bool); |
174 | extern void ix86_expand_floorceildf_32 (rtx, rtx, bool); | |
097f2964 RG |
175 | extern void ix86_expand_round (rtx, rtx); |
176 | extern void ix86_expand_rounddf_32 (rtx, rtx); | |
044928d6 RG |
177 | extern void ix86_expand_trunc (rtx, rtx); |
178 | extern void ix86_expand_truncdf_32 (rtx, rtx); | |
4d81bf84 | 179 | |
6baf1cc8 | 180 | #ifdef TREE_CODE |
b96a374d AJ |
181 | extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree); |
182 | extern rtx function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree, int); | |
b96a374d AJ |
183 | extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode, |
184 | tree, int); | |
6baf1cc8 BS |
185 | #endif |
186 | ||
187 | #endif | |
188 | ||
189 | #ifdef TREE_CODE | |
b96a374d | 190 | extern int ix86_return_pops_args (tree, tree, int); |
b96a374d AJ |
191 | |
192 | extern int ix86_data_alignment (tree, int); | |
193 | extern int ix86_local_alignment (tree, int); | |
194 | extern int ix86_constant_alignment (tree, int); | |
b96a374d | 195 | extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *); |
5656a184 | 196 | extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *); |
b96a374d | 197 | extern int x86_field_alignment (tree, int); |
6baf1cc8 | 198 | #endif |
772c5265 | 199 | |
b96a374d | 200 | extern rtx ix86_tls_get_addr (void); |
5bf5a10b | 201 | extern rtx ix86_tls_module_base (void); |
f996902d | 202 | |
eb701deb RH |
203 | extern void ix86_expand_vector_init (bool, rtx, rtx); |
204 | extern void ix86_expand_vector_set (bool, rtx, rtx, int); | |
205 | extern void ix86_expand_vector_extract (bool, rtx, rtx, int); | |
2ab1754e | 206 | extern void ix86_expand_reduc_v4sf (rtx (*)(rtx, rtx, rtx), rtx, rtx); |
eb701deb | 207 | |
772c5265 | 208 | /* In winnt.c */ |
b96a374d AJ |
209 | extern void i386_pe_unique_section (tree, int); |
210 | extern void i386_pe_declare_function_type (FILE *, const char *, int); | |
3ce9c824 | 211 | extern void i386_pe_record_external_function (tree, const char *); |
da489f73 | 212 | extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int); |
b96a374d | 213 | extern void i386_pe_encode_section_info (tree, rtx, int); |
da489f73 | 214 | extern bool i386_pe_binds_local_p (tree); |
b96a374d | 215 | extern const char *i386_pe_strip_name_encoding_full (const char *); |
43d9ad1d | 216 | extern bool i386_pe_valid_dllimport_attribute_p (tree); |
da489f73 RH |
217 | extern unsigned int i386_pe_section_type_flags (tree, const char *, int); |
218 | extern void i386_pe_asm_named_section (const char *, unsigned int, tree); | |
219 | extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree, | |
220 | const char *, | |
221 | HOST_WIDE_INT, | |
222 | HOST_WIDE_INT); | |
223 | extern void i386_pe_file_end (void); | |
5234b8f5 | 224 | extern tree i386_pe_mangle_decl_assembler_name (tree, tree); |
43d9ad1d DS |
225 | |
226 | /* In winnt-cxx.c and winnt-stubs.c */ | |
227 | extern void i386_pe_adjust_class_at_definition (tree); | |
228 | extern bool i386_pe_type_dllimport_p (tree); | |
229 | extern bool i386_pe_type_dllexport_p (tree); | |
230 | ||
8fe75e43 RH |
231 | extern rtx maybe_get_pool_constant (rtx); |
232 | ||
233 | extern char internal_label_prefix[16]; | |
234 | extern int internal_label_prefix_len; | |
235 | ||
236 | enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS }; | |
237 | struct ix86_address | |
238 | { | |
239 | rtx base, index, disp; | |
240 | HOST_WIDE_INT scale; | |
241 | enum ix86_address_seg seg; | |
242 | }; | |
243 | ||
244 | extern int ix86_decompose_address (rtx, struct ix86_address *); | |
245 | extern int memory_address_length (rtx addr); | |
7dcbf659 JH |
246 | extern void x86_output_aligned_bss (FILE *, tree, const char *, |
247 | unsigned HOST_WIDE_INT, int); | |
248 | extern void x86_elf_aligned_common (FILE *, const char *, | |
249 | unsigned HOST_WIDE_INT, int); | |
8fe75e43 RH |
250 | |
251 | #ifdef RTX_CODE | |
252 | extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, | |
253 | enum rtx_code *, enum rtx_code *); | |
254 | extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); | |
dc4d7240 | 255 | extern rtx construct_plt_address (rtx); |
8fe75e43 | 256 | #endif |
72ce3d4a | 257 | extern int asm_preferred_eh_data_format (int, int); |