1 /* Definitions for code generation pass of GNU compiler.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 #include "insn-codes.h"
26 /* Optabs are tables saying how to generate insn bodies
27 for various machine modes and numbers of operands.
28 Each optab applies to one operation.
29 For example, add_optab applies to addition.
31 The insn_code slot is the enum insn_code that says how to
32 generate an insn for this operation on a particular machine mode.
33 It is CODE_FOR_nothing if there is no such insn on the target machine.
35 The `lib_call' slot is the name of the library function that
36 can be used to perform the operation.
38 A few optabs, such as move_optab and cmp_optab, are used
41 struct optab_handlers
GTY(())
43 enum insn_code insn_code
;
50 struct optab_handlers handlers
[NUM_MACHINE_MODES
];
52 typedef struct optab
* optab
;
54 /* A convert_optab is for some sort of conversion operation between
55 modes. The first array index is the destination mode, the second
56 is the source mode. */
57 struct convert_optab
GTY(())
60 struct optab_handlers handlers
[NUM_MACHINE_MODES
][NUM_MACHINE_MODES
];
62 typedef struct convert_optab
*convert_optab
;
64 /* Given an enum insn_code, access the function to construct
65 the body of that kind of insn. */
66 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
68 /* Enumeration of valid indexes into optab_table. */
76 /* Signed and fp multiply */
79 /* Signed multiply, return high word */
82 /* Signed multiply with result one machine mode wider than args */
89 /* Signed divide-and-remainder in one */
93 /* Signed remainder */
96 /* Floating point remainder functions */
99 /* Convert float to integer in float fmt */
109 /* Arithmetic shift left */
111 /* Logical shift right */
113 /* Arithmetic shift right */
119 /* Signed and floating-point minimum value */
121 /* Signed and floating-point maximum value */
123 /* Unsigned minimum value */
125 /* Unsigned maximum value */
129 /* Arc tangent of y/x */
132 /* Move instruction. */
134 /* Move, preserving high part of register. */
136 /* Move, with a misaligned memory. */
139 /* Unary operations */
148 /* Bit scanning and counting */
168 /* Base-10 Exponential */
170 /* Base-2 Exponential */
174 /* Load exponent of a floating point number */
176 /* Radix-independent exponent */
179 /* Natural Logarithm */
181 /* Base-10 Logarithm */
183 /* Base-2 Logarithm */
185 /* logarithm of 1 plus argument */
187 /* Rounding functions */
198 /* Inverse tangent */
203 /* Compare insn; two operands. */
205 /* Used only for libcalls for unsigned comparisons. */
207 /* tst insn; compare one operand against 0 */
210 /* Floating point comparison optabs - used primarily for libfuncs */
222 /* Combined compare & jump/store flags/move operations. */
227 /* Push instruction. */
230 /* Conditional add instruction. */
233 /* Set specified field of vector operand. */
235 /* Extract specified field of vector operand. */
237 /* Initialize vector operand. */
239 /* Extract specified elements from vectors, for vector load. */
240 OTI_vec_realign_load
,
242 /* Perform a raise to the power of integer. */
248 extern GTY(()) optab optab_table
[OTI_MAX
];
250 #define add_optab (optab_table[OTI_add])
251 #define sub_optab (optab_table[OTI_sub])
252 #define smul_optab (optab_table[OTI_smul])
253 #define addv_optab (optab_table[OTI_addv])
254 #define subv_optab (optab_table[OTI_subv])
255 #define smul_highpart_optab (optab_table[OTI_smul_highpart])
256 #define umul_highpart_optab (optab_table[OTI_umul_highpart])
257 #define smul_widen_optab (optab_table[OTI_smul_widen])
258 #define umul_widen_optab (optab_table[OTI_umul_widen])
259 #define sdiv_optab (optab_table[OTI_sdiv])
260 #define smulv_optab (optab_table[OTI_smulv])
261 #define sdivv_optab (optab_table[OTI_sdivv])
262 #define sdivmod_optab (optab_table[OTI_sdivmod])
263 #define udiv_optab (optab_table[OTI_udiv])
264 #define udivmod_optab (optab_table[OTI_udivmod])
265 #define smod_optab (optab_table[OTI_smod])
266 #define umod_optab (optab_table[OTI_umod])
267 #define fmod_optab (optab_table[OTI_fmod])
268 #define drem_optab (optab_table[OTI_drem])
269 #define ftrunc_optab (optab_table[OTI_ftrunc])
270 #define and_optab (optab_table[OTI_and])
271 #define ior_optab (optab_table[OTI_ior])
272 #define xor_optab (optab_table[OTI_xor])
273 #define ashl_optab (optab_table[OTI_ashl])
274 #define lshr_optab (optab_table[OTI_lshr])
275 #define ashr_optab (optab_table[OTI_ashr])
276 #define rotl_optab (optab_table[OTI_rotl])
277 #define rotr_optab (optab_table[OTI_rotr])
278 #define smin_optab (optab_table[OTI_smin])
279 #define smax_optab (optab_table[OTI_smax])
280 #define umin_optab (optab_table[OTI_umin])
281 #define umax_optab (optab_table[OTI_umax])
282 #define pow_optab (optab_table[OTI_pow])
283 #define atan2_optab (optab_table[OTI_atan2])
285 #define mov_optab (optab_table[OTI_mov])
286 #define movstrict_optab (optab_table[OTI_movstrict])
287 #define movmisalign_optab (optab_table[OTI_movmisalign])
289 #define neg_optab (optab_table[OTI_neg])
290 #define negv_optab (optab_table[OTI_negv])
291 #define abs_optab (optab_table[OTI_abs])
292 #define absv_optab (optab_table[OTI_absv])
293 #define one_cmpl_optab (optab_table[OTI_one_cmpl])
294 #define ffs_optab (optab_table[OTI_ffs])
295 #define clz_optab (optab_table[OTI_clz])
296 #define ctz_optab (optab_table[OTI_ctz])
297 #define popcount_optab (optab_table[OTI_popcount])
298 #define parity_optab (optab_table[OTI_parity])
299 #define sqrt_optab (optab_table[OTI_sqrt])
300 #define sincos_optab (optab_table[OTI_sincos])
301 #define sin_optab (optab_table[OTI_sin])
302 #define asin_optab (optab_table[OTI_asin])
303 #define cos_optab (optab_table[OTI_cos])
304 #define acos_optab (optab_table[OTI_acos])
305 #define exp_optab (optab_table[OTI_exp])
306 #define exp10_optab (optab_table[OTI_exp10])
307 #define exp2_optab (optab_table[OTI_exp2])
308 #define expm1_optab (optab_table[OTI_expm1])
309 #define ldexp_optab (optab_table[OTI_ldexp])
310 #define logb_optab (optab_table[OTI_logb])
311 #define ilogb_optab (optab_table[OTI_ilogb])
312 #define log_optab (optab_table[OTI_log])
313 #define log10_optab (optab_table[OTI_log10])
314 #define log2_optab (optab_table[OTI_log2])
315 #define log1p_optab (optab_table[OTI_log1p])
316 #define floor_optab (optab_table[OTI_floor])
317 #define lfloor_optab (optab_table[OTI_lfloor])
318 #define ceil_optab (optab_table[OTI_ceil])
319 #define btrunc_optab (optab_table[OTI_btrunc])
320 #define round_optab (optab_table[OTI_round])
321 #define nearbyint_optab (optab_table[OTI_nearbyint])
322 #define rint_optab (optab_table[OTI_rint])
323 #define lrint_optab (optab_table[OTI_lrint])
324 #define tan_optab (optab_table[OTI_tan])
325 #define atan_optab (optab_table[OTI_atan])
326 #define copysign_optab (optab_table[OTI_copysign])
328 #define cmp_optab (optab_table[OTI_cmp])
329 #define ucmp_optab (optab_table[OTI_ucmp])
330 #define tst_optab (optab_table[OTI_tst])
332 #define eq_optab (optab_table[OTI_eq])
333 #define ne_optab (optab_table[OTI_ne])
334 #define gt_optab (optab_table[OTI_gt])
335 #define ge_optab (optab_table[OTI_ge])
336 #define lt_optab (optab_table[OTI_lt])
337 #define le_optab (optab_table[OTI_le])
338 #define unord_optab (optab_table[OTI_unord])
340 #define strlen_optab (optab_table[OTI_strlen])
342 #define cbranch_optab (optab_table[OTI_cbranch])
343 #define cmov_optab (optab_table[OTI_cmov])
344 #define cstore_optab (optab_table[OTI_cstore])
345 #define push_optab (optab_table[OTI_push])
346 #define addcc_optab (optab_table[OTI_addcc])
348 #define vec_set_optab (optab_table[OTI_vec_set])
349 #define vec_extract_optab (optab_table[OTI_vec_extract])
350 #define vec_init_optab (optab_table[OTI_vec_init])
351 #define vec_realign_load_optab (optab_table[OTI_vec_realign_load])
353 #define powi_optab (optab_table[OTI_powi])
355 /* Conversion optabs have their own table and indexes. */
356 enum convert_optab_index
374 extern GTY(()) convert_optab convert_optab_table
[CTI_MAX
];
376 #define sext_optab (convert_optab_table[CTI_sext])
377 #define zext_optab (convert_optab_table[CTI_zext])
378 #define trunc_optab (convert_optab_table[CTI_trunc])
379 #define sfix_optab (convert_optab_table[CTI_sfix])
380 #define ufix_optab (convert_optab_table[CTI_ufix])
381 #define sfixtrunc_optab (convert_optab_table[CTI_sfixtrunc])
382 #define ufixtrunc_optab (convert_optab_table[CTI_ufixtrunc])
383 #define sfloat_optab (convert_optab_table[CTI_sfloat])
384 #define ufloat_optab (convert_optab_table[CTI_ufloat])
386 /* These arrays record the insn_code of insns that may be needed to
387 perform input and output reloads of special objects. They provide a
388 place to pass a scratch register. */
389 extern enum insn_code reload_in_optab
[NUM_MACHINE_MODES
];
390 extern enum insn_code reload_out_optab
[NUM_MACHINE_MODES
];
392 /* Contains the optab used for each rtx code. */
393 extern GTY(()) optab code_to_optab
[NUM_RTX_CODE
+ 1];
396 typedef rtx (*rtxfun
) (rtx
);
398 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
399 gives the gen_function to make a branch to test that condition. */
401 extern rtxfun bcc_gen_fctn
[NUM_RTX_CODE
];
403 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
404 gives the insn code to make a store-condition insn
405 to test that condition. */
407 extern enum insn_code setcc_gen_code
[NUM_RTX_CODE
];
409 #ifdef HAVE_conditional_move
410 /* Indexed by the machine mode, gives the insn code to make a conditional
413 extern enum insn_code movcc_gen_code
[NUM_MACHINE_MODES
];
416 /* Indexed by the machine mode, gives the insn code for vector conditional
419 extern enum insn_code vcond_gen_code
[NUM_MACHINE_MODES
];
420 extern enum insn_code vcondu_gen_code
[NUM_MACHINE_MODES
];
422 /* This array records the insn_code of insns to perform block moves. */
423 extern enum insn_code movmem_optab
[NUM_MACHINE_MODES
];
425 /* This array records the insn_code of insns to perform block clears. */
426 extern enum insn_code clrmem_optab
[NUM_MACHINE_MODES
];
428 /* These arrays record the insn_code of two different kinds of insns
429 to perform block compares. */
430 extern enum insn_code cmpstr_optab
[NUM_MACHINE_MODES
];
431 extern enum insn_code cmpmem_optab
[NUM_MACHINE_MODES
];
433 /* Define functions given in optabs.c. */
435 extern rtx
expand_ternary_op (enum machine_mode mode
, optab ternary_optab
,
436 rtx op0
, rtx op1
, rtx op2
, rtx target
,
439 /* Expand a binary operation given optab and rtx operands. */
440 extern rtx
expand_binop (enum machine_mode
, optab
, rtx
, rtx
, rtx
, int,
443 extern bool force_expand_binop (enum machine_mode
, optab
, rtx
, rtx
, rtx
, int,
446 /* Expand a binary operation with both signed and unsigned forms. */
447 extern rtx
sign_expand_binop (enum machine_mode
, optab
, optab
, rtx
, rtx
,
448 rtx
, int, enum optab_methods
);
450 /* Generate code to perform an operation on one operand with two results. */
451 extern int expand_twoval_unop (optab
, rtx
, rtx
, rtx
, int);
453 /* Generate code to perform an operation on two operands with two results. */
454 extern int expand_twoval_binop (optab
, rtx
, rtx
, rtx
, rtx
, int);
456 /* Generate code to perform an operation on two operands with two
457 results, using a library function. */
458 extern bool expand_twoval_binop_libfunc (optab
, rtx
, rtx
, rtx
, rtx
,
461 /* Expand a unary arithmetic operation given optab rtx operand. */
462 extern rtx
expand_unop (enum machine_mode
, optab
, rtx
, rtx
, int);
464 /* Expand the absolute value operation. */
465 extern rtx
expand_abs_nojump (enum machine_mode
, rtx
, rtx
, int);
466 extern rtx
expand_abs (enum machine_mode
, rtx
, rtx
, int, int);
468 /* Expand the copysign operation. */
469 extern rtx
expand_copysign (rtx
, rtx
, rtx
);
471 /* Generate an instruction with a given INSN_CODE with an output and
473 extern void emit_unop_insn (int, rtx
, rtx
, enum rtx_code
);
475 /* Emit code to perform a series of operations on a multi-word quantity, one
477 extern rtx
emit_no_conflict_block (rtx
, rtx
, rtx
, rtx
, rtx
);
479 /* Emit one rtl insn to compare two rtx's. */
480 extern void emit_cmp_insn (rtx
, rtx
, enum rtx_code
, rtx
, enum machine_mode
,
483 /* The various uses that a comparison can have; used by can_compare_p:
484 jumps, conditional moves, store flag operations. */
485 enum can_compare_purpose
492 /* Return the optab used for computing the given operation on the type
493 given by the second argument. */
494 extern optab
optab_for_tree_code (enum tree_code
, tree
);
496 /* Nonzero if a compare of mode MODE can be done straightforwardly
497 (without splitting it into pieces). */
498 extern int can_compare_p (enum rtx_code
, enum machine_mode
,
499 enum can_compare_purpose
);
501 /* Return the INSN_CODE to use for an extend operation. */
502 extern enum insn_code
can_extend_p (enum machine_mode
, enum machine_mode
, int);
504 /* Generate the body of an insn to extend Y (with mode MFROM)
505 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
506 extern rtx
gen_extend_insn (rtx
, rtx
, enum machine_mode
,
507 enum machine_mode
, int);
509 /* Call this to reset the function entry for one optab. */
510 extern void set_optab_libfunc (optab
, enum machine_mode
, const char *);
511 extern void set_conv_libfunc (convert_optab
, enum machine_mode
,
512 enum machine_mode
, const char *);
514 /* Generate code for a FLOAT_EXPR. */
515 extern void expand_float (rtx
, rtx
, int);
517 /* Generate code for a FIX_EXPR. */
518 extern void expand_fix (rtx
, rtx
, int);
520 /* Return tree if target supports vector operations for COND_EXPR. */
521 bool expand_vec_cond_expr_p (tree
, enum machine_mode
);
523 /* Generate code for VEC_COND_EXPR. */
524 extern rtx
expand_vec_cond_expr (tree
, rtx
);
526 #endif /* GCC_OPTABS_H */