1 /* Prototypes for exported functions defined in arm.c and pe.c
2 Copyright (C) 1999-2016 Free Software Foundation, Inc.
3 Contributed by Richard Earnshaw (rearnsha@arm.com)
4 Minor hacks by Nick Clifton (nickc@cygnus.com)
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 #ifndef GCC_ARM_PROTOS_H
23 #define GCC_ARM_PROTOS_H
25 extern enum unwind_info_type
arm_except_unwind_info (struct gcc_options
*);
26 extern int use_return_insn (int, rtx
);
27 extern bool use_simple_return_p (void);
28 extern enum reg_class
arm_regno_class (int);
29 extern void arm_load_pic_register (unsigned long);
30 extern int arm_volatile_func (void);
31 extern void arm_expand_prologue (void);
32 extern void arm_expand_epilogue (bool);
33 extern void arm_declare_function_name (FILE *, const char *, tree
);
34 extern void thumb2_expand_return (bool);
35 extern const char *arm_strip_name_encoding (const char *);
36 extern void arm_asm_output_labelref (FILE *, const char *);
37 extern void thumb2_asm_output_opcode (FILE *);
38 extern unsigned long arm_current_func_type (void);
39 extern HOST_WIDE_INT
arm_compute_initial_elimination_offset (unsigned int,
41 extern HOST_WIDE_INT
thumb_compute_initial_elimination_offset (unsigned int,
43 extern unsigned int arm_dbx_register_number (unsigned int);
44 extern void arm_output_fn_unwind (FILE *, bool);
46 extern rtx
arm_expand_builtin (tree exp
, rtx target
, rtx subtarget
47 ATTRIBUTE_UNUSED
, enum machine_mode mode
48 ATTRIBUTE_UNUSED
, int ignore ATTRIBUTE_UNUSED
);
49 extern tree
arm_builtin_decl (unsigned code
, bool initialize_p
51 extern void arm_init_builtins (void);
52 extern void arm_atomic_assign_expand_fenv (tree
*hold
, tree
*clear
, tree
*update
);
55 extern bool arm_vector_mode_supported_p (machine_mode
);
56 extern bool arm_small_register_classes_for_mode_p (machine_mode
);
57 extern int arm_hard_regno_mode_ok (unsigned int, machine_mode
);
58 extern bool arm_modes_tieable_p (machine_mode
, machine_mode
);
59 extern int const_ok_for_arm (HOST_WIDE_INT
);
60 extern int const_ok_for_op (HOST_WIDE_INT
, enum rtx_code
);
61 extern int const_ok_for_dimode_op (HOST_WIDE_INT
, enum rtx_code
);
62 extern int arm_split_constant (RTX_CODE
, machine_mode
, rtx
,
63 HOST_WIDE_INT
, rtx
, rtx
, int);
64 extern int legitimate_pic_operand_p (rtx
);
65 extern rtx
legitimize_pic_address (rtx
, machine_mode
, rtx
);
66 extern rtx
legitimize_tls_address (rtx
, rtx
);
67 extern bool arm_legitimate_address_p (machine_mode
, rtx
, bool);
68 extern int arm_legitimate_address_outer_p (machine_mode
, rtx
, RTX_CODE
, int);
69 extern int thumb_legitimate_offset_p (machine_mode
, HOST_WIDE_INT
);
70 extern int thumb1_legitimate_address_p (machine_mode
, rtx
, int);
71 extern bool ldm_stm_operation_p (rtx
, bool, machine_mode mode
,
73 extern int arm_const_double_rtx (rtx
);
74 extern int vfp3_const_double_rtx (rtx
);
75 extern int neon_immediate_valid_for_move (rtx
, machine_mode
, rtx
*, int *);
76 extern int neon_immediate_valid_for_logic (rtx
, machine_mode
, int, rtx
*,
78 extern int neon_immediate_valid_for_shift (rtx
, machine_mode
, rtx
*,
80 extern char *neon_output_logic_immediate (const char *, rtx
*,
81 machine_mode
, int, int);
82 extern char *neon_output_shift_immediate (const char *, char, rtx
*,
83 machine_mode
, int, bool);
84 extern void neon_pairwise_reduce (rtx
, rtx
, machine_mode
,
85 rtx (*) (rtx
, rtx
, rtx
));
86 extern rtx
neon_make_constant (rtx
);
87 extern tree
arm_builtin_vectorized_function (unsigned int, tree
, tree
);
88 extern void neon_expand_vector_init (rtx
, rtx
);
89 extern void neon_lane_bounds (rtx
, HOST_WIDE_INT
, HOST_WIDE_INT
, const_tree
);
90 extern void neon_const_bounds (rtx
, HOST_WIDE_INT
, HOST_WIDE_INT
);
91 extern HOST_WIDE_INT
neon_element_bits (machine_mode
);
92 extern void neon_emit_pair_result_insn (machine_mode
,
93 rtx (*) (rtx
, rtx
, rtx
, rtx
),
95 extern void neon_disambiguate_copy (rtx
*, rtx
*, rtx
*, unsigned int);
96 extern void neon_split_vcombine (rtx op
[3]);
97 extern enum reg_class
coproc_secondary_reload_class (machine_mode
, rtx
,
99 extern bool arm_tls_referenced_p (rtx
);
101 extern int arm_coproc_mem_operand (rtx
, bool);
102 extern int neon_vector_mem_operand (rtx
, int, bool);
103 extern int neon_struct_mem_operand (rtx
);
105 extern int tls_mentioned_p (rtx
);
106 extern int symbol_mentioned_p (rtx
);
107 extern int label_mentioned_p (rtx
);
108 extern RTX_CODE
minmax_code (rtx
);
109 extern bool arm_sat_operator_match (rtx
, rtx
, int *, bool *);
110 extern int adjacent_mem_locations (rtx
, rtx
);
111 extern bool gen_ldm_seq (rtx
*, int, bool);
112 extern bool gen_stm_seq (rtx
*, int);
113 extern bool gen_const_stm_seq (rtx
*, int);
114 extern rtx
arm_gen_load_multiple (int *, int, rtx
, int, rtx
, HOST_WIDE_INT
*);
115 extern rtx
arm_gen_store_multiple (int *, int, rtx
, int, rtx
, HOST_WIDE_INT
*);
116 extern bool offset_ok_for_ldrd_strd (HOST_WIDE_INT
);
117 extern bool operands_ok_ldrd_strd (rtx
, rtx
, rtx
, HOST_WIDE_INT
, bool, bool);
118 extern bool gen_operands_ldrd_strd (rtx
*, bool, bool, bool);
119 extern int arm_gen_movmemqi (rtx
*);
120 extern bool gen_movmem_ldrd_strd (rtx
*);
121 extern machine_mode
arm_select_cc_mode (RTX_CODE
, rtx
, rtx
);
122 extern machine_mode
arm_select_dominance_cc_mode (rtx
, rtx
,
124 extern rtx
arm_gen_compare_reg (RTX_CODE
, rtx
, rtx
, rtx
);
125 extern rtx
arm_gen_return_addr_mask (void);
126 extern void arm_reload_in_hi (rtx
*);
127 extern void arm_reload_out_hi (rtx
*);
128 extern int arm_max_const_double_inline_cost (void);
129 extern int arm_const_double_inline_cost (rtx
);
130 extern bool arm_const_double_by_parts (rtx
);
131 extern bool arm_const_double_by_immediates (rtx
);
132 extern void arm_emit_call_insn (rtx
, rtx
, bool);
133 extern const char *output_call (rtx
*);
134 void arm_emit_movpair (rtx
, rtx
);
135 extern const char *output_mov_long_double_arm_from_arm (rtx
*);
136 extern const char *output_move_double (rtx
*, bool, int *count
);
137 extern const char *output_move_quad (rtx
*);
138 extern int arm_count_output_move_double_insns (rtx
*);
139 extern const char *output_move_vfp (rtx
*operands
);
140 extern const char *output_move_neon (rtx
*operands
);
141 extern int arm_attr_length_move_neon (rtx_insn
*);
142 extern int arm_address_offset_is_imm (rtx_insn
*);
143 extern const char *output_add_immediate (rtx
*);
144 extern const char *arithmetic_instr (rtx
, int);
145 extern void output_ascii_pseudo_op (FILE *, const unsigned char *, int);
146 extern const char *output_return_instruction (rtx
, bool, bool, bool);
147 extern const char *output_probe_stack_range (rtx
, rtx
);
148 extern void arm_poke_function_name (FILE *, const char *);
149 extern void arm_final_prescan_insn (rtx_insn
*);
150 extern int arm_debugger_arg_offset (int, rtx
);
151 extern bool arm_is_long_call_p (tree
);
152 extern int arm_emit_vector_const (FILE *, rtx
);
153 extern void arm_emit_fp16_const (rtx c
);
154 extern const char * arm_output_load_gr (rtx
*);
155 extern const char *vfp_output_vstmd (rtx
*);
156 extern void arm_output_multireg_pop (rtx
*, bool, rtx
, bool, bool);
157 extern void arm_set_return_address (rtx
, rtx
);
158 extern int arm_eliminable_register (rtx
);
159 extern const char *arm_output_shift(rtx
*, int);
160 extern const char *arm_output_iwmmxt_shift_immediate (const char *, rtx
*, bool);
161 extern const char *arm_output_iwmmxt_tinsr (rtx
*);
162 extern unsigned int arm_sync_loop_insns (rtx
, rtx
*);
163 extern int arm_attr_length_push_multi(rtx
, rtx
);
164 extern void arm_expand_compare_and_swap (rtx op
[]);
165 extern void arm_split_compare_and_swap (rtx op
[]);
166 extern void arm_split_atomic_op (enum rtx_code
, rtx
, rtx
, rtx
, rtx
, rtx
, rtx
);
167 extern rtx
arm_load_tp (rtx
);
169 #if defined TREE_CODE
170 extern void arm_init_cumulative_args (CUMULATIVE_ARGS
*, tree
, rtx
, tree
);
171 extern bool arm_pad_arg_upward (machine_mode
, const_tree
);
172 extern bool arm_pad_reg_upward (machine_mode
, tree
, int);
174 extern int arm_apply_result_size (void);
176 #endif /* RTX_CODE */
178 /* Thumb functions. */
179 extern void arm_init_expanders (void);
180 extern const char *thumb1_unexpanded_epilogue (void);
181 extern void thumb1_expand_prologue (void);
182 extern void thumb1_expand_epilogue (void);
183 extern const char *thumb1_output_interwork (void);
184 extern int thumb_shiftable_const (unsigned HOST_WIDE_INT
);
186 extern enum arm_cond_code
maybe_get_arm_condition_code (rtx
);
187 extern void thumb1_final_prescan_insn (rtx_insn
*);
188 extern void thumb2_final_prescan_insn (rtx_insn
*);
189 extern const char *thumb_load_double_from_address (rtx
*);
190 extern const char *thumb_output_move_mem_multiple (int, rtx
*);
191 extern const char *thumb_call_via_reg (rtx
);
192 extern void thumb_expand_movmemqi (rtx
*);
193 extern rtx
arm_return_addr (int, rtx
);
194 extern void thumb_reload_out_hi (rtx
*);
195 extern void thumb_reload_in_hi (rtx
*);
196 extern void thumb_set_return_address (rtx
, rtx
);
197 extern const char *thumb1_output_casesi (rtx
*);
198 extern const char *thumb2_output_casesi (rtx
*);
201 /* Defined in pe.c. */
202 extern int arm_dllexport_name_p (const char *);
203 extern int arm_dllimport_name_p (const char *);
206 extern void arm_pe_unique_section (tree
, int);
207 extern void arm_pe_encode_section_info (tree
, rtx
, int);
208 extern int arm_dllexport_p (tree
);
209 extern int arm_dllimport_p (tree
);
210 extern void arm_mark_dllexport (tree
);
211 extern void arm_mark_dllimport (tree
);
212 extern bool arm_change_mode_p (tree
);
215 extern tree
arm_valid_target_attribute_tree (tree
, struct gcc_options
*,
216 struct gcc_options
*);
217 extern void arm_pr_long_calls (struct cpp_reader
*);
218 extern void arm_pr_no_long_calls (struct cpp_reader
*);
219 extern void arm_pr_long_calls_off (struct cpp_reader
*);
221 extern const char *arm_mangle_type (const_tree
);
222 extern const char *arm_mangle_builtin_type (const_tree
);
224 extern void arm_order_regs_for_local_alloc (void);
226 extern int arm_max_conditional_execute ();
228 /* Vectorizer cost model implementation. */
229 struct cpu_vec_costs
{
230 const int scalar_stmt_cost
; /* Cost of any scalar operation, excluding
232 const int scalar_load_cost
; /* Cost of scalar load. */
233 const int scalar_store_cost
; /* Cost of scalar store. */
234 const int vec_stmt_cost
; /* Cost of any vector operation, excluding
235 load, store, vector-to-scalar and
236 scalar-to-vector operation. */
237 const int vec_to_scalar_cost
; /* Cost of vect-to-scalar operation. */
238 const int scalar_to_vec_cost
; /* Cost of scalar-to-vector operation. */
239 const int vec_align_load_cost
; /* Cost of aligned vector load. */
240 const int vec_unalign_load_cost
; /* Cost of unaligned vector load. */
241 const int vec_unalign_store_cost
; /* Cost of unaligned vector load. */
242 const int vec_store_cost
; /* Cost of vector store. */
243 const int cond_taken_branch_cost
; /* Cost of taken branch for vectorizer
245 const int cond_not_taken_branch_cost
;/* Cost of not taken branch for
246 vectorizer cost model. */
250 /* This needs to be here because we need RTX_CODE and similar. */
252 struct cpu_cost_table
;
254 /* Dump function ARM_PRINT_TUNE_INFO should be updated whenever this
255 structure is modified. */
259 bool (*rtx_costs
) (rtx
, RTX_CODE
, RTX_CODE
, int *, bool);
260 const struct cpu_cost_table
*insn_extra_cost
;
261 bool (*sched_adjust_cost
) (rtx_insn
*, rtx
, rtx_insn
*, int *);
262 int (*branch_cost
) (bool, bool);
263 /* Vectorizer costs. */
264 const struct cpu_vec_costs
* vec_costs
;
266 /* Maximum number of instructions to conditionalise. */
267 int max_insns_skipped
;
268 /* Maximum number of instructions to inline calls to memset. */
269 int max_insns_inline_memset
;
270 /* Issue rate of the processor. */
271 unsigned int issue_rate
;
272 /* Explicit prefetch data. */
277 int l1_cache_line_size
;
279 enum {PREF_CONST_POOL_FALSE
, PREF_CONST_POOL_TRUE
}
280 prefer_constant_pool
: 1;
281 /* Prefer STRD/LDRD instructions over PUSH/POP/LDM/STM. */
282 enum {PREF_LDRD_FALSE
, PREF_LDRD_TRUE
} prefer_ldrd_strd
: 1;
283 /* The preference for non short cirtcuit operation when optimizing for
284 performance. The first element covers Thumb state and the second one
286 enum log_op_non_short_circuit
{LOG_OP_NON_SHORT_CIRCUIT_FALSE
,
287 LOG_OP_NON_SHORT_CIRCUIT_TRUE
};
288 log_op_non_short_circuit logical_op_non_short_circuit_thumb
: 1;
289 log_op_non_short_circuit logical_op_non_short_circuit_arm
: 1;
290 /* Prefer 32-bit encoding instead of flag-setting 16-bit encoding. */
291 enum {DISPARAGE_FLAGS_NEITHER
, DISPARAGE_FLAGS_PARTIAL
, DISPARAGE_FLAGS_ALL
}
292 disparage_flag_setting_t16_encodings
: 2;
293 enum {PREF_NEON_64_FALSE
, PREF_NEON_64_TRUE
} prefer_neon_for_64bits
: 1;
294 /* Prefer to inline string operations like memset by using Neon. */
295 enum {PREF_NEON_STRINGOPS_FALSE
, PREF_NEON_STRINGOPS_TRUE
}
296 string_ops_prefer_neon
: 1;
297 /* Bitfield encoding the fusible pairs of instructions. Use FUSE_OPS
298 in an initializer if multiple fusion operations are supported on a
303 FUSE_MOVW_MOVT
= 1 << 0
305 /* Depth of scheduling queue to check for L2 autoprefetcher. */
306 enum {SCHED_AUTOPREF_OFF
, SCHED_AUTOPREF_RANK
, SCHED_AUTOPREF_FULL
}
310 /* Smash multiple fusion operations into a type that can be used for an
312 #define FUSE_OPS(x) ((tune_params::fuse_ops) (x))
314 extern const struct tune_params
*current_tune
;
315 extern int vfp3_const_double_for_fract_bits (rtx
);
316 /* return power of two from operand, otherwise 0. */
317 extern int vfp3_const_double_for_bits (rtx
);
319 extern void arm_emit_coreregs_64bit_shift (enum rtx_code
, rtx
, rtx
, rtx
, rtx
,
321 extern bool arm_valid_symbolic_address_p (rtx
);
322 extern bool arm_validize_comparison (rtx
*, rtx
*, rtx
*);
323 #endif /* RTX_CODE */
325 extern bool arm_gen_setmem (rtx
*);
326 extern void arm_expand_vec_perm (rtx target
, rtx op0
, rtx op1
, rtx sel
);
327 extern bool arm_expand_vec_perm_const (rtx target
, rtx op0
, rtx op1
, rtx sel
);
329 extern bool arm_autoinc_modes_ok_p (machine_mode
, enum arm_auto_incmodes
);
331 extern void arm_emit_eabi_attribute (const char *, int, int);
333 extern void arm_reset_previous_fndecl (void);
334 extern void save_restore_target_globals (tree
);
336 /* Defined in gcc/common/config/arm-common.c. */
337 extern const char *arm_rewrite_selected_cpu (const char *name
);
339 /* Defined in gcc/common/config/arm-c.c. */
340 extern void arm_lang_object_attributes_init (void);
341 extern void arm_register_target_pragmas (void);
342 extern void arm_cpu_cpp_builtins (struct cpp_reader
*);
344 extern bool arm_is_constant_pool_ref (rtx
);
346 /* Flags used to identify the presence of processor capabilities. */
348 /* Bit values used to identify processor capabilities. */
349 #define FL_NONE (0) /* No flags. */
350 #define FL_ANY (0xffffffff) /* All flags. */
351 #define FL_CO_PROC (1 << 0) /* Has external co-processor bus */
352 #define FL_ARCH3M (1 << 1) /* Extended multiply */
353 #define FL_MODE26 (1 << 2) /* 26-bit mode support */
354 #define FL_MODE32 (1 << 3) /* 32-bit mode support */
355 #define FL_ARCH4 (1 << 4) /* Architecture rel 4 */
356 #define FL_ARCH5 (1 << 5) /* Architecture rel 5 */
357 #define FL_THUMB (1 << 6) /* Thumb aware */
358 #define FL_LDSCHED (1 << 7) /* Load scheduling necessary */
359 #define FL_STRONG (1 << 8) /* StrongARM */
360 #define FL_ARCH5E (1 << 9) /* DSP extensions to v5 */
361 #define FL_XSCALE (1 << 10) /* XScale */
362 /* spare (1 << 11) */
363 #define FL_ARCH6 (1 << 12) /* Architecture rel 6. Adds
364 media instructions. */
365 #define FL_VFPV2 (1 << 13) /* Vector Floating Point V2. */
366 #define FL_WBUF (1 << 14) /* Schedule for write buffer ops.
367 Note: ARM6 & 7 derivatives only. */
368 #define FL_ARCH6K (1 << 15) /* Architecture rel 6 K extensions. */
369 #define FL_THUMB2 (1 << 16) /* Thumb-2. */
370 #define FL_NOTM (1 << 17) /* Instructions not present in the 'M'
372 #define FL_THUMB_DIV (1 << 18) /* Hardware divide (Thumb mode). */
373 #define FL_VFPV3 (1 << 19) /* Vector Floating Point V3. */
374 #define FL_NEON (1 << 20) /* Neon instructions. */
375 #define FL_ARCH7EM (1 << 21) /* Instructions present in the ARMv7E-M
377 #define FL_ARCH7 (1 << 22) /* Architecture 7. */
378 #define FL_ARM_DIV (1 << 23) /* Hardware divide (ARM mode). */
379 #define FL_ARCH8 (1 << 24) /* Architecture 8. */
380 #define FL_CRC32 (1 << 25) /* ARMv8 CRC32 instructions. */
382 #define FL_SMALLMUL (1 << 26) /* Small multiply supported. */
383 #define FL_NO_VOLATILE_CE (1 << 27) /* No volatile memory in IT block. */
385 #define FL_IWMMXT (1 << 29) /* XScale v2 or "Intel Wireless MMX technology". */
386 #define FL_IWMMXT2 (1 << 30) /* "Intel Wireless MMX2 technology". */
387 #define FL_ARCH6KZ (1 << 31) /* ARMv6KZ architecture. */
389 #define FL2_ARCH8_1 (1 << 0) /* Architecture 8.1. */
391 /* Flags that only effect tuning, not available instructions. */
392 #define FL_TUNE (FL_WBUF | FL_VFPV2 | FL_STRONG | FL_LDSCHED \
395 #define FL_FOR_ARCH2 FL_NOTM
396 #define FL_FOR_ARCH3 (FL_FOR_ARCH2 | FL_MODE32)
397 #define FL_FOR_ARCH3M (FL_FOR_ARCH3 | FL_ARCH3M)
398 #define FL_FOR_ARCH4 (FL_FOR_ARCH3M | FL_ARCH4)
399 #define FL_FOR_ARCH4T (FL_FOR_ARCH4 | FL_THUMB)
400 #define FL_FOR_ARCH5 (FL_FOR_ARCH4 | FL_ARCH5)
401 #define FL_FOR_ARCH5T (FL_FOR_ARCH5 | FL_THUMB)
402 #define FL_FOR_ARCH5E (FL_FOR_ARCH5 | FL_ARCH5E)
403 #define FL_FOR_ARCH5TE (FL_FOR_ARCH5E | FL_THUMB)
404 #define FL_FOR_ARCH5TEJ FL_FOR_ARCH5TE
405 #define FL_FOR_ARCH6 (FL_FOR_ARCH5TE | FL_ARCH6)
406 #define FL_FOR_ARCH6J FL_FOR_ARCH6
407 #define FL_FOR_ARCH6K (FL_FOR_ARCH6 | FL_ARCH6K)
408 #define FL_FOR_ARCH6Z FL_FOR_ARCH6
409 #define FL_FOR_ARCH6KZ (FL_FOR_ARCH6K | FL_ARCH6KZ)
410 #define FL_FOR_ARCH6T2 (FL_FOR_ARCH6 | FL_THUMB2)
411 #define FL_FOR_ARCH6M (FL_FOR_ARCH6 & ~FL_NOTM)
412 #define FL_FOR_ARCH7 ((FL_FOR_ARCH6T2 & ~FL_NOTM) | FL_ARCH7)
413 #define FL_FOR_ARCH7A (FL_FOR_ARCH7 | FL_NOTM | FL_ARCH6K)
414 #define FL_FOR_ARCH7VE (FL_FOR_ARCH7A | FL_THUMB_DIV | FL_ARM_DIV)
415 #define FL_FOR_ARCH7R (FL_FOR_ARCH7A | FL_THUMB_DIV)
416 #define FL_FOR_ARCH7M (FL_FOR_ARCH7 | FL_THUMB_DIV)
417 #define FL_FOR_ARCH7EM (FL_FOR_ARCH7M | FL_ARCH7EM)
418 #define FL_FOR_ARCH8A (FL_FOR_ARCH7VE | FL_ARCH8)
419 #define FL2_FOR_ARCH8_1A FL2_ARCH8_1
421 /* There are too many feature bits to fit in a single word so the set of cpu and
422 fpu capabilities is a structure. A feature set is created and manipulated
423 with the ARM_FSET macros. */
427 unsigned long cpu
[2];
431 /* Initialize a feature set. */
433 #define ARM_FSET_MAKE(CPU1,CPU2) { { (CPU1), (CPU2) } }
435 #define ARM_FSET_MAKE_CPU1(CPU1) ARM_FSET_MAKE ((CPU1), (FL_NONE))
436 #define ARM_FSET_MAKE_CPU2(CPU2) ARM_FSET_MAKE ((FL_NONE), (CPU2))
440 #define ARM_FSET_CPU1(S) ((S).cpu[0])
441 #define ARM_FSET_CPU2(S) ((S).cpu[1])
443 /* Useful combinations. */
445 #define ARM_FSET_EMPTY ARM_FSET_MAKE (FL_NONE, FL_NONE)
446 #define ARM_FSET_ANY ARM_FSET_MAKE (FL_ANY, FL_ANY)
448 /* Tests for a specific CPU feature. */
450 #define ARM_FSET_HAS_CPU1(A, F) \
451 (((A).cpu[0] & ((unsigned long)(F))) == ((unsigned long)(F)))
452 #define ARM_FSET_HAS_CPU2(A, F) \
453 (((A).cpu[1] & ((unsigned long)(F))) == ((unsigned long)(F)))
454 #define ARM_FSET_HAS_CPU(A, F1, F2) \
455 (ARM_FSET_HAS_CPU1 ((A), (F1)) && ARM_FSET_HAS_CPU2 ((A), (F2)))
457 /* Add a feature to a feature set. */
459 #define ARM_FSET_ADD_CPU1(DST, F) \
461 (DST).cpu[0] |= (F); \
464 #define ARM_FSET_ADD_CPU2(DST, F) \
466 (DST).cpu[1] |= (F); \
469 /* Remove a feature from a feature set. */
471 #define ARM_FSET_DEL_CPU1(DST, F) \
473 (DST).cpu[0] &= ~(F); \
476 #define ARM_FSET_DEL_CPU2(DST, F) \
478 (DST).cpu[1] &= ~(F); \
481 /* Union of feature sets. */
483 #define ARM_FSET_UNION(DST,F1,F2) \
485 (DST).cpu[0] = (F1).cpu[0] | (F2).cpu[0]; \
486 (DST).cpu[1] = (F1).cpu[1] | (F2).cpu[1]; \
489 /* Intersection of feature sets. */
491 #define ARM_FSET_INTER(DST,F1,F2) \
493 (DST).cpu[0] = (F1).cpu[0] & (F2).cpu[0]; \
494 (DST).cpu[1] = (F1).cpu[1] & (F2).cpu[1]; \
497 /* Exclusive disjunction. */
499 #define ARM_FSET_XOR(DST,F1,F2) \
501 (DST).cpu[0] = (F1).cpu[0] ^ (F2).cpu[0]; \
502 (DST).cpu[1] = (F1).cpu[1] ^ (F2).cpu[1]; \
505 /* Difference of feature sets: F1 excluding the elements of F2. */
507 #define ARM_FSET_EXCLUDE(DST,F1,F2) \
509 (DST).cpu[0] = (F1).cpu[0] & ~(F2).cpu[0]; \
510 (DST).cpu[1] = (F1).cpu[1] & ~(F2).cpu[1]; \
513 /* Test for an empty feature set. */
515 #define ARM_FSET_IS_EMPTY(A) \
516 (!((A).cpu[0]) && !((A).cpu[1]))
518 /* Tests whether the cpu features of A are a subset of B. */
520 #define ARM_FSET_CPU_SUBSET(A,B) \
521 ((((A).cpu[0] & (B).cpu[0]) == (A).cpu[0]) \
522 && (((A).cpu[1] & (B).cpu[1]) == (A).cpu[1]))
524 /* The bits in this mask specify which
525 instructions we are allowed to generate. */
526 extern arm_feature_set insn_flags
;
528 /* The bits in this mask specify which instruction scheduling options should
530 extern arm_feature_set tune_flags
;
532 /* Nonzero if this chip supports the ARM Architecture 3M extensions. */
533 extern int arm_arch3m
;
535 /* Nonzero if this chip supports the ARM Architecture 4 extensions. */
536 extern int arm_arch4
;
538 /* Nonzero if this chip supports the ARM Architecture 4t extensions. */
539 extern int arm_arch4t
;
541 /* Nonzero if this chip supports the ARM Architecture 5 extensions. */
542 extern int arm_arch5
;
544 /* Nonzero if this chip supports the ARM Architecture 5E extensions. */
545 extern int arm_arch5e
;
547 /* Nonzero if this chip supports the ARM Architecture 6 extensions. */
548 extern int arm_arch6
;
550 /* Nonzero if this chip supports the ARM 6K extensions. */
551 extern int arm_arch6k
;
553 /* Nonzero if this chip supports the ARM 6KZ extensions. */
554 extern int arm_arch6kz
;
556 /* Nonzero if instructions present in ARMv6-M can be used. */
557 extern int arm_arch6m
;
559 /* Nonzero if this chip supports the ARM 7 extensions. */
560 extern int arm_arch7
;
562 /* Nonzero if instructions not present in the 'M' profile can be used. */
563 extern int arm_arch_notm
;
565 /* Nonzero if instructions present in ARMv7E-M can be used. */
566 extern int arm_arch7em
;
568 /* Nonzero if instructions present in ARMv8 can be used. */
569 extern int arm_arch8
;
571 /* Nonzero if this chip can benefit from load scheduling. */
572 extern int arm_ld_sched
;
574 /* Nonzero if this chip is a StrongARM. */
575 extern int arm_tune_strongarm
;
577 /* Nonzero if this chip supports Intel Wireless MMX technology. */
578 extern int arm_arch_iwmmxt
;
580 /* Nonzero if this chip supports Intel Wireless MMX2 technology. */
581 extern int arm_arch_iwmmxt2
;
583 /* Nonzero if this chip is an XScale. */
584 extern int arm_arch_xscale
;
586 /* Nonzero if tuning for XScale */
587 extern int arm_tune_xscale
;
589 /* Nonzero if we want to tune for stores that access the write-buffer.
590 This typically means an ARM6 or ARM7 with MMU or MPU. */
591 extern int arm_tune_wbuf
;
593 /* Nonzero if tuning for Cortex-A9. */
594 extern int arm_tune_cortex_a9
;
596 /* Nonzero if we should define __THUMB_INTERWORK__ in the
598 XXX This is a bit of a hack, it's intended to help work around
599 problems in GLD which doesn't understand that armv5t code is
600 interworking clean. */
601 extern int arm_cpp_interwork
;
603 /* Nonzero if chip supports Thumb 2. */
604 extern int arm_arch_thumb2
;
606 /* Nonzero if chip supports integer division instruction. */
607 extern int arm_arch_arm_hwdiv
;
608 extern int arm_arch_thumb_hwdiv
;
610 /* Nonzero if chip disallows volatile memory access in IT block. */
611 extern int arm_arch_no_volatile_ce
;
613 /* Nonzero if we should use Neon to handle 64-bits operations rather
614 than core registers. */
615 extern int prefer_neon_for_64bits
;
619 #endif /* ! GCC_ARM_PROTOS_H */