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9ebbca7d 1/* Definitions of target machine for GNU compiler, for IBM RS/6000.
83ffe9cd 2 Copyright (C) 2000-2023 Free Software Foundation, Inc.
9ebbca7d
GK		 3 Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
4
5de601cf 5 This file is part of GCC.
9ebbca7d 6
5de601cf
NC		 7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published
2f83c7d6 9 by the Free Software Foundation; either version 3, or (at your
5de601cf 10 option) any later version.
9ebbca7d 11
5de601cf
NC		 12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
9ebbca7d 16
5de601cf 17 You should have received a copy of the GNU General Public License
2f83c7d6
NC		 18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
9ebbca7d 20
a5c76ee6
ZW		 21#ifndef GCC_RS6000_PROTOS_H
22#define GCC_RS6000_PROTOS_H
23
e53b6e56 24/* Declare functions in rs6000.cc */
9ebbca7d
GK		 25
26#ifdef RTX_CODE
27
28#ifdef TREE_CODE
617718f7 29extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, int, int, int,
ef4bddc2 30 tree, machine_mode);
9ebbca7d
GK		 31#endif /* TREE_CODE */
32
e0e82856 33extern int easy_altivec_constant (rtx, machine_mode);
50c78b9a 34extern bool xxspltib_constant_p (rtx, machine_mode, int *, int *);
683be46f 35extern int vspltis_shifted (rtx);
847535b6 36extern HOST_WIDE_INT const_vector_elt_as_int (rtx, unsigned int);
ef4bddc2 37extern bool macho_lo_sum_memory_operand (rtx, machine_mode);
1060cd2a
JG		 38extern bool can_be_rotated_to_lowbits (unsigned HOST_WIDE_INT, int, int *);
39extern bool can_be_rotated_to_positive_16bits (HOST_WIDE_INT);
40extern bool can_be_rotated_to_negative_15bits (HOST_WIDE_INT);
ef4bddc2 41extern int num_insns_constant (rtx, machine_mode);
ef4bddc2
RS		 42extern int small_data_operand (rtx, machine_mode);
43extern bool mem_operand_gpr (rtx, machine_mode);
ad69178c 44extern bool mem_operand_ds_form (rtx, machine_mode);
f990f3a3 45extern bool toc_relative_expr_p (const_rtx, bool, const_rtx *, const_rtx *);
ef4bddc2
RS		 46extern void validate_condition_mode (enum rtx_code, machine_mode);
47extern bool legitimate_constant_pool_address_p (const_rtx, machine_mode,
77b0791e 48 bool);
48d72335 49extern bool legitimate_indirect_address_p (rtx, int);
6fb5fa3c 50extern bool legitimate_indexed_address_p (rtx, int);
ef4bddc2 51extern bool avoiding_indexed_address_p (machine_mode);
320314db 52extern rtx rs6000_force_indexed_or_indirect_mem (rtx x);
48d72335 53
9390387d
AM		 54extern rtx rs6000_got_register (rtx);
55extern rtx find_addr_reg (rtx);
66180ff3 56extern rtx gen_easy_altivec_constant (rtx);
a2369ed3 57extern const char *output_vec_const_move (rtx *);
19be72ab 58extern const char *rs6000_output_move_128bit (rtx *);
a16a872d
MM		 59extern bool rs6000_move_128bit_ok_p (rtx []);
60extern bool rs6000_split_128bit_ok_p (rtx []);
526303ec 61extern void rs6000_expand_float128_convert (rtx, rtx, bool);
7a4eca66 62extern void rs6000_expand_vector_init (rtx, rtx);
5e9f814d 63extern void rs6000_expand_vector_set (rtx, rtx, rtx);
98060bbe 64extern void rs6000_expand_vector_extract (rtx, rtx, rtx);
e0d32185 65extern void rs6000_split_vec_extract_var (rtx, rtx, rtx, rtx, rtx);
d0047a25 66extern rtx rs6000_adjust_vec_address (rtx, rtx, rtx, rtx, machine_mode);
f200869a 67extern void altivec_expand_vec_perm_le (rtx op[4]);
5aebfdad
RH		 68extern void rs6000_expand_extract_even (rtx, rtx, rtx);
69extern void rs6000_expand_interleave (rtx, rtx, rtx, bool);
70f0f8b2 70extern void rs6000_scale_v2df (rtx, rtx, int);
be1418c7 71extern void rs6000_generate_float2_code (bool, rtx, rtx, rtx);
19d22f7c 72extern void rs6000_generate_float2_double_code (rtx, rtx, rtx);
e5898daf 73extern void rs6000_generate_vsigned2_code (bool, rtx, rtx, rtx);
fba73eb1 74extern int expand_block_clear (rtx[]);
c8241327 75extern int expand_block_move (rtx[], bool);
9f38dde2 76extern bool expand_block_compare (rtx[]);
0edd264d 77extern bool expand_strn_compare (rtx[], int);
7fc5cca3 78extern bool rs6000_is_valid_mask (rtx, int *, int *, machine_mode);
19d81fda 79extern bool rs6000_is_valid_rotate_dot_mask (rtx mask, machine_mode mode);
7fc5cca3
SB		 80extern bool rs6000_is_valid_and_mask (rtx, machine_mode);
81extern bool rs6000_is_valid_shift_mask (rtx, rtx, machine_mode);
82extern bool rs6000_is_valid_insert_mask (rtx, rtx, machine_mode);
83extern const char *rs6000_insn_for_and_mask (machine_mode, rtx *, bool);
84extern const char *rs6000_insn_for_shift_mask (machine_mode, rtx *, bool);
85extern const char *rs6000_insn_for_insert_mask (machine_mode, rtx *, bool);
86extern bool rs6000_is_valid_2insn_and (rtx, machine_mode);
a34f4f64 87extern void rs6000_emit_2insn_and (machine_mode, rtx *, bool, int);
a2369ed3 88extern int registers_ok_for_quad_peep (rtx, rtx);
90f81f99 89extern int mems_ok_for_quad_peep (rtx, rtx);
3a1f863f 90extern bool gpr_or_gpr_p (rtx, rtx);
19be72ab 91extern bool direct_move_p (rtx, rtx);
3fd2b007 92extern bool quad_address_p (rtx, machine_mode, bool);
19be72ab 93extern bool quad_load_store_p (rtx, rtx);
3f99b061 94extern bool fusion_gpr_load_p (rtx, rtx, rtx, rtx);
f758f299 95extern void expand_fusion_gpr_load (rtx *);
0bcd172e 96extern void emit_fusion_addis (rtx, rtx);
3f99b061 97extern const char *emit_fusion_gpr_load (rtx, rtx);
8beb65e3
MM		 98extern enum reg_class (*rs6000_preferred_reload_class_ptr) (rtx,
99 enum reg_class);
100extern enum reg_class (*rs6000_secondary_reload_class_ptr) (enum reg_class,
ef4bddc2 101 machine_mode,
8beb65e3 102 rtx);
8beb65e3 103extern void rs6000_secondary_reload_inner (rtx, rtx, rtx, bool);
d32d6b75 104extern void rs6000_secondary_reload_gpr (rtx, rtx, rtx, bool);
e2e95f45
RE		 105
106
a2369ed3 107extern int ccr_bit (rtx, int);
85b776df 108extern void rs6000_output_function_entry (FILE *, const char *);
a2369ed3
DJ		 109extern void print_operand (FILE *, rtx, int);
110extern void print_operand_address (FILE *, rtx);
ece3bca2
AM		 111extern const char *rs6000_call_template (rtx *, unsigned int);
112extern const char *rs6000_sibcall_template (rtx *, unsigned int);
ce83eeda
AM		 113extern const char *rs6000_indirect_call_template (rtx *, unsigned int);
114extern const char *rs6000_indirect_sibcall_template (rtx *, unsigned int);
3f79c0ad 115extern const char *rs6000_pltseq_template (rtx *, int);
ef4bddc2 116extern enum rtx_code rs6000_reverse_condition (machine_mode,
3a1f863f 117 enum rtx_code);
a935964d 118extern rtx rs6000_emit_eqne (machine_mode, rtx, rtx, rtx);
eb548534 119extern rtx rs6000_emit_fp_cror (rtx_code, machine_mode, rtx);
ef4bddc2
RS		 120extern void rs6000_emit_sCOND (machine_mode, rtx[]);
121extern void rs6000_emit_cbranch (machine_mode, rtx[]);
e64e631b 122extern char * output_cbranch (rtx, const char *, int, rtx_insn *);
af2c8a96 123extern const char * output_probe_stack_range (rtx, rtx, rtx);
8845cb37 124extern void rs6000_emit_dot_insn (rtx dst, rtx src, int dot, rtx ccreg);
bfe51f42 125extern bool rs6000_emit_set_const (rtx, rtx);
aa53f657
MM		 126extern bool rs6000_emit_cmove (rtx, rtx, rtx, rtx);
127extern bool rs6000_emit_int_cmove (rtx, rtx, rtx, rtx);
21213b4c 128extern int rs6000_emit_vector_cond_expr (rtx, rtx, rtx, rtx, rtx, rtx);
a2369ed3 129extern void rs6000_emit_minmax (rtx, enum rtx_code, rtx, rtx);
2747a046 130extern void rs6000_expand_atomic_compare_and_swap (rtx op[]);
fc504349
CL		 131extern rtx swap_endian_selector_for_mode (machine_mode mode);
132
2747a046
RH		 133extern void rs6000_expand_atomic_exchange (rtx op[]);
134extern void rs6000_expand_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx);
92902797 135extern void rs6000_emit_swdiv (rtx, rtx, rtx, bool);
4f0055bd 136extern void rs6000_emit_swsqrt (rtx, rtx, bool);
ef4bddc2 137extern void output_toc (FILE *, rtx, int, machine_mode);
a2369ed3 138extern void rs6000_fatal_bad_address (rtx);
070b27da 139extern rtx create_TOC_reference (rtx, rtx);
a9baceb1 140extern void rs6000_split_multireg_move (rtx, rtx);
02d3ba0e 141extern void rs6000_emit_le_vsx_permute (rtx, rtx, machine_mode);
ef4bddc2 142extern void rs6000_emit_le_vsx_move (rtx, rtx, machine_mode);
fba4b861 143extern bool valid_sf_si_move (rtx, rtx, machine_mode);
ef4bddc2 144extern void rs6000_emit_move (rtx, rtx, machine_mode);
ef4bddc2 145extern bool rs6000_legitimate_offset_address_p (machine_mode, rtx,
d32d6b75 146 bool, bool);
944258eb 147extern rtx rs6000_find_base_term (rtx);
a2369ed3
DJ		 148extern rtx rs6000_return_addr (int, rtx);
149extern void rs6000_output_symbol_ref (FILE*, rtx);
d1d0c603 150extern HOST_WIDE_INT rs6000_initial_elimination_offset (int, int);
565ef4ba
RS		 151extern void rs6000_emit_popcount (rtx, rtx);
152extern void rs6000_emit_parity (rtx, rtx);
a2369ed3 153
ef4bddc2 154extern rtx rs6000_machopic_legitimize_pic_address (rtx, machine_mode,
fa5b0972 155 rtx);
ef4bddc2 156extern rtx rs6000_allocate_stack_temp (machine_mode, bool, bool);
e6de5335 157extern align_flags rs6000_loop_align (rtx);
44c3a8bb 158extern void rs6000_split_logical (rtx [], enum rtx_code, bool, bool, bool);
8c0f8755
BS		 159extern bool rs6000_function_pcrel_p (struct function *);
160extern bool rs6000_pcrel_p (void);
91117603 161extern bool rs6000_fndecl_pcrel_p (const_tree);
3493b0c3 162extern void rs6000_output_addr_vec_elt (FILE *, int);
26ca7d1b
MM		 163
164/* Different PowerPC instruction formats that are used by GCC. There are
165 various other instruction formats used by the PowerPC hardware, but these
166 formats are not currently used by GCC. */
167
168enum insn_form {
169 INSN_FORM_BAD, /* Bad instruction format. */
170 INSN_FORM_BASE_REG, /* Base register only. */
171 INSN_FORM_D, /* Reg + 16-bit numeric offset. */
172 INSN_FORM_DS, /* Reg + offset, bottom 2 bits must be 0. */
173 INSN_FORM_DQ, /* Reg + offset, bottom 4 bits must be 0. */
174 INSN_FORM_X, /* Base register + index register. */
175 INSN_FORM_UPDATE, /* Address updates base register. */
176 INSN_FORM_LO_SUM, /* Reg + offset using symbol. */
177 INSN_FORM_PREFIXED_NUMERIC, /* Reg + 34 bit numeric offset. */
178 INSN_FORM_PCREL_LOCAL, /* PC-relative local symbol. */
179 INSN_FORM_PCREL_EXTERNAL /* PC-relative external symbol. */
180};
181
182/* Instruction format for the non-prefixed version of a load or store. This is
183 used to determine if a 16-bit offset is valid to be used with a non-prefixed
184 (traditional) instruction or if the bottom bits of the offset cannot be used
185 with a DS or DQ instruction format, and GCC has to use a prefixed
186 instruction for the load or store. */
187
188enum non_prefixed_form {
189 NON_PREFIXED_DEFAULT, /* Use the default. */
190 NON_PREFIXED_D, /* All 16-bits are valid. */
191 NON_PREFIXED_DS, /* Bottom 2 bits must be 0. */
192 NON_PREFIXED_DQ, /* Bottom 4 bits must be 0. */
193 NON_PREFIXED_X /* No offset memory form exists. */
194};
195
196extern enum insn_form address_to_insn_form (rtx, machine_mode,
197 enum non_prefixed_form);
7a279bed
AS		 198extern bool address_is_non_pfx_d_or_x (rtx addr, machine_mode mode,
199 enum non_prefixed_form non_prefix_format);
b8d85f56
AS		 200extern bool pcrel_opt_valid_mem_p (rtx, machine_mode, rtx);
201enum non_prefixed_form reg_to_non_prefixed (rtx reg, machine_mode mode);
26ca7d1b
MM		 202extern bool prefixed_load_p (rtx_insn *);
203extern bool prefixed_store_p (rtx_insn *);
204extern bool prefixed_paddi_p (rtx_insn *);
205extern void rs6000_asm_output_opcode (FILE *);
b8d85f56 206extern void output_pcrel_opt_reloc (rtx);
26ca7d1b 207extern void rs6000_final_prescan_insn (rtx_insn *, rtx [], int);
ca06b86c 208extern int rs6000_adjust_insn_length (rtx_insn *, int);
26ca7d1b
MM		 209
210/* Return true if the address can be used for a prefixed load, store, or add
211 immediate instructions that cannot be used with a non-prefixed instruction.
212 For example, using a numeric offset that is not valid for the non-prefixed
213 instruction or a PC-relative reference to a local symbol would return true,
214 but an address with an offset of 64 would not return true.
215
216 References to external PC-relative symbols aren't allowed, because GCC has
217 to load the address into a register and then issue a separate load or
218 store. */
219
220static inline bool
221address_is_prefixed (rtx addr,
222 machine_mode mode,
223 enum non_prefixed_form non_prefixed)
224{
225 enum insn_form iform = address_to_insn_form (addr, mode, non_prefixed);
226 return (iform == INSN_FORM_PREFIXED_NUMERIC
227 || iform == INSN_FORM_PCREL_LOCAL);
228}
c6756b3b
MM		 229
230/* Functions and data structures relating to 128-bit constants that are
231 converted to byte, half-word, word, and double-word values. All fields are
232 kept in big endian order. We also convert scalar values to 128-bits if they
233 are going to be loaded into vector registers. */
234#define VECTOR_128BIT_BITS 128
235#define VECTOR_128BIT_BYTES (128 / 8)
236#define VECTOR_128BIT_HALF_WORDS (128 / 16)
237#define VECTOR_128BIT_WORDS (128 / 32)
238#define VECTOR_128BIT_DOUBLE_WORDS (128 / 64)
239
240typedef struct {
241 /* Constant as various sized items. */
242 unsigned HOST_WIDE_INT double_words[VECTOR_128BIT_DOUBLE_WORDS];
243 unsigned int words[VECTOR_128BIT_WORDS];
244 unsigned short half_words[VECTOR_128BIT_HALF_WORDS];
245 unsigned char bytes[VECTOR_128BIT_BYTES];
246
247 unsigned original_size; /* Constant size before splat. */
248 bool fp_constant_p; /* Is the constant floating point? */
249 bool all_double_words_same; /* Are the double words all equal? */
250 bool all_words_same; /* Are the words all equal? */
251 bool all_half_words_same; /* Are the half words all equal? */
252 bool all_bytes_same; /* Are the bytes all equal? */
253} vec_const_128bit_type;
254
255extern bool vec_const_128bit_to_bytes (rtx, machine_mode,
256 vec_const_128bit_type *);
8ccd8b12 257extern unsigned constant_generates_lxvkq (vec_const_128bit_type *);
d730aa8a 258extern unsigned constant_generates_xxspltiw (vec_const_128bit_type *);
8d443ac0 259extern unsigned constant_generates_xxspltidp (vec_const_128bit_type *);
9ebbca7d
GK		 260#endif /* RTX_CODE */
261
262#ifdef TREE_CODE
69eff9da 263extern unsigned int rs6000_data_alignment (tree, unsigned int, enum data_align);
42a21b4c 264extern unsigned int rs6000_special_adjust_field_align (tree, unsigned int);
fa5b0972
AM		 265extern unsigned int rs6000_special_round_type_align (tree, unsigned int,
266 unsigned int);
58182de3
GK		 267extern unsigned int darwin_rs6000_special_round_type_align (tree, unsigned int,
268 unsigned int);
4b29c5e5 269extern tree altivec_resolve_overloaded_builtin (location_t, tree, void *);
ef4bddc2 270extern rtx rs6000_libcall_value (machine_mode);
9390387d 271extern rtx rs6000_va_arg (tree, tree);
a2369ed3 272extern int function_ok_for_sibcall (tree);
ddbb449f 273extern int rs6000_reg_parm_stack_space (tree, bool);
8d91472f 274extern void rs6000_asm_weaken_decl (FILE *, tree, const char *, const char *);
b36e833f 275extern void rs6000_xcoff_declare_function_name (FILE *, const char *, tree);
9af46873 276extern void rs6000_xcoff_declare_object_name (FILE *, const char *, tree);
8d91472f
DE		 277extern void rs6000_xcoff_asm_output_aligned_decl_common (FILE *, tree,
278 const char *,
279 unsigned HOST_WIDE_INT,
92f59e47 280 unsigned int);
a2369ed3 281extern void rs6000_elf_declare_function_name (FILE *, const char *, tree);
3101faab 282extern bool rs6000_elf_in_small_data_p (const_tree);
ee890fe2 283
9ebbca7d
GK		 284#endif /* TREE_CODE */
285
a2369ed3 286extern int direct_return (void);
a2369ed3
DJ		 287extern int first_reg_to_save (void);
288extern int first_fp_reg_to_save (void);
a2369ed3
DJ		 289extern void output_ascii (FILE *, const char *, int);
290extern void rs6000_gen_section_name (char **, const char *, const char *);
291extern void output_function_profiler (FILE *, int);
292extern void output_profile_hook (int);
293extern int rs6000_trampoline_size (void);
4862826d 294extern alias_set_type get_TOC_alias_set (void);
a2369ed3
DJ		 295extern void rs6000_emit_prologue (void);
296extern void rs6000_emit_load_toc_table (int);
ca60bd93 297extern unsigned int rs6000_debugger_regno (unsigned int, unsigned int);
a3d59ce9 298extern void rs6000_emit_epilogue (enum epilogue_type);
0f0fd745
AM		 299extern void rs6000_expand_split_stack_prologue (void);
300extern void rs6000_split_stack_space_check (rtx, rtx);
d1d0c603 301extern void rs6000_emit_eh_reg_restore (rtx, rtx);
f90f960c
UW		 302extern void rs6000_call_aix (rtx, rtx, rtx, rtx);
303extern void rs6000_sibcall_aix (rtx, rtx, rtx, rtx);
ece3bca2 304extern void rs6000_call_sysv (rtx, rtx, rtx, rtx);
3f79c0ad 305extern void rs6000_sibcall_sysv (rtx, rtx, rtx, rtx);
aa3a2eca
IS		 306extern void rs6000_call_darwin (rtx, rtx, rtx, rtx);
307extern void rs6000_sibcall_darwin (rtx, rtx, rtx, rtx);
7e49a4b3 308extern void rs6000_aix_asm_output_dwarf_table_ref (char *);
be26142a 309extern void get_ppc476_thunk_name (char name[32]);
6ba86ba7 310extern int rs6000_store_data_bypass_p (rtx_insn *, rtx_insn *);
b85aed95 311extern HOST_WIDE_INT rs6000_builtin_mask_calculate (void);
e707a2dd
AD		 312extern void rs6000_asm_output_dwarf_pcrel (FILE *file, int size,
313 const char *label);
314extern void rs6000_asm_output_dwarf_datarel (FILE *file, int size,
315 const char *label);
75913096 316extern long rs6000_const_f32_to_i32 (rtx operand);
7e49a4b3 317
e53b6e56 318/* Declare functions in rs6000-c.cc */
4c4eb375 319
a2369ed3
DJ		 320extern void rs6000_pragma_longcall (struct cpp_reader *);
321extern void rs6000_cpu_cpp_builtins (struct cpp_reader *);
fd438373
MM		 322#ifdef TREE_CODE
323extern bool rs6000_pragma_target_parse (tree, tree);
324#endif
20a7e14a 325extern void rs6000_activate_target_options (tree new_tree);
75841b04
WS		 326extern void rs6000_target_modify_macros (bool, HOST_WIDE_INT);
327extern void (*rs6000_target_modify_macros_ptr) (bool, HOST_WIDE_INT);
a5c76ee6 328
ee06c6a5
DE		 329#ifdef NO_DOLLAR_IN_LABEL
330const char * rs6000_xcoff_strip_dollar (const char *);
331#endif
332
cacf1ca8
MM		 333extern unsigned char rs6000_class_max_nregs[][LIM_REG_CLASSES];
334extern unsigned char rs6000_hard_regno_nregs[][FIRST_PSEUDO_REGISTER];
9193fb05
JM		 335
336extern bool rs6000_linux_float_exceptions_rounding_supported_p (void);
5715e980
BS		 337
338/* Pass management. */
339namespace gcc { class context; }
340class rtl_opt_pass;
341
342extern rtl_opt_pass *make_pass_analyze_swaps (gcc::context *);
b8d85f56 343extern rtl_opt_pass *make_pass_pcrel_opt (gcc::context *);
a3a821c9
KN		 344extern bool rs6000_sum_of_two_registers_p (const_rtx expr);
345extern bool rs6000_quadword_masked_address_p (const_rtx exp);
346extern rtx rs6000_gen_lvx (enum machine_mode, rtx, rtx);
347extern rtx rs6000_gen_stvx (enum machine_mode, rtx, rtx);
5715e980 348
7f3b1997 349extern void rs6000_emit_xxspltidp_v2df (rtx, long value);
282462b3
KL		 350extern gimple *currently_expanding_gimple_stmt;
351extern bool rs6000_opaque_type_invalid_use_p (gimple *);
a5c76ee6 352#endif /* rs6000-protos.h */
Mirror of https://gcc.gnu.org/git/gcc.git